Troubleshooting of hydraulic cutting machine IX

- Feb 27, 2019-

Fault phenomenon:

motor oil pump noise


Failure analysis:

1. The oil pump rotates the rubber particles to wear

2. Filter plugging

3. Hydraulic oil loss

4. Oil pump bearing damage

5. Oil pump shaft end oil seal aging

6. Motor bearing damage


Method of exclusion:

1. Replace the rubber

2. Cleaning the filter

3. Add enough hydraulic oil

4. Replace the bearing

5. Replace the oil seal

6. Replace the bearing