Gorman-Rupp Pumps 82D2-B 344003 and up - Manual (Page 28)

OM−00802 80 SERIES
MAINTENANCE & REPAIR PAGE E − 10
side of the pump casing. Install the suction flange
(33) and secure with the nuts (32). Check the oper-
ation 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 (41) 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 (6) 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. Under normal conditions, remove
the vented plug (9) and add one shot of No. 0 lithi-
um base grease from a grease gun after each 250
hours of operation or once each month, whichever
comes first. Do not over lubricate. Over lubrication
can cause the bearings to over heat, resulting in
premature bearing failure.
There are no provisions in the bearing cavity to
drain or flush the lubricant. The pump and pedestal
must be disassembled to completely clean and
maintain this cavity.
Under normal conditions, change the grease after
each 5000 hours of operation, or at 12 month inter-
vals, whichever comes first. Change the grease
more frequently if the pump is operated continu-