Fault phenomenon (I): insufficient oil discharge and slow actuating mechanism

Cause:

1. The oil suction pipe and oil filter are blocked or the resistance is too large

2. The oil level of the oil tank is too low

3. The clearance between plunger and cylinder hole or between oil distribution plate and cylinder block is worn

4. The return stroke of the plunger is not enough or cannot travel at the same time, resulting in the loss of seal between the cylinder block and the oil distribution plate, which is caused by the fracture of the central spring

5. Variable mechanism fails to meet the working requirements

Magic weapon for removing obstacles:

1. Remove the oil pump blockage and clean the oil filter

2. Check the oil quantity and add oil properly

3. Replace the plug and repair the contact surface between the oil distribution plate and the cylinder block to ensure good contact

4. Check the central spring and replace it

5. Check the variable mechanism: check whether the variable piston and variable head are flexible, and correct the adjustment error

Fault phenomenon (II): insufficient oil discharge and slow actuating mechanism

Cause:

1. The oil suction port is blocked or the channel is small

2. The oil temperature is high, the oil privacy decreases, and the leakage increases

3. Wear between oil distribution plates of cylinder block, wear between plunger and cylinder block, and excessive internal leakage

4. The central spring is fatigued and the internal leakage increases

Magic weapon for removing obstacles:

1. Clear the piston phenomenon and increase the oil passage section

2. Control the oil temperature and replace the oil with large drilling degree

3. Repair the contact surface between the cylinder block and the oil distribution plate, replace the plunger, and send it to the factory for repair in serious cases

4. Replace the central spring