Pierce Pumper, Operation & Maintenance Manual

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MAINTENANCE
4-6 / Pierce Pumper
© 2019 Pierce Manufacturing Inc. All Rights Reserved.
4-8. Manual Pump Shift
Operate the manual pump shift control weekly to prevent build up of dirt, grime, and road debris that will inhibit the
smooth operation of the cable.
4-9. Intake & Discharge Relief Valve Drains
(Optional)
Figure 4-3: Relief Valve Drain
POM0032
Inlet and discharge relief valves can trap water inside the mechanism of the valve.
Drain trapped water from the valve daily, and before operating apparatus in freezing temperatures.
Frozen water will damage the valve.
4-10. Master Gauge Ports
Vacuum and pressure test ports are provided for use during the annual testing and certification of the pump.
1. Test master gauges annually.
• The VACUUM test port leads directly to the master intake gauge line.
• The PRESSURE test port leads directly to the master discharge gauge line.
• Use certified test gauges to check and calibrate master gauges.
Master gauge testing and calibration should only be performed by trained maintenance personnel.
NEVER remove plugs in these ports except for test purposes.