Sany truck mixer SANY 2011
Breif Introduction Hunan Automobile Manufacturing Limited Company Subsidiary company of Sany group
It mainly produce concrete truck mixer and the chassis of special purpose vehicles.
10 automobile production lines (such as assembly line, paint line,test line )
Annual output: 8000 (Before)
Brand new designed No. 21 workshop has gone into operation.
Annual output:12000 ～ 15000 (Now)
2
1. The main components and characteristics of truck mixer
2. New technology of SANY truck mixer
3. Safety operation of truck mixer
4. Maintenance of truck mixer
The main components of truck mixer
1. The main components and characteristics of truck mixer
The main components of truck mixer
The characteristics of 6 m3 truck mixer
The main components of truck mixer
1. The main components and characteristics of truck mixer
The main components of truck mixer
The characteristics of 6 m3 truck mixer
The main components of truck mixer Operating principle of the truck mixer The full power takeoff of engine transfers the power to hydraulic pump through transmission shaft. The hydraulic pressure is transferred to hydraulic motor through oil pipe, which will convert the hydraulic pressure to kinetic energy. The kinetic energy is transferred to the mixing cylinder through the speed reduction and torque rise achieved by the reducer to drive the mixing cylinder and achieve feeding, mixing, stirring and discharging etc.
The main components of truck mixer
Superstructure
1 Cab 2 Electric equipment 3 Engine
Truck mixer Chassis
4 Drive system 5 Running system 6 Brake system 7 Steering system
The main components of chassis
Engine
Cab
Transmission
Clutch
Front axle
Tyre
Middle axle
Rear axle
Frame
Suspension
The main components of truck mixer
1 Mixing cylinder 2 Subframe 3 Feeding/unloading device
Superstructure
4 Operating system 5 Water supply system
Truck mixer
6 Drive system of mixing cylinder
Chassis
7 Electric system
The main components of truck mixer Reducer
Subframe Mixing cylinder
Motor
Feeding hopper
Oil pump Discharge hopper
Radiator Side guard rail
Fence for anti-collision
Discharge chute
The main components of truck mixer
1 Connecting flange
Function:The two helical blades will be driven to rotate around the axial line of the mixing cylinder and to mix or unload the concrete.
2 Cylinder 4 3
3 Mixing blade 2
Mixing cylinder
4 Mixing plate 1
5 Extending fin 6 Raceway 7 Small feeding cone
5
6
7
The main components of truck mixer Function: Connect the chassis crossbeam and support the mixing cylinder. 1 Oil pump connecting board 2 Front stand
Subframe
3 Main beam 4 Back stand 5 Empenage
The main components of truck mixer Function: The feeding hopper accepts concrete and delivers it to the mixing cylinder; the discharge hopper delivers the concrete from the mixing cylinder to pumping device or working surface.
1 Feeding hopper 2 Discharge hopper
Feeding/unloading device
3 Main discharge chute 4 Auxiliary discharge chute 5 Support tube
The main components of truck mixer Function:The operating system mainly controls the rotation speed and direction of the mixing cylinder. 1 Push-and-pull flexible shaft
4
2 Rotating shaft-rocker mechanism
7
6
3 Connecting rod mechanism
5
4 Operating handle Operating system 5 Remote throttle
2 1
6 Speed governor pull rod 7 Reset spring
3
4
The main components of truck mixer The operating system can control five working conditions of the mixing cylinder.
Working condition
Rotation direction of the mixing cylinder
Rotation speed (r/min)
Feeding
Positive rotation (clockwise)
6 ～ 10
Mixing
Positive rotation (clockwise)
1～3
Unloading
Reverse rotation (anticlockwise)
1～6
High speed unloading
Reverse rotation (anticlockwise)
6 ～ 14
Stop
Static
0
The main components of truck mixer Function: Flush the mixing cylinder and clean the truck body. 6
1 Releif valve
5 4
2 Air gauge
8
3 Ball valve 4 Pressure water tank Water supply system
5 Safety valve 6 One-way valve(0.05MPa) 7 One-way valve(0.53MPa) 8 Water pipe 9 Water gun
9
7
3
2
1
The main components of truck mixer Function:Drive the mixing cylinder to ratote positively and reversely.
