Gorman-Rupp Pumps 16C2-F4L 913960 thru 1013565 User Manual
Page 32
10 SERIES
OM−00725−06
MAINTENANCE & REPAIR
PAGE E − 14
PACKING RINGS
STATIONARY
SEAL SEAT
IMPELLER
SHAFT
SPRING
IMPELLER
ROTATING ELEMENT
STATIONARY WASHER
SEAL PLATE
PIPE NIPPLE
SEAL LINER
STATIONARY WASHER
SHAFT SLEEVE
IMPELLER
ADJ SHIMS
Figure 4. GS1500 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, seal liner, and the impeller
shaft for burrs or sharp corners, and remove any
that exist. Replace the seal liner (78) 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 (46) 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
installed, a 1/4 inch (6,35 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 onto the shaft until fully seated
against the intermediate. Align the threaded seal
lubricant hole with the intermediate opening and
temporarily secure the seal plate to the intermedi-
ate with two capscrews and nuts (1/2 UNC X 1−1/2
inch long, not supplied).
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
shaft sleeve. Apply a drop of light oil on the preci-
sion finished faces of the stationary seats; never
use grease. Slide the entire subassembly into the
lubricated seal liner until it bottoms against the in-
board rotating element.
Install the outboard rotating element with the
chamfered side facing the impeller.
Reinstall the automatic grease cup and piping (17,
18, and 19).
Lubricate the seal as indicated in LUBRICATION,
after the impeller has been installed.