Dump Truck Common Troubleshooting Methods
malfunction
cause of issue
Method of exclusion
Pump does not turn
Failure of power take-off or power take off solenoid valve
Repair or replace
Insufficient air pressure or air leakage
Inflate the air cylinder or check the leak
Pump failure
Repair or replace
The oil pump works well but the car is not lifting
Hydraulic system lacks hydraulic oil
Add hydraulic oil
Gear pump rotation is not correct
Replace the opposite direction
Lift solenoid valve failure
Repair or replace
Airline reversal or air leakage
Adjust the position of the trachea or check for leaks
Air-controlled distribution valve (or rotary valve) failure
Repair or replace
Cylinder internal fault
Repair or replace
Severe overload, internal relief valve overflow
Reasonable loading
Slow, unsteady lifting of the carriage, automatic tilting
Insufficient hydraulic oil, oil infiltrated the air
Add hydraulic oil, exhaust
Cylinder leakage or leakage
Repair or replace
Check valve (air-controlled distribution valve or oil pump outlet) damaged
Repair or replace
Air-controlled dispensing valve stuck or the internal leakage of the rotary valve is serious
Repair or replace
Slow or no drop after the carriage lifts
There is a leap in the tubing phenomenon
Straighten the oil pipeline to make the oil flow
Lift solenoid valve failure
Repair or replace
Air control valve or rotary valve failure
Repair or replace
Pump burned
The power take-off does not come off during driving and the oil pump works for a long time
Make sure the power take-off is off when driving
Raised the accelerator pedal for a long time and the cargo was heavily overloaded
Operate according to regulations
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