1 Reducer 2 Mortor Driving system
3 Oil pump 4 Radiator 5 Oil pump
The main components of truck mixer
1 LED side mark light 2 Insulating adhesive tape Electric system
3 Working lamp 4 LED height lamp
1
2
3
4
The characteristics of 6 m3 truck mixer
1. The main components and characteristics of truck mixer
The main compents of truck mixer
The characteristics of 6 m3 truck mixer
The characteristics of 6 m3 truck mixer
6m3 The height of the overall vehicle decreases from 3750mm to 3435 mm; the length of the overall vehicle decreases from 9028mm to 8885mm. The overall vehicle has better mobility and safer driving.
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The characteristics of 6 m3 truck mixer SY5250GJB 4
Curb weight
13280kg
SYM1250T4
Full-loaded overall weight
25000kg
Drive mode
6×4
Max. speed
90km/h
Emission standard
Euro Ⅲ
Max. gradeability
30%
Wheelbase
3225+1350
Min. turn radius
≤16m
Overall dimension(length ×width×height)
8885×2490× 3454
Fuel consumption per 100 kilometers (L/100km)
≤35L/100km
Agitating volume
6m³
Overall vehicle mode Chassis mode Chassis
Main para met ers
Suppers tructure
Geometric volume
12.42m³
Stuffing rate
48.31%
Tilting angle
9.5°
Feeding speed
≥3m³/min
Discharge speed
≥2m³/min
Slump scope
50mm~210mm
Residue ratio of discharge
＜ 0.5%
The characteristics of 6 m3 truck mixer
6m3
SANY chassis Main paramete rs
2009 style QXPW08SY
Engine
HINO P11C-UH, 240kw/2100rpm
Clutch
Pull-style clutch
Transmission
Shanghai ETO-16109A
Fuel tank
Aluminum, 300L
Tyres
11.00R20-18PR/8.00V-20
Front axle
6.5T Sanhuan axle
Middle/ rear axle
Superstru cture
9/16/13
Cab
Taizhou Shenli 2×13T ， speed ratio: 5.833
Reducer
Italy PMB6SP
Oil pump
Germany Rexroth A4VTG071HW100/33R
Motor
Germany Rexroth AA2FM80/61W
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The characteristics of Sany truck mixer The characteristics of Sany truck mixer
Large Fast Good Economical
Large variety Fast running
Good configuration Oil-saving
Large loading Fast discharging Good service
Worry-saving
Labor-saving
The characteristics of Sany truck mixer Large 1. Large variety ďźš There are a large variety of truck mixers, both self-made chassis and imported chassis, such as 6m3, 8m3, 9m3, 10m3, 12m3, 15m3 and so on. â—?
The characteristics of Sany truck mixer Such famous brands of engines as Hino, Weichai, Cummins are optional.
Engine power （ ph ）
Remark
P11C-UH
325
It can not be equipped by 12m3 truck.
P11C-UJ
350
Optional engine
Shanghai Hino
Weichai
Dongfeng Cummins
WP12.336N WP10.336N ISLe 340 30
336
340
It can not be equipped by 12m3 truck.
The characteristics of Sany truck mixer 2. Large loading ： Among the same standard volume, its loading volume is the largest in China; 20% larger than the standard volume.
The comparison of Sany 6 m3 truck and competitors Item
Water capacity （ m3 ）
Sany
7.8
Xingma
6
The characteristics of Sany truck mixer Fast 1. Fast running ： World-famous brand engines, strong power system, high max.speed, high acceleration.
Item
Sany
Xingma
Max. speed （ km/h ）
90
85
The spent time when accelerating to 60 km/h from the starting （ S ）
51.8
52.2
The characteristics of Sany truck mixer
2. Fast loading
Large pitch design of the mixing drum→ when the engine is at idle speed, the feeding speed ≥3 m3/min; the discharging speed≥2 m3/min. It can easily meet the requirements of feeding and discharging.
Feeding and discharging speed comparison of 6 m3 truck
Item
Sany
Xingma
Feeding speed （ m3/min ）
5
2
Discharging speed （ m3/min ）
3
3
The characteristics of Sany truck mixer Good 1. Good configuration ďźš 2009 style cab appearance and interior trim gives a brand new visual strike.
The characteristics of Sany truck mixer
â—? Aluminum alloy fuel tank and reservoir has high cleanliness, high corrosion resistance, high antirust and small weight.
The characteristics of Sany truck mixer â—? All-steel radial tyre, nice wear resistance, good puncture-proof performance, high safety.
The characteristics of Sany truck mixer Durable pull-style clutch, clutch friction of imported material.
