Gorman-Rupp Pumps 03H1-GR 287634 and up - Manual (Page 28)

0 SERIES OM-01194
MAINTENANCE & REPAIR PAGE E - 8
during reassembly. This could result in premature
failure. If necessary to reuse an old seal in an emer­
gency, carefully wash all metallic parts in fresh
cleaning solvent and allow to dry thoroughly.
Handle the seal parts with extreme care to prevent
damage. Be careful not to contaminate precision
finished faces; even fingerprints on the faces can
shorten seal life. If necessary, clean the faces with a
non‐oil based solvent and a clean, lint‐free tissue.
Wipe lightly in a concentric pattern to avoid
scratching the faces.
Inspect the seal components for wear, scoring,
grooves, and other damage that might cause leak­
age. Clean and polish the shaft sleeve, or replace it
if there are nicks or cuts on either end. If any com­
ponents are worn, replace the complete seal;
never mix old and new seal parts.
If a replacement seal is being used, remove it from
the container and inspect the precision finished
faces to ensure that they are free of any foreign
matter.
To ease installation of the seal, lubricate the O‐
rings and shaft sleeve with water or a very small
amount of oil, and apply a drop of light lubricating
oil on the finished faces. Assemble the seal as fol­
lows, (see Figure E-3).
O‐RING
SHAFT
SLEEVE
SEAL PLATE
ROTATING
ELEMENT
BELLOWS
IMPELLER
IMPELLER
KEY
SPRING
SEAL GUARD
SLEEVE
O‐RING
DRIVE BAND
RETAINER
IMPELLER
SHAFT
STATIONARY
SEAT AND SEAL
Figure 3. 25271-192 Seal Assembly
This seal is not designed for operation at
temperatures above 160
_
F (71
_
C). Do not
use at higher operating temperatures.
Inspect the pinion shaft (2, Figure 2) for distortion,
nicks, scratches, or damage to the shaft keyway.
Dress small nicks or burrs with a fine file or emery
cloth. If excessive wear exists, refer to GEARBOX
DISASSEMBLY and replace the shaft.
Lightly lubricate the shaft sleeve O‐ring (17) and in­
stall it on the shaft.
Lubricate the stationary seat O‐ring with light oil
and install it in the groove in the seat. Use thumb
pressure to press this subassembly into the seal
plate until it seats squarely against the shoulder