Low-speed Tractor Use and Maintenance Instructions

8/17/2019 Low-speed Tractor Use and Maintenance Instructions

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Foreword

Thank you for choosing ZZ5371 series of low-speed tractors. The series of vehicles range in a total

of 10 models with three types of drive, i.e., 4 × 2, 6 × 2 and 6 × 4, two types of transmissions, i.e.,

automatic and mechanical. These models are applicable to drop-and-pull transportation operations at bulk dock terminals, container transshipment, ro-ro operations at frontier dock terminals and other

operations while they can also be used in container logistics parks, iron and steel companies andother areas.

This manual is a product manual for the series and users oNf this manual are expected to digest the

information relevant to their selected models regarding the performance, structure, utilization,maintenance and other aspects. Before a new vehicle is put into operation, please carefully read the

"Operation & Maintenance Manual" and rigidly follow the provisions to carry out necessarymaintenance in a timely manner to safeguard the normal lifespan and obtain better economic

benefits with the vehicle.

Only use clean fuel satisfying the quality requirements for the vehicle and oil, lubricant (grease),

hydraulic oil, power oil, repository antifreeze and other working media should be consistent with

the grades set forth in the instruction.

The current "Operation & Maintenance Manual" is best used in reference to the "Steyr WD615Series Engine Manual", "Allison Automatic Transmission Operation Manual", "ZF transmission

Operation & Maintenance Manual" and "Fully Hydraulic Steering Gear Operation Manual".


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In case of failures or malfunctions, please contact CNHTC local branches or service outlets ASAP

for timely and effective and friendly services.

This manual shall be subject to changes without prior notices as the products are continuously

improved.

CNHTC

July 2011


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Contents

Foreword ................................................................................................................................... 1

Table Of Contents ...................................................................................................................... 3 I. Vehicle Number ................................................................................................................. 1

(I) Vehicle Model ................................................................................................................... 1 1. Numbering Patterns ............................................................................................................................12. Label Position .....................................................................................................................................1

(II) Chassis Number .......................................................................................................... 2

(III) Engine No. .................................................................................................................. 2

II. Vehicle Operation ....................................................................................................... 3

(I) Cab External Devices ........................................................................................................ 3 1 Door switch .........................................................................................................................................32. Engine hood opening and closing ...............................................................................................43. Facelift ................................................................................................................................................5

1. Dashboard ...........................................................................................................................................72. Rocker switch .............................................................................................................................83. Instruments .........................................................................................................................................9

4. Push-button shifgear .........................................................................................................................105. Parking brake .................................................................................................................................... 116. Fifth wheel lifting handle (Fifth wheel lifting models) ............................................................. 11


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7. Fifth wheel unlocking control button ................................................................................................12

8. Steering wheel...................................................................................................................................129. OFF switch........................................................................................................................................1310. Seats ..........................................................................................................................................1311. Combined switch on steering column .......................................................................................15

12. Overhead air-conditioner ..........................................................................................................1613. Heating system ..........................................................................................................................1814. Automatic Transmission TCM (electronic control unit) and VIM (Vehicle junction box)1 heater 18

(III) Driving Preparation................................................................................................... 20 1. Routine checkup before driving ........................................................................................................202. Engine start .......................................................................................................................................21

(IV) Start Driving, Driving and Gear Shifting ................................................................... 22

1. Start ...................................................................................................................................................222. Driving and gear shifting ..................................................................................................................23

3. Functions of differential lock (6 × 4 models) ...................................................................................244. PTO (ZF mechanical transmission 4 × 2 model optional for PR70 PTO) ........................................255. Clutch operation................................................................................................................................256. Stop driving ......................................................................................................................................28

(V) Braking ..................................................................................................................... 29 1. Energy supply device ........................................................................................................................292. Driving brake ....................................................................................................................................29

3. Emergency and parking brake ..........................................................................................................304. Exhaust brake....................................................................................................................................305. Trailer brake ......................................................................................................................................31


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6. Brake piping maintenance ................................................................................................................31

(VI) Operation in Winter .................................................................................................. 32 1. Cooling system .................................................................................................................................322. Brake device .....................................................................................................................................32

3. Battery ..............................................................................................................................................324. See the engine start part for the use of flame preheating device. ......................................................32

(VII) Wheel Replacement .................................................................................................. 33

(VIII) Cab Turnover Operation............................................................................................ 34 1. Steps ..................................................................................................................................................342. Precautions for cab turning ...............................................................................................................35

3. Flip system filling and exhaust .........................................................................................................364. Contingency measures ......................................................................................................................365. Special notes .....................................................................................................................................37

(IX) New Vehicle Running-in ........................................................................................... 37 (X) Steering System Operational Instructions .................................................................. 38

1. Steering system installation diagram ........................................................................................382. Main technical data ...........................................................................................................................39

3. Precautions ........................................................................................................................................39

III. Fifth Wheel Hydraulic Lift System Operational Instructions ..................................... 40

1. Control valve kit adjustment .............................................................................................................402. Exhaust .............................................................................................................................................40

3. Rising and lowering time control test ...............................................................................................414. Notes .................................................................................................................................................41


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IV. Special Device .......................................................................................................... 42

1. Oil pump unit ....................................................................................................................................42

2. Hourly speedometer sensor ...............................................................................................................423. Fuel tank oil gauge............................................................................................................................42

V. Vehicle Maintenance........................................................................................................ 43

(I) Oil change on a large assembly ........................................................................................ 43

(II) Fuel, Lubricants and Filling Volume ......................................................................... 44 (III) Regular check items .................................................................................................. 45

1. Vehicle routine checkup and maintenance interval schedule Unit: Engine working for 10 hours .452. Routine maintenance items ...............................................................................................................453. All Grades Maintenance Items .........................................................................................................47

(IV) Grease lubrication points .......................................................................................... 55 1. Lubricating points, rate and period ...................................................................................................552. Lubricating points layout ..................................................................................................................57

(V) Electrical Device Functional Instructions .................................................................. 59 1. Electrical Board Instructions ............................................................................................................592. Onboard transformer operations .......................................................................................................60

VI. Electrical Principle Diagram ..................................................................................... 61

VII. Brake Principle Diagram ........................................................................................... 62

VIII. Fifth Wheel Lifting Hydraulic Device Principle Diagram .......................................... 64


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I. Vehicle Number

In case of claim application, ordering of spare parts or contacting for service, users are kindly requested to

accurately and completely specify the number of vehicle.

Vehicle number shall include the following information:

Model:---------------------------------------------

Chassis No:---------------------------------------

Engine No.:---------------------------------------

Date of Purchase:-------------------------------

(I) Vehicle Model

1. Numbering Patterns

ZZ5371VDM□□□□□□

ZZ: CNHTC; 5: Special purpose vehicle; 37:Nominal GVW; 1:Brand; VD: vehicle characteristics; M: Engine

power;□:Emission Standard;□□: Wheelbase,□: Drive type,□□: Series code.

2. Label Position


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Open the cab hood and the label of model and chassis number of the vehicle is located in the upper left corner.

