Gorman-Rupp Pumps 12B9-B 723228 and up - Manual (Page 34)

OM-00582 10 SERIES
MAINTENANCE & REPAIR PAGE E - 11
LUBRICATION
Bearings
The pedestal was fully lubricated when shipped
from the factory. Check the oil level regularly
through the sight gauge (26) and maintain it at the
middle of the gauge. When lubrication is required,
add SAE No. 30 non‐detergent oil through the hole
for the air vent (14). Do not over‐lubricate. Over‐lu­
brication can cause the bearings to over‐heat, re­
sulting in premature bearing failure.
Under normal conditions, drain the pedestal once
each year and refill with clean oil to the middle of
the sight gauge. Change the oil more frequently if
the pump is operated continuously or installed in
an environment with rapid temperature change.
Monitor the condition of the bearing lubri­
cant regularly for evidence of rust or mois­
ture condensation. This is especially im­
portant in areas where variable hot and
cold temperatures are common.
For cold weather operation, consult the factory or a
lubricant supplier for the recommended grade of
oil.
Seal Assembly
The seal assembly is lubricated by the medium be­
ing pumped. No additional lubrication is required.
Power Source
Consult the literature supplied with the power
source, or contact your local power source repre­
sentative.