Gorman-Rupp Pumps 82H2-B 716064 and up - Manual (Page 28)

OM−00828 80 SERIES
MAINTENANCE & REPAIR PAGE E − 10
secure with the nuts (41). Check the operation of
the check valve to ensure proper seating and free
movement.
Final Pump Assembly
Be sure the pump and power source are securely
mounted to the base. Reconnect the power source
to the pump.
Install the suction and discharge lines and open all
valves. Make certain that all piping connections are
tight, properly supported and secure.
If a lifting eye was used to move the pump casing,
be sure to remove the lifting eye from the pump
casing.
Be sure the pump and power source have been
properly lubricated, see LUBRICATION.
Fill the pump casing with clean liquid. Reinstall the
fill plug (49) and tighten it.
Refer to OPERATION, Section C, before putting
the pump back into service.
LUBRICATION
Seal Assembly
(Figures 1 and 4)
Fill the grease cup (4) 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
Bearings
The pedestal was fully lubricated when shipped
from the factory. Check the oil level regularly
through the sight gauge (23) 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 (11). 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.