Gorman-Rupp Pumps 14C20-B 740693 and up - Manual (Page 32)

OM-00680 10 SERIES
MAINTENANCE & REPAIR PAGE E - 9
To ease installation of the seal, lubricate the O‐
rings, shaft sleeve and bellows with water or a very
small amount of oil, and apply a drop of light lubri­ cating oil on the finished faces. Assemble the seal
as follows, (see Figure E-4).
IMPELLER
SHAFT
IMPELLER
IMPELLER
SHIMS
SHAFT
SLEEVE
ELEMENT
STATIONARY
ROTATING
ELEMENT
STATIONARY
SEAL
SPRING
SEAL SEAT
SEAL PLATE
O‐RING
OIL SEAL
BELLOWS
DRIVE BAND
SPRING CENTERING
WASHER
Figure E-4. 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 (25) on a flat surface with the
impeller side down. Apply a light coating of oil to
the oil seal (69) and press it into the seal plate with
the lip positioned as shown in Figure E-1.
Position the seal plate on a flat surface with the im­
peller side up. Press the stationary subassembly
(consisting of the stationary seat, O‐rings and sta­
tionary element) into the seal plate until fully seated
in the seal plate bore.
Slide the seal plate over the shaft until fully seated
against the pedestal. Be careful not to damage the
lip of the oil seal (69) on the shaft threads.
Align the threaded hole for the bottle oiler piping
with the opening in the top of the pedestal and tem­
porarily secure the seal plate using two capscrews
and nuts (3/8-16 UNC by 1-1/2 inches long, not
supplied).
Lubricate the shaft sleeve (70) with light oil and
slide the rotating subassembly (consisting of the
rotating element, retainer and bellows) onto the
sleeve until the rotating element is just flush with
the chamfered end of the sleeve. Slide the shaft
sleeve and rotating subassembly onto the shaft
until the sealing faces contact. Continue to push
the sleeve through the seal until it bottoms against
the shaft shoulder. Be careful not to damage or roll
the lip of the oil seal (69). Install the seal spring and
spring centering washer.
Lubricate the seal assembly as indicated in
LUBRICATION, after the impeller has been in­
stalled.