Construction Truck

1) Check the state of hydraulic oil to see if the oil is too dirty;

2) The accelerator cable is too loose;

3) Check the amount of hydraulic oil. If the oil level is low, add hydraulic oil to the specified level;

4) Check whether the hydraulic pump pressure is too low.

The main reason is that the air pressure is insufficient, the oil return valve of the distribution valve cannot act, or the limit valve pipeline is damaged, and the lift switch and cylinder are stuck.

Treatment: the pipe blockage of pump truck is a worldwide problem, and the common cause is caused by non-standard operation.

1) Check the pressure system for insufficient pressure;

2) The proportion of raw materials is not correct, and the proportion of sand, stone and cement is uneven, resulting in unclear pumping and changing the proportion.

If the operation is improper, the normal shutdown shall not exceed 2 hours (the specific time shall be adjusted according to the material ratio). If the time exceeds the specified time, it needs to be cleaned.

The volumetric efficiency of the winch plunger oil motor decreases. Replace the winch plunger oil and motor.

The volumetric efficiency of the winch motor decreases and the friction brake pad in the winch gearbox is damaged. Replace the friction brake pad and the motor.