Technical Manual
28
Figure 13: Motor Vent Plug
housing, illustrated in Error! Reference source not found., to allow all the
air to escape. Start pumping the oil into the compensator until oil begins to
run out the motor top vent plug. At this stage you should refit the vent plug,
ensuring it is fitted with a bonded washer. Clean any spilt oil off the gearbox
to prevent accidental contact with skin later on.
Continue to pump oil into the system, observing the status of the pressure
indicator. The compensator should be pressured until the piston has reached
the full extent of its travel, with the spring in full compression. This is signified
by approximately 75mm of indicator visible. At this point the hydraulic valve
should be closed, the pressure pump hose removed, and the plug replaced on
the valve. Finally check all the hydraulic fittings to ensure they are all tight.
Any further spilt oil should be cleaned up immediately to prevent the risk of
slipping or environmental contamination.
Operational Information
Where the compensator is disassembled, the o-rings should be checked to
ensure they are not damaged. It is important for the fastenings holding the
unit together to be tight.
Maintenance
NOTE:
Appropriate safe working practices should be followed to ensure that
all hazards are minimised.
When the system is in operation, the compensator should be washed down
with clean, salt-free water whenever it is returned to the deck of the ship. This
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