New Holland L170 Skid Steer Service Repair Manual by u1yiuef6

L160, L170 REPAIR MANUAL COMPLETE CONTENTS

The following pages are the collation of the contents pages from each section and chapter of the L160, L170 Repair Manual. Complete Repair Manual part # 87634733.

The sections used through out all New Holland product Repair Manuals may not be used for each product. Each Repair Manual will be made up of one or several books.

Each book will be labeled as to which sections are in the overall Repair Manual and the sections that each book contains.

The sections listed above are the sections utilized for the L160, L170 Skid Steer.

SECTION 00 - GENERAL INFORMATION......................................................................................................3 SECTION 10 - ENGINE....................................................................................................................................4 SECTION 27 - REAR DRIVE AXLE (GEARBOXES)....................................................................................... 6 SECTION 29 - HYDROSTATIC TRANSMISSION...........................................................................................6 SECTION 33 - BRAKES AND CONTROLS.. ......8 SECTION 35 - HYDRAULIC SYSTEM.............................................................................................................9 SECTION 37 - TOWING HOOKS AND BALLASTING..................................................................................11 SECTION 39 - FRAMES.................................................................................................................................11 SECTION 44 - AXLES AND WHEELS...........................................................................................................12 SECTION 50 - CAB CLIMATE CONTROL....................................................................................................12 SECTION 55 - ELECTRICAL SYSTEM..... ........13 SECTION 82 - FRONT LOADER (BOOM AND MOUNTING PLATE)..........................................................15 SECTION 88 - ACCESSORIES......................................................................................................................16 SECTION 90 - PLATFORMS, CAB, BODYWORK, AND DECALS..............................................................17

634735

SECTION 10 – ENGINE

BOOK 1 - 87634735

Chapter 1 – L160 - N844, L170 - N844T

CONTENTS SectionDescription Page 10000GeneralEngineInformation10-3 ................................................... GeneralDescription10-3 EngineComponentDescriptions10-3 EngineModelandSerialNumberLocation10-5 ...................................... TurbochargerLubrication10-5 SafetyPrecautions10-6 GeneralEngineSpecifications10-7 Troubleshooting10-11 L170-ExcessiveOilConsumption10-15 Specifications-ServiceStandards10-17 TorqueSpecifications10-21 EngineComponentsElectricalDiagram10-22 1000110EngineRemoval10-23 1000153EngineDisassemblySequence10-28 EngineComponentMaintenance10-36 ............................................ 1010155ValveSeat10-39 1010156CylinderBlock10-41 1010522PistonandPistonRings10-42 .................................................... ConnectingRod10-45 1010310BearingHolder10-47 FrontCrankshaftBearing(Bushing)10-48 .......................................... 1010330Crankshaft10-50 1010376FlywheelandRingGear10-52 1010640CamshaftAssembly10-52 1010666CamshaftGearandBearingAssembly10-53 TimingGear10-54 1030441OilPump10-54 1030410OilFilter10-55 1040228WaterPumpAssemblyandThermostatHousing10-55 ............................... 1040230Thermostat10-55 1023024Governor10-57 GovernorOperation10-59 ........................................................ 4

1030438EngineReassemblySequence10-61 .............................................. CrankshaftandBearingHolderAssembly10-62 RearOilSeal10-63 Backplate/FlywheelHousing10-63 ................................................ Flywheel10-63 PistonandConnectingRod10-64 OilIntakeandOilStrainer10-64 OilSump10-64 DipstickandTube10-64 FrontPlate10-64 IdlerGearandOilPumpAssembly10-66 TimingGearCaseInstallation10-66 ............................................... CrankshaftPulley10-66 InjectionPumpInstallation10-66 AdjustingtheFuelInjectionTiming10-67 ........................................... SpillTimingProcedure10-68 2910050ReinstallationofEngineintoSkidSteerFrame10-75 HowtoOperatetheEngineAfterOverhaul10-77 .................................... CoolingSystem10-78 CoolingSystemOperation10-78 WaterPumpAssemblyandThermostatHousing10-79 Radiator10-80 FuelSystem10-82 FuelSpecifications10-82 DieselFuel10-82 DieselFuelStorage10-82 FuelSystemComponents10-83 FuelGuage10-84 ColdStartAid10-85 ............................................................. FuelFilterSystem10-85 PrimingtheFuelSystem10-86 FuelSystemTesting10-87 ........................................................ FuelSystemComponents10-90 1023608FuelInjectionTiming10-96 Turbocharger-L170N844TEngine10-101 ........................................ 1025030TurbochargerRemoval10-103 MiscellaneousEngineElectrical10-116 1022310Shut-offSolenoid10-117 SpecialTools10-119 LaborGuide10-120 5

SECTION 27 – REAR DRIVE AXLE (GEARBOXES)

BOOK 2 - 87634738

Chapter 1 – Gearboxes

SECTION 29 -

HYDROSTATIC TRANSMISSION

BOOK 2 - 87634738

Chapter 1 - Neutralizer, Pumps, Motors

HydrostaticChargeSystemPressureTest29-14

HydrostaticPumpCaseDrainTest29-15 ...........................................

HydrostaticPumpHighPressureTest29-18

27000GeneralInformation27-2 Specifications27-4

Testing27-7 27126Gearboxes27-8 2712640GearboxRemovalandInspection27-8 2712648GearboxDisassembly27-12

CONTENTS SectionDescription Page

Troubleshooting27-5

GearboxPartsInspection27-13 ................................................... GearboxResassembly27-14 2712640GearboxResinstallation27-16 LaborGuide27-19 ...............................................................