(II) Chassis Number

Chassis number is located on the left side of front axle center line on

carling.

☆LZZ□□□□□ post☆

(III) Engine No.

The number is located in the upper left side of the body as shown in thediagram and inclusive of the following items:

Rated power – RPM

Model

Order number

Exworks serial number

Net weight


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II. Vehicle Operation

(I) Cab External Devices

1 Door switch

1.1 Left doors

1.1.1 Operating door switch from the exterior side

To open doors: The door is at "fully closed" position rather than in a locked state. Directly press the lock buttonand pull the handle outward to open the door; if the door is in a locked state, turn the lock counterclockwise for180 ° with the key before pressing the lock button and pulling the handle outward to open the door.

To close doors: Shut the vehicle door forcibly so that the door is in "full closed "position. If the door is to belocked up, turn the lock clockwise for 180 ° with the key before taking out the keys and it is done. At this point, by pressing and pulling the outside handle, the door can not be opened.

1.1.2 Operating door switch from the interior side

To open doors:Flip up the inner lock handle to open the door lock and push it outward youwill be able to open the door.

To close doors: Shut the vehicle door forcibly so that the door is in "full closed "position andthe door is locked. If the door handle is flipped downward (i.e., turning in an angle), the door is locked up and it

can not be opened from outside.


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1.2. Rear sliding door

1.2. 1 Operating door switch from the exterior side

To open doors: Flip up the handle when the door is not in "full closed "position before pulling the rear door handle to push it to the left side of the vehicle to open

the door; if the door is in a locked state, turn the lock counterclockwise for 180 °with the key before pulling the handle to open the door.

To close doors: Shut the vehicle door forcibly so that the door is in "full closed"position. If the door is in a locked state, turn the lock clockwise for 180 ° with the key beforetaking out the key. At this point, by pulling the handle, the door can not be opened.

1.2.2 Operating door switch from the interior side

To open doors: Flip down the handle to open the door lock and push it to the left side of the

vehicle you will be able to open the door.

To close doors: Slide the vehicle door forcibly to the right side of the vehicle so that the dooris in "full closed "position and the door is locked.

2. Engine hood opening and closing

2.1 Opening engine hood

2.1.1 Opening engine hood lock set

2.1.2 Lift the engine hood and take out support rod to prop it

2.2 Closing engine hood

Handle

Lock

latch


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2.2.1 Remove the rod and put it back before putting down

the engine hood.

2.2.2 Lock it up.

3. Facelift

3.1 Facelift is equipped with one control device each on the

left and right

After manually pulling forward, it opens automatically and by pulling downward, it will close automatically

Facelift

Air spring

Engine hood

Support


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3.2 Electrical box

Located on the inner right side of the facelift.

To open it, pressing the button and the electrical box coverwill open;

To close, press the button on the cover and release it in the

proper position and the box cover is automatically locked.


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(II) Cab Interior

1. Dashboard

1 Gearbox oil temperature gauge (fitted with automatic transmission models) 2 Instruments 3 Enginespeed gauge 4 Rocker switch area5 Instruments adjustment knob 6 Gearbox error indicator 7 Shift-gear 8 Control panel for A.C 9 Parking brake lever


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2. Rocker switch

1. Light rocker switch 2.Fog lamp rocker switch 3.Alarm light rocker Switch 4 .Horn rocker switch5.Diagnosis switch for engine error 6.Diagnosis connector 7.Rear work lamp switch 8.Warning light switch9.Instruments adjustment knob

Rocker switches correspond from left to right, top to bottom


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3. Instruments

1、Speedometer/h 2、Engine Speedometer/h 3、Water temperature gauge 4、oil pressure gauge

5、Clear button for short mileage fuel consumption 6、LCD monitor


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7、Air pressure gauge for braking circuit 1 8、Air pressure gauge for braking circuit 2

4. Push-button shifgear

(1) Press N first before shifting

(2) After selecting gear D, press ↑key or ↓key for manual upshift or down-shift

(3) Pressing ↓and ↓ keys at the same time to get the first set of failure diagnosis

information, and the information will be displayed repeatedly; Press the Mode button to enter the next fault indication.

R-reverse gear key

(4) Trouble diagnosis information code composition. N-neutral gear key

Failure code position (2 digits) + master code (2) + sub-code (2 digits) D-forward gear

(5) Clearing failure code

First, enter the diagnostic mode; press the MODE (mode) button

MODE-mode button ↑ - upper function key ↓ - lower function key and keep for about 3 seconds to remove allactive indicators. The removal of non-active failure codes will be given in the Transmission "Failure DiagnosisManual."


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5. Parking brake

(1) The location shown in the diagram is the parking brake position

(2) Loosen the parking brake handle: push forward in direction

of the driver first and then push up (You can hear the alarge air release sound )

(3) Parking brake: Pull down the handle (You can hear inflatingsound)

6. Fifth wheel lifting handle (Fifth wheel lifting

models)

(1) UP position: push lightly right

(2) STOP IN THE MIDDLE position: middle position

(3) DOWN position: pull lightly to the left downward

Notes: The device comes with electronic control position switch, Operate tenderly to gently shift it to place and itis done. Do not move forcibly to avoid damages! During driving and parking, it must be in the middle position.Avoid system working in the lowest or highest position for a long time. At the limit, the handle should be


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manipulated to enable it to return back to the middle position.

7. Fifth wheel unlocking control button

Used for fifth wheel lifting or lowering models and it is of automatically reset pneumatic control switch; pressdown the fifth wheel to unlock it (While driving, do not manipulate the button); when the traction pin is in

forward impact, the fifth wheel will automatically locked up.

8. Steering wheel

Steering wheel with knob easy for driver to reverse frequently. Users can decide according to the actual operation

scenarios on keeping or removing the knob.


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9. OFF switch

Located in the right front position of the driver seat, near the seat storage. It is applied by foot. Depress the switchto turn off the engine.

Notes: Only operate under normal vehicle air pressure.

10. Seats

10.1 Adjustable rigid hydraulic seat (with two-point seat belt)

① Weight adjusting ② Forward and backward adjusting

③ Height and tilt adjusting ④ backrest tilt adjusting

10.2 Air suspension seat

The seat combines and optimizes air springs and hydraulic shock absorber.The suspension system mainly includes air spring, height valve, hydraulic shock absorbers, metal structure, and


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anti-penetrating elastic elements. According to a person's weight and road conditions, seat height can be

automatically adjusted, greatly improving seating comfort.

