Gorman-Rupp Pumps 810A2-F5L 1322933 and up - Manual (Page 25)

80 SERIES OM−02396
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.
This manual will alert personnel to known proce-
dures which require special attention, to those
which could damage equipment, and to those
which could be dangerous to personnel. However,
this manual cannot possibly anticipate and provide
detailed precautions for every situation that might
occur during maintenance of the unit. Therefore, it
is the responsibility of the owner/maintenance per-
sonnel to ensure that only safe, established main-
tenance procedures are used, and that any proce-
dures not addressed in this manual are performed
only after establishing that neither personal safety
nor pump integrity are compromised by such prac-
tices.
Before attempting to service the pump, switch off
the engine ignition and disconnect the positive bat-
tery cable to ensure that the pump will remain inop-
erative. Close all valves in the suction and dis-
charge lines.
For engine disassembly and repair, consult the lit-
erature supplied with the engine, or contact your
local engine representative.
Before attempting to open or service the
pump:
1. Familiarize yourself with this man-
ual.
2. Switch off the engine ignition and
disconnect the positive battery
cable to ensure that the pump will
remain inoperative.
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.
Suction Check Valve Removal
(Figure 2)
Before attempting to service the pump, remove the
pump casing drain plug (43) and drain the pump.
Clean and reinstall the drain plug.
For access to the check valve (49), remove the suc-
tion piping. Remove the nuts (47) and separate the
suction flange (48) and gasket (45) from the pump
casing (1). Replace the suction flange gasket as re-
quired.
Pull the check valve seat (44) and check valve as-
sembly from the suction port.
Inspect the check valve parts for wear or damage.
If replacement is required, remove the hardware
(51 and 52) and separate the check valve gasket
(54) and weights (50 and 53).
Pump Disassembly
(Figure 2)
To service the wear plate (39), impeller (2), or seal
assembly (3), the pump casing (1) must be sepa-
rated from the base and intermediate (19). See Fig-
ure 1 and remove the hardware (49, 50, 51 and 52)
securing the pump casing to the base (48).
Support the pump casing using a suitable hoist
and sling. Remove the nuts (14) and separate the
pump casing and casing gasket set (12) from the
seal plate (36) and intermediate (19). Replace the
gasket set as required.
Tie and tag any leveling shims used under the
pump casing mounting feet to ease reassembly.
For ease of reassembly, tie and tag the gasket set
or measure and record their thickness.