BOBCAT 430 COMPACT EXCAVATOR Service Repair Manual SN AACF11001 & Above

430 Service Manual S/N AA8711001 & Above S/N AA8811001 & Above S/N AACF11001 & Above S/N AACG11001 & Above

6986955 (4-08)

Printed in U.S.A.

© Bobcat Company 2008

MAINTENANCE SAFETY WARNING

Instructions are necessary before operating or servicing machine. Read and understand the Operation & Maintenance Manual, Operator’s Handbook and signs (decals) on machine. Follow warnings and instructions in the manuals when making repairs, adjustments or servicing. Check for correct function after adjustments, repairs or service. Untrained operators and failure to follow W-2003-0903 instructions can cause injury or death.

Safety Alert Symbol: This symbol with a warning statement, means: “Warning, be alert! Your safety is involved!” Carefully read the message that follows.

CORRECT

B-10731a

Never service the Hydraulic Excavator instructions.

Bobcat without

WRONG

B-14147

Have good ventilation when welding or grinding painted parts.

Wear dust mask when grinding painted parts. Toxic dust and gas can be produced.

CORRECT

CORRECT

B-14148

Use the correct procedure to lift and support the excavator.

Always lift the blade fully before installing jackstands.

B-14142

Cleaning and maintenance are required daily.

WRONG

WRONG

B-14145

B-14141

Vent exhaust to outside when engine must be run for service.

Exhaust system must be tightly sealed. Exhaust Fumes can kill without warning.

Always lower the bucket and blade to the ground before doing any maintenance.

Never modify equipment or add attachments not approved by Bobcat Company.

WRONG

WRONG

WRONG

B-14146

B-14143 B-16102

B-6589 B-16102

Stop, cool and clean engine of flammable materials before checking fluids.

Never service or adjust machine with the engine running unless instructed to do so in the manual.

Avoid contact with leaking hydraulic fluid or diesel fuel under pressure. It can penetrate the skin or eyes.

Never fill fuel tank with engine running, while smoking or when near open flame.

Keep body, jewelry and clothing away from moving parts, electrical contact, hot parts and exhaust.

Wear eye protection to guard from battery acid, compressed springs, fluids under pressure and flying debris when engines are running or tools are used.

Use eye protection approved for type of welding.

Keep rear door closed except for service. Close and latch door before operating the excavator.

Lead-acid batteries produce flammable and explosive gases.

Keep arcs, sparks, flames and lighted tobacco away from batteries.

Batteries contain acid which burns eyes or skin on contact.

Wear protective clothing. If acid contacts body, flush well with water. For eye contact flush well and get immediate medical attention.

Maintenance procedures which are given in the Operation & Maintenance Manual can be performed by the owner/ operator without any specific technical training. Maintenance procedures which are not in the Operation & Maintenance Manual must be performed ONLY BY QUALIFIED BOBCAT SERVICE PERSONNEL. Always use genuine Bobcat replacement parts. The Service Safety Training Course is available from your Bobcat dealer.

MSW20-0805

ALPHABETICAL INDEX AIR CLEANER ............................................. 10-01, 70-01 AIR CONDITIONING SERVICE.............................. 80-01 AIR CONDITIONING SYSTEM FLOW ................... 80-01 ALTERNATOR ....................................................... 60-01 ANGLE BLADE ....................................................... 40-01 ANGLE BLADE ASSEMBLY ................................... 40-01 ANGLE BLADE CUTTING EDGE ........................... 40-01 ANGLE BLADE CYLINDER .................................... 20-01 ANGLE BLADE VALVE ........................................... 20-01 ARM ........................................................................ 50-01 ARM CYLINDER .................................................... 20-01 BASIC TROUBLESHOOTING ................................ 80-01 BATTERY................................................................ 60-01 BLADE ................................................................... 40-01 BLADE CONTROL.................................................. 50-01 BLADE CYLINDER ................................................. 20-01 BLOWER FAN ........................................................ 80-01 BOOM ..................................................................... 50-01 BOOM CYLINDER .................................................. 20-01 BOOM SWING CYLINDER..................................... 20-01 BOOM SWING LOCK VALVE ................................. 20-01 BUCKET ................................................................. 50-01 BUCKET CYLINDER .............................................. 20-01 BUILD UP VALVE ................................................... 20-01 CAB......................................................................... 50-01 CASE DRAIN FILTER ............................................. 20-01 CLAMP CYLINDER ............................................... 20-01 COMPONENTS ..................................................... 80-01 COMPRESSOR ..................................................... 80-01 CONDENSOR ........................................................ 80-01 CONVERSIONS ...............................................SPEC-01 CONTROL LINKAGE ASSEMBLY.......................... 50-01 CONTROL PATTERN SELECTOR VALVE ............20-01 COOLING FAN ....................................................... 20-01 COOLING SYSTEM................................................ 10-01 CROSSPORT RELIEF VALVE ............................... 20-01 DELUXE INSTRUMENT PANEL SETUP................ 60-01 DIAGNOSTICS SERVICE CODE ........................... 60-01 DIRECT TO TANK VALVE ...................................... 20-01 DRIVE BELT ........................................................... 30-01 DRIVE BELT SHIELD ............................................. 30-01 ELECTRICAL SYSTEM INFORMATION ................ 60-01 ENGINE .................................................................. 70-01 ENGINE ACCESSORY DRIVE BELT .................... 10-01 ENGINE COMPONENTS AND TESTING .............. 70-01 ENGINE FLYWHEEL .............................................. 70-01 ENGINE LUBRICATION SYSTEM.......................... 10-01 ENGINE SPECIFICATIONS...............................SPEC-01 ENGINE SPEED CONTROL .................................. 50-01

EVAPORATOR ........................................................80-01 EVAPORATOR/HEATER UNIT................................80-01 EXPANSION VALVE ................................................80-01 EXTENDIBLE ARM CYLINDER ..............................20-01 FAN/CHARGE PUMP ..............................................30-01 FLOORMAT AND FLOOR PLATES ........................50-01 FUEL, COOLANT AND LUBRICANTS ............. SPEC-01 FUEL LEVEL SENDER ...........................................60-01 FUEL SYSTEM........................................................10-01 FUEL TANK .............................................................50-01 GENERAL AIR CONDITIONING SERVICE GUIDELINES .................................................................................. 80-01

HEATER AIR FILTER (WITH CAB OPTION ONLY) .................................................................................10-01 HEATER COIL .........................................................80-01 HEATER VALVE ......................................................80-01 HORN .....................................................................50-01 HYDRAULIC CONTROL VALVE .............................20-01 HYDRAULIC CONNECTION SPECS ............... SPEC-01 HYDRAULIC FLUID SPECIFICATIONS............ SPEC-01 HYDRAULIC FILTER MOUNT.................................20-01 HYDRAULIC PUMP ................................................20-01 HYDRAULIC PUMP START-UP ..............................20-01 HYDRAULIC RESERVOIR......................................20-01 HYDRAULIC SYSTEM ............................................10-01 HYDRAULIC SYSTEM INFORMATION .................20-01 HYDRAULIC X-CHANGE VALVE............................50-01 HYDROSTATIC PUMP ............................................30-01 HYDROSTATIC SYSTEM INFORMATION..............30-01 LEFT CONTROL LEVER (JOYSTICK) ...................20-01 LEFT CONSOLE .....................................................50-01 LIFTING AND BLOCKING THE EXCAVATOR ........10-01 LIFTING THE EXCAVATOR ....................................10-01 LIGHTS....................................................................60-01 LOWER TRACK ROLLER .......................................40-01 LUBRICATION OF THE HYDRAULIC EXCAVATOR .................................................................................10-01 MAIN RELIEF VALVES............................................20-01 MANIFOLD ASSEMBLY/ACCUMULATOR .............20-01 MUFFLER................................................................70-01 OIL COOLER...........................................................20-01 OPERATOR CAB (ROPS/TOPS) ............................10-01 PORT RELIEF VALVES...........................................20-01 PRESSURE REDUCING VALVE.............................20-01 PRESSURE RELIEF VALVE ..................................80-01 PRESSURE SWITCH .............................................80-01

Continued On Next Page 430 Service Manual

ALPHABETICAL INDEX (CONT’D) RADIATOR ..............................................................70-01 RECEIVER/DRIER .................................................80-01 RECONDITIONING THE ENGINE .........................70-01 REGULAR MAINTENANCE ...................................80-01 RIGHT CONTROL LEVER (JOYSTICK) .................20-01 RIGHT CONSOLE ...................................................50-01 RIGHT PEDAL AND LINKAGE................................50-01 RIGHT SIDE COVER ..................................10-01, 50-01 ROPS CANOPY.......................................................50-01 SAFETY ..................................................................80-01 SEAT AND SEAT MOUNT.......................................50-01 SERVICE SCHEDULE ...........................................10-01 SPARK ARRESTOR MUFFLER ..............................10-01 SPECIFICATIONS ............................................. SPEC-01 STARTER ................................................................60-01 SWING CIRCLE GEAR ...........................................40-01 SWING FRAME .......................................................50-01 SWING MOTOR .....................................................20-01 SWING MOTOR DRIVE CARRIER .........................20-01 SWIVEL JOINT........................................................20-01 SYSTEM CHARGING AND RECLAMATION ..........80-01 SYSTEM TROUBLESHOOTING CHART ...............80-01 TAILGATE .....................................................10-01, 50-01 TEMPERATURE/PRESSURE ................................80-01 THERMOSTAT.........................................................80-01 TORQUE SPECIFICATIONS ............................SPEC-01 TRACK DAMAGE IDENTIFICATION.......................40-01 TRACK FRAME ......................................................40-01 TRACK IDLER ........................................................40-01 TRACKS ..................................................................40-01 TRANSPORTING THE EXCAVATOR......................10-01 TRAVEL CONTROL VALVE ....................................20-01 TRAVEL CONTROLS ..............................................50-01 TRAVEL MOTOR..........................................10-01, 20-01 TRAVEL PILOT PRESSURE ...................................30-01 TROUBLESHOOTING.............................................70-01 TWO SPEED SWITCH ............................................60-01 UPPERSTRUCTURE ..............................................50-01 UPPERSTRUCTURE SLEW LOCK .............10-01, 50-01 UPPER TRACK ROLLER........................................40-01 X-CHANGE .............................................................50-01 X-CHANGE (HYDRAULIC)......................................50-01

430 Service Manual

SAFETY & MAINTENANCE

CONTENTS SAFETY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V FOREWORD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . III

HYDRAULIC SYSTEM

SERIAL NUMBER LOCATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . IX DELIVERY REPORT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . X

HYDROSTATIC SYSTEM

BOBCAT EXCAVATOR IDENTIFICATION . . . . . . . . . . . . . . . . . . . . XI SAFETY AND MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . . . . . 10-01 HYDRAULIC SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-01 HYDROSTATIC SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30-01 UNDERCARRIAGE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40-01 UPPERSTRUCTURE & SWING SECTION . . . . . . . . . . . . . . . . 50-01 ELECTRICAL SYSTEM AND ANALYSIS . . . . . . . . . . . . . . . . . . 60-01

UNDERCARRIAGE UPPERSTRUCTURE & SWING SECTION ELECTRICAL SYSTEM & ANALYSIS

ENGINE SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70-01 HEATING, VENTILATION, AIR CONDITIONING . . . . . . . . . . . . 80-01

ENGINE SERVICE

SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SPEC-01 HVAC

SPECIFICATIONS

I

430 Service Manual

FOREWORD This manual is for the Bobcat excavator mechanic. It provides necessary servicing and adjustment procedures for the Bobcat excavator and its component parts and systems. Refer to the Operation & Maintenance Manual for operating instructions, starting procedure, daily checks, etc.

