Gorman-Rupp Pumps 11 1/2A2-E2 1P 1046838 and up - Manual (Page 29)

10 SERIES OM-04092
MAINTENANCE & REPAIR PAGE E - 8
or `Never‐Seez' on the back cover shoulder, or any
surface that contacts the pump casing. This action
will reduce rust and scale build‐up.
Secure the back cover assembly by installing the
clamp bar (32) and tightening the clamp bar screw
(31). Do not over‐tighten the clamp bar screw; it
should be just tight enough to seal the back cover
shoulder.
Suction Check Valve Installation
Inspect the check valve components and replace
as required. Subassemble the check valve weights
(37 and 40) and check valve (36) using the attach­
ing hardware (38 and 39).
Position the check valve assembly (35) in the suc­
tion port with the large weight toward the inside of
the pump casing. Install the suction flange (4), and
secure with the nuts (42). Check the operation of
the check valve to ensure proper seating and free
movement.
Final Pump Assembly
Be sure the pump and motor are securely
mounted to the base.
Install the suction and discharge lines and open all
valves. Make certain that all piping connections are
tight, properly supported and secure.
Be sure the pump and motor have been properly
lubricated, see LUBRICATION.
Remove the fill plug assembly (6) and fill the pump
casing with clean liquid. Reinstall the fill plug and
tighten it.
Refer to OPERATION, Section C, before putting
the pump back into service.
LUBRICATION
Seal Assembly
Fill the grease cup (14) 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 3).
GREASE
FITTING
CROSS
ARM
POSITION
WHEN
EMPTY
POSITION
FOR
FILLING
POSITION
WHEN
IN USE
RELIEF
HOLE
Figure 3. Automatic Lubricating Grease Cup
Motor
Consult the literature supplied with the motor, or
contact your local motor representative.