29100GeneralInformation29-3

Specifications29-5

CONTENTS SectionDescription Page

Operation29-3

2910001Troubleshooting29-6 HydrostaticDriveSystemTesting29-8 .............................................. HydrostaticSystemOilFlow29-11

29 100 15 Right Control Handle With Auxiliary or Bucket Control Disassembly..................................... 29-107 Right Control Handle With Auxiliary or Bucket Control Inspection................ 29-109 Right Control Handle With Auxiliary or Bucket Control Reassembly................ ..........29-110 Right Control Handle With Auxiliary or Bucket Control Reinstallation.....................................29-113 29 130 06 Drive Control Adjustment Procedure........... .29-115 29 130 06 Neutral Adjustment..................................................................................................................29-116 Labor Guide.................................................................................................................... .29-118 Machines Equipped With ISO Pattern Pilot Controls...............................................................29-121 Pilot Control Travel System Overview................................................................................ 29-121 Specifications................................................................................................................. 29-142 Troubleshooting................................................................................................................ 29-143 Check 1 - Checking the DA Pressure................................................................................ .29-144 Check 2 - Checking Charge Pressure/Flow......................................................................... 29-146 Check 3 - Checking Circuit Relief Valve Pressure............................................................... 29-147 Pump Adjustments...................................................................................................................29-148 Pump Removal................................................................................................................. 29-149 Pump Installation.......................................................................................................................29-153 Pump Disassembly........................................................................................................... 29-156 Pump Assembly........................................................................................................................29-173 Pilot Control Travel Lever Removal..................................................................................... 29-189 Pilot Control Travel Lever Installation.................................................................................. 29-193 Illustration-HydrostaticSystem(MachinesEquippedWithPilotControls)..............................29-195 ProceduretoBleedAirFromthe Pilot Control HydraulicSystem.............................................29-196 SECTION 33 - BRAKES AND CONTROLS BOOK 2 - 87634738 Chapter 1 - Parking Brake Contents Section Description Page 33 000 General Information..................................................................................................... 33-2 Specifications................................................................................................................. 33-4 Troubleshooting............................................................................................................................33-5 Testing........................................................................................................................ 33-7 33 110 Parking Brake........................................................................................................... 33-8 Parking Brake Removal and Installation................................................................................. 33-9 Labor Guide.................................................................................................................... 33-22 8

SECTION 35 - HYDRAULIC SYSTEM

BOOK -3 - 87634740

Chapter 1 - Valves, Gear Pump, Cylinders, and Pedal Controls

Contents SectionDescription Page 35 000General Information ...............35-3 Hydraulic System Compatibility............................................................................................................................35-4 Boom Cylinder Pivot Pins ......35-6 Boom Cylinder Pivot Pin Location and Machine Usage .......................................................................................35-6 Control Valve Power Beyond ................................................................................................................................35-7 Specifications ........................35-8 Troubleshooting ...................35-12 Auxiliary Boom Hydraulics Troubleshooting.......................................................................................................35-16 Hydraulic System Testing ....35-18 Hydraulic System Oil Flow ...35-24 Control Valve - Bucket Spool Shifted .................................................................................................................35-25 Control Valve - Boom Spool Shifted ...................................................................................................................35-26 Control Valve - Auxiliary Spool Shifted ...............................................................................................................35-27 35 710 02 Main System Pressure Tests ..............................................................................................................................35-28 Checking Main System Pressure at Boom Cylinders.........................................................................................35-30 Checking Main System Pressure at Bucket Cylinders.......................................................................................35-31 Checking Main System Pressure at Auxiliary Boom Hydraulic Quick Couplers.................................................35-32 Boom Circuit Relief Valve Test ...........................................................................................................................35-33 Gear Pump Flow Efficiency Test ........................................................................................................................35-35 Boom and Bucket Spool Lock Solenoid Test .....................................................................................................35-39 Hydraulic, Hydrostatic System Air Ingress Test .................................................................................................35-41 Control Valve Specifications 35-43 35 724 50 Control Valve Removal.......................................................................................................................................35-44 Control Valve Disassembly and Inspection........................................................................................................35-45 Control Valve Parts Inspection...........................................................................................................................35-49 Control Valve Reassembly ..35-50 Control Valve Reinstallation 35-53 Hydraulic Pump Specifications...........................................................................................................................35-54 35 710 10 Hydraulic Pump Removal ....35-55 35 710 20 Hydraulic Pump Removal/Disassembly (Without High Flow) .............................................................................35-56 High Flow Pump Parts Inspection......................................................................................................................35-58 Hydraulic Pump Parts Inspection.......................................................................................................................35-59 Hydraulic Pump Reassembly/Installation (Without High Flow) ...........................................................................35-61 Hydraulic Pump and High Flow Pump Reassembly/Installation.........................................................................35-64 New Hydraulic Pump Installation (Without High Flow) .......................................................................................35-70 New Hydraulic Pump/High Flow Pump Installation............................................................................................35-72 Gear Pump Start-up Procedure..........................................................................................................................35-78 Cylinders, Boom and Bucket ..............................................................................................................................35-79 35 710 10 Boom Cylinder Removal.....................................................................................................................................35-81 35 730 18 Boom Cylinder Disassembly 35-83 Boom Cylinder Parts Inspection.........................................................................................................................35-84 Boom Cylinder Reassembly 35-85 Boom Cylinder Reinstallation.............................................................................................................................35-87 9

35 730 10 Bucket Cylinder Removal ....35-87 35 730 13 Bucket Cylinder Disassembly.............................................................................................................................35-88 Bucket Cylinder Parts Inspection........................................................................................................................35-89 Bucket Cylinder Reassembly..............................................................................................................................35-90 Bucket Cylinder Reinstallation............................................................................................................................35-92 Pedal Controls ........35-93 35 724 16 Pedal Removal (With Boom and Bucket Pedal Controls)...................................................................................35-93 Pedal Inspection (With Boom and Bucket Pedal Controls ..................................................................................35-93 Pedal Reinstallation (With Boom and Bucket Pedal Controls............................................................................35-95 35 724 16 Pedal Removal (With Boom and Bucket Hand Controls....................................................................................35-98 Pedal Inspection (With Boom and Bucket Hand Controls ..................................................................................35-99 Pedal Reinstallation (With Boom and Bucket Hand Controls ...........................................................................35-100 35 300 Hydraulic Cooling, Filter, Reservoir System .....................................................................................................35-103 Filter System .....................................................................................................................................................35-104 Filter Removal ...................35-104 35 705 05 Base Removal ...................35-104 Reassembly .........35-105 Oil Cooler ............35-105 35 300 10 Oil Cooler Removal ...........35-105 Oil Cooler Reassembly ......35-106 35 300 Oil Reservoir .........35-106 35 300 10 Oil Reservoir Removal ......................................................................................................................................35-107 Oil Reservoir Reinstallation..............................................................................................................................35-108 Adapting Attachments .......35-109 Labor Guide .........35-110 Machines Equipped With Pilot Controls Specifications .........35-111 Loader Function Troubleshooting.....................................................................................................................35-112 Pilot Pressure Test ...........................................................................................................................................35-113 Illustration - Loader Control ..............................................................................................................................35-114 Right Control Handle - Removal.......................................................................................................................35-115 Right Control Handle - Installation....................................................................................................................35-118 Hydraulic Schematic - Frame 3 - (Mechanical Control Machines)...................................................................35-120 Hydraulic Schematic - Frame 4- (Mechanical Control Machines)....................................................................35-121 Hydraulic Schematic - Frame 5- (Pilot Control Machines)................................................................................35-122 Hydraulic Schematic - Frame 6- (Pilot Control Machines)................................................................................35-123 Hydraulic Schematic - Frame 7- (Pilot Control Machines)................................................................................35-124 HydraulicSchematic-Frame8-(PilotControlMachines)...................................................................35-125 Hydraulic Schematic - Frame 9- (Pilot Control Machines)................................................................................35-126 10

