Gorman-Rupp Pumps 16A22-B 1068713 and up User Manual

Page 29

OM−00711−04

10 SERIES

MAINTENANCE & REPAIR

PAGE E − 9

IMPELLER

SHAFT

O-RINGS

IMPELLER

SHIMS

SHAFT

SLEEVE

BELLOWS

STATIONARY

ROTATING ELEMENT

SPRING

SEAL SEAT

SEAL PLATE

ELEMENT

STATIONARY

OIL SEAL

RETAINER

SPRING CENTERING

WASHER

DRIVE BAND

Figure E−3. 12461B Seal Assembly

This seal is not designed for operation at
temperatures above 160

_F (71_C). Do not

use at higher operating temperatures.

Install the slinger ring (42) on the shaft.

Place the seal plate on a flat surface with the impel-
ler side up. Press the oil seal (43) into the seal plate
(12) with the lips positioned as shown in Figure
E−1.

Lightly lubricate the stationary seat O-rings with a
small amount of oil. Subassemble the stationary
element in the stationary seat with the chambered
side out. Press the stationary seat into the seal
plate until it bottoms against the seal plate bore. A
push tube cut from a length of plastic pipe would
aid this installation. The I.D. of the pipe should be
approximately the same diameter as the I.D. of the
seal spring.

Slide the seal plate over the shaft until fully seated
against the pedestal (23). Be careful not to dam-
age the oil seal lip on the shaft threads.

Align the threaded seal lubricant hole in the seal
plate with the pedestal opening and temporarily
secure the seal plate using two capscrews and
nuts (1/2 UNC X 1-1/2 inch long, not supplied).

Slide the lubricated shaft sleeve (75) onto the shaft
and push it through the stationary seat and oil lip
seal. Be careful not to damage the oil seal lip.
Lightly lubricate the rotating subassembly (con-
sisting of the rotating element, retainer and bel-
lows) and press it onto the lubricated shaft sleeve.
Continue to push the subassembly until the seal
faces contact. Install the seal spring and the spring
centering washer.

After the impeller has been installed, reinstall the
bottle oiler and piping (16, 17, 18 and 19) and the
air vent and piping (13, 14 and 15) in the seal plate.
Lubricate the seal assembly as indicated in
LUBRICATION.