Gorman-Rupp Pumps 04A52-B 1326393 and up - Manual (Page 27)

0 SERIES OM-01231
MAINTENANCE & REPAIR PAGE E - 8
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. Discard the spring centering washer in­
cluded with the seal. It is not used in this applica­
tion. To ease installation of the seal, lubricate the bel­
lows and O‐rings with water or a very small
amount of light lubricating oil, and apply a drop of
light lubricating oil on the finished faces. Assemble
the seal as follows, (see Figure 2).
IMPELLER
SHAFT
SEAL
PLATE
ROTATING
ELEMENT
RETAINER
SPRING
IMPELLER
ADJUSTING
SHIMS
IMPELLER
BELLOWS
SHAFT
SLEEVE
O‐RING
STATIONARY
SEAT
Figure 2. Seal Assembly
This seal is not designed for operation at
temperatures above 160
_F (71_C). Do not
use at higher operating temperatures.
Lay the seal plate (8) on a flat surface with the im­
peller side facing up. If the wear ring (51) was re­
moved, press the replacement ring into the seal
plate until it seats squarely against the bore shoul­
der.
The wear ring must seat squarely in the
seal plate bore or binding and/or exces­
sive wear will result.
Subassemble the O‐ring onto the stationary ele­
ment and use even pressure to press this subas­
sembly into the seal plate until it seats squarely
against the shoulder bore
Carefully slide the assembled seal plate and sta­
tionary seal element over the shaft. Use caution not
to nick or damage the stationary seat. Secure the
seal plate to the pedestal with the round head ma­
chine screws (48).
Subassemble the rotating element into the retainer
and bellows. Lubricate the I.D. of the bellows with
water and slide this subassembly over the shaft
sleeve until the seal face is just flush with the under­
cut end of the sleeve.
Slide the assembled shaft sleeve and rotating por­
tion of the seal and onto the shaft until the polished
faces contact. Continue to push the sleeve through