Item
Push-style clutch
Pull-style cluth
Pressure force
22500±1500N
26000±1500N
Torque capacity
2400N.m (Max.)
2800N.m
Cost
1100 yuan (RMB)
1650 yuan (RMB)
The characteristics of Sany truck â—? Anti-stone paint for damping dealant, which reduces noise and provides mixer resistance to corrosion and rust.
The characteristics of Sany truck mixer 2. Good service Get the most and the best from your investment.
Worldwide after-sale service network, 24 hours hotline service, 120 self-built service websites, 100 special repair stations, a lot of accessory reservations, 4008 calling service system and professional service engineers(for 24 hours).
The characteristics of Sany truck mixer Economic 1. Oil-saving â—? Dual-power model control. Engine can provide different powers according to the working conditions (full-loaded conditions and non-loaded conditions).It can save energy and improve fuel economy. â—? The rotating speed of electronic fan can be controlled by procedure and adjusted according to the temperature and power of the engine, so as to minimize the power loss.
Oil-saving ≼ 7%
The characteristics of Sany truck mixer
An example : the oil-saving of one truck m ixer Journey: 50000km/ per year Oil comsumption: 50L/ 100km Oil price: 5.6 yuan/L, Saving: 50000÷100×50×5.6×7%=9800 yuan (RMB)
The characteristics of Sany truck mixer 2. Worry-saving â—? Imported
famous brand hydraulic drive system: low fault rate, labour-saving. Hydraulic system of Sany truck mixer
Oil pump/ Motor
Germany Rexroth/American Eaton
Reducer
Italy PMP 〠TOP
The characteristics of Sany truck mixer Strong marketing ability Flexible payment Convenient purchase
The characteristics of Sany truck mixer 3. Labour-saving Air-pressure water supply system Several flushing points ( Automatically flush the mixing drum blades,small charging cone, feeding hopper and discharge hopper simultaneously or seperately, saving labour and time)
The characteristics of Sany truck mixer ● Multi-point mechanical feeding and discharging operating system: convenient and labour-saving.
Operating system inside cab
1 Push-pull flexible shaft ； 2 Throttle flexible shaft ； 3 Connecting mechanism ； 4 Rotating shaft-rocker mechanism ； 5 Rear operating handle
New technology of Sany truck mixer
2. New technology of Sany truck mixer
New technology of Sany truck mixer
High reliability High amenity High intellectuliaztion Energy-saving, discharge-reducing Large capacity
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New technology of Sany truck mixer
Spare parts optimization and upgrading
High reliability
Road test technology
Digital design
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New technology of Sany truck mixer • Spare parts optimization and upgrading 1. Clutch operation system optimization (WABCO clutch, clean air sucked from reservoir, good multiple sealing structure, long servic e life ) 2. Transmission optimization (famous brand) 3. Brake system optimization (TBK brake and WABCO brake valv e) 4. Oil sealing optimization (famous brand, good sealing performa nce)
New technology of Sany truck mixer 5. Radiator improving Frame supporting and core body suspending, built-in rubber soft pad
Core body suspension structure can effectively eliminate frame torsion and vibration stress and prevent radiator from cracking and leaking water.
Increase auxiliary pull rod, so as to eliminate the front and rear vibration.
New technology of Sany truck mixer 6. Varta battery
Dry-charged battery
Battery free of maintenance (more labour-saving, no need for supplementing electrolyte during service life.)
New technology of Sany truck mixer 7. Frame optimization Intensive assembled rivet with increased diameter is solid. Improved frame structure with extended backup plate and misplac ed connecting makes stress decrease by 20%-30%. Connectin g board
Connecting board
Before change
After change
New technology of Sany truck mixer 8. Subframe improving
Rectangular tube → Opposite fastener structure
It can improve crossbeam intensity and subframe torsional ability.
Reinforced plate is added.
New technology of Sany truck mixer 9. Cab front suspension optimization
Rigid connection → Hinged connection (prevent pull rod from cracking)
Nylon bush → Rubber bush (improve vibration isolating and weariness resistance performance)
New technology of Sany truck mixer 10. Tyre optimization High loading capacity, low rolling resistance, nice wear resistance, good puncture-proof performance; Better tyre dynamic balance and rediating performance.