10.2.1 Technical Data

Seat width 485mm

Height 1125mm

height adjustment 0～ 65mm 7 gears adjustable

Forward and backward adjustment 0 ～ ± 75mm 5 gears adjustable

Backrest angle adjustment 0 °～ 41.4 ° (relative to the plumbing line backward) 0 °～ 60 ° (relative tothe plumbing line forward)

10.2.2 Operations

a) Air source interface

Air source tube is a 4 × 6 plastic hose; p-side is connected to vehicle air source with the inner diameter ofφ6 fast plug-type pneumatic hose fitting. When the connected air source demonstrates no load, the seat is at

the lowest point. When you sit on it, the seat will automatically adjust to the designed height.

b) Rear height adjustment

Gently move handle upward while exerting proper force down (up) to rear seat cushion so that the seatcushion lowers (rises) to the needed position. Release handle and it is done.

c) Backrest elevation adjustment


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Move the handle up forcibly and turn the backrest to the desired degree. Release the handle and lock

backrest position.

d) Front-end height adjustment

Gently move handle upward while exerting proper force down (up) to rear seat cushion so that the seat

cushion lowers (rises) to the needed position. Release handle and it is done.

e) Forward and backward position adjustment

Move the handle up and move the seat forward and backward to the desired position. Release the handle.

f) Height locking handle

When air bag or other damping device elements are damaged or fail, the seat will be at the lowest point. In

order to facilitate driving, seat can be lifted to the proper height by adjusting the handle from the horizontal position to vertical position (seat bottom end as the datum plane) to lock it up so that the seat will maintain

a fixed design height.

11. Combined switch on steering column

11.1 Steering and headlamp operations:

P0: During front dipped lamp, overtaking and across-road driving

repeatedly move the handle to P3; release it and it will function asdimming.

P1. Right turning indicator.P2. Left turning indicator.


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P3.Front dipped, high beam reset automatically when hand is released.

P4. Front high beam.

11.2 Wiper operation:

O --- Close I --- Open --- Spray

Electric horn button

Turn on the rocker switch 5 (speaker switch), air horn

12. Overhead air-conditioner

12.1 Air conditioning parameters:

Cooling capacity 4500W Rated voltage 24V

Compressor speed 2200-2800r/min Magnet clutch 45W

Air flow 720m3 /h Weight 23kg


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12.2 Operational control

12.2.1 When the SA in the OFF position - off

12.2.2 When the SA in the L, M, H Position – A/C opening, withventilation rate corresponding to low, medium and high

12.2.3 Temperature setting knob set as 32 -18 degrees, stepless adjustable

1. Outlet 2. Temperature setting knob 3. Air volume knob 4. Front air outletSA: Air flow switch WT: Temperature setting knob LED: compressor indicator(Green)

12.3 A/C operation

12.3.1Start

Start the engine - rotate fan switch (set air speed gear) - Rotate temperature control knob (proposed to be set in thelowest position)

12.3.2 Stop

Rotate temperature control switch counterclockwise down to end , compressor and condensing fan stop working;at this time it is the separate ventilation state. Then switch off the air volume switch, A/C stops.

12.4 Notes:

12.4.1 When the vehicle is running in idle, increase engine speed appropriately to avoid flameout;

12.4.2 Periodically clean air conditioning condenser and do not use steam for spray cleaning to avoid systemover pressure that might damage the system. Spray cleaning can be done with compressed air or cold water;


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12.4.3 After 2000-hour air conditioning, replace dryer filter;

12.4.4 After 3000-hour air conditioning, overhaul or replace condenser.

When painting the customized cab number on the roof, take care not to allow debris into the overhead air

conditioner.

13. Heating system

Independent heating system, with the exchanger laid out in the driver's leftfront position.

Turn on the heater rocker switch 4 on the dashboard, the heater starts workingand turn off the hearter rocker switch 4, the heater stops working.

In winter, turn on the heater to defrost on the windshield via the front airoutlet. For mechanical transmission models, heater is installed in the rightlocation.

1 heater

14. Automatic Transmission TCM (electronic control unit) and VIM (Vehicle junction box)

1 heater

TCM positive power cord: 370 and 310 (connected to the orange line), directly connected to the battery positive

terminal, with 10A fuse.

TCM negative power cord: 369 and 309 (connected to the gray line), directly connected to the battery negativeterminal, with 10A fuse.


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Notes: When welding is carried out for the vehicle, disengage the wiring harness connector TCM.


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(III) Driving Preparation

Preparations include: Before driving each time, perform routine checkup and inspection of engine

start.

1. Routine checkup before driving

A. Check coolant level

Open the cab side cover; observe coolant level from the transparentfluid window in the right of the upper water container. If it is notenough, open the radiator cap, fill the specified coolant until it comes

above the level display window and then cover cap.

Notes:

(1) When filling coolant, exhaust the air from the heater system.

(2) When the engine is in the high temperature, do not fill

coolant.

B. Check the engine oil levelOpen the cab side cover, pull out the engine oil gauge; oil level should be between the upper and lower

Water gauge Fluid tank cap


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scale; if necessary, add specified engine oil from the fuel filling port.

C. See Allison information for automatic transmission oil level.

2. Engine start

2.1 Key switch operation

Rotation position

Inserting position

Function

1 A Connect electrical devices when vehicle is stopped

2 A Disconnect all, shut down engine; the key can be taken out

3 A Driving position

4 B Start engine

2.2 Starting

Connect the parking brake and put the shift handle to the neutral position (electronically controlled transmission,

"N”), then press the power key switch and turn to position 4. After starting, oil pressure meter should displayimmediately. Each start-up time should be less than 15 seconds; start-up intervals should be no less than 30seconds.

Notes: After starting, do not allow the cold engine to run at high speed.

2.3 -40℃ flame preheating device instructions

1) The driver shall decide whether to carry out preheating operation or not according to the engine cooling


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water temperature. Under normal circumstances, when the temperature is below zero degrees Celsius and it

is more difficult to start the engine, flame preheating device should be used as the auxiliary start.

2) Turn the ignition switch to 3rd

gear (15 terminal electrified); press the preheat button (rocker switch), the button indicator lights up, it means preheating is started with the preheating plug electrified. For about 26seconds, the light goes out, it means the system is heated to the starting state; at the same time, the system

manifold solenoid valve opens to get the preheating plug connected to the oil passage and you shouldimmediately start the engine.

3) Turn the ignition switch to 4th

gear (50 terminal electrified); start the engine; when the engine is running,the system produces oil passage pressure, and the preheating plug ignites the fuel to generate flame in the

intake manifold; heat the engine breathed air; follow the sequences of actions to ensure smooth start.

4) The starting time should be no longer than 30 seconds. After starting, the system continues working forabout 40-60 seconds to enable stable working of the engine; for about 40-60 seconds, the device

automatically stops working.5) If a start is unsuccessful, the ignition switch will be off (screwed to 2

nd gear), then it is re-connected (turned

to 3rd

/ 4th

gear), repeat the above preheating process.

(IV) Start Driving, Driving and Gear Shifting

1. Start

After the engine starts, if the low air pressure warning light is on, you can not start to drive until the filling

pressure is up to 0.55Mpa and the warning light goes out. Release the parking brake lever and prepare to startdriving. Before the air cylinder pressure (which can be read at the needle barometer) reaches 0.7Mpa, the vehicle


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has not yet fully met the appropriate driving state; only after the air cylinder pressure reaches 0.7Mpa, the brake

can achieve the required braking performance.

