Gorman-Rupp Pumps 14D1-GX390 1142746 thru 1325667 - Manual (Page 23)

10 SERIES OM−04529
MAINTENANCE & REPAIR PAGE E − 6
PUMP AND SEAL DISASSEMBLY
AND REASSEMBLY
Review all SAFETY information in Section A.
Follow the instructions on all tags, label and de-
cals attached to the pump.
This pump requires little service due to its rugged,
minimum-maintenance design. However, if it be-
comes necessary to inspect or replace the wearing
parts, follow these instructions which are keyed to
the sectional views (see Figures 1 and 2) and the
accompanying parts lists.
Before attempting to service the pump, shut down
the engine and disconnect the spark plug wire to
ensure that it will remain inoperative. Close all
valves in the suction and discharge lines.
For engine disassembly and repair, consult the lit-
erature supplied with the engine, or contact your
local Honda engine representative.
Before attempting to open or service the
pump:
1. Familiarize yourself with this man-
ual.
2. Shut down the engine and discon-
nect the spark plug wire to ensure
that the pump will remain inopera-
tive.
3. Allow the pump to completely cool
if overheated.
4. Check the temperature before
opening any covers, plates, or
plugs.
5. Close the suction and discharge
valves.
6. Vent the pump slowly and cau-
tiously.
7. Drain the pump.
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.
Suction Check Valve Disassembly
(Figure 2)
Before attempting to service the pump, remove the
pump casing drain plug (18) and drain the pump.
Clean and reinstall the drain plug.
To service the suction check valve, remove the suc-
tion piping. Remove the nuts (5) securing the suc-
tion flange (35) to the pump casing (1). Pull the
check valve assembly (29) from the suction port.
Remove the hardware (31 and 32) securing the
check valve weights (30 and 33) to the check valve
(34).
If no further disassembly is required, see Suction
Check Valve Installation.
Back Cover Removal
(Figure 2)
The wear plate assembly (15) can be serviced after
the back cover assembly (23) has been removed.
Remove the wing nuts and flat washers (21 and 22)
securing the back cover to the casing. Pull the
back cover and assembled wear plate from the
pump casing. Remove the cover plate gasket (19)
and clean the mating surfaces.
Inspect the wear plate and if replacement is re-
quired, remove the hardware (16 and 17) securing
it to the back cover.
Pump Casing Removal
(Figure 2)
To service the impeller or seal assembly, discon-
nect the discharge piping. See Figure 1 and re-
move the hardware (12, 13, 14 and 15) securing
the pump casing to the base (3).