634740 634740

13 s s s s s s s s s s s s s s s 34740

SECTION 55 - ELECTRICAL SYSTEM

Chapter 1 - Instrument Cluster, Circuits, Alternator, and Starter Book 4 - 87634741

Contents Description Section Page 55 000 General Electrical Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55- 4 Definition of Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-5 Adapting Attachments Requiring 12V Electrical Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-7 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-8 Wire Identification and Circuit Diagram Legend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-12 Electrical Diagram - Starting System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-13 Electrical Diagram - Power Distribution. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-14 Electrical Diagram -Safety Interlock and Fuel Supply System . . . . . . . . . . . . . . . . . . . . . 55-15 Electrical Diagram - Instrument Cluster Monitoring System . . . . . . . . . . . . . . . . . . . . . . . 55-16 Electrical Diagram - Standard Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-17 Electrical Diagram - Loader Arm Auxiliary Electrical Control Box (Optional). . . . . . . . . . . 55-18 Electrical Diagram - Loader Arm Auxiliary Electric Power Controls (Optional) . . . . . . . . . 55-19 Electrical Diagram - Flasher and Turn Signals North America Electrical . . . . . . . . . . . . . 55-20 Electrical Diagram - Main Electrical European On-Road Regulations. . . . . . . . . . . . . . . . 55-21 Electrical Diagram - Boom/Rear Electrical European On-Road Regulations . . . . . . . . . . 55-22 Electrical Diagram - Right-Hand Handle (Option) Electrical Multifunction Adaptation. . . . 55-23 Electrical Diagram - Left-Hand Handle (Options) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-24 Electrical Diagram - Right-Hand Handle (Options) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-25 Electrical Diagram - Glow Plugs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-26 Electrical Diagram - Rotating Beacon (Optional). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-27 Electrical Diagram - Two Speed (Optional). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-28 Electrical Diagram - Horn (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-29 Electrical Diagram - Accessory Outlet (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-30 Electrical Diagram - Back-up Alarm (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-31 Electrical Diagram - Wiper/Washer (Optional). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-32 Electrical Diagram - Auxiliary Hydraulics (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-33 Electrical Diagram - High Flow (Optional). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-34 Electrical Diagram - Hydraulic Coupler (Optional). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-35 Electrical Diagram - Heating and Air Conditioning (Optional) . . . . . . . . . . . . . . . . . . . . . . 55-36 Electrical Diagram - Pilot Hydraulic Controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-37 Electrical Diagram - Ground Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-38 Electrical Diagram - Ground Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-39 Wire Identification and Circuit Diagram Legend (Cab Upgrade Machines). . . . . . . . . . . . 55-40 Electrical Diagram - Starting System (Cab Upgrade Machines) . . . . . . . . . . . . . . . . . . . . 55-41 Electrical Diagram - Power Distribution (Cab Upgrade Machines) . . . . . . . . . . . . . . . . . . 55-42 Electrical Diagram -Safety Interlock and Fuel Supply System (Cab Upgrade Machines). 55-43 Electrical Diagram - Instrument Cluster Monitoring System (Cab Upgrade Machines). . . 55-44 Electrical Diagram - Standard Lamps (Cab Upgrade Machines). . . . . . . . . . . . . . . . . . . . 55-45 Electrical Diagram - Loader Arm Auxiliary Electrical Control Box (Optional) (Cab Upgrade Machines) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-46 Electrical Diagram - Loader Arm Auxiliary Electric Power Controls (Optional) (Cab Upgrade Machines) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-47 14

Electrical Diagram - Flasher and Turn Signals North America Electrical (Cab Upgrade Machines) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-48 Electrical Diagram - Main Electrical European On-Road Regulations (Cab Upgrade Machines) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-49 Electrical Diagram - Boom/Rear Electrical European On-Road Regulations (Cab Upgrade Machines) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-50 Electrical Diagram - Work Lamps (Cab Upgrade Machines). . . . . . . . . . . . . . . . . . . . . . . 55-51 Electrical Diagram - Control Lever Interface (Cab Upgrade Machines) . . . . . . . . . . . . . . 55-52 Electrical Diagram - Left-Hand Handle (Options) (Cab Upgrade Machines). . . . . . . . . . . 55-53 Electrical Diagram - Right-Hand Handle (Options) (Cab Upgrade Machines). . . . . . . . . . 55-54 Electrical Diagram - Grid Heater System (Cab Upgrade Machines). . . . . . . . . . . . . . . . . 55-55 Electrical Diagram - Rotating Beacon (Optional) (Cab Upgrade Machines) . . . . . . . . . . . 55-56 Electrical Diagram - Two Speed (Optional) (Cab Upgrade Machines) . . . . . . . . . . . . . . . 55-57 Electrical Diagram - Horn (Optional) (Cab Upgrade Machines) . . . . . . . . . . . . . . . . . . . . 55-58 Electrical Diagram - Accessory Outlet (Optional) (Cab Upgrade Machines). . . . . . . . . . . 55-59 Electrical Diagram - Back-up Alarm (Optional) (Cab Upgrade Machines). . . . . . . . . . . . . 55-60 Electrical Diagram - Wiper/Washer/Door Switch (Optional) (Cab Upgrade Machines). . . 55-61 Electrical Diagram - Auxiliary Hydraulics (Optional) (Cab Upgrade Machines). . . . . . . . . 55-62 Electrical Diagram - High Flow (Optional) (Cab Upgrade Machines) . . . . . . . . . . . . . . . . 55-63 Electrical Diagram - Hydraulic Mount Plate (Optional) (Cab Upgrade Machines). . . . . . . 55-64 Electrical Diagram - Heating and Air Conditioning (Optional) (Cab Upgrade Machines) . 55-65 Electrical Diagram - Pilot Hydraulic Controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-66 Electrical Diagram - Ground Connections (Cab Upgrade Machines) . . . . . . . . . . . . . . . . 55-67 Electronic Instrument Cluster (EIC) Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-68 Electronic Instrument Cluster (EIC) Panel (Cab Upgrade Machines) . . . . . . . . . . . . . . . . 55-69 Electronic Instrument Cluster Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-70 Electronic Instrument Cluster Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-73 Advanced Instrument Cluster (AIC) Panel (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-77 Advanced Instrument Cluster (AIC) Panel (Optional) (Cab Upgrade Machines). . . . . . . . 55-78 Advanced Instrument Cluster Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-79 Advanced Instrument Cluster Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-86 55 100 Removal, Installation and Wiring of Electrical Components . . . . . . . . . . . . . . . . . . . . . . . 55-90 55 301 40 Battery Removal and Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-91 Cab Fuse Block and Panel Removal and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-92 55 201 15 Seat Switch Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-93 Seat Switch Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-94 55 201 14 Seat Belt Buckle and Switch Assembly Removal and Installation . . . . . . . . . . . . . . . . . . . 55-94 55 404 20 Road Light and Work Light Switch Removal and Installation. . . . 55-95 Engine Fuse and Relay Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-96 55 100 34 Start Interlock Relay Removal and Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-97 Engine Fuse Block Removal and Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-98 55 100 34 Preheat Relay Removal and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-99 55 201 76 Preheat Glow Plug Removal and Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-100 Fuel System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-101 Electric Fuel Pump. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-102 10 210 21 Electric Fuel Pump Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-104 5

