| Problem | Cause | Correction |
| Pump notdelivering oil,cylinder does not advance | Low hydraulic oil in reservoir | Check oil level and add hydraulic oil if necessary. |
| Low quality oil, pump nuzzle blocked. | Change qualified oil and flush the oil tube. | |
| Seat inside the check valve worn or leak | Loose screws and spring, knock the steel shot with proper tool and recreate sealing. | |
| Unusual loud and sharp noise from the pipe when grooving. | Wrong position of pipe stand with long pipe causes echo | Relocate the pipe stand to right or left. |
| Pipe end not square cut with pipe axis.Pipe end scratch the drive shaft plate | Cut pipe end square | |
| Excessive friction between pipe and drive roll. | Apply a thin coat of grease on pipe end. | |
| Pipe will not trach while grooving | Pipe not level. | Adjust stand to level pipe. |
| Stabilizer wheel not engaging pipe | Offset pipe 1°-2°and tight the stabilizer again. | |
| Groover not level. | Level groover | |
| Pipe rocks from side to side | lmproper setup of pipe stand. | Adjust the pipe stand location, direction and height. |
| Pipe end flattened or damaged | Cut off damaged pipe end or grind flat. |
The “Maintenance Instructions” will take care of most of the service needs of the hydraulic pipe grooving machine. Any problems not addressed by this section should only be handled by an authorized service technician. the roll grooving machine should be taken to a Independent Authorized Service Center or returned to the factory. When servicing the pipe groover, only identical replacement parts should be used. Use of other parts may create a risk of serious injury. If you have any questions.
regarding the service or repair of the hydraulic electric roll groove machine, please email to:amy@welping.cn