A general inspection of the following items must be made after the excavator has had service or repair: 1. Check that the ROPS/TOPS/ FOPS is in good condition and is not modified.

9. Safety treads must be in good condition.

2. Check that ROPS/TOPS mounting hardware is tightened and is Bobcat approved.

10. Check for correct function of indicator lamps.

3. The seat belt must be correctly installed, functional and in good condition.

11. Check hydraulic fluid level, engine oil level and fuel supply.

4. Machine signs (decals) must be legible and in the correct location.

12. Inspect for fuel, hydraulic fluid leaks.

5. Travel levers, control levers and foot pedals must return to neutral. Check that the pedal locks are in working order.

13. Lubricate the excavator.

6. Check for correct function of the work lights.

14. Check the condition of the battery and cables.

7. Enclosure door latches must open and close freely.

15. Inspect the air cleaner for damage or leaks. Check the condition of the element.

8. Attachment locking pins must function correctly and be in good condition.

16. Check the electrical charging system.

oil

or

FW EXC-0308 SM III

430 Service Manual

20. Check tracks for wear and tension. Use only approved tracks.

24. Check the control console interlocks for correct function.

21. Inspect for loose or broken parts or connections.

25. Inspect the X-Change for wear or damage. Repair or replace damaged parts.

22. Check for any field modification not completed.

26. Check function or condition of all equipped options and accessories (examples: special applications kit, motion alarm, etc.).

23. Operate the machine and check all functions.

27. Recommend to the owner that all necessary corrections be made before the machine is returned to service.

CALIFORNIA PROPOSITION 65 WARNING Diesel engine exhaust and some of its constituents are known to the state of California to cause cancer, birth defects and other reproductive harm.

FW EXC-0308 SM

IV

430 Service Manual

SAFETY INSTRUCTIONS

The following publications provide information on the safe use and maintenance of the Bobcat machine and attachments:

Safety Alert Symbol This symbol with a warning statement means: “Warning, be alert! Your safety is involved!”

Carefully read the message that follows.

•

The Delivery Report is used to assure that complete instructions have been given to the new owner and that the machine is in safe operating condition.

•

The Operation & Maintenance Manual delivered with the machine or attachment contains operating information as well as routine maintenance and service procedures. It is a part of the machine and can be stored in a container provided on the machine.

Replacement Operation & Maintenance Manuals can be ordered from your Bobcat dealer.

•

Machine signs (decals) instruct on the safe operation and care of your Bobcat machine or attachment. The signs and their locations are shown in the Operation & Maintenance Manual. Replacement signs are available from your Bobcat dealer.

•

An Operator’s Handbook fastened to the operator cab. It’s brief instructions are convenient to the operator. The handbook is available from your dealer in an English edition or one of many other languages.

See your Bobcat dealer for more information on translated versions.

•

The AEM Safety Manual delivered with the machine gives general safety information.

•

The Service Manual and Parts Manual are available from your dealer for use by mechanics to do shoptype service and repair work.

•

The Compact Excavator Operator Training Course is available through your local dealer or at www.training.bobcat.com or www.bobcat.com.

This course is intended to provide rules and practices of correct operation of the Bobcat excavator. The course is available in English and Spanish versions.

•

Service Safety Training Courses are available from your Bobcat dealer or at www.training.bobcat.com or www.bobcat.com. They provide information for safe and correct service procedures.

•

The Bobcat compact excavator Safety Video is available from your Bobcat dealer or at www.training.bobcat.com or www.bobcat.com.

WARNING Instructions are necessary before operating or servicing machine. Read and understand the Operation & Maintenance Manual, Operator’s Handbook and signs (decals) on machine. Follow warnings and instructions in the manuals when making repairs, adjustments or servicing. Check for correct function after adjustments, repairs or service.

Untrained operators and failure to follow instructions can cause injury or death.

W-2003-0903

IMPORTANT This notice identifies procedures which must be followed to avoid damage to the machine.

I-2019-0284

DANGER The signal word DANGER on the machine and in the manuals indicates a hazardous situation which, if not avoided, will result in death or serious injury.

D-1002-1107

WARNING The signal word WARNING on the machine and in the manuals indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

W-2044-1107

SI EXC-0308 SM V

430 Service Manual

FIRE PREVENTION

Hydraulic System Check hydraulic tubes, hoses and fittings for damage and leakage. Never use open flame or bare skin to check for leaks. Hydraulic tubes and hoses must be properly routed and have adequate support and secure clamps.

Tighten or replace any parts that show leakage.

Maintenance

Always clean fluid spills. Do not use gasoline or diesel fuel for cleaning parts. Use commercial nonflammable solvents.

The machine and some attachments have components that are at high temperatures under normal operating conditions. The primary source of high temperatures is the engine and exhaust system. The electrical system, if damaged or incorrectly maintained, can be a source of arcs or sparks.

Fueling

Flammable debris (leaves, straw, etc.) must be removed regularly. If flammable debris is allowed to accumulate, it can cause a fire hazard. Clean often to avoid this accumulation. Flammable debris in the engine compartment is a potential fire hazard.

Stop the engine and let it cool before adding fuel. No smoking! Do not refuel a machine near open flames or sparks. Fill the fuel tank outdoors.

The operator’s area, engine compartment and engine cooling system must be inspected every day and cleaned if necessary to prevent fire hazards and overheating.

Starting Do not use ether or starting fluids on any engine that has glow plugs. These starting aids can cause explosion and injure you or bystanders.

All fuels, most lubricants and some coolants mixtures are flammable. Flammable fluids that are leaking or spilled onto hot surfaces or onto electrical components can cause a fire.

Use the procedure in the Operation & Maintenance Manual for connecting the battery and for jump starting.

Operation Do not use the machine where exhaust, arcs, sparks or hot components can contact flammable material, explosive dust or gases.

Spark Arrestor Exhaust System The spark arrestor exhaust system is designed to control the emission of hot particles from the engine and exhaust system, but the muffler and the exhaust gases are still hot.

Electrical

Check the spark arrestor exhaust system regularly to make sure it is maintained and working properly. Use the procedure in the Operation & Maintenance Manual for cleaning the spark arrestor muffler (if equipped).

Check all electrical wiring and connections for damage.

Keep the battery terminals clean and tight. Repair or replace any damaged part or wires that are loose or frayed.

Battery gas can explode and cause serious injury. Use the procedure in the Operation & Maintenance Manual for connecting the battery and for jump starting. Do not jump start or charge a frozen or damaged battery. Keep any open flames or sparks away from batteries. Do not smoke in battery charging area.

SI EXC-0308 SM

VII

430 Service Manual

FIRE PREVENTION (CONT’D) Welding And Grinding Always clean the machine and attachment, disconnect the battery, and disconnect the wiring from the Bobcat controllers before welding. Cover rubber hoses, battery and all other flammable parts. Keep a fire extinguisher near the machine when welding.

Have good ventilation when grinding or welding painted parts. Wear dust mask when grinding painted parts.

Toxic dust or gas can be produced.

Dust generated from repairing nonmetallic parts such as hoods, fenders or covers can be flammable or explosive.

Repair such components in a well ventilated area away from open flames or sparks.

Fire Extinguishers

Know where fire extinguishers and first aid kits are located and how to use them. Inspect the fire extinguisher and service the fire extinguisher regularly.

Obey the recommendations on the instructions plate.

SI EXC-0308 SM VIII

430 Service Manual

SERIAL NUMBER LOCATIONS

Engine Serial Number

Always use the serial number of the excavator when requesting service information or when ordering parts.

Early or later models (identification made by serial number) may use different parts, or it may be necessary to use a different procedure in doing a specific service operation.

Figure 2

1

Figure 1

P-42149

Figure 3

1 P-42153

Excavator Serial Number

1

The excavator serial number plate (Item 1) [Figure 1] is located on the frame of the machine in the location shown.

Explanation of Excavator Serial Number: XXXX XXXXX P-42150

Module 2. - Production Sequence (Series) The engine serial number (Item 1) [Figure 2] & [Figure 3] is located on the engine in the location shown.

Module 1. - Model / Engine Combination 1. The 4 digit Model/Engine Combination Module number identifies the model number and engine combination.

2. The 5 digit Production Sequence Number identifies the order which the excavator is produced.

IX

430 Service Manual

DELIVERY REPORT Figure 4

B-16315

The delivery report must be filled out by the dealer and signed by the owner or operator when the Bobcat Excavator is delivered. An explanation of the form must be given to the owner. Make sure it is filled out completely [Figure 4].

X

430 Service Manual

BOBCAT EXCAVATOR IDENTIFICATION

ARM CYLINDER OPERATOR HANDBOOK

AUXILIARY QUICK COUPLERS

BUCKET CYLINDER

OPERATOR SEAT With SEAT BELT

CONTROL LEVERS (JOYSTICKS)

BOOM

ARM BUCKET LINK

BOOM CYLINDER

BLADE CYLINDERS

X-CHANGETM

BUCKET

*CANOPY/CAB (ROPS/TOPS)

RIGHT SIDE COVER

BLADE

TAIL GATE

TRACK FRAME UPPERSTRUCTURE TIE DOWN TRACK

B19745 B19746

* FOGS (Falling Object Guards) is available from your Bobcat Excavator dealer.