2. Driving and gear shifting

2.1 When starting, apply accelerator pedal moderately.

2.2 When shifting from the forward to reverse or from reverse to forward, the vehicle must be completelystopped.

2.3 No sliding in neutral, otherwise, serious damages to transmission may occur.

2.4 Pay attention to monitor the temperature of the engine and gearbox during driving.

2.5 When towed due to breakdowns, in particular when it is dragged for longdistance with the engine off, disconnect the driving shaft or make the drivingwheels off the ground. Mechanical transmission gear shift is placed in neutral

when the vehicle is towed.

2.6 In case of poor road conditions, the transmission can be set below 4th gear for

driving. Methods: ↑up, ↓ down.

2.7 Automatic Transmission models

1) Engine idle speed should be around 600RPM. If the idle speed is too high or too low, no gearing may bemade.

2) Throttle sensor blocking may lead to no gearing (throttle small wing arm as of the diagram)2.8 Mechanical transmission models


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1) ZF S6-120 / 6 gear transmission; gear lever position shown on diagram.

2) When shifting down to lower gears, the engine speed should not exceed 1700 r / min.

2.9 Mechanical transmission shifting

1) Always apply 1st gear for starting when fully loaded!

2) During shifting, pull lever in a balanced manner until it is fully engaged.

3. Functions of differential lock (6 × 4 models)

3.1 When the wheels slip or fall into pits, use the differential lock on the driving shaft to improve the vehicle's passability. Differential lock includes wheel differential lock and axle differential lock.

3.2 Differential lock operation

1) Axle differential lock

Used to lock the differential between the first and second rear axles. When the vehicle is stopped ortraveling at a speed equal to walking, axle differential lock toggle switch (rocker switch 9) can be used to

control the axle differential lock; when the vehicle is moving, differential lock engagement must beseparated from clutching. When the axle differential lock is engaged, indicator on the rocker switch 9 willlight up.

2) Wheel differential lock

Used to simultaneously lock the first and second differential rear axle wheel differential. Only when the

vehicle is traveling in straight direction can the toggle switch (rocker switch 10) be used to control to theaxle differential lock and use the wheel differential lock. When the differential lock is working, indicator on


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the rocker switch 10 will light up.

Notes: When the wheel differential lock indicator is still on, the vehicle can not turn or run in high speed. In principle, first, the axle differential lock should be engaged before wheel differential lock engagement.

When the vehicle is passing through bad roads, the differential lock should be released immediately; release

the throttle and apply the clutch to make the differential lock rocker switch return to its position. After therocker switch indicator goes out, the differential lock is released in action.

4. PTO (ZF mechanical transmission 4 × 2 model optional for PR70 PTO)

4.1 Technical data

1) Output position: top right output

2) PTO ratio: 2.12 × 0.789 = 1.673

3) Output speed: 1200rpm (the ideal engine speed) × 1.673 (overall ratio) = 2007rpm (PTO output speed)4) Rotation: L (from PTO output end ) , same as the engine direction

5) Output mode: Internal spline Big journal 25mm, small journal 20.1mm, teech slot width 6mm

6) Recommended oil pump: CB-HJH series gear pump (Xuzhou Construction Machinery); users may select based on demand; it can be directly connected.

4.2 Engaging: Apply clutch pedal and wait for 6 seconds to engage the PTO through toggle switch 9(axledifferential lock).

5. Clutch operation


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5.1 Clutch control system working parameters and structural characteristics

1) Working parameters:

Working media: air, brake fluid;

Working pressure: brake fluid is about 4Mpa; compressed air is about 0.8Mpa;

Working temperature: -40℃ ～+80℃ ;

Brake fluid: SAE 116/DOT3;

Pedal stroke 200mm, free travel 40mm;

Pedal force: When boosting is in place, it is around 190N; about 590N without boosting.

2) Structural characteristics:

Clutch control system uses hydraulic clutch control, with pressure booster-type mechanism; it features withthe advantages of light manipulating and excellent mobility.

When the clutch pedal is applied, the hydraulic master cylinder piston retracts and the brake fluid in thehydraulic chamber enters into the booster chamber along oil passage; the brake fluid acts on the as working pressure acting on the working piston on one hand, and on the other hand, it acts as control pressure acting

on the air pressure control valve to get it separated so that compressed air can enter into the boostercylinder chamber to jointly push the working piston acting on the pull rod and acting on the clutch toseparate the rocker while separating the separation fork to separate the bearings to get the clutchseparated.

5.2 Clutch control system assembly and adjustment


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1) Check and adjust the gap between master cylinder push rod and piston.

When assembling, lightly turn the push rod by hand to adjust the length until feeling it touching the piston;then turn the push rod back a circle to ensure a gap between the push rod and piston of 0.7mm - 1mm;tighten the locking nut. This gap should not exceed 1mm; otherwise, it would reduce the effective stroke ofthe master cylinder and affect the clutch separation effect.

2) Check and adjust boosting cylinder free stroke.

Clutch release bearing should have 2mm～3mm free traveling distance to ensure that the bearing will notmeet early damage due to working in long-term compression. Therefore, the booster cylinder push rod

should have 6mm～8mm traveling distance. When assembling and adjusting, do not install the return

spring first; use the pretightened spring of in the booster cylinder to push the piston and push rod towithstand the clutch arm; at this time, adjust the limiting screws so that bolt end will keep a gap of 1mm tothe bracket; tighten the locking nuts and then install return spring.

3) Discharging all air in hydraulic system.

Clutch hydraulic system is filled with air and the effective stroke of the booster piston will be reduced,leading to incomplete clutch separation. When assembling or disassembling the oil pipe, release the air

release valve on the booster and add the specified brake fluid from the oil storage tank; apply clutch pedalwhile adding the fluid until overflow is witness from the air release valve. Then tighten the air release valve.To quickly and completely discharge air in the system, sub-exhausting method can be used. First, dischargethe air from the front end of the oil pipe; apply clutch pedal 2 or 3 times when discharging before stepping

it down to bottom and holding it, loosen the master cylinder connection nut and the air will be discharged

from the front end. Tighten the nut and then release pedal; repeat the above actions 4 to 6 times. The samemethod above is used to discharge air from the rear end of the booster at the air release valve.


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Special attention:

a. In the air discharging process, take care to release the pedal after air release or coupling nut is releasedto avoid air suction. When the pedal is raised, it should be up to the maximum height so that the brakefluid in the storage tank can be supplemented to the hydraulic pressure chamber of the master cylinder.Standards for correctly judging complete air discharging from clutch hydraulic system: Step down the

clutch pedal, booster push rod effective stroke reaches 20mm～25mm; when it is less than 20mm,continue to exhaust air till it is completely discharged.

b. When a new vehicle is maintained for the first time, readjust gap. In use, for each Grade 2maintenance, check and adjust. For each Grade 1 maintenance, check it; pull clutch arm, a gap shouldappear at the end of the limiting bolt.

c. Hydraulic system working medium must be of the “Lai can" brand DOT3 brake fluid from Fujian Nanan Rongzhong Petrochemical Plants. When dismantling oil pipes, Loctit572 thread sealant can be

used for sealing coupling nuts and joints.d. When changing brake fluid, residual fluid in the hydraulic system must be cleaned. Change the

specified grade of fluid of the same batch.

