Gorman-Rupp Pumps T10A61S-B /FM - Manual (Page 37)

OM-05444 SUPER T SERIES
MAINTENANCE & REPAIR PAGE E - 15
been specified or provided by the Gorman‐Rupp
Company.
Periodically, the valve should be removed for in­
spection and cleaning. When reinstalling the relief
valve, apply `Loctite Pipe Sealant With Teflon No.
592', or equivalent compound, on the relief valve
threads. Position the valve as shown in Figure E‐1,
with the discharge port pointing down.
LUBRICATION
Seal Assembly
(Figure E‐2)
Check the oil level regularly through the sight
gauge (26)
and maintain it at the middle of the
gauge. When lubrication is required, remove the
vented plug (10) and add SAE No. 30 non‐deter­
gent
oil through the hole until the level is at the
middle of the sight gauge.
NOTE
The white reflector in the sight gauge must be posi­
tioned horizontally to provide proper drainage.
Bearings
(Figure E‐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, remove the air vent and bushing (11 and
12) and add SAE No. 30 non‐detergent
oil through
the hole until the level is at the middle of the sight
gauge. Do not over‐lubricate. Over‐lubrication can
cause the bearings to over‐heat, resulting in pre­
mature 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.