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

The Wire Loop Box will need to fixed to the formwork and the flexible folded wires will need to be pulled out to make a connection when ready on site. The load will be transferred from one concrete panel to the other panel via wire rope loop. High strength Galvanized Steel Wire Rope will need to be crimped by using compression sleeves / Ferrule to form a loop at one end & to transfer a load axially through other end. The load is transferred from one concrete panel to the other panel via wire rope loop.


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