Gorman-Rupp Pumps 16C2-F5L 1338631 and up - Manual (Page 29)

10 SERIES OM−01876
MAINTENANCE & REPAIR PAGE E − 8
Inspect the wear plate and replace it if badly scored
or worn. To remove the wear plate, disengage the
hardware (52 and 53).
Suction Check Valve Removal
(Figure 2)
If the check valve assembly (73) is to be serviced,
reach through the back cover opening and hold
the assembly in place while removing the check
valve pin (74). Slide the assembly out of the check
valve seat (65) and remove it from the pump.
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.
The check valve assembly may also be serviced by
removing the suction flange (70). To remove the
flange, disengage the hardware (68 and 69) and
separate the flange from the check valve seat. Re-
move the machine screws (66) and pull the seat
and assembled check valve from the suction port.
Remove the check valve pin and pull the check
valve assembly out of the seat.
Replace the flange gaskets (64 and 67) as re-
quired.
Separating Pump and Intermediate From
Engine
(Figure 3)
If the impeller or seal assembly require replace-
ment, the pump end and drive assembly must be
separated from the engine.
Disconnect the discharge piping. Support the
pump using a suitable hoist and sling. Remove the
hardware (48, 49, 50 and 51, Figure 1) securing the
pump casing to the base.
Use lifting and moving equipment in
good repair and with adequate capacity
to prevent injuries to personnel or dam-
age to equipment. Suction and dis-
charge hoses and piping must be re-
moved from the pump before lifting.
Disengage the hardware (6 and 7) securing the
drive assembly to the intermediate. Separate the
pump end and drive assembly from the engine by
pulling the pump end straight away from the en-
gine.
As the assemblies separate, the flexible portion of
the coupling assembly (3) will remain on the shaft.
To remove the coupling from the shaft, unscrew the
two allen head setscrews from the bushing (2).
Screw one of the setscrews into the puller hole on
the circumference of the bushing. As the coupling
and bushing separate, remove the bushing, and
slide the coupling off the shaft. Remove the shaft
key (41, Figure 2).
It is not necessary to remove the outer ring of the
coupling from the engine flywheel unless the cou-
pling must be replaced. To remove the ring, disen-
gage the hardware (4 and 5) securing it to the fly-
wheel.
Remove any leveling shims used under the casing
mounting feet. Tie and tag the shims for ease of
reassembly.
Move the pump end to a clean, well equipped shop
area for further disassembly.
Loosening Impeller
(Figure 2)
Before loosening the impeller, turn the cross arm
on the automatic lubricating grease cup (17) clock-
wise until it rests against the cover (see Figure 6 in
LUBRICATION). This will prevent the grease in the
cup from escaping when the impeller is removed.
Reach through the back cover port and wedge a
block of wood between the vanes of the impeller
and the pump casing to prevent rotation.
If removed, install the shaft key (41) in the shaft
keyway. Install a lathe dog on the drive end of the