XI

430 Service Manual

SAFETY & MAINTENANCE

SAFETY AND MAINTENANCE AIR CLEANER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-60-1 Daily Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-60-1 Replacing The Elements . . . . . . . . . . . . . . . . . . . . . . . . . . 10-60-1 ENGINE COOLING SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . .

Checking Coolant Level . . . . . . . . . . . . . . . . . . . . . . . . . . .

Cleaning The Cooling System . . . . . . . . . . . . . . . . . . . . . .

Removing And Replacing Coolant . . . . . . . . . . . . . . . . . . .

10-70-1 10-70-1 10-70-1 10-70-2

ALTERNATOR BELT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-140-1 Belt Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-140-1 Belt Tension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-140-1 ENGINE LUBRICATION SYSTEM . . . . . . . . . . . . . . . . . . . . .

Checking And Adding Engine Oil. . . . . . . . . . . . . . . . . . . .

Removing And Replacing Oil And Filter. . . . . . . . . . . . . . .

Engine Oil Chart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10-90-1 10-90-1 10-90-1 10-90-1

EXCAVATOR STORAGE AND RETURN TO SERVICE . . . . 10-170-1 Return to Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-170-1 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-170-1 FUEL SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Biodiesel Blend Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Draining The Fuel Tank . . . . . . . . . . . . . . . . . . . . . . . . . . .

Filling The Fuel Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Fuel Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Inline Fuel Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Removing Air From The Fuel System . . . . . . . . . . . . . . . .

Removing Water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Replacing Element. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10-80-1 10-80-1 10-80-4 10-80-2 10-80-1 10-80-4 10-80-4 10-80-3 10-80-3

HEATER AIR FILTER (WITH CAB OPTION ONLY) . . . . . . . . 10-61-1 Removal And Installation . . . . . . . . . . . . . . . . . . . . . . . . . . 10-61-1 HYDRAULIC SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Checking And Adding Fluid . . . . . . . . . . . . . . . . . . . . . . .

Diagnostic Couplers. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Hydraulic Fluid Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Removing And Replacing The Fan Filter . . . . . . . . . . . . .

Removing And Replacing The Case Drain Filter . . . . . . .

Removing And Replacing The Hydraulic Filter . . . . . . . .

Removing And Replacing The Hydraulic Fluid . . . . . . . .

10-100-1 10-100-1 10-100-5 10-100-2 10-100-5 10-100-4 10-100-4 10-100-3

Continued On Next Page

10-01

430 Service Manual

SAFETY AND MAINTENANCE (CONT’D) LIFTING AND BLOCKING THE EXCAVATOR . . . . . . . . . . . . 10-10-1 Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-10-1 LUBRICATNG THE EXCAVATOR . . . . . . . . . . . . . . . . . . . . . 10-110-1 Lubrication Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-110-1 LIFTING THE EXCAVATOR . . . . . . . . . . . . . . . . . . . . . . . . . . 10-12-1 Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-12-1 MOTION ALARM SYSTEM (IF EQUIPPED). . . . . . . . . . . . .

Adjusting Switch Position. . . . . . . . . . . . . . . . . . . . . . . . .

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Inspecting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10-190-1 10-190-1 10-190-1 10-190-1

OPERATOR CAB (ROPS/TOPS) . . . . . . . . . . . . . . . . . . . . . .

Cab Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Front Window. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Front Wiper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Right Side Window. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Heating, Ventilation, and Air Conditioning Duct . . . . . . . . .

Window Washer Reservoir. . . . . . . . . . . . . . . . . . . . . . . . .

10-20-1 10-20-1 10-20-1 10-20-2 10-20-4 10-20-5 10-20-6 10-20-4

PIVOT PINS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-160-1 Inspection And Maintenance . . . . . . . . . . . . . . . . . . . . . . 10-160-1 RIGHT SIDE COVER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-41-1 Opening And Closing The Right Side Cover . . . . . . . . . . . 10-41-1 SEAT BELT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-150-1 Inspection And Maintenance . . . . . . . . . . . . . . . . . . . . . . 10-150-1 SERVICE SCHEDULE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-50-1 Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-50-1 SPARK ARRESTOR MUFFLER . . . . . . . . . . . . . . . . . . . . . . 10-130-1 Cleaning Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-130-1 Continued On Next Page

10-02

430 Service Manual

SAFETY AND MAINTENANCE (CONT’D) STOPPING THE ENGINE AND LEAVING THE EXCAVATOR . . . . . . 10-180-1 Emergency Exits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-180-2 Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-180-1 TAILGATE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-40-1 Adjusting The Latch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-40-1 Opening And Closing The Tailgate . . . . . . . . . . . . . . . . . . . . . . . . . 10-40-1 TRANSPORTING THE EXCAVATOR ON A TRAILER . . . . . . . . . . . . . 10-30-1 Fastening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-30-1 Loading And Unloading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-30-1 TRAVEL MOTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-120-1 Checking And Adding Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-120-1 Removing And Replacing Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-120-1 UPPERSTRUCTURE SLEW LOCK . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-11-1 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-11-1

10-03

430 Service Manual

LIFTING AND BLOCKING THE EXCAVATOR Procedure Figure 10-10-1

1

1 P-42468

Raise one side of the machine (approximately 4 in.) using the boom and arm [Figure 10-10-1].

Raise the blade fully and install jack stands under the blade and track frame (Item 1) [Figure 10-10-1]. Lower the boom until all machine weight is on the jack stands.

NOTE: For machines equipped with angle blade, make sure blade is in the straight position prior to lifting.

Repeat the procedure for the other side.

Stop the engine.

WARNING AVOID INJURY Keep fingers and hands out of pinch points when checking the track tension.

W-2142-0903

WARNING Put jackstands under the blade and rear corners of the undercarriage before working under the machine.

Failure to block up the machine may allow it to move or fall and result in injury or death.

W-2218-1195

10-10-1

430 Service Manual

UPPERSTRUCTURE SLEW LOCK Operation Figure 10-11-1

1

2

P-46188

Push down on the front (Item 1) [Figure 10-11-1] of the foot pedal to engage the upperstructure swing lock.

Push down on the rear (Item 2) [Figure 10-11-1] disengage the upperstructure slew lock.

NOTE: upperstructure must be in the straight forward or straight rearward position for upperstructure to lock.

WARNING AVOID INJURY The upperstructure slew lock lever must be engaged when transporting the machine.

W-2197-0904

WARNING AVOID INJURY OR DEATH Never use attachments or buckets which are not approved by Bobcat Company. Buckets and attachments for safe loads of specified densities are approved for each model. Unapproved attachments can cause injury or death.

W-2052-0907

10-11-1

430 Service Manual

LIFTING THE EXCAVATOR

Figure 10-12-2

Procedure

2

NOTE: For machines equipped with angle blade, make sure blade is in the straight position prior to lifting.

1

Figure 10-12-1

2

N-23186

N-23184

1 Fasten chains to the ends of the blade (Item 1) [Figure 10-12-1] & [Figure 10-12-2] and up to a lifting device above the canopy/cab. Place protective material between the chains and ROPS/tailgate to prevent damage.

Install a 1 in. (25 mm) bolt and nut (Grade 5 or 8) through the holes at the boom (Item 2) [Figure 10-12-1] &[Figure 10-12-2]. Fasten a chain from the bolt to the lift fixture.

P-42249

Fully extend the cylinders of the bucket, arm, and boom so that the excavator is in the position as shown [Figure 10-12-1].

Figure 10-12-3

Swing upperstructure so the blade is to the rear.

Engage the swing locking lever.

Raise the blade all the way.

45°

Put all the control levers in neutral.

WARNING •

• • •

AVOID INJURY OR DEATH Use a lifting fixture with sufficient capacity for the weight of the excavator plus any added attachments.

Maintain center of gravity and balance when lifting.

Do not swing boom or upperstructure. Engage the upperstructure slew lock.

Never lift with operator on machine.

W-2202-0607

MS-2447

Keep the angle between the front and rear chains less 45° [Figure 10-12-3].

10-12-1

430 Service Manual

OPERATOR CAB (ROPS/TOPS)

Cab Door

Description

Figure 10-20-1

The excavator has an optional operator cab (ROPS/ TOPS) (Roll Over Protective Structure / Tip Over Protective Structure). The ROPS / TOPS meets SAE J1040, ISO 3471 and ISO 12117.

2

WARNING Never modify operator cab by welding, grinding, drilling holes or adding attachments unless instructed to do so by Bobcat Company. Changes to the cab can cause loss of operator protection from rollover and falling objects, and result in injury or death.

W-2069-0200

1

P-68192

The cab door (Item 1) [Figure 10-20-1] can be locked with the same key as the starter switch (if equipped).

Push the door all the way open (Item 2) [Figure 10-20-1] until the latch engages to hold the door in the open position.

Figure 10-20-2

P-68193

When the door is in the open position, push down on the latch (Item 1) [Figure 10-20-2] and close the door.

From inside the cab, open the door using the handle (Item 2) [Figure 10-20-2].

10-20-1

430 Service Manual

Figure 10-20-5

OPERATOR CAB (ROPS/TOPS) (CONT’D) Front Window Figure 10-20-3

1

1

P-46194

Turn the two top latches (Item 1) [Figure 10-20-5] to the unlocked position.

P-42572

Figure 10-20-6 The front window is equipped with a wiper (Item 1) [Figure 10-20-3] and washer.

Opening The Front Window Figure 10-20-4 1

P-42581

Use both window grab handles to pull the top of the window in [Figure 10-20-6].

Continue moving the window in and up over the operator’s head until the window is fully raised.

P-46193

Retract the two top window latch pins (Item 1) [Figure 10-20-4].

10-20-2

430 Service Manual

OPERATOR CAB (ROPS/TOPS) (CONT’D) Front Window (Cont’d) Figure 10-20-7

1 2 P-46195

When the window is fully raised, the latch (Item 1) will close on the bracket. Turn the two top latches (Item 2) [Figure 10-20-7] to the locked position.

