Gorman-Rupp Pumps 14C2-F3L 1319322 and up - Manual (Page 35)

OM−00675 10 SERIES
MAINTENANCE & REPAIR PAGE E − 13
IMPELLER SHAFT
SEAL
PLATE
SEAL
LINER
IMPELLER
IMPELLER
SHIMS
GREASE
CUP
PIPING
SPACER
SLEEVE
PACKING
RINGS
STATIONARY
ROTATING
ELEMENTS
STATIONARY
SPRING
SEAL SEATS
WASHERS
WASHER
Figure 5. GS1250 Seal Assembly
This seal is not designed for operation at
temperatures above 110
_F (43_C). Do not
use at higher operating temperatures.
Inspect the seal plate (34), seal liner (74), and the
impeller shaft for burrs or sharp corners, and re-
move any that exist. Replace the seal liner if wear or
grooves exist which could cause leakage or dam-
age to the seal packing rings. To replace the seal
liner, position the seal plate on the bed of an arbor
(or hydraulic) press, and use a new sleeve to force
the old one out. After the new liner is properly in-
stalled, a 1/4-inch (6,4 mm) diameter hole must
drilled through it to permit the flow of lubricant to
the seal assembly. Be careful to center the drill in
the threaded grease pipe hole and not damage the
threads. Deburr the hole from the inside of the seal
liner after drilling.
Slide the seal plate and gasket (40) onto the shaft
until fully seated against the intermediate. Align the
threaded seal lubricant hole with the intermediate
opening, and secure the seal plate to the interme-
diate with the hardware (35 and 36).
Install the inboard rotating element with the cham-
fered side facing the shaft shoulder. Subassemble
the stationary seal seats, packing rings, stationary
washers, and spring onto the lubricated shaft
sleeve. Apply a drop of light oil on the precision fin-
ished faces of the stationary seats; never use
grease. Slide the entire subassembly into the lubri-
cated seal liner until it bottoms against the inboard
rotating element.
Install the outboard rotating element with the
chamfered side facing the impeller. Position the
seal spacer washer (75) on the shaft with the
chamfered side toward the shaft shoulder, and
slide it onto the shaft until fully seated.
Reinstall the automatic grease cup and piping (13,
14, 15 and 16).
Lubricate the seal as indicated in LUBRICATION,
after the impeller has been installed.