Non-vaccum tyre + Commmon steel ring
Vaccum tyre + Spinning pressure steel ring
New technology of Sany truck mixer
Spare parts optimization and upgrading
High reliability
Road test technology
Digital design
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New technology of Sany truck mixer Bump road
Corrugation road
Pebble road
Block road
Road test
Sany
12000km
National 8000km standard
Four-wheel positioning instrument for adjusting front toe and parallel degree
Air suspension test
Four-point positioning for testing front toe
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New technology of Sany truck mixer
Spare parts optimization and upgrading
High reliability
Road test technology
Digital design
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New technology of Sany truck mixer Digital design
During the design stage, it uses the digital sample machine and adopts dynamic/static calculation and analysis, and mechanism/hydraulic simulation technology, thus shortening the design period, lowering the test cost and facilitating the project development. 54
New technology of Sany truck mixer
New style industrial design
High amenity
New cab interior trim
55
New technology of Sany truck mixer
56
New technology of Sany truck mixer
Multifunction steering CAN digital wheel instrument Digital electric control A/C
Multi-funtion display
57
New technology of Sany truck mixer
Old
New Digital electric control A/C
Old
Multi-function display
New Fuel prompt 58
New technology of Sany truck mixer
High intellectulization 1. Automatic prompt for oil replacement of the supply system, air intake system, axle, gearbos and engine of truck mixer. 2. Safety monitoring system for oil and concrete; monitoring systerm for engine operating condition.
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New technology of Sany truck mixer
Overall truck configuration technology
Energy-saving, discharge-reducing
Dual power engine
Low weight design
Engery-saving of the overall truck: Money-saving:
≼10%;
2000yuan (RMB) / year
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New technology of Sany truck mixer High technology High configuration High reliability Pro.
Item
Sany
Competitor
Advantages of Sany
Single power
More energy-saving (Dual power
curve engine
mode is Sany patent )
Dual power mode engine 1
Engine
highest speedlimiting performance
2
Instrument
CAN digital instrument
Electric combination instrument
3
Brake
TBK
Home-made
4
Friction plate
Specific design
Common
Data sharing and failure and maintenance prompt Higher reliability and longer service life Longer service life
New technology of Sany truck mixer
5
Clutch master cylinder, slave cylinder
Imported brand
Homemade brand
WABCO product, higher reliability and better performance
6
Braking elements
Imported brand
Homemade brand
WABCO product, better performance
7
Overall truck mixer
Integrated design without subframe
With subframe
Low gravity center, slow weight
8
Mixing cylinder
SG 700 series wear resistance materials
9
Intellectualizatio n
Sany intelligent service system
500/520 series material No
Nicer wear resistance and longer service life Customized intelligent service system
New technology of Sany truck mixer High amenity
Pro.
Item
Sany Competito rs
Advantages of Sany
1
Cab appearance and interior trim
Brand new industrial model design
Common
Simple and unique, higher amenity
2
Front suspension
Changeable rigidity/stiffness and less leaf spring
Common
Higher amenity
3
Cab suspension
Air suspension
Common
New technology of Sany truck mixer High oil-saving Pro.
Item
Sany
Competitors
Advantages of Sany
1
Engine
Dual power
Single power
Higher oil-saving
2
Transmission
With overspeed gear
Without overspeed gear
Higher oil-saving
3
Rear axle
Single speed-reducing axle
Dual speed-reducing axle
Higher drive efficiency; higher oil-saving
Speed-limiting technology
No
Higher oil-saving
Integrated design without subframe
With subframe
Lower weight; higher oil-saving
4
Overall truck configuration
Safety operation of truck mixer
3. Safety operation of truck mixer
Safety operation of truck mixer Selection of qualified driver The driver of truck mixer should meet the following qualifications: A valid driver's license; Good health; Eyesight above 0.7, without color blindness; Audition should meet the requirements of working conditions; Be familiar with operation of the water supply and the operating system and receive training; Know well escaping approaches under various emergencies; Presonnel under the influence of alcohal or druge and those taking reactioninhibiting medicine may not operate the mixer truck.
Safety operation of truck mixer Selection of qualified operator
The operator of truck mixer should meet the following qualifications:
All mixer truck operators must receive specialized training; All mixer truck operators must be equipped with necessary personal protective equipment; not wear loose clothes and scarf, and open coat or loosen shirt sleeves, so as to avoid being trapped in any rotating parts; Presonnel under the influence of alcohal or drug and those taking reactioninhibiting medicine may not operate the mixer truck.
