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4) Engine smoking abnormal
5) Engine overheat
2. Transmission system
1) Clutch slippage
Cause
Remedies
1.Engine overloaded
Lighten the load . If the matching of engine and
driven unit is inadequate ,correct it .
2.Black smoking becasue of second
compression ring fitted inversely or
oil scraper ring worn out badly
Refit the ring or change the oil scraper ring.
3.While smoke because of fuel
containing water , bad atomization of
fuel and low injection pressure
Ringse fuel tank and filter with filtered fuel.
Repair the nozzle assembly . Calibrate the
pressure
Cause
Remedies
1.Low tension of
v-belt
Adjust the tensionor change the
v-belt
2.Engine overheated
Lighten the load
3.High exhaust temperature because
of fuel delivery delayed or leakage of
fuel from injector
Repair the fuel delivery system
Cause
Remedies
1.Friction disc surfaces stained with
oil
Clean the surface with diesel , and eliminate
leakage points
2.Clutch pressing springs weakened
or broken
Replace the spring
3.Too short free travel or no free
travel of pedal , unidentical clearance
between release bearing and release
levers
Readjust pedal free travel according to
reqirements
4. Friction disc worn out or broken
Replace friction
disc
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2) Incomplete disengagement of
clutch and difficult shifting
3) Abnormal noise in gearbox
℃
4) Gearbox overheat (oil temperature is more than 90
)
3. Transmission system
1) Ineffective brake
Cause
Remedies
1.Excessive or too small free travel
Readjust according to requirements
2.Unidentical clearance between 3
release levers and release bearing
Readjust according to requirements
Cause
Remedies
1.Excessive wear or cracking of the
gear teeth faces
Replace gears
2.Gear teeth breakage
Replace gear
3.Bearing worn out excessively or
damaged
Replace
bearings
4.Improper meshing backlash of
main drive gears
Readjust it to required numerical valve
Cause
Remedies
1.Too small bearing clearance or
meshing clearance of bevel gears
Readjust to required mumerical value
2.Lack of oil
Fill lubrication oil to required level
3.Poor quality of oil
Clean with diesel ,add required lubricating oil
Cause
Remedies
1.Friction linings worn out excessively
Replace friction linings
2.Brake linings stained with oil
Clean brake linings with gasoline and
remove oil
leakage point
3.Adjust improperly
Readjust according to requirements
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2) Riding direction change with braking on both sides of driving wheel
3) Incomplete disengagement and generating heat
4. Steering gear and walking system
1) Difficult steering
2) Difficult steering
Cause
Remedies
1.Right and left brake pedal travel
different
Readjust brake pedal travel
2.One side of brake linings stained oil
Flush the stained linings with gasoline and
remove
3.Wear on right and left friction
linings unidentical
Adjust or replace friction linings
Cause
Remedies
1.Return spring of brake shoes
weakened
Replace spring
2.Too small clearance between brake
linings and drum
Adjust pedal free travel
Cause
Remedies
1.Excessive clearance between crankpin
and worm or steering screw worm and
nut
Readjust the clearance or replace the worn parts
2.Low inflation pressure in front tires
Inflate as specified
3. Insufficient oil supply of oil pump
Choose suitable oil pump or check the oil pump
4. Air in steering system
Remove air and check suck oil pipe
5. Fuel tank is not full
Fill to required level
Cause
Remedies
1. Inflation pressure of right and left
tyres not identical
Inflate as specified
2. Wear of the treads on left and right
tyres not identical
Replace with new tyres
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3) Oscillation of the front wheels
4) Early worn out of front wheel tyres
5. Hydraulic hitch system
1) Implements not being able to lower or lift
2) Fast still faling of implements
Cause
Remedies
1.Excessive clearance of tapered roller
bearing on front wheel or bearing worn
out
Readjust clearance or replace the bearing
2. Ball pins or joint seat worn out
Replace ball joint or ball joint seat
3. Pendulum shaft bush worn out
Replace bush
4. Steering knuckle shaft bush worn out
Replace shaft bush
Cause
Remedies
1. Improper adjustment of front toe-in
Readjust toe-in
2. Low inflation pressure of tyre
Inflate tyre to specified pressure
3. Driving wheel mounted reversely
Remount the driving wheel
Cause
Remedies
Adjusting valve locked
Loosen adjusting valve
Cause
Remedies
1. Cylinder and piston worn out
Check and repair or replace cylinder and
piston
2. Upper oil seal of piston damaged
Replace oil seal
3. Sliding valve of divider worn out
Replace divider
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