55 10 223 Fuel Shutoff Solenoid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-104 Fuel Shutoff Solenoid Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-104 10 223 10 Replacement of Fuel Shutoff Solenoid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-105 55 414 14 Air Filter Restriction Indicator Switch Removal and Installation. . . . . . . . . . . . . . . . . . . . 55-106 55 414 10 Engine Coolant Temperature Sender Removal and Installation . . . . . . . . . . . . . . . . . . . 55-106 55 414 12 Engine Oil Pressure Switch Removal and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-107 55 414 28 Hydrostatic Charge Pressure Switch Removal and Installation. . . . . . . . . . . . . . . . . . . . 55-107 55 414 24 Hydraulic Oil Filter Restriction Switch Removal and Installation . . . . . . . . . . . . . . . . . . . 55-108 55 414 20 Hydraulic Oil Temperature Sender Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-108 Hydraulic Oil Temperature Sender Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-109 35 724 90 Boom/Bucket Control Valve Spool Lock Solenoid Removal and Installation. . . . . . . . . . 55-110 55 404 Road/Work Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-111 55 301 Alternator (55 Amp Version). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-114 Alternator Service Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-116 Alternator - System Testing and Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-117 Initial Tests. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-120 55 301 10 Alternator Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-125 55 301 12 Alternator Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-126 Alternator Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-132 55 201 Starter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-133 Starter Motor Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-134 55 201 50 Starter Motor Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-135 Starter Motor Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-140 Starter Motor Inspection and Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-144 Starter Motor Reassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-150 Starter Motor Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-153 Miscellaneous Engine Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-154 Glow Plugs and Glow Plug Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-154 Oil Pressure Switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-155 Fuel Shutoff Solenoid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-155 Labor Guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55-156 6

SECTION 82 – FRONT LOADER (BOOM AND MOUNTING PLATE)

BOOK 4 - 87634741

Chapter 1 – Buckets

AttachmentMountingPlatePartsInspection82-32

CheckingProcedureforBucketsandAttachments82-36

CheckingProcedure82-38

CheckingtheLoaderFaceplate82-39

CONTENTS SectionDescription Page 82100GeneralInformation82-2 Buckets82-2 8210077BoomLockPinsandLinkage82-3 Boom82-3 8210070AttachmentMountingPlate82-4 BoomandCylinderPivotPins82-4 BoomandCylinderPivotPinLocationandMachineUsage82-4 BoomandCylinderPivotPinsSize82-5 ............................................. 8210030PalletFork82-6 8210020UtilityFork82-7 8210012BucketCuttingEdge(Replacement)82-8 ............................................ 82100BucketLatchPlateInstallationProcedure82-9 82100DirtToothKitInstallation82-11 BucketToothSpacing82-13 ...................................................... BoomLockPin/Linkage82-15 8210077BoomLockPin/LinkageRemoval82-15 BoomLockPin/LinkageReinstallation82-16 ........................................ Boom,UpperandLowerLink82-18 Boom,UpperandLowerLinkRemoval82-18 8210070FrontBoomMountingPlatePivotHubReplacement82-24 ............................. Boom,UpperandLowerLinkReinstallation82-25

AttachmentMountingPlate82-29 8210070AttachmentMountingPlateRemoval82-29

Repair/RebuildMountingPlate82-30 8210074LatchLeverandPinRemoval/Repair82-30

LaborGuide82-41 ............................................................... 17

SECTION 88 – ACCESSORIES

BOOK 4 - 87634741

Chapter 1 – Dealer Installed Options

CONTENTS SectionDescription Page 88100GeneralInformation88-2 AdaptingAttachmentsRequiring12VElectricalPower88-2 HydraulicSystemCompatibility88-5 90000ArmPadsForCabSidePanels88-7 90000ArmrestsforDeluxeSeat88-7 90000ForearmRests88-8 55000Back-upAlarm88-9 10300BlockHeater(Engine)88-10 ...................................................... 55000ElectricPowerSupply(12Volt,15Amp)88-11 10254Exhaust(Engine)88-12 10254AspiratorPrecleanerMuffler88-12 ................................................. 35000HighFlowHydraulics88-14 HighFlowHydraulicsTroubleshooting88-16 HighFlowHydraulicsComponentReplacement88-18 ............................... 55000Horn88-25 90000ShoulderBelt(Seat)88-26 88000Slow-movingVehicle(SMV)SignKit88-27 ......................................... 55000WarningLight(RotaryBeacon)88-28 55000WarningLights(Four-wayFlashers/TurnSignal/Horn)88-31 LaborGuide88-35 ............................................................... 18

SECTION 90 – PLATFORM, CAB, BODYWORK, AND DECALS

BOOK 4 - 87634741

Chapter 1 – Cab and Seat

CONTENTS SectionDescription Page GeneralInformation90-2 SeatandSeatPanSupport90-2 90152CabInnerShell90-3 9012010SeatRemoval90-3 9012012SeatPanSupportRemoval90-3 Seat,SwitchandPanReinstallation90-5 CabInnerShell90-7 9015234CabInnerShellRemoval90-7 ..................................................... 90152CabInnerShellReinstallation90-14 90108SafetyDecals90-22 LaborGuide90-26 ............................................................... 19

INTRODUCTION

Thisservicemanualprovidesthetechnical informationneededtoproperlyserviceandmaintain theModelsL160andL170skidsteers.Useitin conjunctionwiththeoperator’smanualwhichis suppliedwiththeskidsteer.Keepbothmanuals availableforreadyreference.

