Gorman-Rupp Pumps 2D-E.50 3P 661275 thru 1467824 - Manual (Page 22)

D SERIES OM−01476
MAINTENANCE & REPAIR PAGE E − 6
PUMP 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.
NOTE
The Gorman-Rupp Gear Reducer (P/N
24572−003) used in this pump is a proprietary item
manufactured by Dayton Electric Manufacturing
Company as a special model.
If replacement is necessary, the complete gear re-
ducer must be ordered exclusively from The Gor-
man-Rupp Company. Gorman-Rupp does not
stock or furnish any component parts for the gear
reducer.
However, all component parts, except the output
shaft, are identical to those used in the non-propri-
etary Model 2Z934 Gear Reducer, and may be ob-
tained from W.W. Grainger Inc., 5959 W. Howard St.,
Chicago, Illinois 60077, (312)647−8900,
www.grainger.com, or from any full stock W.W.
Granger distributor. The Appendix at the end of this
section contains an illustrated parts list for the gear
reducer.
The output shaft is not available as a spare part ei-
ther from W.W. Grainger, Inc. or from Gorman-
Rupp. If the output shaft requires replacement, a
complete gear reducer must be ordered from The
Gorman-Rupp Company.
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.
Most service functions may be performed without
separating the pump and gearbox from the motor.
If major repair is required, the pump, gearbox and
motor must be disconnected.
Before attempting to service the pump, lock out
and tag out incoming power to the motor to ensure
that it will remain inoperative. Close all valves in the
suction and discharge lines.
For motor disassembly and repair, consult the lit-
erature supplied with the motor, or contact your lo-
cal motor representative.
Before attempting to open or service the
pump:
1. Familiarize yourself with this man-
ual.
2. Lock out and tag out incoming
power to the motor to ensure that
the pump will remain inoperative.
3. Allow the pump to completely cool
if overheated.
4. Drain the pump.
Before attempting to service the pump, drain the
pump by removing the drain plug (18, Figure 2).
Clean and reinstall the drain plug.
Suction and Discharge Check Valve Removal
(Figure 1)
To service the suction and discharge check valves,
remove the suction and discharge piping.
To service the suction check valve assembly (28),
remove the hardware (29) securing the suction
flange (30) and check valve assembly to the dia-
phragm pot (24). Pull the check valve assembly
from the suction port.
To service the discharge check valve assembly
(21), remove the hardware (19, 22 and 23) secur-