March 2014
Installation and Maintenance Manual
E-90090005 Rev. A
15
Section 6: Maintenance
Maintenance
3.
Remove the filter plug, spring, and filter in Handpump sub plate to observe
the backside of HP discharge. Check for leakage across and around it with high
pressure being applied.
4.
Remove the fitting and tubing or plug from module second vent port to
observe any oil leakage due to manifold porosity between the LP channel and
the Vent channel.
5.
Remove the operator inspection cover/plate and/or tubing from the Cylinder
plate port to observe any oil leakage across the Piston seal and the Piston
center O-ring.
In case of pumping problems, access to pump suction valve is gained by removing the
pump assembly from sub plate. Pumping difficulties usually result from dirty filter element,
contaminated oil (water, methanol), or incorrect fluid type.
Failure of the regulator is indicated by pressure on the LP Gauge (9) exceeding the setpoint
by more than 5 [psi].
2�
SCH Module Troubleshooting
Refer to IOM manual listed in Table 3.
(Operators and IOM Manuals) to assist in
troubleshooting the specific operator portion of BETTIS™ PressureGuard™.
Summary of Contents for Bettis PressureGuard
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