1. The resistance value of the motor winding coil is normal; the shock absorber cannot be turned. The reason is the dry grinding caused by the aneroid operation, and the rotor shaft sleeve and the graphite bearing are stuck. Or stuck due to other mechanical failures. Treatment method, disassemble the shock absorber, clean the accessories, and find the fault point. Repair or replace parts.
2. There is no problem with the motor, but the running current is too large, because the conveying liquid is not enough. There is dry grinding. Or there is a mechanical fault and the motor end cover is tightened incorrectly. Approach. After decomposition. Clean and reassemble.
3. The running noise is very loud and the running current is also unstable. The reason is that the thrust plate of the rotor shaft sleeve and graphite bearings are severely worn. Disassemble the shock absorber. Clean and replace worn out originals. There is an excessive fit between the graphite bearing and the bearing end cover, and the bearing end cover must be heated before the graphite bearing can be removed or installed. Pay attention to the matching dimensions when assembling. Axial string momentum, the maximum wear amount shall not exceed
4. If there is a problem with the motor winding, as long as there is a problem with the shock absorber motor, the shock absorber must be overhauled.