Gorman-Rupp Pumps 82D3-B 274955 and up - Manual (Page 27)

80 SERIES OM−00806
MAINTENANCE & REPAIR PAGE E − 8
IMPELLER
SHAFT
STATIONARY
SEAT
SEAL
PLATE
ROTATING
ELEMENT
SPRING
RETAINER
SPRING
IMPELLER
ADJUSTING
SHIMS
BELLOWS
SHAFT-
SLEEVE
O-RING
IMPELLER
Figure 3. S33 Seal Assembly
This seal is not designed for operation at
temperatures above 160
_F (71_C). Do not
use at higher operating temperatures.
Position the seal plate (6) on a flat surface with the
impeller side facing up. Apply oil to the stationary
seat O-ring and use thumb pressure to press the
stationary seat into the seal plate bore until fully
seated. A push tube made from a piece of plastic
pipe would aid this installation. The I.D. of the tube
should be approximately the same as the I.D. of the
seal spring.
Slide the assembled seal plate and stationary seat
over the impeller shaft (11) and temporarily secure
the seal plate to the pedestal (14) using two cap-
screws and nuts (1/2 UNC x 1 1/2 inch long, not
supplied).
Lubricate the O.D. of the shaft sleeve with water or
a very small amount of oil, and slide the rotating
portion of the seal assembly onto the shaft sleeve
until the face of the rotating element is just flush
with the chamfered end of the sleeve.
Slide the assembled seal and sleeve onto the shaft
until the seal faces contact. Continue to press the
shaft sleeve through the rotating portion of 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.
The shaft and impeller threads must be
completely clean before reinstalling the im-
peller. Even the slightest amount of dirt on
the threads can cause the impeller to seize
to the shaft, making future removal difficult