Gorman-Rupp Pumps PA6C60-4045H 1485126 and up - Manual (Page 42)

PA SERIES OM−06081
MAINTENANCE & REPAIR PAGE E − 22
SEAL PLATE
O-RINGS
IMPELLER
SHAFT
STATIONARY
SEAT
ROTATING
ELEMENT
DRIVE BAND
BELLOWS
IMPELLER
SHIMS
IMPELLER
SPRING
RETAINER
INTEGRAL
SHAFT
SLEEVE
SLEEVE
O-RING
SPRING
CENTERING
WASHER
Figure 10. 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 stationary seat O-ring with water or
light oil. Press the stationary seat into the seal plate
(21) until fully seated.
Position the seal plate over the shaft and secure it
to the bearing housing (4) with the hardware (19
and 20). Be careful not to damage the stationary
seat on the shaft threads.
Lubricate a new seal plate O-ring (35) with grease
and install it in the groove in the seal plate.
To prevent damaging the shaft sleeve O-ring (30)
on the shaft threads, cover the threads with electri-
cal or duct tape. Slide the O-ring over the shaft until
it seats against the shaft shoulder. Remove the
tape covering the threads. Check to ensure that
the shaft threads are free of any tape residue and
clean as required before proceeding with seal
installation.
Lubricate the shaft sleeve with a small amount of
light oil and slide the rotating subassembly (con-
sisting of rotating element, bellows and retainer),
onto the sleeve until the rotating element is just
flush with the undercut end of the sleeve.
Slide the shaft sleeve and subassembled seal onto
the shaft until the seal faces contact. Continue to
push the sleeve through the seal until the undercut
end seats over the O-ring and against the shaft
shoulder.
Install the seal spring and spring centering washer.
Lubricate the seal as indicated in LUBRICATION
after the impeller is installed.
Impeller Installation And Adjustment
(Figure 5)
Inspect the impeller (1) and replace it if cracked or
badly worn.