Gorman-Rupp Pumps 03A52-B 1327255 and up - Manual (Page 29)

0 SERIES OM-01177
MAINTENANCE & REPAIR PAGE E - 10
add SAE No. 30 non‐detergent oil through the hole
for the air vent (16). Do not over‐lubricate. Over‐lu­
brication can cause the bearings to over‐heat, re­
sulting in premature bearing failure.
NOTE
The white reflector in the sight gauge must be posi­
tioned horizontally to provide proper drainage.
Under normal conditions, drain the bearing hous­
ing once each year and refill with clean oil. Change
the oil more frequently if the pump is operated con­
tinuously 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 for
the recommended grade of oil.