Model 30000-S DHPU Manual
Rev. 0
JRK
17SEP12
Page 21
Verify that all operations that the power unit is driving are complete. Do not
shutdown while equipment is working.
Do not stop the engine when it is running at full load. Instead, allow the engine to
cool down by letting it at idle speed for some time.
Figure 14: Shut Down Lever
Storage
Follow the steps below when removing the power unit from operation.
Stop the diesel engine.
Disconnect the pressure and return lines from the power unit and from the tong.
Install the dust plugs and caps onto the exposed quick disconnects. Coil the hydraulic
lines and place them into the storage basket on the lift frame.
Move the power unit to its storage location.
Clean and remove all debris from the power unit. Afterwards, inspect the unit for any
damage. Address all problems identified.
Perform any required routine maintenance on the power unit.
Troubleshooting
The following table addresses possible solutions to problems that may occur during
operation. When a problem occurs, take note of the problem as well as the operation being
performed when the malfunction happened. Also, note if there has been any recent
maintenance or adjustments to the power unit. All these items will be helpful in diagnosing
the problem. Use the problem information to search the following tables of symptoms to
troubleshoot the hydraulic power unit. Always follow safety guidelines while
troubleshooting the unit.
