Gorman-Rupp Pumps 16C2-F4L 1237525 thru 1319250 - Manual (Page 39)

OM−00725 10 SERIES
MAINTENANCE & REPAIR PAGE E − 15
cure it with the hardware (52 and 53). The wear
plate must be concentric to prevent binding when
the back cover is installed.
Clean any scale or debris from the contacting sur-
faces in the pump casing that might interfere or
prevent a good seal with the back cover. Replace
the back cover gasket (55) and slide the back
cover assembly into the pump casing. Be sure the
wear plate does not bind against the impeller.
NOTE
To ease future disassembly, apply a film of grease
or ‘Never-Seez’ on the back cover shoulder, or any
surface which contacts the pump casing. This ac-
tion will reduce rust and scale build-up.
Secure the back cover assembly by tightening the
cover clamp screw (61) against the clamp bar (62).
Do not over-tighten the clamp screw; it should be
just tight enough to ensure a good seal at the back
cover shoulder.
Final Pump Assembly
(Figure 1)
Install any leveling shims used under the pump
casing mounting feet and secure the casing to the
base (49) with the hardware (50, 51, 52 and 53). Be
sure the pump is secured to the base and engine.
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 end and engine have been
properly lubricated, see LUBRICATION.
Remove the fill cover assembly (23). Fill the pump
casing with clean liquid. Reinstall the fill cover plate
and gasket (27), and tighten the cover.
Refer to OPERATION, Section C, and start the
pump.
LUBRICATION
Seal Assembly
(Figure 2)
Fill the grease cup (17) 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 6).
GREASE
FITTING
CROSS
ARM
POSITION
WHEN
EMPTY
POSITION
FOR
FILLING
POSITION
WHEN
IN USE
RELIEF
HOLE
NOTE:
When installing a new grease cup, lubricate
the cup as indicated on the installation tag
furnished with the grease cup.
Figure 6. Automatic Lubricating Grease Cup