TheL160andL170havemanysimilaritieswiththe majordifferencesbeingenginehorsepowerand liftingcapacity.

WheneverworkingonNewHollandequipment,left andrightsidesofthemachinearedeterminedby standingbehindtheunit,lookinginthedirectionof travel.

Theeasiestandleasttime-consumingremoval, disassembly,andreassemblyproceduresare detailedinthemanual.Modifyingtheseprocedures isnotrecommended.

NewHollandskidsteersaredesignedwithemphasis onsafetyforoperatorprotection.However,careless andnegligentoperationcanstillresultinserious injurytopersonsordamagetoproperty.Besureto readandfollowallsafetyinstructionsinthismanual.

YourNewHollanddealerisinterestedinyour obtainingthemostfromyourinvestmentandwillbe gladtoansweranyquestionsyoumayhaveabout yourskidsteer.Whenmajorserviceisrequired,your dealer’sstaffoftrainedservicetechniciansisready toserveyou.

Wheninneedofparts,alwaysordergenuineNew HollandservicepartsfromyourNewHollanddealer. Bepreparedtogiveyourdealerthemodelandserial numberoftheengineandskidsteer(thelocationof thesenumbersisdescribedlaterinthissection). Recordtheserialnumbershere.

SkidSteerModel

SkidSteerSerialNumber

EngineModel

EngineSerialNumber

CAUTION

This symbol is used throughout this book whenever your own personal safety is involved. Take time to be careful!

ABOUT IMPROVEMENTS

NewHollandiscontinuallystrivingtoimproveits products.Wemust,therefore,reservetherightto makeimprovementsorchangeswhenitbecomes practicalandpossibletodoso,withoutincurringany obligationtomakechangesoradditionstothe equipmentsoldpreviously.

ALLSPECIFICATIONSARESUBJECTTO CHANGEWITHOUTNOTICE.

SECTION00-GENERALINFORMATION 00-2

COMPANY POLICY

Companypolicy,whichisoneofcontinuousimprovement,reservestherighttomakechangesindesignand specificationsatanytimewithoutnoticeandwithoutobligationtomodifyunitspreviouslybuilt.

Alldatagiveninthisbookissubjecttoproductionvariations.Dimensionsandweightsareapproximateonlyand theillustrationsdonotnecessarilyshowskidsteersinstandardcondition.

PARTS AND ACCESSORIES

GenuineNEWHOLLANDpartsandaccessorieshavebeenspecificallydesignedforNEWHOLLAND MACHINES.

Wewouldliketopointoutthat“NON-GENUINE”partsandaccessorieshavenotbeenexaminedandreleased byNEWHOLLAND.Theinstallationandoruseofsuchproductscouldhavenegativeeffectsuponthedesign characteristicsofyourmachineandtherebyaffectitssafety.NEWHOLLANDisnotliableforanydamagecaused bytheuseof“NON-GENUINE”NEWHOLLANDpartsandaccessories.

MODEL CODES

TherangeofSkidSteersdescribedinthismanualisidentifiedinthetextbytheenginehorsepowerPferdestarke. (PS).Theskidsteerslistedbelowmaynotbeavailableinallcountriesormarkets.

ENGINEPSMODEL

N84440L160

N844T50L170

00-3

SECTION00-GENERALINFORMATION

PRECAUTIONARY STATEMENTS

PERSONAL SAFETY

Throughoutthismanualandonmachinedecals,you willfindprecautionarystatements(“CAUTION”, “WARNING”,and“DANGER”)followedbyspecific instructions.Theseprecautionsareintendedforthe personalsafetyofyouandthoseworkingwithyou. Pleasetakethetimetoreadthem.

CAUTION

The word “CAUTION” is used where a safe behavioral practice according to operating and maintenance instructions and common safety practices will protect the operator and others from accident involvement.

WARNING

The word “WARNING” denotes a potential or hidden hazard which has a potential for serious injury. It is used to warn operators and others to exercise every appropriate means to avoid a surprise involvement with machinery.

DANGER

The word “DANGER” denotes a forbidden practice in connection with a serious hazard.

Failuretofollowthe“CAUTION”,“WARNING”,and “DANGER”instructionsmayresultinseriousbodily injuryordeath.

MACHINE SAFETY

Additionalprecautionarystatement(“IMPORTANT”) isfollowedbyspecificinstructions.Thisstatementis intendedformachinesafety.

,03257$17 The word “IMPORTANT” is used to inform the reader of something he needs to know to prevent minor machine damage if a certain procedure is not followed

00-4

SECTION00-GENERALINFORMATION

SECTION 10 – ENGINE

Chapter 1 – L160 - N844, L170 - N844T

10-1

CONTENT

SectionDescription Page 10000GeneralEngineInformation10-3 ................................................... GeneralDescription10-3 EngineComponentDescriptions10-3 EngineModelandSerialNumberLocation10-5 ...................................... TurbochargerLubrication10-5 SafetyPrecautions10-6 GeneralEngineSpecifications10-7 Troubleshooting10-11 L170-ExcessiveOilConsumption10-15 Specifications-ServiceStandards10-17 TorqueSpecifications10-21 EngineComponentsElectricalDiagram10-22 ....................................... 1000110EngineRemoval10-23 1000153EngineDisassemblySequence10-28 EngineComponentMaintenance10-36 ............................................ 1010155ValveSeat10-39 1010156CylinderBlock10-41 1010522PistonandPistonRings10-42 .................................................... ConnectingRod10-45 1010310BearingHolder10-47 FrontCrankshaftBearing(Bushing)10-48 .......................................... 1010330Crankshaft10-50 1010376FlywheelandRingGear10-52 1010640CamshaftAssembly10-52 1010666CamshaftGearandBearingAssembly10-53 TimingGear10-54 ............................................................... 1030441OilPump10-54 1030410OilFilter10-55 1040228WaterPumpAssemblyandThermostatHousing10-55 ............................... 1040230Thermostat10-55 1023024Governor10-57 GovernorOperation10-59 ........................................................

