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Lubrication – Gorman-Rupp Pumps 83A2-B 732174 and up User Manual

Page 31

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80 SERIES

OM−00856

MAINTENANCE & REPAIR

PAGE E − 10

LUBRICATION

Seal Assembly

Fill the grease cup (9) through the grease fitting
with No. 2 lithium base grease until grease es-

capes from the relief hole. Turn the grease cup arm
counterclockwise until it is at the top of the stem;
this will release the spring to apply grease to the
seal (see Figure 4).

GREASE

FITTING

CROSS

ARM

POSITION

WHEN

EMPTY

POSITION

FOR

FILLING

POSITION

WHEN

IN USE

RELIEF

HOLE

Figure 4. Automatic Lubricating Grease Cup

NOTE

Some smoking and leakage may occur after instal-
ling a new seal assembly. This should stop after the
pump has run a while and the lapped seal faces
have seated in.

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.

NOTE

The white reflector in the sight gauge must be posi-
tioned horizontally to provide proper drainage.

Under normal conditions, change the oil each
5000 hours or once each year, 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.

Power Source

Consult the literature supplied with the power
source, or contact your local power source repre-
sentative.