Closing The Front Window Support the window while releasing both window latch pins and placing the pins in the unlocked position [Figure 10-20-7].

Support the window using the left grab handle and pull down on the latch (Item 1) [Figure 10-20-7] to release the window.

Use both window grab handles to pull the window down [Figure 10-20-6].

Rotate the top latches (Item 1) [Figure 10-20-5] to the locked position (Item 1) [Figure 10-20-4].

10-20-3

430 Service Manual

OPERATOR CAB (ROPS / TOPS) (CONT’D)

Window Washer Reservoir

Front Wiper

Figure 10-20-9

Figure 10-20-8 1

1

P-50231 P-49095

The window washer reservoir (Item 1) [Figure 10-20-9] is located under the right side cover.

The front window is equipped with a wiper (Item 1) [Figure 10-20-8] and washer.

10-20-4

430 Service Manual

OPERATOR CAB (ROPS/TOPS) (CONT’D)

Opening the right front window

Right Side Window

Figure 10-20-12

Opening the right rear window Figure 10-20-10

1 1 P-49119

Pull back on the latch (Item 1) [Figure 10-20-12].

P-49176

Figure 10-20-13 Pull forward on the latch (Item 1) [Figure 10-20-10].

Figure 10-20-11

1

P-49120

1

Pull the latch/handle (Item 1) [Figure 10-20-13] back to open the window.

P-49177

Push the handle forward to close the window.

Pull the latch/handle (Item 1) [Figure 10-20-11] forward to open the window.

Push the handle back to close the window.

10-20-5

430 Service Manual

Figure 10-20-15

OPERATOR CAB (ROPS / TOPS) (CONT’D) Heating, Ventilation, and Air Conditioning Duct

1 NOTE: The air conditioner duct can be ordered and used on heater models.

There are two HVAC ducts that the operator can choose to install.

2 3

Figure 10-20-14

1 P-42588

Place the air conditioning duct (Item 1) on the housing and over the locking stud (Item 2) [Figure 10-20-15].

Reinstall the screw (Item 3) [Figure 10-20-15].

Figure 10-20-16 P-42587

The small duct (Item 1) [Figure 10-20-14] is standard for heater use.

The large duct (Item 1) [Figure 10-20-14] is standard for models that have air conditioner available.

NOTE: This duct (Item 1) [Figure 10-20-14] can be removed for improved operator visibility.

1 Installation P-42590

Remove the screw and pull straight up to remove the duct (Item 1) [Figure 10-20-14].

Fully seat the duct and rotate the lock (Item 1) [Figure 10-20-16].

10-20-6

430 Service Manual

TRANSPORTING THE EXCAVATOR ON A TRAILER

Put blocks at the front and rear of the tracks.

Loading And Unloading

Fastening

When transporting the machine, observe the rules, motor vehicle laws, and vehicle limit ordinances. Use a transport and towing vehicle of adequate length and capacity.

Figure 10-30-2

1 Secure the parking brakes and block the wheels of the transport vehicle.

Align the ramps with the center of the transport vehicle.

Secure the ramps to the truck bed and be sure ramp angle does not exceed 15 degrees.

Use metal loading ramps with a slip resistant surface.

1 Use ramps that are the correct length and width and can support the weight of the machine.

The rear of the trailer must be blocked or supported when loading or unloading the excavator to prevent the front of the transport vehicle from raising.

P-42247

Figure 10-30-3

Determine the direction of the track movement before moving the machine (blade forward).

Engage the slew lock.

1

Figure 10-30-1

P-42248

Fasten chains to the front corners of the blade (Item 1) [Figure 10-30-2] and to the tie down loop at the rear (Item 1) [Figure 10-30-3] to prevent it from moving when going up or down slopes, or during sudden stops.

Use chain binders to tighten the chains and then safely tie the chain binder levers to prevent loosening.

P-42246

Move the machine forward onto the transport vehicle [Figure 10-30-1].

Do not change direction of the machine while it is on the ramps.

Lower the boom, arm, bucket and blade to the transport vehicle.

Stop the engine and remove the key (if equipped).

WARNING AVOID SERIOUS INJURY OR DEATH Adequately designed ramps of sufficient strength are needed to support the weight of the machine when loading onto a transport vehicle. Wood ramps can break and cause personal injury.

W-2058-0807

10-30-1

430 Service Manual

TAILGATE

Adjusting The Latch

Opening And Closing The Tailgate

Figure 10-40-2

WARNING

1

AVOID INJURY OR DEATH Never service or adjust the machine when the engine is running unless instructed to do so in the manual.

W-2012-0497

WARNING P-42170

Keep the rear door closed when operating the machine. Failure to do so could seriously injure a bystander.

W-2020-1285

The door catch (Item 1) [Figure 10-40-2] can be adjusted for alignment.

Close the tailgate before operating the excavator.

Figure 10-40-1

1

P-42169

Pull the latch (Item 1) [Figure 10-40-1] and pull the tailgate open.

Push firmly to close the tailgate.

10-40-1

430 Service Manual

RIGHT SIDE COVER Opening And Closing The Right Side Cover Figure 10-41-1

1

P-42187

Pull the latch (Item 1) [Figure 10-41-1] and raise the right side cover.

NOTE: The right side cover can be locked using the start key.

10-41-1

430 Service Manual

SERVICE SCHEDULE Chart Maintenance work must be done at regular intervals. Failure to do so will result in excessive wear and early failures. The service schedule is a guide for correct maintenance of the Bobcat Excavator.

WARNING

Instructions are necessary before operating or servicing machine. Read and understand the Operation & Maintenance Manual, Operator’s Handbook and signs (decals) on machine. Follow warnings and instructions in the manuals when making repairs, adjustments or servicing. Check for correct function after adjustments, repairs or service. Untrained operators and failure to follow instructions can cause injury or death.

W-2003-0903

SERVICE SCHEDULE ITEM Engine Coolant Engine Oil Hydraulic Fluid, Hoses and Tubelines, Reservoir Breather Cap Engine Air Filter and Air System Tracks Indicators and Lights Operator Canopy/Cab Seat Belt Safety Signs and Safety Treads Pivot Points * Cab Heater Air Filter Console Lockout * X-Change Swing Circle and Pinion Fuel Tank & Filter Battery Spark Arrestor Muffler Travel Motor Fuel Filters Inline Fuel Filter Accessory Drive Belt Drive Belt Radiator, Oil Cooler, *A/C Engine Oil and Filter Primary Hydraulic Filter and Reservoir Breather Case Drain Filter Fan Hydraulic Filter Alternator & Starter Engine Valves Hydraulic System Travel Motor Engine Coolant

SERVICE REQUIRED Check coolant level. Add premixed coolant as needed.

Check the engine oil level and add as needed.

Check the hydraulic fluid level and add as needed. Check for damage and leaks. Repair or replace as needed.

Check condition indicator and empty dust cup as needed. Check air system for leaks.

Check and adjust track tension as needed.

Check for correct operation of all indicators and lights.

Check condition. Check mounting hardware.

Check condition. Check mounting hardware.

Check for damaged signs (decals) and safety treads. Replace any signs or safety treads that are damaged or worn.

Grease all machinery pivot points.

Clean the filter as needed.

Check console lockout for proper operation.

Lubricate and inspect for damage or loose parts.

Grease two fittings.

Drain water and sediment from fuel tank and fuel filter.

Check battery, cables, connections and electrolyte level. Add distilled water as needed.

Clean the spark chamber.

Check the oil level in both motors.

Replace fuel filter.

Replace inline fuel filter.

Check condition of belt and adjust as needed.

Check and adjust as needed.

Clean debris from the radiator fins.

Replace oil and filter. Use CD or better grade oil and Bobcat filter.

Replace the primary hydraulic filter and reservoir breather.

Replace the case drain filter.

Replace the fan hydraulic filter.

Check the alternator and starter connections.

Check and adjust the engine valve clearance.

Replace the hydraulic fluid and filters. Clean the reservoir.

Replace the lubricant in both travel motors.

Drain and flush the cooling system. Replace the coolant.

HOURS 8-10

50

100

250 500

■ 1000

●

^ ^ ▼

^ ^ ^

^ Every 2 years

* If Equipped Check after the first 50 hours, then as scheduled. ▼ First oil and filter change must occur at 50 hours; then as scheduled. ^ Check after the first 100 hours, then as scheduled.

■ Or every 12 months. ●

10-50-1

430 Service Manual

AIR CLEANER

Replacing The Elements

See the Service Schedule for the correct service interval.

(See Chart on Page 10-50-1.)

Outer Filter Release the two fasteners (Item 2) [Figure 10-60-1].

Daily Check Remove and clean the dust cup (Item 3) [Figure 10-601].

Figure 10-60-1

Figure 10-60-2 1

2

1

3 P-42171

Check the condition indicator (Item 1) [Figure 10-60-1]. If the red ring shows in the condition indicator, the filter element needs to be replaced.

Replace the inner filter every third time the outer filter is replaced or as indicated.

P-42172

Pull the outer filter (Item 1) [Figure 10-60-2] from the air cleaner housing.

Check the housing for damage.

Clean the housing and the seal surface. DO NOT use compressed air.

Install a new filter.

10-60-1

430 Service Manual

Figure 10-60-4

AIR CLEANER (CONT’D) Replacing The Elements (Cont’d) Figure 10-60-3

1

3

1

2

P-42173

Remove the dust cup, outer filter and inner filter (Item 1) [Figure 10-60-4].

P-42171

Install the dust cup (Item 1) and engage the fasteners (Item 2) [Figure 10-60-3].

NOTE: Make sure all sealing surfaces are free of dirt and debris.

Install the new inner filter.

Check the air intake hose and the air cleaner housing for damage. Make sure all connections are tight.

Inner Filter

Install the outer filter and the dust cup.

Press the button on the condition indicator to remove the red ring.

Only replace the inner filter under the following conditions: •

Replace the inner filter every third time the outer filter is replaced.

•

After the outer filter has been replaced, press the button (Item 3) [Figure 10-60-3] on the top of the condition indicator and start the engine. Run at full RPM, then reduce engine speed and stop the engine.

If the red ring shows in the condition indicator, replace the inner filter.

10-60-2

430 Service Manual

Figure 10-61-3

HEATER AIR FILTER (WITH CAB OPTION ONLY) Removal And Installation The heater filter must be cleaned regularly. The filter is located at the left of the operator seat.

