GORMAN-RUPP PA4C60-4045H, Инструкция по установке, эксплуатации и обслуживанию

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OM−06078 PA SERIES
MAINTENANCE & REPAIR PAGE E − 19
ponents are worn, replace the complete seal;
never mix old and new seal parts .
If a replacement seal is being used, remove it from
the container and inspect the precision finished
faces to ensure that they are free of any foreign
matter.
To ease installation of the seal, lubricate the bel-
lows and stationary seat O-rings with water or a
very
small amount of oil, and apply a drop of light
lubricating oil on the finished faces. Assemble the
seal as follows (see Figure 8).
IMPELLER
SHAFT
SPRING
IMPELLER
RETAINER
O-RING
BELLOWS
ROTATING
ELEMENT
STATIONARY
SEAT
SHAFT
SLEEVE
SHAFT
KEY
IMPELLER
SHIMS
SHAFT
SLEEVE
O-RING
Figure 8. Seal Assembly
The seal is not designed for operation at
temperatures above 160
F (71 C). Do not
use at higher operating temperatures.
Install the O-ring (7) in the shaft sleeve (51) and lu-
bricate it with light oil. Slide the V-ring (10) onto the
sleeve with the lip toward the impeller end of the
sleeve, then slide the sleeve onto the shaft until it is
fully seated against the shaft shoulder.
Lubricate the stationary seat O-ring with water or
light oil. Position the back plate with the impeller
side up and press the stationary seat into the front
of the back plate until it seats squarely against the
bore shoulder.
Carefully position the back plate and stationary
seat over the shaft and secure it to the bracket (12)
with the previously removed hardware (39).
Be
careful not to damage the stationary element on
the shaft keyway. Make sure the lip on the V-ring
seats against the lip seal (9).
Lubricate the O.D. of the seal sleeve with a small
amount of light oil and slide the rotating subas-
sembly (consisting of rotating element, bellows
and retainer) onto the sleeve until the sealing faces
contact.
Install the seal spring. Lubricate the seal as indi-
cated in
LUBRICATION after the impeller and re-
maining pump components are installed.