Gorman-Rupp Pumps 81 1/2B3-B 263741 and up - Manual (Page 30)

80 SERIES OM−00745
MAINTENANCE & REPAIR PAGE E − 10
ever comes first. Do not over-lubricate. Over-lu-
brication will cause the bearings to over-heat, re-
sulting in premature bearing failure.
If grease is forced out around the shaft or
bearings as new grease is added, the
bearing cavity is full and should be disas-
sembled and cleaned immediately.
After lubrication, clean and reinstall the vented
plug.
There are no provisions in the bearing cavity to
drain or flush the lubricant. The pump and pedestal
must be disassembled to completely clean and
maintain this cavity.
Under normal conditions, change the grease after
each 5000 hours of operation, or at 12 month inter-
vals, whichever comes first. Change the grease
more frequently if the pump is operated continu-
ously or installed in an environment where variable
hot and cold temperatures are common.
When lubricating a dry (overhauled) pedestal, fill
the cavity with approximately 1.5 ounces (42,5
grams) of grease
(approximately one-third full).
For cold weather operation, consult the factory or a
lubricant supplier for the recommended grade of
lubricant.
Power Source
Consult the literature supplied with the power
source, or contact your local power source repre-
sentative.