Gorman-Rupp Pumps 14C2-4024T 1317426 and up - Manual (Page 31)

OM−05780 10 SERIES
MAINTENANCE & REPAIR PAGE E − 9
Turn
Counterclockwise
Lathe Dog Arm
V" Notch
Shaft Key
Impeller
Shaft
Lathe Dog
Setscrew
Heavy
Bar Stock
Figure E−4. Loosening Impeller
Removing Intermediate
(Figure E−2)
Position the pump on the work surface with the
drive end of the impeller shaft facing up. Install
three hooks, equally spaced, in the mounting
holes in the intermediate. Use a sling and suitable
lifting device to support the intermediate.
Remove the nuts (38) securing the pump casing to
the intermediate (19). Use the hoist and sling to
separate the intermediate and rotating portion of
the pump from the pump casing.
Remove the pump casing gaskets (39). Tie and tag
the gaskets, or measure and record their thickness
for ease of reassembly.
Impeller Removal
(Figure E−2)
With the impeller loosened, unscrew it from the
shaft. Use caution when removing the impeller;
tension on the shaft seal spring will be released as
the impeller is unscrewed. Inspect the impeller and
replace if cracked or badly worn.
Slide the impeller adjusting shims (76) off the im-
peller shaft. Tie and tag the shims, or measure and
record their thickness for ease of reassembly.
Seal Removal and Disassembly
(Figure E−2)
To remove the seal assembly (3), remove the
grease cup and piping (13, 15 and 16) from the
seal plate (34). Remove the seal spacer washer
(75) from the shaft. Remove the hardware (35 and
36) and slide the seal plate and seal parts off the
shaft as a single unit. Be careful not to drop or
damage any seal parts. Remove the seal plate gas-
ket (40).
Carefully remove the stationary and rotating seal
elements, packing rings, seal spring, and shaft
sleeve from the seal plate.
NOTE
The seal assembly may be removed without com-
pletely disassembling the pump by removing the
impeller through the back cover opening and using
a pair of stiff wires with hooked ends to pull the seal
parts out of the seal plate.