Gorman-Rupp Pumps UNIT 608 1347755 thru 1395613 - Manual (Page 33)

OM−01228 UNIT SERIES
MAINTENANCE & REPAIR PAGE E − 13
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.
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, disconnect
the power source to ensure that the pump will re-
main inoperative. Close all valves in the suction
and discharge lines.
For motor service and repair, consult the literature
supplied with the motor, or contact your local motor
representative.
Before attempting to open or service the
pump:
1. Familiarize yourself with this man-
ual.
2. Unplug the motor 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. Vent the pump slowly and cau-
tiously.
6. Drain the pump.
Before operating or servicing the pump,
be certain proper safety practices are
followed. Provide adequate ventilation,
prohibit smoking, wear static-resistant
clothing and shoes. Clean up all fuel
spills immediately after occurrence.
Pump Disassembly
(Figure 2)
Before attempting to service the pump, remove the
pump housing drain plug (16) and drain the pump.
Clean and reinstall the drain plug.
If installed, disconnect the suction and discharge
hoses from the pump. See Figure 1 and and install
the dust cap (10) and dust plug (17) to protect the
suction and discharge ports from damage or con-
tamination. Unscrew the hose assembly (5) from
the elbow (3).
To service the impeller (2), seal assembly (3), or va-
ne plate (15), the pump casing (1) must be sepa-
rated from the intermediate (6). See Figure 1 and
remove the hardware (51, 52 and 53) securing the
pump casing to the base (33).
Remove the nuts (8) and separate the pump cas-
ing and gasket (5) from the intermediate bracket
(6).
It is not necessary to remove the piping for the
eductor (2, Figure 1) from the pump casing unless
the eductor requires service. If the eductor re-
quires service, disengage only enough piping to
allow removal of the eductor.
Impeller Removal
(Figure 2)
For access to the impeller (2), disengage the ma-
chine screws (9) and remove the vane plate (15).