SECTION10-ENGINE

10-2 1030438EngineReassemblySequence10-61 .............................................. CrankshaftandBearingHolderAssembly10-62 RearOilSeal10-63 Backplate/FlywheelHousing10-63 ................................................ Flywheel10-63 PistonandConnectingRod10-64 OilIntakeandOilStrainer10-64 OilSump10-64 DipstickandTube10-64 FrontPlate10-64 IdlerGearandOilPumpAssembly10-66 TimingGearCaseInstallation10-66 ............................................... CrankshaftPulley10-66 InjectionPumpInstallation10-66 AdjustingtheFuelInjectionTiming10-67 ........................................... SpillTimingProcedure10-68 2910050ReinstallationofEngineintoSkidSteerFrame10-75 HowtoOperatetheEngineAfterOverhaul10-77 .................................... CoolingSystem10-78 CoolingSystemOperation10-78 WaterPumpAssemblyandThermostatHousing10-79 Radiator10-80 FuelSystem10-82 FuelSpecifications10-82 DieselFuel10-82 DieselFuelStorage10-82 FuelSystemComponents10-83 FuelGuage10-84 ColdStartAid10-85 ............................................................. FuelFilterSystem10-85 PrimingtheFuelSystem10-86 FuelSystemTesting10-87 ........................................................ FuelSystemComponents10-90 1023608FuelInjectionTiming10-96 Turbocharger-L170N844TEngine10-101 ........................................ 1025030TurbochargerRemoval10-103 MiscellaneousEngineElectrical10-116 1022310Shut-offSolenoid10-117 SpecialTools10-119 LaborGuide10-120

SECTION10-ENGINE

Op. 10 000

GENERAL ENGINE INFORMATION

NewHollandengines,N844usedinthemodel L160skidsteerandN844Tturbochargerengine usedinthemodelL170skidsteer.

GENERAL DESCRIPTION

TheN844,N844TSeriesarefour-cylinderstroke, liquid-cooled,compressionignitionengines, designedfordurability,lowweightandcompactness. TheenginesareIDI(InDirectInjection).The linerlesscylinderblock,three-piecehelicalgear train,andflange-mountedfuelinjectionpumponthe enginecam,reducefrictionalpowerlossandengine weight.Thespecialdirect-injectionorswirlchamber, alongwiththesmallboremulti-cylinderdesign,offers goodfuelconsumption,lownoise,andexcellent start-ability.

ENGINE COMPONENT DESCRIPTIONS

CYLINDER BLOCK

Thecylinderblockismadefromhigh-gradecastiron withcopperandchromeadditivesandisintegralwith thecrankcase.Thecrankcasefeaturesfivemain bearingsofthetunnelblockdesign,withcrankcase wallsextendingwellbelowthecrankshaftcenterline forstrengthandrigidity.Thecylinder’sboresare plateauhonedforoilretentionandextendedringlife. Thenon-machinedsurfacesaresealedtoensure cleanliness.

CRANKSHAFT

19992591

10-3

19992590 1

Thecrankshaftisachrome-molybdenumsteel forging,fullymachined,static,anddynamically balancedwithintegralcounterweights.Allbearing surfacesareinductionhardened.Theaxiallocation isbythrustwashersatthenumberfivemainbearing. Thefivemainjournalsruninreplaceable steel-backedcastcopper/leadalloybearings.The frontofthecrankshaftiskeyed. 2

PISTONS AND CONNECTING RODS

Pistonsarecastfromhighsiliconaluminumalloyand areheat-treatedforlowweightwithhighstrengthand goodthermalconductivity.Thepistonisfittedwith threerings;twocastiron,chrome-faced compressionringsandonesteel,chrome-faced controlledoilring.Thefullyfloatinggudgeonpin (wristpin)ismadeofchromemolybdenumsteelalloy hardenedbycarburizingandretainedbythe conventionalretainingringmethod.Theconnecting rodsaremachinedfromhigh-strengthforgedsteel. Thebigendbearingsarerenewablesteel-backed, copper/leadalloyoverlaywithtinplating.Thesmall endbearingsareapressfitplainbushingof tin-backedlead/bronze.

CAMSHAFT

Thecamshaftismadeofforgedsteelandisinduction hardened.Threeorfouradditionallobesatthefront operatethefuelinjectionpump.Attherear,afuellift pumpeccentricismachined.Thecamshaftis supportedbyrollerandneedlebearingsand lubricatedbysplashfeed.Thenoseofthecamshaft supportsthecamgear,governorweightcage,and governorsliderassembly.

CYLINDER HEAD

Thecylinderheadismadeofhighgradecopper chromecastiron,andincorporatesreplaceable heat-resistantalloysteelvalveseats.Inletand exhaustvalvesaremadeofhighgrade heat-resistantalloysteelwithtuftridedstemsand inductionhardenedheads.Eachstemisfittedwitha chromemolybdenumsteelcapforlonglife.

Thevalvesareoperatedbycolddrawnseamless tubepushrodswithhardenedsteelballandforged cupends.Flat-basedtappetsaremadefromcase carburizedchromemolybdenumsteeloperatingin

machinedboresinthecylinderblock.Therocker shaftisaninductionhardenedhollowsteeltube. Valveclearancesareadjustedbyhardened ball-endedscrewsandlocknuts.

ROCKER COVER AND INLET MANIFOLD

Thecoverismadeofcastaluminumwithanair intake,oilfiller,andcrankcasebreather.Itislocated inpositionbyrockerpillarstudsandsecuredbycap nuts.

GEAR TRAIN

Thegeartrainconsistsofthreehelicalgears–the crankshaftgearlocatedbyawoodruffkey,theidler gearhousesthelubeoilpump,andthecamgear incorporatesthegovernorweightcage.

FUEL SYSTEM

Aflange-mounted,Bosch-typefuelinjectionpumpis mountedinthecylinderblockandoperatedbylobes machinedontheenginecam.