Figure 10-61-1

1

1

P-42168

2 Installation: Install the filter with the arrows that indicate air flow direction (Item 1) [Figure 10-61-3] pointing towards the heater/AC housing.

P-42166

Remove the screw (Item 1) and cover (Item 2) [Figure 10-61-1].

Figure 10-61-2

1

P-42167

Pull the filter (Item 1) [Figure 10-61-2] away and out of the heater/AC housing.

Use low air pressure to clean the filter. Replace the filter when very dirty.

10-61-1

430 Service Manual

Checking Coolant Level

ENGINE COOLING SYSTEM Check the cooling system every day to prevent overheating, loss of performance or engine damage.

WARNING

Cleaning The Cooling System

AVOID BURNS Do not remove radiator cap when the engine is hot.

You can be seriously burned.

Open the right side cover.

Figure 10-70-1

W-2070-1203

Open the right side cover.

1

Figure 10-70-3

1

P-42242

Remove the two nuts (Item 1) [Figure 10-70-1].

1

Figure 10-70-2

P-42181

Check the coolant level in the coolant recovery tank (Item 1) [Figure 10-70-3].

The coolant level must be between the MIN and MAX marks on the coolant recovery tank when the engine is cold.

1

NOTE: The cooling system is factory filled with propylene glycol (purple color). DO NOT mix propylene glycol with ethylene glycol.

P-42240

Pivot the oil cooler (Item 1) [Figure 10-70-2] away from the radiator.

Use air pressure or water pressure to clean the radiator and oil cooler. Be careful not to damage fins when cleaning.

10-70-1

430 Service Manual

ENGINE COOLING SYSTEM (CONT’D)

Removing And Replacing Coolant

Checking Coolant Level (Cont’d)

See the Service Schedule for correct service intervals.

(See Chart on Page 10-50-1.)

IMPORTANT

WARNING

AVOID ENGINE DAMAGE Always use the correct ratio of water to antifreeze.

Too much antifreeze reduces cooling system efficiency and may cause serious premature engine damage.

AVOID BURNS Do not remove radiator cap when the engine is hot.

You can be seriously burned.

W-2070-1203

Figure 10-70-4 Too little antifreeze reduces the additives which protect the internal engine components; reduces the boiling point and freeze protection of the system.

Always add a premixed solution. Adding full strength concentrated coolant can cause serious premature engine damage.

I-2124-0497

1

WARNING AVOID INJURY OR DEATH Wear safety glasses to prevent eye injury when any of the following conditions exist: • When fluids are under pressure.

• Flying debris or loose material is present.

• Engine is running.

• Tools are being used.

P-42182

Remove the two nuts (Item 1) [Figure 10-70-4].

Figure 10-70-5

W-2019-0907

2

1

P-42240

Pivot the oil cooler (Item 1) [Figure 10-70-5] away from the radiator.

When the engine is cool, loosen and remove the radiator cap (Item 2) [Figure 10-70-5].

10-70-2

430 Service Manual

NOTE: The cooling system is factory filled with propylene glycol (purple color). DO NOT mix propylene glycol with ethylene glycol.

ENGINE COOLING SYSTEM (CONT’D) Replacing The Coolant (Cont’d) Figure 10-70-6

Add premixed coolant; 47% water and 53% propylene glycol to the recovery tank if the coolant level is low.

One gallon and one pint of propylene glycol mixed with one gallon of water is the correct mixture of coolant to provide a -34°F (-37°C) freeze protection. (See IMPORTANT.) Use a refractometer to check the condition of propylene glycol in your cooling system.

Add premixed coolant until the level is correct.

1 Run the engine until it is at operating temperature. Stop the engine. Check the coolant level and add as needed.

Be sure the radiator cap is tight.

P-42241

Put a hose on the drain valve at the bottom of the radiator. Open the drain valve (Item 1) [Figure 10-70-6] and drain the coolant into a container.

Add coolant to the recovery tank as needed.

Close the right side cover.

After all the coolant is removed, close the drain valve.

Recycle or dispose of the used coolant in an environmentally safe manner.

Mix the coolant in a separate container. See chart for correct capacity. (See Chart on Page 10-50-1.)

10-70-3

430 Service Manual

FUEL SYSTEM

Biodiesel Blend Fuel

Fuel Specifications

Biodiesel blend fuel has unique qualities that should be considered before using in this machine:

Use only clean, high quality diesel fuel, Grade No. 2 or Grade No. 1.

The following is a suggested blending guideline which should prevent fuel gelling problems during freezing temperature Temp. F° (C°) Above +15° (-9°) Down to -20° (-29°) Below -20° (-29°)

No. 2

No. 1

100% 50% 0%

0% 50% 100%

•

Cold weather conditions can lead to plugged fuel system components and hard starting.

•

Biodiesel blend fuel is an excellent medium for microbial growth and contamination which can cause corrosion and plugging of fuel system components.

•

Use of biodiesel blend fuel may result in premature failure of fuel system components, such as plugged fuel filters and deteriorated fuel lines.

•

Shorter maintenance intervals may be required, such as cleaning the fuel system and replacing fuel filters and fuel lines.

•

Using biodiesel blended fuels containing more than five percent biodiesel can affect engine life and cause deterioration of hoses, tubelines, injectors, injector pump and seals.

At a minimum, Low Sulfur (500 ppm sulfur) Diesel Fuel must be used in this machine.

Apply the following guidelines if biodiesel blend fuel is used: The following fuels may also be used in this machine: •

Ultra Low Sulfur (15 ppm sulfur) Diesel Fuel.

•

Biodiesel Blend Fuel - Must contain no more than five percent biodiesel mixed with low sulfur or ultra low sulfur petroleum based diesel. This is commonly marketed as B5 blended diesel fuel.

WARNING AVOID INJURY OR DEATH Stop and cool the engine before adding fuel. NO SMOKING! Failure to obey warnings can cause an explosion or fire.

W-2063-0807

•

Ensure the fuel tank is as full as possible at all times to prevent moisture from collecting in the fuel tank.

•

Ensure that the fuel tank cap is securely tightened.

•

Biodiesel blend fuel can damage painted surfaces, remove all spilled fuel from painted surfaces immediately.

•

Drain all water from the fuel filter daily before operating the machine.

•

Do not exceed engine oil change interval. Extended oil change intervals can cause engine damage.

•

Before vehicle storage; drain the fuel tank, refill with 100% petroleum diesel fuel, add fuel stabilizer and run the engine for at least 30 minutes.

NOTE: Biodiesel blend fuel does not have long term stability and should not be stored for more than three months.

WARNING AVOID INJURY OR DEATH Always clean up spilled fuel or oil. Keep heat, flames, sparks or lighted tobacco away from fuel and oil. Failure to use care around combustibles can cause explosion or fire which can result in injury or death.

W-2103-0807

10-80-1

430 Service Manual

FUEL SYSTEM (CONT’D)

Open the right side cover.

Filling The Fuel Tank

Figure 10-80-1

WARNING 1

AVOID INJURY OR DEATH Stop and cool the engine before adding fuel. NO SMOKING! Failure to obey warnings can cause an explosion or fire.

W-2063-0807

WARNING

P-42179

AVOID INJURY OR DEATH Always clean up spilled fuel or oil. Keep heat, flames, sparks or lighted tobacco away from fuel and oil.

Failure to use care around combustibles can cause explosion or fire which can result in injury or death.

W-2103-0807

Remove the fuel fill cap (Item 1) [Figure 10-80-1].

Use a clean, approved safety container to add fuel. Add fuel only in an area that has a free movement of air and no flames or sparks. NO SMOKING! Install and tighten the fuel fill cap.

Clean up any spilled fuel.

See the Service Schedule for the service interval when to remove water from or replace the fuel filter. (See Chart on Page 10-50-1.)

NOTE: The fuel cap can be locked using the start key.

10-80-2

430 Service Manual

FUEL SYSTEM (CONT’D)

Replacing Element

Removing Water

See the Service Schedule for the service interval when to replace the fuel filter. (See Chart on Page 10-50-1.)

Open the tailgate.

Figure 10-80-3 See the Service Schedule for the service interval when to remove the water from the fuel filter. (See Chart on Page 10-50-1.)

2

Figure 10-80-2

1

3 P-42174

1

Remove the filter (Item 1) [Figure 10-80-3].

Clean the area around the filter housing.

P-42174

Put oil on the seal of the new filter.

Loosen the drain (Item 1) [Figure 10-80-2] at the bottom of the filter to drain water from the filter.

Install the fuel filter, and hand tighten.

10-80-3

430 Service Manual

FUEL SYSTEM (CONT’D)

Inline Fuel Filter

Draining The Fuel Tank

See the Service Schedule for the service interval when to replace the fuel filter. (See Chart on Page 10-50-1.)

See the Service Schedule for the correct service interval.

(See Chart on Page 10-50-1.)

Loosen the two bolts (Item 2) [Figure 10-80-4] and position the spin on filter to the side.

Figure 10-80-4 Figure 10-80-5 1

1

1 2

2 P-42174 P-47334

Remove the hose (Item 1) [Figure 10-80-4] from the fuel filter. Route the hose to the bottom of the engine compartment and out the tailgate.

Turn the start key to the ON position.

Remove the two clamps (Item 1) and remove the filter (Item 2) [Figure 10-80-5].

Drain the fuel into a container.

The excavator fuel system is a self bleed system and is purged of air every time the start key is turned to the run position.

Turn the start key to the OFF position.

Removing Air From The Fuel System

Reuse, recycle or dispose of fuel in an environmentally safe manner.

The excavator fuel system is a self bleed system and is purged of air every time the start key is turned to the run position.

The bleed screw (Item 2) [Figure 10-80-3 on Page 1080-3] is not used.

WARNING AVOID INJURY OR DEATH Diesel fuel or hydraulic fluid under pressure can penetrate skin or eyes, causing serious injury or death. Fluid leaks under pressure may not be visible.

Use a piece of cardboard or wood to find leaks. Do not use your bare hand. Wear safety goggles. If fluid enters skin or eyes, get immediate medical attention from a physician familiar with this injury.

W-2072-0807

10-80-4

430 Service Manual

ENGINE LUBRICATION SYSTEM

Engine Oil Chart

Checking And Adding Engine Oil

Figure 10-90-2

Check the engine oil after every 8 - 10 hours of operation and before starting the engine.

