Gorman-Rupp Pumps 810A2-4045T 1529947 and up - Manual (Page 28)

80 SERIES OM-06543
MAINTENANCE & REPAIR PAGE E - 8
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 illustrations (see Figures 1 through 3) 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 remove the key 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 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.
Use lifting and moving equipment in
good repair and with adequate capacity
to prevent injuries to personnel or dam­
age to equipment. The bail is intended
for use in lifting the pump assembly
only. Suction and discharge hoses and
piping must be removed from the pump
before lifting.
Suction Check Valve Removal
(Figure 3)
Before attempting to service the pump, remove the
pump casing drain plugs (35 and 45) and drain the
pump. Clean and reinstall the drain plugs.
For access to the check valve, remove the suction
piping. Remove the nuts (49) and separate the
suction flange (50) and gasket (47) from the pump
casing (1). Replace the suction flange gasket as re­
quired.
Pull the check valve seat (46) and check valve as­
sembly (51) from the suction port.
Inspect the check valve parts for wear or damage.
If replacement is required, remove the hardware
(53 and 54) and separate the check valve (56) and
weights (52 and 55).
Pump Disassembly
(Figure 3)
To service the impeller (2), seal assembly (3), wear
plate (41) or seal plate (36), the pump casing (1)