6. Stop driving

6.1 After heavy loading, engine temperature is high; so run in idle for 3 to 5 minutes before flameout.

6.2 When flaming out the engine, the driver can depress the air exhaust valve between between the two feetand it is done.

6.3 When the vehicle stops running, pull the parking brake lever to 2 "Brake" position. 6.4 Operate only undernormal vehicle air pressure.


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(V) Braking

The vehicle braking system includes the energy supply device, driving brake, parking and emergency brake andauxiliary brake.

1. Energy supply device

Energy supply device includes compressor, integrated air dryer with regulator and corresponding air cylinder. Aircompressor is the device to turn mechanical energy into the air pressure. When the engine is running, air

compressor runs alongside. When the piston stroke is downward, the outside air is sucked in the cylinder throughthe intake port and intake valve via the filter. When the piston stroke id upward, air in the cylinder is compressed,with increased pressure while overcoming the air valve spring pretightening will make the air valve open;compressed air is pumped into the tank through outlet. Dual cylinder air compressor is equipped with unloading

device and pressure regulating valve; when the cylinder pressure exceeds specified value for the pressure regulator,air suction and exhaust will happen between the two cylinders alternately so that the air compressor will be

brought under the unloading operation mode.

When any of the air cylinder is seeped, change the drying can.

Total Air Storage Volume of Each Model

Model Total Air Storage Volume

4×2 80L

6×4/6×2 100L

2. Driving brake

Pedal controlled dual-circuit pneumatic brake. Working pressure: 0.75Mpa; regulator cutoff pressure: 0.8lMPa.The first circuit acts on the rear axle (or tandem rear axle) wheels and the second circuit functions on the front


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axle wheels. Once air cylinder pressure in one of the two circuits drops to below 0.55Mpa, the corresponding

brake low air pressure alarm indicator will light up. At this time, stop the vehicle immediately and find out thereasons for the pressure leakage.

In a short period of time, continuously applying full brake several times may also lead to pressure drop below0.55MPa.

Leakage check: When the engine is flamed out, get the parking brake engaged, the pressure drop in 2 hours will be maximum 0.05MPa or in 30 minutes maximum 0.0lMPa.

3. Emergency and parking brake

Parking brake can be used for emergency braking and parking brake; it acts through the spring energy storage brake cylinder on the rear axle (or tandem rear axle). Parking brake valve handle is manipulated to achieve controlof the brake (Parking brake connected to the location as of the diagram); when the braking system fails, it relieson energy storage spring promotion to achieve emergency brake automatically.

Only when the brake system pressure is up to 0.55Mpa will the parking brake lights out and the spring brake fullyreleases.

Should the main braking suddenly fails during the vehicle driving, immediately pull up the parking brake handle

and the brake strength varies with the pulling range of the handle and "pumping the brake" can also be exploredhere.

Before starting the engine, parking brake handle must be in the brake position. Otherwise, the brakesystem pressure increases, the original parking brake function will be eliminated. Parking brake handle is

locaated on the dashboard at the right side of the driver.

4. Exhaust brake


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This device share the same device with the engine flameout system.

It is controlled by the button installed at the rear position in the cab between the driver’s two feet. Depress the button to flame out the engine and at this time, the running vehicle may use the energy consumed by the enginefor auxiliary brake.

Using the exhaust brake can reduce the frequency of main brake, tire and wheel brake wearing and heating whileextending the lifespan, reducing fuel consumption and improving driving safety.

For manual transmission: when using the exhaust brake, the following should be noted:

(1) The engine speed should not exceed 2000 r / min.

(2) Transmission in neutral gear will not achieve the function of auxiliary brake. In low gear, the exhaust brake

will be highly efficient.

5. Trailer brake

Internationally standard red and yellow spiral air pipes, red air supply pipe, yellow signal pipe are connected

correspondingly with the joints at the front end of the trailer. When the spiral pipe is not connected with the trailer,

it is mounted to the rear right bracket of the cab.

6. Brake piping maintenance

When welding, cutting or drilling in the vicinity of the plastic pipe, the following provisions must be observed:

(1) Release air in the pipe in advance.

(2) Cover the pipe up to avoid sparks, flames and hot chip damages.


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(VI) Operation in Winter

1. Cooling system

The repository antifreeze used for the cooling system may freeze under -20 ℃ and if the vehicle is operated under-20℃, concentration may be appropriately increased, with the maximum concentration up to 60% and it will not

be frozen below -46℃. If the concentration further increases, it may lead to cooling system corrosion.

Notes: When different cooling fluids are used, the cooling system should be thoroughly cleaned.

2. Brake device

Water condensation in the air cylinder shall be promptly released to avoid icing and pay attention to the workingcondition of the dryer. Under normal circumstances the lifespan of the desiccant is six months; if the air cylinder

is found to drain more sewage, it indicates that the dryer has failed and the desiccant should be replacedimmediately.

3. Battery

Regularly check the liquid level and density of battery electrolyte, with theliquid level 10-15mm higher than the pole plate and the density of1.24g/cm

3above. If the vehicle is not used for a long time, and the temperature

is low, batteries should be removed and placed in the warmer interior place.

4. See the engine start part for the use of flame preheating

device.


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(VII) Wheel Replacement

Notes:

1. To replace the wheel, pay attention to consistency of tread patterns and

the forward direction.

2. To replace the wheel, pay attention not to damage the thread on wheel bolts.

3. Brake drums and wheel hub must not be tainted with paint, grease and

other dirt.

4. Pressing surface of wheel nut should be clean, with no dirt or oil.

5. Before installing wheel, first clean the outer circle corresponding to

wheel alignment and wheel deceleration shell and apply a little grease.6. Wheel bolts and wheel nuts threads should be applied with a little

grease, oil or other anti-occlusion agent.

7. All of the wheel nuts threads are of right threads. Install wheel and

with the wheel suspended, diagonally cross-tighten the nuts insequence before putting down the wheels to tighten the nuts with550-600NM torque.

Each time after reinstalling tires, tire nuts must be retightened after atrip of 50KM.


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(VIII) Cab Turnover Operation

1. Steps

1.1 Cab flipping

1.1.2 Before turning over the cab, remove all stuff not fixedinside.

1.1.3 Detach the wiring and braking pipe connections between the

tractor cab and trailer.

1.1.4 Move the electric pump handle to the location shown on theright diagram.

1.1.5 Pull the red handle out to lift the cab to the maximum

position.

1.1.6 Release the red handle to automatically reset.

Notes: Each time when turning over, the cab must be turned to

the maximum position for operations below the cab.

Nobody shall be allowed to enter the cab during cab turning.


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1.2 Turn cab back to the position

1.2.1 Move the electric pump handle to the down location shownon the right diagram.

1.2.2 Continue to press the button so that the cab will fall down.

1.2.3 When the sound of hydraulic lock is heard, i.e., the lock onthe cab enters into the hydraulic lock block; continue tooperate the cab until no obvious displacement will happen.