Safety operation of truck mixer Precautions before operation
Read the instructions carefully.
Before a new truck is put into use, it must undergo trial run, and it is required to check: whether the drive system, control system and water supply work normally; whether the transmission case has any abnormal noise; whether accessories and driver’s tools are complete.
Carry out inspection before operating the truck mixer. If discovering any crack, oil and ice, etc. on the armrest, foot step, and dashboard, eliminate the risk and then operate the truck; otherwise, it may be at risk of slip and injury.
使用搅拌车前， 请绕车检查！
Safety operation of truck mixer Precautions of operation
It is prohibited to carry any people on the ladder and platform when the truck is on the way of transportation.
Overloading is prohibited.
Travelling at a high speed is prohibited.
Safety operation of truck mixer Precautions on parking
Do not park the truck near a place with combustible materials, e.g. wilted grass, after traveling, so as to prevent the overheated exhaust pipe from setting fire to such materials around;
驻车制动
Pull up the parking brake by all means during feeding and discharging operation.Wedge supports must be underlaid the wheels when the truck is parked on a slope to prevent the truck from gliding.
限轮器
Safety operation of truck mixer Precautions on parking ď ° Before parking, allow the engine to run at the idling speed for 3min~5min, and throttle it up for 2-3 times before shut-off. Avoid the engine from immediate shutoff at a high temperature. This is unfavorable for the engine to radiate heat, hence affecting the service life of the engine.
Safety operation of truck mixer Precautions for operation inside the mixer cylinder
Remove the engine-starting key and give it to the operator.
搅动 锁紧
Fix the mixing control handle inside the cab to the OFF position. 搅动 锁紧
Safety operation of truck mixer Precautions for operation inside the mixer cylinder
Confirm that the rear operating handle is pushed to the OFF position. 搅动 锁紧
Erect the board “personnel working inside the mixing cylinder” at a conspicuous position outside the truck.
Protective equipment must be worn to operate inside the mixing cylinder (dust mask, protective spectacles, and earplug).
搅拌筒内 有人工作
Safety operation of truck mixer Whole working process of the truck mixer Preparation for feeding. Confirm the drainage is complete. Rotation speed of the mixing cylinder for drainage is 6r/min-10r/min.
Discharge outlet of mixing plant Feed inlet of truck mixer Rotation speed of the mixing cylinder for feeding (feed inlet must align to discharge outlet of the mixing plant):2r/min-6r/min
Safety operation of truck mixer
The rotation speed should be increased properly to prevent the leakage, when the truck mixer is climbing a slope≼10% and the concreet slump is ≼200mm.
Rotation speed of the mixing cylinder for hopper cleaning:1r/min3r/min
Rotation speed of the mixing cylinder for stirring and travelling:1r/min-3r/min Mixing time is less than 1.5h.
Safety operation of truck mixer
Time required for mixing again before discharging: 1min (6r/min10r/min)
Rotation speed of the mixing cylinder for discharging:
Safety operation of truck mixer
Rotation speed the mixing cylinder for temporary flushing of the mixing cylinder and discharge chute: 6r/min-14r/min Mixing time is less than 1.5h.
