Gorman-Rupp Pumps VGH1 1/4B31-B 1379872 thru 1210317 - Manual (Page 30)

VGH SERIES OM−06112
MAINTENANCE & REPAIR PAGE E − 8
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
(56). 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
sleeve is just flush with the shaft shoulder. Secure
the sleeve to the shaft with the setscrew (52).
Install a new gasket (38) in the bore of the seal
flange.
Align the studs (9 and 36) with the holes in the
bearing housing and seal flange and slide the seal
plate (39) over the shaft until the step on the O.D. of
the seal plate is fully seated in the bearing housing.
Make sure the coupling (5) in the seal flange is
properly aligned for installation of the vent line (8).
Secure the seal plate to the bearing housing with
the nuts (10).
Secure the seal flange to the seal plate with the
nuts (35).