Blohm + Voss Oil Tools 9PU-7200, Technical Documentation Manual, Page: 19 / 37

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Loosen a fitting in the main hydraulic pump discharge line to allow the air to be bled during
the priming procedure. When oil is present at the loosened coupling, and the line is free of
air, the coupling may be retightened.
Remove the plastic cover that shields the motor coupling.
Jog the motor once (DO NOT ALLOW THE PUMP TO RUN AT THIS TIME) and verify that
the direction of the rotation of the motor is consistent with the directional arrow tags on
the motor. If the direction is incorrect, have the electrician correct the motor wiring and
recheck.
Replace the plastic cover that shields the motor coupling.
Jog the motor three to six more times to ensure priming of the pump.
Start the motor and allow the pump to run with the compensator control ball valve in the
open position for several minutes. Once the unit has been unloaded, inspect the unit for
leaks and correct as needed.
Slowly close the compensator control valve and verify that system pressure is 2,650 PSI.
While running the FloorHand spinner motors, check the pressure filter indicator and the
return line filter indicator to ensure that they are not operating in the “BYPASS” mode.
Replace the filter elements as required.
After the FloorHand and the manipulator have been cycled to ensure that the entire system
is filled with fluid, top off the reservoir to the correct operating level.
The Hydraulic Power Unit is equipped with an explosion proof remote start/stop station to
be located within easy reach of the driller. After the initial installation/start-up procedure,
the Hydraulic Power Unit is normally started
and stopped using the buttons on the remote
start/stop station.
Note: Pressure and return filters are 10
micron. Both filter housings are equipped
with filter cleanliness/bypass indicators.
The power unit incorporates a low oil level
shut off switch, with sight glass (maximum
capacity, 110 gallons). DO NOT FILL
COMPLETELY.