1.2.4 At this time when entering the cab, the cab lock signalshould not light up. Otherwise the cab did not return to its

position. Continue to turn it back.

2. Precautions for cab turning

2.1 During the rising or lowering of the cab, the system will produce a warning sound to alert for personnelsafety.

2.2 No standing in front of or close to the cab during turning operation.

2.3 The parking brake should be in "Brake" position before turning operation.

2.4 If the hydraulic lock can not unlock due to system problems, push the "L" flip on the lock base unit todetach the lock hook.

2.5 Flip pump “down” position is the driving position.

2.6 When the cab is lifted close to the center of gravity and over flipping axis, carefully pump the operational


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button to avoid impact.

2.7 When the cab is lowering close to the bottom point, carefully pump the operational button to avoid impact.

3. Flip system filling and exhaust

3.1 The filling and exhaust of the flip system will only be conducted when the cab in thenormal position.

3.2 Filling steps:

3.2.1 Open oil plug 1 to add specified hydraulic oil.

3.2.2 Move the oil pump handle to the lifting position; while operating with the pumphandle to slowly lift the cab, continue to fill till it is filled up.

3.2.3 Move the cab down and excessive oil will overflow from the fuel filling port.

3.2.4 Operate the oil pump with the handle slowly to move the cab down and exhaust air in

the system.

3.2.5 Finally, tighten the oil plug.

4. Contingency measures

When electric pump is damaged or fails, cab lifting and lowering can be operated manually.

When in operation, the up and down movement should be as fully positioned as possible, with the frequency nottoo fast.

1


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5. Special notes

When doing maintenance operation under the cab, the cab shall be turned up to the maximum point; for modelsthat can be turned up to the maximum point, reliable support must be in place to ensure safety.

(IX) New Vehicle Running-in

1. The running-in period is set when the engine motor hourly speedometer reaches 100 hours in

reading.

2. Before running-in, routine inspections to the vehicle shall be done to ensure vehicle in normal

working conditions.

3. During the running-in period, only drive on flat and good roads.

4. New vehicle can not be attached to trailer during running-in period.5. Inspect and control of engine oil pressure as well as coolant temperature for normal conditions.

6. Pay attention to transmission, wheel and brake drum temperatures; if overheated, reasons

should be found out and immediately adjust or repair.

7. New vehicle must have tire nuts retightened after 25h driving upon completion of the

running-in or reinstallation of tires.

8. Fifth wheel hydraulic lifting system shall be lifted and lowered for 5 to 10 times in idle speedafter installation of the journal.


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(X) Steering System Operational Instructions

This system adopts a fully hydraulic steering gear.

1. Steering system installation diagram

1. Hydraulic steering tank

2. Steering oil pump

3. Steering gear

4. Left steering cylinder

5. Right steering cylinder

Steering System Principle Diagram


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2. Main technical data

2.1 System maximum pressure 172Ba

2.2 Rated flow 200ml/r 2.1

2.3 Maximum working temperature 93℃

2.4 Allowable temperature difference to the system 28℃

2.5 Max. allowable manual steering torque 136NM

2.6 Inner and outer steering angles: 32 °and 43 °respectively

3. Precautions

3.1 To ensure cleanness and prevent dirt from entering into thehydraulic system 3.2 Piping interface shall not be sealed with

raw material straps, etc.

3.3 Avoid steering end bearing axial force

3.4 Always check the tank oil level and regularly replace the filterand hydraulic oil

3.5 When turning left or right, turn the steering wheel 4 to 5 lapsand it will reach the dead point

Remarks: Fully hydraulic steering device does not have the autoreturning back function

Hydraulic Principle Diagram


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III. Fifth Wheel Hydraulic Lift System Operational Instructions

1. Control valve kit adjustment

1.1 Check valve: Turn counterclockwise to the outer side, that is, not

cutting the flow; the user can adjust according to actual usages;the more it is turned clockwise to the inner side, the slower thelowering speed will be.

1.2 Outer side overflow valve: No adjustment is allowed.

1.3 Back pressure overflow valve: turn counterclockwise externallyfor 3 or 4 laps to lock up (depending on lowering time; if it isslow, rotate inwards).

1.4 Magnet valve, hydraulic check valve and overflow valve are

not allowed for adjustment

1. Magnet valve 2. Hydraulic check valve

3. Check valve 4. Overflow valve5. Back pressure overflow valve

6. Integrated block

2. Exhaust

2.1 Engine idling rises and lowers for 5 times each.

2.2 After an interval of 1 hour, engine running at 1100 ~ 1200 r / min, rising and lowering for 5 times.

1

2

3

564

2 3 Af i l f 1 h i i 1400 / i i i d l i f 5 i


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2.3 After an interval of 1 hour, engine running at 1400 r / min, rising and lowering for 5 times.

Notes: The vehicle has completed air exhaust process upon exworks. When the hydraulic oil leakage is severe orafter oil change, follow the steps above for air exhaust.

3. Rising and lowering time control test

3.1 Engine runs in a fixed speed and the time for the fifth wheel to rise from the lowest to the highest positionis taken as the rising time while the time for the fifth wheel to lower from the highest to the lowest positionis taken as the lowering time.

3.2 Oil temperature: 40 ℃ or so (subject to the tank temperature display, low oil temperature will lead toslightly longer rising and lowering time).

3.3 No-load rising time: ≤ 20s, engine RPM 1100 ~ 1200 r / min;

No-load lowering time: ≤ 80s, engine idle speed (about 600 r / min).

4. Notes

4.1 Rising speed is related to engine RPM; the higher speed, the greater the pump flow rate and faster rising.

4.2 Lowering is not related to engine RPM, but to the loading capacity of the fifth wheel; generally speaking,the greater the loading capacity, the faster.

4.3 Lifting handle is the electronic control switch. When driving and parking, it must be in the middle place toavoid system working in the lowest or highest position for a long time. Make the handle to the middle position once limit is reached.


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IV. Special Device

1. Oil pump unit

The vehicle is equipped with external oil pump unit, without lifting the cab and it

will be accessible. See the diagram for the manual oil pumping position andoperations.

2. Hourly speedometer sensor

In replacement of the sensor, special attention shall be given to:

Manually tighten till it can not move, and then turn 3 / 4 to 1 lap back beforetightening with nuts.

3. Fuel tank oil gauge

After rotation in the direction of the arrow, the oil gauge can be pulled out.


