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On engine driven pumps, reduce the throttle speed slowly and allow the engine to idle briefly
before stopping.
Cold Weather Protection
If the pump is to remain idle during below freezing conditions, drain the pump to prevent
damage from freezing. Also, clean out any solids by flushing with a hose.
Bearing Temperature Check
Bearings normally run at higher than ambient temperatures because of heat generated by
friction. Temperatures up to 160º F (71º C) are considered normal for bearings, and they can
operate safely to at least 180º F (82º C).Measure bearing temperature with a contact-type
thermometer.
MAINTENANCE
Under normal conditions this pump is designed to run maintenance free, because of its rugged
construction, for extended periods of time. However, all centrifugal pumps contain wear parts
that will gradually deteriorate, affecting pump performance. This pump does contain wear
parts and these parts should be replaced as required to maintain optimum performance.
General maintenance can be performed without removing the pump from the driver. The
following instructions assume a complete disassembly of the pump is required.
The equipment covered in this section is limited to the pump components only. Refer to the
applicable vendor's manual for motors, engines and other accessory equipment. This manual
also provides a troubleshooting section to diagnose many operational or performance problems.
Use the troubleshooting section to help determine the cause of any problems, and only
disassemble the pump components required to remedy the problem condition.
Drain volute case of pumpage when pumping unit is idle to avoid freezing and possible thermal
cracking of pump case.
SPARE PARTS
Spare parts should be kept on hand to reduce downtime. At a minimum the following parts
should be stocked.
Wear Plate
All O-rings
Set of bearings
Mechanical seal
Set of grease seals
If you have unusual pumping conditions, consult Pioneer Pump, Inc. for additional
recommended spare parts.
When ordering parts from Pioneer Pump, Inc. please provide the following information:
1) Pump serial number
2) Pump model
13
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