OM-05512
SUPER T SERIES
MAINTENANCE & REPAIR
PAGE E - 11
necessary and keep personnel away
from suspended objects.
Use
Only Genuine Gorman-Rupp
re
placement parts. Failure to do so may cre
ate a hazard and damage the pump or di
minish optimal pump performance. Any
such hazard, damage or diminished per
formance is not covered by the warranty.
NOTE
When appropriate recycling facilities are available,
the user should recycle components and fluids
when doing any routine maintenance / repairs and
also at the end of the pump’s useful life. All other
components and fluids shall be disposed of ac
cording to all applicable codes and regulations.
Back Cover and Wear Plate Removal
(Figure 3)
The wear plate (23) is easily accessible and may be
serviced by removing the back cover assembly
(26). Before attempting to service the pump, re
move the pump casing drain plug (22) and drain
the pump. Clean and reinstall the drain plug.
It is not necessary to remove the inspection cover
(28) to service the wear plate (23). However, if the
O‐ring (27) requires replacement, remove the back
cover nuts (32) and pull the inspection cover out of
the back cover assembly (26). Replace the inspec
tion cover O‐ring and reinstall the inspection cover
in the back cover assembly.
Remove the back cover nuts (34) and pry the back
cover and assembled wear plate from the pump
casing (1).
NOTE
An alternate method of removing the back cover
from the pump casing is to remove the back cover
nuts (34) and two diagonally opposing locking col
lars (36). Install two 1/2-13 UNC x 2 inch long
screws in the tapped holes in the back cover and
use them to press the back cover out of the pump
casing.
Inspect the wear plate and replace it if badly scored
or worn. To remove the wear plate, disengage the
hardware (24 and 25).
Inspect the back cover O‐rings (18 and 19) and re
place them if damaged or worn.
Suction Check Valve Removal
(Figure 3)
If the check valve assembly (41) is to be serviced,
remove the check valve pin (39), reach through the
back cover opening and pull the complete assem
bly from the suction flange (38).
NOTE
Further disassembly of the check valve is not re
quired since it must be replaced as a complete unit.
Individual parts are not sold separately.
Separating Intermediate and Drive Assembly
From Engine
(Figure 5)
Further disassembly requires separating the pump
end and drive assembly from the engine. Install a
standard 5/8‐11 UNC lifting eye in the tapped hole
in the top of the pump casing.
Be sure
to screw the
eye into the casing until fully engaged. Support the
pump using a suitable hoist and the lifting eye.
Do not attempt to lift the complete pump
unit using the lifting eye. It is designed
to facilitate removal or installation of in
dividual components only. Additional
weight may result in damage to the
pump or failure of the eye bolt.
Remove the hardware securing the pump casing
to the base.
Disengage the hardware (6 and 7) securing the
drive flange to the engine bellhousing and remove
the guards (19, Figure 4). Separate the pump end
and drive assembly from the engine by pulling the
pump end straight away from the engine.
