Lubrication; Priming - Pioneer PB Series Operation & Maintenance Manual

WARNING!!!
This pump is designed to handle most non-volatile, non-flammable liquids containing specified
entrained solids and corrosives. Do not attempt to pump volatile, corrosive, or flammable
liquids that may damage the pump or endanger personnel as a result of pump failure.
CAUTION!!!
Pump speed and operating condition points must be within the continuous performance range
shown on the Performance Curve in the separate Part List Manual for your specific pump
model.

LUBRICATION

This pump is oil lubricated. The bearing housing contains an oil cavity for lubricating the
bearings and an oil cavity for lubricating the mechanical seal in case the pump runs dry. The
sight gauge on the side of the bearing housing should read half full to indicate the bearings
have the correct amount of oil.

PRIMING

This pump is self-priming, but the pump should never be operated without liquid in the pump
casing. The pump casing needs to be half filled with liquid in order to prime.
CAUTION!!!
The pump will not prime when dry. Extended operation of a dry pump will destroy the seal
assembly. Make sure pump casing is half filled with liquid when priming.
Add liquid to the pump casing when:
1. The liquid in the pump casing is low.
2. The pump has not been used to an extended period of time.
3. The pump is being put into service for the first time.
Once the pump casing has been filled, the pump will prime and re-prime as necessary.
WARNING!!!
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