Figure 10-90-1

1

P-42178

Open the tailgate and remove the dipstick (Item 1) [Figure 10-90-1].

Keep the oil level between the marks on the dipstick.

B-16320

Use a good quality motor oil that meets the correct API Service Classification [Figure 10-90-2].

Install the dipstick and close the tailgate.

Removing And Replacing Oil And Filter See the Service Schedule for the service interval for replacing the engine oil and filter. (See Chart on Page 1050-1.)

Run the engine until it is at operating temperature. Stop the engine.

Open the tailgate.

10-90-1

430 Service Manual

Figure 10-90-5

ENGINE LUBRICATION SYSTEM (CONT’D) Removing And Replacing Oil And Filter (Cont’d) Figure 10-90-3

1

P-42177

1 Remove the fill cap (Item 1) [Figure 10-90-5].

P-42238

Put oil in the engine. (See Chart on Page SPEC-50-1.)

Remove the plug (Item 1) [Figure 10-90-3]. Drain the oil into a container.

Install the fill cap.

Start the engine and let it run for several minutes.

Recycle or dispose of used oil in an environmentally safe manner.

Stop the engine. Check for leaks at the oil filter. Check the oil level.

Figure 10-90-4 Add oil as needed if it is not at the top mark on the dipstick.

1

P-42174

Remove the oil filter (Item 1) [Figure 10-90-4] and clean the filter housing surface.

Use a genuine Bobcat replacement filter.

Put clean oil on the filter gasket. Install the filter and hand tighten.

Install and tighten the oil plug.

10-90-2

430 Service Manual

Figure 10-100-2

HYDRAULIC SYSTEM Checking And Adding Fluid Put the machine on a flat level surface.

1

Retract the arm and bucket cylinders, put the bucket on the ground and lower the blade. Stop the engine.

Open the tailgate.

Figure 10-100-1 2

P-42189

Check the condition of the fill strainer screen (Item 1) [Figure 10-100-2]. Clean or replace as necessary.

Be sure the screen is installed before adding fluid.

1

Add the correct fluid to the reservoir until it is visible in the sight gauge. (See Chart on Page SPEC-50-1.)

Check the cap and clean as necessary. Replace the cap if damaged.

P-42188

Check the hydraulic fluid level, it must be visible in the sight gauge (Item 1) [Figure 10-100-1].

Install the cap.

Close the tailgate.

Clean the surface around the reservoir (breather) cap and remove the cap from the reservoir (Item 2) [Figure 10-100-1].

10-100-1

430 Service Manual

HYDRAULIC SYSTEM (CONT’D) Hydraulic Fluid Chart Figure 10-100-3

P-64023A

Use the correct hydraulic fluid shown in chart [Figure 10100-3].

Add hydraulic fluid as needed to bring the level to the center of sight gauge (Item 1) [Figure 10-100-3].

Install the oil fill cap.

10-100-2

430 Service Manual

Figure 10-100-5

HYDRAULIC SYSTEM (CONT’D) Removing And Replacing The Hydraulic Fluid See the Service Schedule for the correct service interval.

(See Chart on Page 10-50-1.)

WARNING AVOID INJURY OR DEATH Diesel fuel or hydraulic fluid under pressure can penetrate skin or eyes, causing serious injury or death. Fluid leaks under pressure may not be visible.

Use a piece of cardboard or wood to find leaks. Do not use your bare hand. Wear safety goggles. If fluid enters skin or eyes, get immediate medical attention from a physician familiar with this injury.

W-2072-0807

Retract the arm and bucket cylinders, lower the bucket to the ground. Stop the engine.

1 P-42176

Remove the drain hose cap (Item 1) [Figure 10-100-5].

Drain the fluid into a container.

Recycle or dispose of the fluid in an environmentally safe manner.

Install the drain hose cap (Item 1) [Figure 10-100-5].

Open the tailgate.

Add the correct fluid to the reservoir until it is visible in the sight gauge. (See Chart on Page SPEC-50-1.)

Figure 10-100-4

Run the machine through the hydraulic functions. Stop the engine. Check the fluid level and add as needed.

1 P-42175

Pull the hydraulic reservoir drain hose (Item 1) [Figure 10-100-4] out of the excavator upperstructure.

10-100-3

430 Service Manual

HYDRAULIC SYSTEM (CONT’D)

Removing And Replacing The Case Drain Filter

Removing And Replacing The Hydraulic Filter

Open the tailgate.

See the Service Schedule for the correct service interval.

(See Chart on Page 10-50-1.)

Figure 10-100-7

Open the right side cover.

2 Figure 10-100-6

1 1

1 P-42174

Loosen the fuel filter mount bolts (Item 1) and reposition the fuel filter/fuel pump (Item 2) [Figure 10-100-7].

P-46198

Figure 10-100-8 Remove the hydraulic filter (Item 1) [Figure 10-100-6].

Clean the housing where the filter gasket makes contact.

2

Put clean hydraulic fluid on the gasket. Install the new filter and hand tighten only.

WARNING AVOID INJURY OR DEATH Always clean up spilled fuel or oil. Keep heat, flames, sparks or lighted tobacco away from fuel and oil.

Failure to use care around combustibles can cause explosion or fire which can result in injury or death.

W-2103-0807

1

1 3 P-42459

Remove the two hoses (Item 1). Remove the nut (Item 2) and remove the filter (Item 3) [Figure 10-100-8].

NOTE: Cap hoses immediately as oil will drain out quickly.

10-100-4

430 Service Manual

Figure 10-100-11

HYDRAULIC SYSTEM (CONT’D) Removing And Replacing The Fan Filter Open the right side cover.

Figure 10-100-9

1

1 1

P-42192

2 Diagnostic couplers (S/N AACG11001 & Above And AA8811001 & Above) (Item 1) [Figure 10-100-10] & [Figure 10-100-11] are located on the hydraulic circuitry.

3 P-46199

Figure 10-100-12 Loosen the tubeline (Item 1) and remove the hose from the bottom of the filter. Remove the nut (Item 2) and remove the filter (Item 3) [Figure 10-100-9].

1

Diagnostic Couplers Open the right side cover and tailgate.

Figure 10-100-10 1 1 P-55954

1

Diagnostic couplers (S/N AACF11001 & Above And AA8711001 & Above) (Item 1) [Figure 10-100-12] are located on the hydraulic circuitry.

1 P-46200

10-100-5

430 Service Manual

Figure 10-110-2

LUBRICATNG THE EXCAVATOR Lubrication Locations

5

7

Lubricate the excavator as specified in the Service Schedule for the best performance of the machine. (See Chart on Page 10-50-1.)

6 Always use a good quality lithium based multipurpose grease when lubricating the machine. Apply the lubricant until extra grease shows.

6

8

Lubricate the following locations on the excavator EVERY 8 - 10 HOURS: 5

Figure 10-110-1

P-42461

4 5. Boom Swing Pin (2) 2

2

6. Boom Swing Pivot (3) 7. Boom Pivot (1) 8. Boom Cylinder Base End (1) [Figure 10-110-2]

3 1

Figure 10-110-3

3 1

10

P-42460

Ref Description (# of Fittings) 1. Blade Cylinder Rod End (2) 2. Blade Cylinder Base End (2) 9

3. Blade Pivots (2) 4. Boom Swing Cylinder Rod End (1) [Figure 10-110-1]

P-42463

9. Boom Cylinder Rod End (1) 10. Arm Cylinder Base End (1) [Figure 10-110-3]

10-110-1

430 Service Manual

LUBRICATION OF THE HYDRAULIC EXCAVATOR (CONT’D)

Figure 10-110-6

Lubrication Locations (Cont’d) Figure 10-110-4 11

17 18 13

P-19385

12 17. X-Change Latch (1) P-42464

18. X-Change Pivot Pin (2) [Figure 10-110-6] Figure 10-110-7

11. Arm Cylinder Rod End (1) 12. Arm Pivot (1) 13. Bucket Cylinder Base End (1) [Figure 10-110-4] Figure 10-110-5

21

15

20 19

14 16 P-42153

19. Boom Swing Cylinder Base End (1) Lubricate the following locations on the hydraulic excavator EVERY 50 HOURS: P19384

20. Swing Circle (1) 14. Bucket Cylinder Rod End (1)

21. Swing Pinion (1) [Figure 10-110-7]

15. Bucket Link Pin (1) 16. Bucket Pivot (1) [Figure 10-110-5]

10-110-2

430 Service Manual

LUBRICATION OF THE HYDRAULIC EXCAVATOR (CONT’D) Figure 10-110-8

22

22

P-42465

22. Tailgate Hinge (2) [Figure 10-110-8]

10-110-3

430 Service Manual

TRAVEL MOTOR

Removing And Replacing Oil

Checking And Adding Oil

See the Service Schedule for the correct service interval.

(See Chart on Page 10-50-1.)

Figure 10-120-1 Park the excavator on a level surface with plugs (Item 1 & 2) [Figure 10-120-1] in the position shown. Remove both plugs and drain the lubricant into a container.

1

WARNING

2

AVOID INJURY OR DEATH Always clean up spilled fuel or oil. Keep heat, flames, sparks or lighted tobacco away from fuel and oil.

Failure to use care around combustibles can cause explosion or fire which can result in injury or death.

W-2103-0807

P-47337

Park the excavator on a level surface with the plugs (Item 1 & 2) [Figure 10-120-1] in the position as shown.

Remove the plug (Item 1) [Figure 10-120-1]. The lube level must be at the bottom edge of the hole.

Install the bottom plug (Item 2) [Figure 10-120-1]. Add lubricant through the top plug hole until the lube level is at the bottom edge of the hole. (See Specifications on Page SPEC-40-1.)

Install the plug (Item 1) [Figure 10-120-1].

Add lubricant through the hole if the lube level is low.

(See Specifications on Page SPEC-40-1.)

10-120-1

430 Service Manual

SPARK ARRESTOR MUFFLER

Figure 10-130-1

Cleaning Procedure See the Service Schedule for the correct service interval.

(See Chart on Page 10-50-1.)

1

Do not operate the excavator with a defective exhaust system.

IMPORTANT This excavator is factory equipped with a U.S.D.A. Forestry Service approved spark arrestor muffler. It is necessary to do maintenance on this spark arrestor muffler to keep it in working condition. The spark arrestor muffler must be serviced by dumping the spark chamber every 100 hours of operation.

