Neptune 5000
© Copyright Datem Limited 2014
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Figure 12: Pressure Compensator Connections
Ensure that the handle of the hydraulic valve fitted to the compensator is
horizontal (shown above), and hence turned off. Remove the blanking plug
that is located in the top of the hydraulic valve. Fit a drain hose to the outlet
of the hydraulic valve, and place the other end in an appropriately sized
receptacle, placed below the level of the compensator. Slowly open the
hydraulic valve. As the valve opens the oil should flow from the compensator.
The process is complete when the white coloured marker protruding from the
bottom of the compensator is barely visible, and the oil has ceased to flow
from the assembly. With the pressure released, any work carried out on the
compensator or motor requires the remaining oil to be drained from the
appropriate item.
Pressurisation
It is highly recommended to wear personal protective equipment
during the pressurisation process, in particular overalls and safety
glasses. Appropriate precautions should be taken to avoid all contact
with the oil in the pressurised system.
When pressurising the system, firstly check that all the hydraulic fittings are
tight. Fill a pressure pump with the correct oil, and attach it to the hydraulic
valve using a suitable hose. Remove the vent plug from the top of the motor
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