Gorman-Rupp Pumps 88A2-F6L 1306307 thru 1341411 - Manual (Page 26)

OM−02720 80 SERIES
MAINTENANCE & REPAIR PAGE E − 7
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, 2 and 3) and the
accompanying parts lists.
As described on the following pages, this manual
will alert personnel to known procedures which re-
quire special attention, to those which could dam-
age equipment, and to those which could be dan-
gerous to personnel. However, this manual cannot
possibly anticipate and provide detailed precau-
tions for every situation that might occur during
maintenance of the unit. Therefore, it is the respon-
sibility of the owner/maintenance personnel to en-
sure that only safe, established maintenance pro-
cedures are used, and that any procedures not ad-
dressed in this manual are performed only after es-
tablishing that neither personal safety nor pump in-
tegrity are compromised by such practices.
Before attempting to service the pump, shut down
the engine and disconnect the positive battery
cable to ensure that the pump will remain inopera-
tive. 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 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 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 (39) and drain the pump.
Clean and reinstall the drain plug.
For access to the check valve, remove the suction
piping. Remove the nuts (45) and separate the
suction flange and gasket (54 and 55) from the
pump casing (1). Replace the suction flange gas-
ket as required.
Disengage the machine screws (46) and pull the
check valve seat (43), gasket (42) and check valve
assembly (48) from the suction port.
Inspect the check valve parts for wear or damage.
If replacement is required, remove the hardware
(49 and 50) and separate the check valve gasket
(51) and weights (52 and 53).
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.
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-