LUBRICATING SYSTEM

Atrochoidlobeoilpumplocatedinthecenterofthe idlergearsendslubricatingoiltothemainoilgalley viaareliefvalvethroughaspin-onbypassoilfilterto themainoilgallery.Therockersarepressurefedvia anexternallymountedoilpipefromthemainoil gallerytothecylinderhead.

COOLING SYSTEM

Abelt-drivencentrifugalwaterpumpcirculates coolantviatheinternalwaterpassages.Thecoolant isradiatorcooledandtemperaturecontrolledbya conventionalthermostat.

10-4

SECTION10-ENGINE

ENGINE MODEL AND SERIAL NUMBER LOCATION

Theenginemodelnumberislocatedontherightside oftheengineblockat1.Theengineserialnumberis locatedat2.

Throughoutthismanual,whenevertheleft-or right-handsideoftheengineisreferredto,itisthat sideoftheenginewhenviewedfromtheflywheel end.

ThispublicationisproducedbyNewHollandNorth America,Inc.Everyendeavorismadetoensurethe informationcontainedinthismanualiscorrectatthe dateofpublication,butduetocontinuous development,NewHollandreservestherighttoalter specificationswithoutnotice.

TURBOCHARGER LUBRICATION

TheturbochargerusedontheL170dieselengine maynotreceiveadequatelubricationoncool/cold weather(below5°C,40°F)start-up,leadingto turbochargerbearingfailure.

Thefollowingproceduremustbeusedtoensure adequatelubricationoilissuppliedtothe turbochargerbearingsbeforehigh-speedengine operation:

1.Settheenginethrottleat1/3speed.

2.Turntheignitionswitchandallowtheautomatic glowplugtimertopreheattheengineuntilthe EIC“beep”isheard.

3.Starttheengine,butDONOTOPERATE ABOVE1,500RPMforthreeminutestoallowfor adequateoilflowattheturbocharger. Afterfullloadoperation,allowtheenginetorunatlow idleforoneminutebeforeengineshutdown.

10-5

SECTION10-ENGINE

SAFETY PRECAUTIONS

These safety precautions are most important:

CAUTION

Do not change the specification of the engine. Do not smoke when you put fuel in the tank. Cleanaway any fuel which has spilled and move material which has fuel contamination to a safe place.

Do not put fuel in the tank during engine operation.

Never clean, lubricate or adjust the engine during operation unless otherwise specified in this manual. Use extreme caution when working around moving parts to prevent injury.

Do not make any adjustments you do not understand.

Ensure the engine is not in a position to cause a concentration of toxic emissions

Persons in the area must be kept clear during engine and equipment or vehicle operation.

Do not permit loose clothing or long hair near parts which move.

Keep away from parts which turn during operation. Note that fans cannot be seen clearly while the engine is running

Do not run the engine with any safety guards removed.

Do not remove the radiator cap while the engine is hot and the coolant is under pressure, as dangerous hot coolant can be discharged.

Do not use salt water in the fresh water cooling system or any other coolant which can cause corrosion.

Keep sparks or fire away from batteries (especially while charging) or combustion can occur. The battery fluid can burn and is also dangerous to the skin and especially the eyes

Disconnect the battery terminals before you make a repair to the electrical system.

Only one person must be in control of the engine. Ensure the engine is only operated from the control panel or operator’s position.

If your skin comes into contact with highpressure fuel, get medical assistance immediately.

Diesel fuel and used engine oils can cause skin damage to some persons. Use protection on the hands (gloves or special skin protection solutions).

Do not move equipment unless the brakes are in good condition.

Be sure that the transmission drive control is in “Neutral” position before the engine is started. Do not use ether to start these engines

10-6

SECTION10-ENGINE

GENERAL ENGINE SPECIFICATIONS LOADER MODEL L160

EngineModelN844

TypeVerticalin-line4-strokenaturallyaspirated BasicThreadandSize

Bore84mm(3.31″)

Stroke90mm(3.54″ .) ........................................................................

CombustionSystemIDI(IndirectInjection/SpecialSwirl) CompressionRatio22:1 ....................................................................... SweptVolumeLiter(inch3)1,995(121.7)

FiringOrder1-3-4-2 ..............................................................................

RotationCounterclockwiseviewedfromflywheel LowIdle900-1000RPM

HighIdle(FullThrottle)3130-3180RPM ...........................................................

InjectionPumpFlange-mounted,Bosch-typeplungerandbarrel InjectorsBosch-typethrottle

InjectorSetting Kilograms/sq.cm(kgf/cm2)147-157

Poundspersq.inch(PSI)2132-2277 ..........................................................

TurboNO

GovernorMechanicalallspeed

ThermostatOperating Temperaturedegrees180°/203° F(82°/95° C)

OilPressureRelief35-50PSI(2.5-3.5kgf/cm2)

OilPressureSwitch4.3PSI

ElectricalSystem Starter12V Alternator12V ................................................................................ Battery(625CCA)12V

Weight,BareEngine(Industrial)191kg(421lbs.) ................................................... Height767mm(30.2″)

Length686mm(27.0″)

Width428mm(16.8″ .) .......................................................................

10-7

CoolingSystemLiquidwithwaterpumpandradiator ................................................. IndustrialCoolingSystemCapacity (lessradiator)Liters3.3 .......................................................................

SECTION10-ENGINE

L160

RecommendedEngineFluids

CoolantCleansoftwater.Maximumantifreezeconcentration 50%(ethanediolbase-ethyleneglycolwithcorrosion inhibitortoBS6850:1985orASTMD3306-74or AS2108-1977)

FuelCetanenumber-45minimum,Viscosity-2.5/4.5 centistokesat104° F(40° C).Density-0.835/0.855 kg/liter,Sulfur-0.5%ofmassmaximum.Distillation 85%at662° F(350° C).(AviationfuelJP4isnot recommended;however,JP5andJET-Aare acceptable,providing5%spindleoilisadded).

LubricatingSystem

SystemPressurefeedwithTrochoidpump .......................................................

OilTypeAPISH/CG4SAE10W-30 (SAE5W30forextendedcoldweatheroperation)

FilterPart#NH#86546618 .....................................................................

EngineCrankcaseCapacityw/Filter7.6L(8qt.) DipstickLength367mm(14.4″)

10-8

LOADER MODEL

EngineModelN844T

TypeVerticalin-line4-strokenaturallyaspirated BasicThreadandSize

Bore84mm(3.31″)

Stroke90mm(3.54″ .) ........................................................................

