Gorman-Rupp Pumps 03F52-B 1329227 and up - Manual (Page 26)

0 SERIES OM-01190
MAINTENANCE & REPAIR PAGE E - 8
IMPELLER
SHAFT
SEAL
PLATE
ROTATING
ELEMENT
RETAINER
SPRING
IMPELLER
BELLOWS
SHAFT
SLEEVE
O‐RING
STATIONARY
SEAT
Figure 3. 25285-855 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 (9) on a flat surface with the im­
peller side facing up.
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 seat over the shaft. Use caution not to
nick or damage the stationary seat on the shaft
threads. Temporarily secure the seal plate to the
pedestal (20) using two capscrews and nuts (1/2
UNC X 1 1/2 inch long, not supplied).
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
the seal until it is fully seated against the shaft
shoulder.
Install the seal spring.
Impeller Installation
Inspect the impeller and replace it if cracked or
badly worn. Screw the impeller onto the shaft until
tight. Make sure that the seal spring seats squarely
over the shoulder on the back of the impeller.
Secure the impeller with the hardware (25 and 26).
Pump Reassembly
If removed at disassembly, press the replacement
wear ring (24) into the pump casing until it seats
squarely against the shoulder bore.