Gorman-Rupp Pumps PA6C60C-B-E50 460/3 1528569 and up - Manual (Page 51)

PA SERIES OM-06531
MAINTENANCE & REPAIR PAGE E - 24
reinstall the vented plug. Maintain the oil level at the
middle of the sight gauge.
Bearings
(Figure 4)
The bearing housing was fully lubricated when
shipped from the factory. Check the oil level regu­
larly through the sight gauge (23)
and maintain it at
the midpoint of the gauge. When lubrication is re­
quired, remove the air vent (6) and add SAE No. 30
non‐detergent oil through the opening. When lubri­
cating a dry (overhauled) intermediate, fill the bear­
ing cavity with approximately 40 ounces (1,2 liter).
Clean and reinstall the air vent. Do not over‐lubri­
cate. 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.