Rotation speed of the mixing cylinder for empty load travelling: 1r/min3r/min
Maintenance of truck mixer
4. Maintenance of truck mixer
Maintenance for truck mixer superstructure Component
Mixing cylinder Mixing cylinder system
Operatin g system
Measure of treatment
Remark
1. Whether there are over abrasion, serious corrosion, loosened fixture, 1. Trimming or and abnormal noise replacement 2. Whether there are 2. Scraping adhered concrete and serious depos
Roller of mixing cylinder
Whether there are over abrasion and damage
Add grease when Repair welding, appropriate (a thin snagging layer)
Rotating part of the discharge chute
Whether the rotation is flexible and whether there is any abnormal abrasion
Add or replace lubricant
Get loosened or not
Screw up
Fastener Drive system
Item
Drive shaft
Operating handle
Whether flange nut is loosened and whehter universal joint is loosened Whether operation can be carried out normally and flexibly and whether there are damages
Screw up
Trimming or replacement
Add grease once a month
Maintenance for truck mixer superstructure
Hydraulic Contaminated, discolored, or oil emulsified or not
Reducer Hydrauli c system
1. Whether there is any leakage; 2. Whether oil is enough; 3. Whether any foreign body is contained in oil; 4. Whether bolt and nut get loosened
Replace hydraulic oil
Replace hydraulic oil for 100 hours for initial use, for 500 hours for the second time, and then every 1000 hours or every year at least
1. Screw up; 2. top up; 3. replace oil
Replace it for 100 hours for initial use, and then for every 1000 hours or every year at least
Oil filter
Contaminated or jammed or not Replace
Plunger pump, motor
Whether it is leaked or fails to work normally
Screw up or replace parts
Oil pipe, joint
Whether it is leaked
Screw up or replace parts
Water supply system
Water pipe
Whether there is any water leakage
Screw up or replace parts
Fastener
Bolt, nut
Whether they are loosened
Screw up
Replace it for every 20000km or at each overhaul of the truck (the earlier one shall prevail)
Maintenance for truck mixer chassis Class I maintenance a) Cleaning: flush body and chassis and wipe engine as well as all parts of chassis, clean fuel pump, air filter and fuel filter; b) Inspection and tightening: check fixation of connecting bolt and nut for all parts of engine, chassis, tip mechanism, seat and body. Test and tighten if necessary. Especially pay attention to the one with specified torque; c) Adjusting: check and adjust tension of fan belt as per requirements, free travel of brake pedal and clutch pedal, free oscillation of steering wheel and travel of parking brake lever; d) Tyre: inflate and provide with valve cover as per requirements, and check outer surface of tyre for serious scuffing.
Maintenance for truck mixer chassis Class II maintenance a) All items of Class I maintenance; b) Clean engine oil filter element, and replace paper filter element of engine oil primary filter; c) Check clutch and brake main pump; d) Overhaul wheel brake. Clean, lubricate and adjust clearance among hub bearing, brake friction plate and brake hub, and rotate wheels; e) Replace engine and transmission, and change lubricant for middle and rear axles; f) Drain deposit in fuel tank, and clean fuel filter; g) Check and adjust cleft of valve;
Maintenance for truck mixer chassis Class II maintenance h) Overhaul injection pump and transfer pump if necessary, and adjust injecting pressure and spraying; i) Check fixation of cylinder cover nut, and tighten to specified moment under hot condition; j) Check and adjust free travel of clutch pedal and brake pedal; k) Check level of steering gear oil tank, and replenish as per specified level if insufficient; l) Check free rotation of steering wheel, and adjust if necessary;
Maintenance for truck mixer chassis Class II maintenance m) Check whether cross bearing and middle support of transmission shaft are loose as well as fixation of each flange nut; n) Check and adjust front harness; o) Check fixation of U-bolt and lifting lug for front and rear steel plate springs, and tighten U-bolt nut with full load; p) Clean and lubricate bearing of starter and generator; q) Check brake and clutch pipeline for oil or air leakage, and tighten or replace in time; r) Check air brake system. Clean or replace filter element of air filter for air compressor.
Maintenance for truck mixer chassis Class II maintenance m) Check whether cross bearing and middle support of transmission shaft are loose as well as fixation of each flange nut; n) Check and adjust front harness; o) Check fixation of U-bolt and lifting lug for front and rear steel plate springs, and tighten U-bolt nut with full load; p) Clean and lubricate bearing of starter and generator; q) Check brake and clutch pipeline for oil or air leakage, and tighten or replace in time; r) Check air brake system. Clean or replace filter element of air filter for air compressor.
Maintenance for truck mixer chassis Class III maintenance During Class III maintenance of truck, if some parts of engine are deformed greatly, which results in obvious inferior engine performance and increased fuel consumption, carry out the following work on engine: a) Dismantle cylinder cover to check valve and its seat, guide and spring as well as rocker shaft etc., and repair or replace if necessary; b) Check wear of piston ring, piston, cylinder liner, small end bush and bearing bush of connecting rod, repair or replace if necessary;
Maintenance for truck mixer chassis Class III maintenance c) Measure axial clearance of crankshaft, and check wear of thrust plate and main bearing bush. Replace if surface of bearing bush appears serious spalling, ablation or scuffing; d) Check wear of timing gear, drive gear and engaging surface. Measure backlash, and repair and replace if necessary; e) Clean cylinder body, oil pan and screen of engine oil strainer; f) Running-in maintenance: refer to items of Class I maintenance; g) Seasonal maintenance: refer to Class II maintenance.
Quality changes the world
Thank you !
9/16/13
三一 · 湖南汽车制造有限责任公司
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