Gorman-Rupp Pumps T3A71S-B /F,/FM - Manual (Page 38)

OM-05349 SUPER T SERIES
MAINTENANCE & REPAIR PAGE E - 16
LUBRICATION
Seal Assembly
(Figure 2)
Before starting the pump, remove the vented plug
(8) and fill the seal cavity with SAE No. 30 non‐de­
tergent oil to the middle of the sight gauge (28)
and
maintain it at the middle of the gauge. Clean and
reinstall the vented plug. Maintain the oil at this
level.
NOTE
The white reflector in the sight gauge must be posi­
tioned horizontally to provide proper drainage.
Bearings
(Figure 2)
The bearing housing was fully lubricated when
shipped from the factory. Check the oil level regu­
larly through the sight gauge (27)
and maintain it at
the middle of the gauge. When lubrication is re­
quired, add SAE No. 30 non‐detergent
oil through
the hole for the air vent (9). Do not over‐lubricate.
Over‐lubrication can cause the bearings to over‐
heat, resulting 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 or a
lubricant supplier for the recommended grade of
oil.
Power Source
Consult the literature supplied with the power
source, or contact your local power source repre­
sentative.