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V. Vehicle Maintenance

(I) Oil change on a large assembly

Category Engine Transmission Rear AxleSteeringSystem

Cab LiftingSystem Notes

First checkup ※ ※ ※ ※ ※ Firstcheckupuponenginerunning

for 100hours

Routine checkup ※

Grade 1 maintenance ※

Grade 2 maintenance ※ ※ ※ ※ ※




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(II) Fuel, Lubricants and Filling Volume

Assembly Specified Grade Vol.(L)

EngineSummer: 0#-GB252-81/Winter: generally -10#

When temperature is below-20℃, use -20#

Engine SAE15W/40CD Grade diesel engine oil 23

Auto transmissionDEXRON III Automatic transmission oil, with GM certifiednumber 27

Manual transmission SAE85W/90GL-5 medium load gear oil 11

PR70 PTO SAE85W/90GL-5 medium load gear oil 1.5

Driveaxle

Main Reducer SAE85W/90GL-5 medium load gear oil 6.3

Wheel Reducer SAE85W/90GL-5 medium load gear oil(each side) 2.4

Balance Shaft Bearing SAE85W/90GL-5 medium load gear oil(each side) 1.6

Steering system 46＃anti-wearing hydraulic oil

or 41.4-50.6cst kinematics viscosity hydraulic oil

20

Saddle lift system 40

Cab lift pump N32 anti-wearing hydraulic oil 2.5

Radiator for cooling system Four-season repository heavy-duty anti-corrosion antifreeze 20

Chassis Common lithium-based grease Per demand

(III) Reg lar check items


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(III) Regular check items

1. Vehicle routine checkup and maintenance interval schedule Unit: Engine working for 10

hours

R o u t i n e c h e c k u p

G r a d e 1 m a i n t e n a n c e















40 80 120 160 200 240 280 320 360 400 440 480 520 560 600 640

680 720 760 800 840 880 920 960 1000 1040 1080 1120 1160 1200 1240 1280

1320 1360 1400 1440 1480 1520 1560 1600 1640 1680 1720 1760 1800 1840 1880 1920

1960 2000 2040 2080 2120 2160 2200 2240 2280 2320 2360 2400 2440 2480 2520 2560

2. Routine maintenance items

2.1 Check the parking brake and foot brake.

2.2 Check lighting and signal systems and lighting work conditions (oil pressure, air pressure cylinder, air filter

maintenance indicator, charging indicator, etc.).

2.3 Check tractor tire pressure and state.

2.4 Check engine oil, transmission hydraulic oil, coolant and fuel level.

2 5 Check steering hydraulic oil level oil temperature


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2.5 Check steering hydraulic oil level, oil temperature.

2.6 Check hydraulic transmission oil temperature.

2.7 Check tractor and trailer to see if coupling device status is normal.

2.8 Exhaust water from air cylinder.

3 All Grades Maintenance Items


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3. All Grades Maintenance Items

Engine

F

i r s t c h e c k u p

R o u t i n e

c h e c k u p

G r a d e 1

m

a i n t e n a n c e

G r a d e 2

m

a i n t e n a n c e

G r a d e 3

m

a i n t e n a n c e

G r a d e 4

m

a i n t e n a n c e

Replacement of engine oil (at least once 1 year) ※ ※ ※ ※ ※

Replacement of oil filter core ※ Each time when changing engine oil

Check adjustable valve clearance ※ ※ ※ ※

Check nozzle opening pressure ※

Replacement of fuel filter core ※ ※ ※

Clean primary fuel pump filter ※ ※ ※

Check coolant capacity and add sufficiently ※ ※ ※ ※ ※ ※ Replacement of coolant Every 24 months

Fastening cooling pipe clip ※

Fastening air inlet hose and flange connections ※ ※ ※ ※ ※

Check air filter clogging alarm switch ※ ※ ※ ※

Clean air filter dust cup ※ ※ ※ ※ ※

Clean main air filter core When the indicator lights up

Replacement of main air filter core When main air filter core damaged

Replacement of safety air filter core After cleaning main filter core 5 times

Check fastening triangle belt ※ ※ ※ ※ ※ ※

p


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Engine

F i r s t c h e c k u p

R o u t i n e

c h e c k u p

G r a d e 1

m a i n t e n a n c e

G r a d e 2


G r a d e 3


G r a d e 4


Check turbocharger bearing clearance ※ ※ Check fuel injection pump ※

Adjust idle speed ※

check the intercooler inlet pipe connection ※ ※ ※ ※ ※ ※

TransmissionSee info for transmission for transmission checkup andadjustment

Check transmission hydraulic oil level ※ ※ ※

Change transmission lubricant(at least once a year) ※ ※ ※ ※

Check transmission to cooler piping connection ※ ※ ※ ※

Check transmission oil temperature meter working condition ※ ※ ※ ※

Check throttle sensor working condition ※ ※ ※

Check transmission failure indicator working condition ※ ※ ※ ※ ※

p


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Driving Shaft


R o u t i n e

c h e c k u p

G r a d e 1


G r a d e 2


G r a d e 3


G r a d e 4


Retighten driving shaft bolts ※ Visual inspection driving shaft joints and wearing ※ ※ ※

Axle

Clean ventilation device ※ ※ ※ ※

Check and adjust hub bearing clearance When first Grade 2 maintenance is done

Check and adjust bearing clearance When first Grade 2 maintenance is done

Replacement of hub grease ※ ※

Cab

Check wiper action ※ ※ ※ ※ ※ ※

Check cab lifting oil pump oil level ※ ※ ※

Check lifting cylinder installation ※ ※ ※ ※ ※

Check hydraulic lock and shock absorber working condition ※ ※ ※

Check rear door lock operation ※ ※ ※

Check cab front turning point ※ ※ ※

p e e e e


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Chassis


R o u t i n e

c h e c k u p

G r a d e 1


G r a d e 2


G r a d e 3


G r a d e 4


Check front axle damper fixing ※ ※ ※ ※ ※ Check and adjust steel spring side baffle gap ※ ※ ※

Fasten front and rear leaf spring U-bolts and brackets ※ ※ ※ ※ ※

Check tire pressure ※ ※

Check traction device fixing ※ ※ ※ ※ ※

Check wheel nut fixing ※ ※ ※ ※ ※

Check battery, air cylinder fixing ※ ※ ※

Check fuel tank fixing ※ ※ ※ ※

Check fender fixing ※ ※ ※ ※


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Braking System F i r s t

c h e c k u p

R o u t i n e

c h e c k u p

G r a d e 1

m a i n t e n a n c

e

G r a d e 2

m a i n t e n a n c

e

G r a d e 3

m a i n t e n a n c

e

G r a d e 4

m a i n t e n a n c

e

Air cylinder water discharge ※ ※ ※ ※ ※ ※ Check air pressure system tightness ( check with pressuregauge

※ ※ ※ ※ ※

Clean dryer pressure regulator filter ※ ※ ※

Check thickness of brake lining, and adjust brake clearance ※ ※ ※

Clean wheel brake ※ ※

Check brake piping and hose for easy to scratches ※ ※ ※ ※

Check brake chamber function ※ ※ ※ ※ Check driving brake, parking brake and exhaust brake

performance (in trial run test)※ ※ ※ ※ ※


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Electrical F i r s t

c h e c k u p

R o u t i n e

c h e c k u p

G r a d e 1

m a i n t e n a n c

e

G r a d e 2

m a i n t e n a n c

e

G r a d e 3

m a i n t e n a n c

e

G r a d e 4

m a i n t e n a n c

e

Check tractor and trailer electrical systems (signal indicatorheadlight, width indicator, wiper, heater and ventilation

devices) working conditions※ ※ ※ ※ ※ ※

Check battery electrolyte level and specific gravity and battery voltage in each cell

