Gorman-Rupp Pumps VGH5B31-B 1379872 thru 1211802 - Manual (Page 30)

VGH SERIES OM−06128
MAINTENANCE & REPAIR PAGE E − 8
Do not attempt to separate the seal, this could
damage the seal. Individual parts are not sold sep-
arately.
Inspect the seal for wear, scoring, grooves, and
other damage that might cause leakage. If any
components are worn, replace the seal.
If a replacement seal is being used, remove it from
the container and inspect it to ensure that it is free
of any foreign matter.
To ease installation of the seal and seal plate, lubri-
cate the seal sleeve O-ring with water or a very
small amount of oil. See Figure 2 for seal part iden-
tification.
SEAL PLATE
IMPELLER
SHAFT
STATIONARY
SEAT
ROTATING
ELEMENT
CAGE
SHAFT
SLEEVE
SET SCREW
O-RING
SEAL FLANGE
BELLOWS
SPRING
STATIONARY
SEAT O-RING
Figure 2. Cartridge Seal Assembly
This seal is not designed for operation at
temperatures above 160
_
F (71
_
C). Do not
use at higher operating temperatures.
Lubricate the O-ring (40) with water or light oil and
install it in the groove in the I.D. of the shaft sleeve
(57). Lubricate the O.D. of the sleeve in the area of
the seal with water or light oil and slide the rotating
portion of the seal onto the shaft until it is fully
seated against the step on the O.D. of the shaft
sleeve.
Lubricate the stationary seat O-ring with water or
light oil and install it on the O.D. of the stationary
seat. Align the hole in the stationary seat with the
hole for the pin (11) in the seal flange (37) and use
thumb pressure to press the stationary seat and O-
ring into the seal flange until fully seated. After
installation, wipe the stationary seat face in a con-
centric pattern with a clean, lint-free cloth to re-
move any fingerprints. Screw the pin into the seal
flange to secure the stationary seat.
Carefully slide the assembled stationary seat and
flange over the end of the shaft sleeve until the seal
faces contact.
Slide the assembled shaft sleeve, seal and seal
flange over the shaft until the impeller end of the