CombustionSystemIDI(IndirectInjection/SpecialSwirl)

CompressionRatio22:1 SweptVolumeLiter(inch3)1,995(121.7)

FiringOrder1-3-4-2

RotationCounterclockwiseviewedfromflywheel .....................................................

LowIdle900-1000RPM

HighIdle(FullThrottle)3130-3180RPM

InjectionPumpFlange-mounted,Bosch-typeplungerandbarrel InjectorsBosch-typethrottle ......................................................................

InjectorSetting Kilograms/sq.cm(kgf/cm2)147-157 ............................................................

Poundspersq.inch(PSI)2132-2277

TurboYES ......................................................................................

GovernorMechanicalallspeed CoolingSystemLiquidwithwaterpumpandradiator IndustrialCoolingSystemCapacity (lessradiator)Liters3.6

ThermostatOperating Temperaturedegrees160°/180° F(71°/82° C)

OilPressureRelief50-64PSI(3.5-4.5kgf/cm2)

OilPressureSwitch4.3PSI ........................................................................

ElectricalSystem Starter12V ................................................................................... Alternator12V Battery(625CCA)12V

Weight,BareEngine(Industrial)206kg(454lbs.)

Height789mm(31.1″)

Length666mm(26.2″ .) ......................................................................

Width482mm(19.0″)

10-9

SECTION10-ENGINE

LOADER

GENERAL ENGINE SPECIFICATIONS

MODEL L170

RecommendedEngineFluids

CoolantCleansoftwater.Maximumantifreezeconcentration 50%(ethanediolbase-ethyleneglycolwithcorrosion inhibitortoBS6850:1985orASTMD3306-74or AS2108-1977)

LubricatingSystem

SystemPressurefeedwithTrochoidpump .......................................................

OilTypeAPISH/CG4SAE10W-30 (SAE5W30forextendedcoldweatheroperation)

FilterPart#NH#86546618 .....................................................................

EngineCrankcaseCapacityw/Filter7.6L(8qt.) DipstickLength367mm(14.4″)

10-10

SECTION10-ENGINE

LOADER MODEL L170

SECTION10-ENGINE

Op. 10 001 10

ENGINE REMOVAL

Theenginecanberemovedfromtheloaderbytwo methods:

Method1:Removingthereardoor,radiator,oil cooler,andsupportasanassembly.

Method2:Tiltingthecabandboomforwardtogain access.

Foreithermethod,raiseandsupporttheboomonthe boomlockpins,1,toaccesstheenginearea.

METHOD 1

(Without Tilting Cab)

1.Openreardoor,1.Removethetopenginehood, 2,andboththerightandleftenginesidecovers.

2.Removethebattery.

3.Drainthecoolingsystem,radiator,andengine block,3.

4.Removetheupperandlowerradiatorhosesfrom theengineblockandplugthehoseswithplastic plugs.

5.Removetheaircleanerhose,1,fromtheintake manifoldandcap.

6.Unplugtheenginewireharnessfromthemain harness,2,andgroundwiresfromtheengine bellhousing,3.

7.Unhookthecontrolvalvehydraulicoilreturnline attheoilcoolerandcap,4.

10-23

10-24

SECTION10-ENGINE

8.Unhookthehydraulicoilreturnline,1,fromthe chargecheckvalveandcap.

9.Removetheeight1/2″ capscrewsfromthe supportat1,bothsides,andremovetheradiator andoilcoolerassembly.

Thesupportisshownremovedwiththeair cleaner,radiator,oilcooler,oilfilter,andfuel pumpattached.

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SECTION10-ENGINE

10.Raisetheseattotheraisedlatchedposition,1, toaccessthehydrostaticpumpsandengine bellhousing.Removetheneutralizerplatereturn springandhardware,2,fromthebellhousingand removeplate.

Removethehydrostaticpumptobellhousingand pumpsupportretaininghardwareat1and2.

11.Attachliftingchainstotheenginelifteyesat1, andhooktotheliftingdevicetosupportthe engine.

12.Removetheenginemotormounthardwareand slidetheenginetothereartouncouplethe hydrostaticpumpassemblyfromtheengine bellhousing.Lifttheengineassemblyfromthe skidsteerframe.

10-25

METHOD 2

(Tilting Cab and Boom Forward) FollowthecabtiltingprocedureinSection00ofthis manualforproperinstructions.

1.Removethemufflerfromtheexhaustmanifold, 1.

2.Removethebattery.

3.Drainthecoolingsystem,radiatorandengine block,raisehandles,1,movingtheradiatortothe rearanddrainthecoolingsystemfromdrain plug,2.

4.Removetheupperandlowerradiatorhosesfrom theengineblockandplugthehoseswithplastic plugs.

5.Removetheaircleanerhose,1,fromtheintake manifoldandcap.

6.Unplugtheenginewireharness,2,fromthemain harnessandgroundwires,3,fromtheengine bellhousing.

7.Unhookthecontrolvalvehydraulicoilreturnline attheoilcoolerandcapat4.

10-26

SECTION10-ENGINE

8.Unhookthehydraulicoilreturnline,1,fromthe chargecheckvalveandcap.

9.Removethefanfromthewaterpumpshaft.

127( The L160 N844 engine fan is equipped with a cover over the center of the fan.

10.Removetheneutralizerplatereturnspringand hardware,1,fromthebellhousingandremove plate,2.

11.Removethehydrostaticpumptobellhousingand pumpsupportretaininghardwareat1and2.

10-27

SECTION10-ENGINE

12.Attachliftingchainstotheenginelifteyesat1, andhooktotheliftingdevicetosupportthe engine.

13.Removethefusepanelsupporthardwareand movethepanelforclearance.

14.Removetheenginemotormounthardwareand slidetheenginetothereartouncouplethe hydrostaticpumpassemblyfromtheengine bellhousing.Lifttheengineassemblyfromthe skidsteerframe.

Op. 10 001 53

ENGINE DISASSEMBLY SEQUENCE

Op. 55 301 10

ALTERNATOR

Disconnectthealternatorwireharnessandwires,1. Removethealternatorpivotandadjustingbracket, hardware,2.

Op. 10 104 14

REMOVE COOLING FAN AND PULLEY

Removethefanretaininghardwareandspacers. TheL160N844enginefanisequippedwithacover, 1,overthecenterofthefan.

10-28