If this machine is operated on flammable forest, brush or grass covered land, it must be equipped with a spark arrestor attached to the exhaust system and maintained in working order. Failure to do so will be in violation of California State Law, Section 4442 PRC. Make reference to local laws and regulations for spark arrestor requirements.

P-42193

Remove the plug (Item 1) [Figure 10-130-1] from the bottom of the muffler.

Start the engine and run for about 10 seconds while a second person, wearing safety glasses, holds a piece of wood over the outlet of the muffler. The carbon deposits will be forced out of the muffler plug hole (Item 1) [Figure 10-130-1].

Stop the engine. Install and tighten the plug.

Close the tailgate.

I-2061-0195

WARNING When the engine is running during service, the steering levers must be in neutral.

Failure to do so can cause injury or death.

W-2203-0595

Stop the engine. Open the tailgate.

10-130-1

430 Service Manual

ALTERNATOR BELT

Belt Adjustment

Belt Tension

Figure 10-140-2

Open the tailgate.

3 Figure 10-140-1 2

1

P-42467

Loosen the two bolts (Item 1). Loosen the nut (Item 2).

Tighten the bolt (Item 3) [Figure 10-140-2] until the belt tension is correct. Tighten the two bolts and nut.

P-42466

Using a belt tension gauge, measure the belt tension midway between the crankshaft pulley and alternator pulley [Figure 10-140-1].

Belt tension is as follows: New belt 107 - 114 ft.-lb. (145 - 155 N•m) Used belt 92 - 99 ft.-lb. (125 - 134 N•m)

10-140-1

430 Service Manual

Figure 10-150-1

SEAT BELT Inspection And Maintenance

WARNING Failure to properly inspect and maintain the seat belt can cause lack of operator restraint resulting in serious injury or death.

W-2466-0703

Check the seat belt daily for correct function.

Inspect the seat belt system thoroughly yearly or more often if the machine is exposed to severe environmental conditions or applications.

The seat belt system should be repaired or replaced if it shows cuts, fraying, extreme or unusual wear, significant discolorations due to ultraviolet (UV) rays from the sun, dusty/dirty conditions, abrasion to the seat belt webbing, or damage to the buckle, latch plate, retractor (if equipped), or hardware.

B-22283

The items below are referenced in [Figure 10-150-1].

1. Check the seat belt webbing. If the system is equipped with a retractor, pull the webbing completely out and inspect the full length of the webbing. look for cuts, wear, fraying, dirt and stiffness.

2. Check the buckle and latch for proper function. Make sure latch plate is not excessively worn, deformed or buckle is not damaged.

3. Check the retractor web storage device (if equipped) by extending the seat belt webbing to determine if it extends and retracts the webbing correctly.

4. Check webbing in areas exposed to ultraviolet (UV) rays from the sun or extreme dust or dirt. If the original color of the webbing in these areas is extremely faded and / or the webbing is packed with dirt, the webbing strength may have weakened.

See your Bobcat dealer for approved seat belt system replacement parts for your machine.

10-150-1

430 Service Manual

PIVOT PINS Inspection And Maintenance Figure 10-160-1

1

2

1

1

P-69504

The boom, arm and cylinders pivots (Item 1) have a large pin held in position with a snap ring (Item 2) [Figure 10160-1].

Check that the snap rings are securely inserted into the grooves on the pins and that the snap rings are not damage. See your Bobcat dealer for replacement parts.

10-160-1

430 Service Manual

EXCAVATOR STORAGE AND RETURN TO SERVICE

Return to Service

Storage

After the Bobcat Excavator has been in storage, it is necessary to follow a list of items to return the excavator to service.

Sometimes it may be necessary to store your Bobcat Excavator for an extend period of time. Below is a list of items to perform before storage.

•

Thoroughly clean the excavator including the engine compartment.

•

Lubricate the excavator.

•

Replace worn or damaged parts.

•

Drive the excavator onto planks in a dry protected shelter.

•

Lower the boom fully with the bucket flat on the ground.

•

Check the engine and hydraulic oil levels; check coolant level.

•

Install a fully charged battery.

•

Remove grease from exposed cylinder rods.

•

Check all belt tensions.

•

Be sure all shields and guards are in place.

•

Lubricate the excavator.

•

Remove cover from exhaust pipe opening.

•

Start the engine and let run for a few minutes while observing the instrument panels and systems for correct operation.

•

Put grease on any exposed cylinder rods.

•

Put fuel stabilizer in the fuel tank and run the engine a few minutes to circulate the stabilizer to the pump and fuel injectors.

•

Drive the excavator off of the planks.

•

Operate machine, check for correct function.

•

Drain and flush the cooling system. Refill with premixed coolant.

•

Stop the engine and check for leaks. Repair as needed.

•

Replace all fluids and filters (engine, hydraulic).

•

Replace all filters (i.e.: air cleaner, heater, etc.).

•

Put all controls in neutral position.

•

Remove the battery. Be sure the electrolyte level is correct then charge the battery. Store it in a cool dry place above freezing temperatures and charge it periodically during storage.

•

Cover the exhaust pipe opening.

•

Tag the machine to indicate that it is in storage condition.

10-170-1

430 Service Manual

Figure 10-180-3

STOPPING THE ENGINE AND LEAVING THE EXCAVATOR Procedure Figure 10-180-1

STOP

ON

START

6808261

Figure 10-180-4 P-42246A

Stop the machine on level ground. Lower the work equipment and the blade to the ground [Figure 10-1801].

Figure 10-180-2 1

P16616

Turn the key switch to STOP [Figure 10-180-3] or press the STOP Button (Item 1) [Figure 10-180-4].

1 Disconnect the seat belt. Remove the key from the switch to prevent operation of machine by unauthorized personnel. Raise the control console and exit the machine.

P-42156

Move the engine speed control (Item 1) [Figure 10-1802] to low idle.

Let the engine run at idle speed for five minutes before stopping the engine.

10-180-1

430 Service Manual

STOPPING THE ENGINE AND LEAVING THE EXCAVATOR (CONT’D) Emergency Exits The right side rear window and the front window provide exits.

Right Side Rear Window Figure 10-180-5

P-55693

Exit through the window [Figure 10-180-5].

Front Window Figure 10-180-6

P-66602

Raise the front window and exit through the window [Figure 10-180-6].

NOTE: If the excavator has a Special Applications Kit installed, the front window is NOT an emergency exit.

10-180-2

430 Service Manual

Figure10-190-3

MOTION ALARM SYSTEM (IF EQUIPPED) Description

2 This excavator may be equipped with a motion alarm system. The motion alarm will sound when the operator moves the travel control levers in the either the forward or reverse direction

1

Inspecting Figure 10-190-1

1

P-69800

Inspect the motion alarm electrical connections (Item 1) [Figure10-190-3], wire harness (Item 2) [Figure10-1903] and motion alarm switches (Item 1) [Figure10-190-4] for tightness and damage. Repair or replace any damaged components.

If the motion alarm switch requires adjustment, see information below.

P-49757

Adjusting Switch Position Stop the engine. Open the right side cover.

Figure10-190-2

Figure10-190-4 Switch Locations 1

1

3

P-49758

2 Inspect for damaged or missing motion alarm decal (Item 1) [Figure 10-190-1] (cab machine) or (Item 1) [Figure10-190-2] (canopy machine). Replace if required.

Sit in the operator’s seat. Turn excavator key to ON position but do not start the engine.

Move the travel control levers (one lever at a time) in the forward direction. The motion alarm must sound. Move the travel control levers (one lever at a time) in the reverse direction. The motion alarm must sound.

P-55752

The two travel control switches (Item 1) [Figure10-190-4] are located in the lower actuator housings on the control valve travel sections.

The switches (Item 1) [Figure10-190-4] are nonadjustable. They must be fully installed into the actuator housings and tightened. Tighten the switch to 31 ft.-lb.

(42 N•m).

Turn excavator key to OFF position.

Inspect the motion alarm system for proper function after switch replacement.

The motion alarm is mounted to the louver at the bottom rear of the excavator. (The louver must be removed to access the back-up alarm. See the Service Manual for the correct procedure.)

NOTE: Hoses removed [Figure10-190-4] for photo clarity.

10-190-1

430 Service Manual

HYDRAULIC SYSTEM ANGLE BLADE CYLINDER . . . . . . . . . . . . . . . . . . . . . . . . . .

Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Parts Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Removal And Installation . . . . . . . . . . . . . . . . . . . . . . . . . .

Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

20-26-1 20-26-7 20-26-5 20-26-4 20-26-2 20-26-1

HYDRAULIC SYSTEM

ANGLE BLADE VALVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-34-1 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-34-22 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-34-1 Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-34-9 Parts Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-34-8 Removal And Installation . . . . . . . . . . . . . . . . . . . . . . . . . . 20-34-5 Testing And Adjusting Port Relief Valves . . . . . . . . . . . . . . 20-34-1 Testing And Adjusting Sequence Valve . . . . . . . . . . . . . . . 20-34-3 ARM CYLINDER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Parts Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Removal And Installation . . . . . . . . . . . . . . . . . . . . . . . . . .

Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

20-21-1 20-21-8 20-21-6 20-21-5 20-21-3 20-21-1

ARM CYLINDER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Parts Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Removal And Installation . . . . . . . . . . . . . . . . . . . . . . . . . .

Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

20-21-1 20-21-8 20-21-6 20-21-5 20-21-3 20-21-1

BLADE CYLINDER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Parts Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Removal And Installation . . . . . . . . . . . . . . . . . . . . . . . . . .

Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

20-24-1 20-24-6 20-24-4 20-24-3 20-24-2 20-24-1

BOOM CYLINDER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-20-1 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-20-10 Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-20-8 Parts Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-20-7 Removal And Installation . . . . . . . . . . . . . . . . . . . . . . . . . . 20-20-4 Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-20-1 Continued On Next Page

20-01

430 Service Manual

HYDRAULIC SYSTEM (CONT’D) BOOM SWING CYLINDER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-22-1 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-22-7 Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-22-5 Parts Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-22-4 Removal And Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-22-2 Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-22-1 BOOM SWING LOCK VALVE . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-180-1 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-180-6 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-180-1 Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-180-3 Parts Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-180-2 Removal And Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-180-1 BUCKET CYLINDER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-23-1 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-23-8 Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-23-6 Parts Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-23-5 Removal And Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-23-3 Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-23-1 BUILD UP VALVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-160-1 CASE DRAIN FILTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-121-1 Removal And Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-121-1 CLAMP CYLINDER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-25-1 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-25-7 Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-25-4 Parts Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-25-3 Removal And Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-25-2 Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-25-1 CONTROL PATTERN SELECTOR VALVE . . . . . . . . . . . . . . . . . 20-100-1 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-100-5 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-100-1 Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-100-3 Parts Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-100-2 Removal And Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-100-1 Continued On Next Page

20-02

430 Service Manual

HYDRAULIC SYSTEM (CONT’D) COOLING FAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20-170-1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20-170-1 Disassembly And Assembly. . . . . . . . . . . . . . . . . . . . . . . . .20-170-5 Parts Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20-170-4 Removal And Installation . . . . . . . . . . . . . . . . . . . . . . . . . . .20-170-2 Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20-170-1 CROSSPORT RELIEF VALVES . . . . . . . . . . . . . . . . . . . . . . . . .20-32-1 Testing And Adjusting The Crossport Relief Valves. . . . . . . .20-32-1 DIRECT TO TANK VALVE (IF EQUIPPED) . . . . . . . . . . . . . . .20-150-1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20-150-1 Disassembly And Assembly. . . . . . . . . . . . . . . . . . . . . . . . .20-150-3 Parts Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20-150-2 Removal And Installation . . . . . . . . . . . . . . . . . . . . . . . . . . .20-150-1 EXTENDIBLE ARM CYLINDER . . . . . . . . . . . . . . . . . . . . . . . . .20-27-1 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20-27-6 Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20-27-4 Parts Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20-27-3 Removal And Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . .20-27-1 HOSES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-114-1 Hose Guide Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-114-1 Left Control Lever (Joystick) (S/N AACF11001 & Above AND AA8711001 & Above). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-114-2 Left Control Lever (Joystick) (S/N AACG11001 AND AA8811001 & Above) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-114-3 Manifold Assembly / Accumulator (S/N AACF11001 & Above And AA8711001 & Above). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-114-8 Manifold Assembly / Accumulator (S/N AACG11001 & Above And AA8811001 & Above). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-114-9 Right Control Lever (Joystick) (S/N AACF11001 And Above AA8711001 & Above). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-114-4 Right Control Lever (Joystick) (S/N AACG11001 & Above And AA8811001 & Above). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-114-5 Travel Control Valve (S/N AACF11001 & Above And AA8711001 & Above) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-114-6 Travel Control Valve (S/N AACG11001 & Above And AA8811001 & Above) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-114-7 Continued On Next Page

20-03

430 Service Manual

HYDRAULIC SYSTEM (CONT’D) HYDRAULIC CONTROL VALVE (S/N AACF11001 & ABOVE AND AA8711001 & ABOVE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-40-1 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20-40-62 Arm Valve Section Disassembly And Assembly . . . . . . . . . . . . . .20-40-42 Auxiliary Valve Section Disassembly And Assembly . . . . . . . . . . .20-40-32 Blade Valve Section Disassembly And Assembly . . . . . . . . . . . . .20-40-18 Boom Swing Valve Section Disassembly And Assembly. . . . . . . .20-40-52 Boom Valve Section Disassembly And Assembly . . . . . . . . . . . . .20-40-47 Bucket Valve Section Disassembly And Assembly . . . . . . . . . . . .20-40-37 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20-40-1 Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20-40-8 Inlet Section Disassembly And Assembly . . . . . . . . . . . . . . . . . . .20-40-57 Left Travel Valve Section Disassembly And Assembly . . . . . . . . .20-40-14 Parts Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20-40-7 Removal And Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20-40-1 Right Travel Valve Section Disassembly And Assembly . . . . . . . .20-40-10 Slew Valve Section Disassembly And Assembly . . . . . . . . . . . . . .20-40-27 HYDRAULIC CONTROL VALVE (S/N AACG11001 & ABOVE AND AA8811001 & ABOVE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-41-1 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20-41-50 Arm Valve Section Disassembly And Assembly . . . . . . . . . . . . . .20-41-30 Auxiliary Valve Section Disassembly And Assembly . . . . . . . . . . .20-41-20 Blade Valve Section Disassembly And Assembly . . . . . . . . . . . . . .20-41-6 Boom Swing Valve Section Disassembly And Assembly. . . . . . . .20-41-40 Boom Valve Section Disassembly And Assembly . . . . . . . . . . . . .20-41-35 Bucket Valve Section Disassembly And Assembly . . . . . . . . . . . .20-41-25 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20-41-1 Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20-41-5 Inlet Section Disassembly And Assembly . . . . . . . . . . . . . . . . . . .20-41-45 Parts Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20-41-4 Removal And Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20-41-1 Slew Valve Section Disassembly And Assembly . . . . . . . . . . . . . .20-41-15 HYDRAULIC FILTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-120-1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-120-1 Housing Removal And Installation . . . . . . . . . . . . . . . . . . . . . . . . . 20-120-1 Continued On Next Page

20-04

430 Service Manual

HYDRAULIC SYSTEM (CONT’D) HYDRAULIC PUMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-50-1 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-50-35 Coupler Removal And Installation . . . . . . . . . . . . . . . . . . . . . . 20-50-9 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-50-1 Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-50-13 Gear Pump Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-50-18 Gear Pump Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-50-15 Gear Pump Parts Identification . . . . . . . . . . . . . . . . . . . . . . . 20-50-11 Hydraulic Pump Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-50-10 Piston Pump Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-50-28 Piston Pump Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-50-21 Piston Pump Parts Identification . . . . . . . . . . . . . . . . . . . . . . 20-50-12 Removal And Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-50-8 Testing Auxiliary Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-50-7 Testing The Gear Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-50-5 Testing The Piston Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-50-3 Torque Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-50-2 HYDRAULIC RESERVOIR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-130-1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-130-1 Removal And Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-130-1 HYDRAULIC SYSTEM INFORMATION . . . . . . . . . . . . . . . . . . . . .

Glossary Of Hydraulic / Hydrostatic Symbols . . . . . . . . . . . . . .

Troubleshooting The Cylinder Circuit. . . . . . . . . . . . . . . . . . . . .

Troubleshooting The Hydraulic Circuit . . . . . . . . . . . . . . . . . . . .

Troubleshooting The Swing (Upperstructure Slew) Circuit . . . .

Troubleshooting The Travel Circuit . . . . . . . . . . . . . . . . . . . . . .

20-10-1 20-10-1 20-10-5 20-10-5 20-10-6 20-10-7

HYDRAULIC X-CHANGE VALVE . . . . . . . . . . . . . . . . . . . . . . . . . 20-190-1 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-190-13 Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-190-5 Parts Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-190-4 Removal And Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-190-1 Continued On Next Page

20-05

430 Service Manual

HYDRAULIC SYSTEM (CONT’D) LEFT CONTROL LEVER (JOYSTICK) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-111-1 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20-111-14 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20-111-1 Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20-111-9 Handle Removal And Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20-111-3 Joystick Assembly Removal And Installation . . . . . . . . . . . . . . . . . . . . . . .20-111-6 Parts Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20-111-8 Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20-111-1 MAIN RELIEF VALVES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-30-1 System Pressures At Gauge Port Specifications . . . . . . . . . . . . . . . . . . . . 20-30-1 Testing And Adjusting The Main Relief Valves. . . . . . . . . . . . . . . . . . . . . . 20-30-1 MANIFOLD ASSEMBLY/ACCUMULATOR (S/N AACG11001 & ABOVE AND AA8811001 & ABOVE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-60-1 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-60-18 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-60-1 Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-60-6 Parts Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-60-5 Removal And Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-60-3 Testing Pilot Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-60-2 MANIFOLD ASSEMBLY/ACCUMULATOR (S/N AACF11001 & ABOVE AND AA8711001 & ABOVE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-61-1

Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-61-15 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-61-1 Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-61-6 Parts Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-61-5 Removal And Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-61-3 Testing Pilot Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-61-2 OIL COOLER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-140-1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-140-1 Removal And Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-140-1 PORT RELIEF VALVES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-31-1 Testing And Adjusting Port Relief Valve Pressure . . . . . . . . . . . . . . . . . . . 20-31-1 PRESSURE REDUCING VALVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-33-1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-33-1 Continued On Next Page

20-06

430 Service Manual

HYDRAULIC SYSTEM (CONT’D) RIGHT CONTROL LEVER (JOYSTICK). . . . . . . . . . . . . . . . . . . . . . . 20-110-1 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-110-15 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-110-1 Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-110-10 Handle Removal And Installation. . . . . . . . . . . . . . . . . . . . . . . . . . 20-110-2 Joystick Assembly Removal And Installation. . . . . . . . . . . . . . . . . 20-110-6 Parts Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-110-9 Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-110-1 SWING MOTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-90-1 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-90-9 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-90-1 Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-90-4 Parts Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-90-3 Removal And Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-90-1 SWING MOTOR DRIVE CARRIER. . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-91-1 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-91-5 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-91-1 Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-91-3 Parts Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-91-2 Removal And Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-91-1 SWIVEL JOINT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-80-1 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-80-7 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-80-4 Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-80-4 Parts Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-80-3 Removal And Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-80-1 TRAVEL CONTROL VALVE (S/N AACG11001 & ABOVE AND AA8811001 & ABOVE). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-112-1 Disassembly And Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-112-3 Parts Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-112-2 Removal and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-112-1 TRAVEL MOTOR (S/N AACG11001 & ABOVE AND AA8811001) . . . . 20-70-1 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-70-18 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-70-1 Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-70-4 Parts Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-70-3 Removal And Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-70-1 Continued On Next Page

20-07

430 Service Manual

HYDRAULIC SYSTEM (CONT’D) TRAVEL MOTOR (S/N AACF11001 & ABOVE AND AA8711001 & ABOVE). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-71-1 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-71-13 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-71-1 Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-71-3 Parts Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-71-2 Removal And Installation . . . . . . . . . . . . . . . . . . . . . . . . . . 20-71-1 TRAVEL CONTROL VALVE (S/N AACF11001 & ABOVE AND AA8711001 & ABOVE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-113-1 Disassembly And Assembly. . . . . . . . . . . . . . . . . . . . . . . 20-113-3 Parts Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-113-2 Removal and Installation . . . . . . . . . . . . . . . . . . . . . . . . . 20-113-1

20-08

430 Service Manual

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