Gorman-Rupp Pumps PA6C60-4045T 1416818 thru 1481444 - Manual (Page 42)

PA SERIES OM-06199
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
(3) until fully seated.
Position the seal plate over the shaft and secure it
to the bearing housing (6) with the hardware (11
and 12). Be careful not to damage the stationary
seat on the shaft threads.
Lubricate a new seal plate O‐ring (30) with grease
and install it in the groove in the seal plate.
To prevent damaging the shaft sleeve O‐ring (28)
on the shaft threads, stretch the O‐ring over a piece
of tubing 1‐1/4 I.D. x 1‐1/2 O.D. x 2‐inches long (32
mm x 38 mm x 51 mm). Slide the tube over the shaft
threads, then slide the O‐ring off the tube and onto
the shaft. Remove the tube, and continue to slide
the O‐ring down the shaft until it seats against the
shaft shoulder.
Lubricate the shaft sleeve (24) 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.