Gorman-Rupp Pumps 04C52-B 1399307 and up - Manual (Page 29)

0 SERIES OM-01233
MAINTENANCE & REPAIR PAGE E - 10
Refer to OPERATION, Section C, before putting
the pump back into service.
LUBRICATION
Seal Assembly
The seal assembly is lubricated by the medium be­
ing pumped and no additional lubrication is re­
quired.
Bearings
The pedestal was fully lubricated when shipped
from the factory. Under normal conditions, remove
the vented plug (16) and add 3 shots of No. 0 lith­
ium based grease from a grease gun through the
opening for the plug after each 250 hours of opera­
tion or once each month, whichever comes first.
Do not over‐lubricate. Over‐lubrication can cause
the bearing to over‐heat, resulting in premature
bearing failure. Clean and reinstall the vented plug.
If grease is forced out around the shaft as
new grease is added, the bearing cavity is
full and should be disassembled and
cleaned immediately.
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 pedestal, fill the cavity with
approximately 1/3 lb. (0.15 kg.) of grease.
For cold weather operation, consult the factory or a
lubricant supplier for the recommended grade of
lubricant.