Xia Gong 822 excavator suddenly had no action

Sudden inaction of the excavator means: there is no sudden inaction during the operation, and the speed of the machine engine is normal. There are many reasons for this kind of failure, and there are roughly the following four aspects, which need to be checked and analyzed.

Reason 1: There may be hydraulic system reasons and circuit reasons.

1. The possible reasons for the hydraulic system are: there is a problem with the pilot pressure of the excavator and a problem with the overflow valve of the main oil system of the excavator. (Test the system pressure separately to see, if it is a pressure problem, adjust the overflow pressure separately to see if there is any change?)

If there is no change. The smallest problem is the problem of living the relief valve separately. Take it apart and wash it.

If it really doesn't work, change it. If it's a big question. It's just that the pump leaks too much.

The reason for the excavator circuit may be a circuit problem at the safety locking lever.

2 It may be that the pilot valve is blocked.

3 It could also be that there is a problem with the throttle motor and the speed sensor.

4. The safety valve on the multi-way valve of the excavator is too dirty, clean it.

5 Look at the pump control solenoid valve, two to tune or clean.

6. It may be that the main relief valve is stuck.

Reason 2: 1 The whole car does not move, mainly two parts, one is the coupling, first disassemble the oil pipe of the pilot pump to see if the fuel is injected after starting? If there is a problem with the circuit, check the pilot switch, pilot relay, pilot solenoid valve, etc., and the coupling is not broken.

2. The excavator suddenly did not move the whole car, and the possible reasons are: damage to the hydraulic parts. The control system is out of order. The hydraulic oil fails due to impurities and other reasons.

Reason 3: 1. The pilot solenoid valve of the excavator fails.

2. The safety solenoid valve is faulty, resulting in the whole vehicle of the Xiagong excavator not moving.

3 is that the coupling is broken.

4. The circuit contact is not good.

5. The hydraulic lock is broken, resulting in the excavator not moving.

6 circuit fuses burned.

Reason 4: 1. The elastic coupling shrapnel or the spline in the inner tooth sleeve is seriously worn.

2. The total gear, bearing or input shaft of the transfer gearbox is damaged, 3. The working oil volume is insufficient, the suction pipe is ruptured or seriously blocked, and 4. The hydraulic system is seriously blocked.

3 hydraulic main pumps failed at the same time.

5. The pilot pump is damaged, the pilot pressure regulator is damaged or improperly adjusted.

6. The hydraulic safety lock is damaged or closed.

7. The main relief valve is faulty, so that the pressure of the hydraulic system cannot go up.

Summary. Xia Gong 962 loader no action is the problem that the loader does not walk, is the transmission system failure, from the torque converter to the hydraulic gearbox troubleshooting, the torque converter is not faulty is the hydraulic gearbox O-shaped seal ring aging, the most common is only the fault of the cut-off valve, hang up the gear, oil engine, no movement (the loader does not move), mostly for the cut-off valve fault, of course, also check the mechanical transmission part, or forget the handbrake.

Xia Gong 962 loader no action is the problem that the loader does not walk, is the transmission system failure, from the torque converter to the hydraulic gearbox troubleshooting, the torque converter is troubleshooting is the hydraulic gearbox O-ring aging ring, the most common is just the fault of the cut-off valve, the key is hung on the gear, the oil engine, no movement (loading Qinshan machine does not move), mostly for the cut-off valve Mao manuscript Shouchang disease, of course, also check the mechanical transmission part, or forget the handbrake.

My 962 forklift has been out of power for a few days, and now I can't get a car, and I can't help me walk and move, what is the reason?

1. The most common is that the battery has no electricity. Solution: To change the socks is to change the battery, or use other vehicle batteries to connect the ignition.

2. The fuel filter screen is blocked, and there may be gas resistance in the fuel nuclear excavation pipeline. 3. The engine speed is not enough 4, the oil supply system is not on the top, and the gas car depends on whether the gas circuit is smooth. 5. The proportion of mixed gas is not good.

6. The ignition time is too early or postponed. 7. The original cause of the starter or the internal cause of the engine.