Troubleshooting
Problem
The bore drive head does not rotate.
Possible Cause
1. The hydraulic coupler is not completely
connected.
2. A hydraulic coupler is damaged.
3. There is an obstruction in a hydraulic
hose.
4. A hydraulic hose is kinked.
5. The auxiliary valve on the machine is
not opening.
6. A hydraulic motor is damaged or worn.
16
Corrective Action
1. Check and tighten all couplers.
2. Check the couplers and replace any
that are damaged.
3. Find and remove the obstruction.
4. Replace the kinked hose.
5. Repair the valve.
6. Replace or repair the motor.