※ ※ ※ ※ ※

Check battery terminal column fixing and apply grease onthe pole

※ ※ ※ ※ ※

Check accuracy of electronic tachometer speed ※ ※ ※ ※ ※ ※

Check accuracy of odometer ※ ※ ※ ※ ※ ※


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Steering System F i r s t

c h e c k u p

R o u t i n e

c h e c k u p

G r a d e 1

m a i n t e n a n c

e

G r a d e 2

m a i n t e n a n c

e

G r a d e 3

m a i n t e n a n c

e

G r a d e 4

m a i n t e n a n c

e

Check and adjust front wheel alignment ※ Check steering oil tank oil level ※ ※ ※ ※ ※

Replacement of steering oil tank filter ※ ※

Check steering oil piping connection ※

Check steering oil piping fixing ※

Check steering system function ※ ※


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Chassis


R o u t i n e

c h e c k u p

G r a d e 1


G r a d e 2


G r a d e 3


G r a d e 4


Check leakage of hydraulic pipe fittings Once a day

Check leakage of hydraulic cylinder Twice a week

Check or replace front cushion support of the journal Semi-annual

Check leakage of control valve Twice a week

For every 12 months, check the cab anti-rust performance. If necessary, carry out anti-rust

treatment.

(IV) Grease lubrication points


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(IV) Grease lubrication points

1. Lubricating points, rate and period

H: Engine motor hourly speedometer / hour

No. Lubricating Point Points Rate Cycle Remarks

1 Engine water pump 1 120g 400h/time

2 Main steering pin 2 Per demand 400h/time

3 Cab damper 3 Per demand Monthly

4 Cab hydraulic lock 1 Per demand Monthly

5 Cab lifting shaft 2 Per demand Monthly

6 Front axle brake arm 2 Per demand400h/time

7 Front axle brake camshaft 2 Per demand400h/time

8 Driving axle brake camshaft 2 Per demand400h/time

9 Cab door hinge 4 Per demand Semi-annual

No. Lubricating Point Points Rate Cycle Remarks


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10 Front suspension pin shaft 6 Per demand At least monthly

11 Driving shaft 3 Per demand Monthly

12

Front suspension shock

absorber 2 Per demand At least weekly

13 Hub Each 600g At least yearly

14 Fifth Wheel joint 1 Per demand Joint applied fully

15 Swing arm return point 2 Per demand

16Steel fifth wheel rotary

shaft2 Per demand

16 Fifth Wheel lift cylinder 4 Per demand

Notes: After cleaning vehicle, all lubricating points shall be greased again.

2. Lubricating points layout e e


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2.1 Lubricating points layout for 6 × 4 model

C a b l i f t i n g s h a f t

F r o n t a x l e c e n t e r l i n e D

r i v

i n g s h a f t c e n t e r l i n

D r i v

i n g s h a f t c e n t e r l i n

Transmission

Leaf spring pin

Engine water pump axis

Main steering pin

Steering pull rod

Shock absorber

Brake adjusting arm

Brake adjusting arm shaft

Driving shaft Brake adjusting armDriving shaft

2.1 Lubricating points layout for 4×2 model


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Swing arm return

shaft

C a b l i f t i n g s h a f t

F r o n t a x l e c e n t e r l i n e

Transmission

D r i v i n g s h a f t c e n t e r

l i n e

Leaf spring pin

Engine water pump axis

Main steering pin

Steering pull rod

Shock absorber

Brake adjusting arm

Brake adjusting arm shaft

Driving shaft Brake adjusting arm

Swing arm return shaft

Hydraulic cylinder lug shaft

Fifth wheel axis

(V) Electrical Device Functional Instructions


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( )

1. Electrical Board Instructions

Fuse:

F1 A ili hi h b F2 F t f l F3 Ri ht ki l F4 St i l F5 L ft k


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F1 Auxiliary high beam F2 Front fog lamp F3 Right parking lamp F4 Stopping lamp F5 Left parklamp F6 Right high beam lap F7 Left high beam lap F8 Right dipped lamp F9 Left dipped lamp F10Rear fog lamp F11 Dome lamp F12 Cigarette lighter F13 Flame preheating F14 Air dryer alarmingindicator F15 Reverse lamp F16 Dashboard indicator F17 Brake F18 Flash F19 Relay F20 Wiper

horn F21 Heater F22 A/C F23 Flame preheating (60A)

Relay:

1 heater motor 2 brake lamp 3 Standby 4 Horn 5 Wiper 6 Standby 7 Standby 8 Emergency steeringflash 9 Start 10 Headlamp 11 High beam lamp 12 Dipped lamp 13 Fog lamp

2. Onboard transformer operations

(1) Cab dashboard is preserved for 24V power cord, which is directly introduced from battery

wiring having no load; it can provide a stable voltage.

(2) Users who need 12V power supply can use the onboard transformer to convert 24V into

12V power supply.

(3) Transformers wiring methods:

The end with fuse is for 24V and grounding (Red for 24V, black for grounding);

The end without fuse is for 12V and grounding (Red for 12V, black for grounding)

VI. Electrical Principle Diagram


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p g

6.1 See the attached diagrams of the Instruction Manual for the vehicle electrical principle

diagrams.

VII. Brake Principle Diagram


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p g

4×2

1. Air pressure gauge 2 Main brake valve 3 Air horn 4.Button valve 5.Parking brake valve 6.Front axle brake chamber7.Air compressor 8.Main air inlet pipe 9.Spiral pipe 10.Trailer coupler 11.Oil cutoff cylinder 12.Air cylinder 13.Fifthwheel unlocking cylinder 14.Dual cavity brake chamber 15.Parking brake relay valve 16.Air cylinder 17.Foot brake relay

valve 18 Air cylinder 19.4-way return protection valve 20.Dryer 21.Butterfly valve switch cylinder 22.Trailer brake valve

23.Flameout switch

6×4


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1 Air pressure gauge 2 Main brake valve 3 Air horn 4 Parking brake valve 5 Front axle brake chamber 6 Air compressor

7. Main air inlet pipe 8.Spiral pipe 9.Trailer coupler 10.Oil cutoff cylinder 11. Magnet valve 12. Air cylinder13.Differential lock 14.Dual cavity brake chamber 15.Parking brake relay valve 16.Air cylinder 17.Foot brake relay valve 18.

Air cylinder 19. 4-way return protection valve 20.Dryer 21.Butterfly valve switch cylinder 22. Trailer brake valve 23Flameout switch

VIII. Fifth Wheel Lifting Hydraulic Device Principle Diagram


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1.2. Hydraulic cylinder with double-stage sleevesand synchronous action

3. Valve set

4. Check valve

5. Gear pump

6. Hydraulic oil tank

1.2. Hydraulic cylinder with dual action

3. Valve set


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3. Valve set

4. Check valve

5. Fully hydraulic steering gear EF port

6. Hydraulic oil tank

Low-speed Tractor Use and Maintenance Instructions

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Transcript of Low-speed Tractor Use and Maintenance Instructions