Gorman-Rupp Pumps PAV3B60C-3TNV70 1433753 and up - Manual (Page 36)

PA SERIES OM-06260
MAINTENANCE & REPAIR PAGE E - 18
Reinstall the U‐bolt and hardware (30, 32 and 33).
Reinstall the guard (28) and secure it with the hard­
ware (12 and 31).
Seal and Impeller Installation
(Figures 3, 8, 9 and 10)
Most cleaning solvents are toxic and
flammable. Use them only in a well ven­
tilated area free from excessive heat,
sparks, and flame. Read and follow all
precautions printed on solvent contain­
ers.
Clean the seal cavity and shaft with a cloth soaked
in fresh cleaning solvent. Inspect the stationary
seat bore in the seal plate for dirt, nicks and burrs,
and remove any that exist. The stationary seat bore
must be completely clean before installing the
seal.
A new seal assembly should be installed
any time the old seal is removed from the
pump. Wear patterns on the finished faces
cannot be realigned during reassembly.
Reusing an old seal could result in prema­
ture failure.
To ease installation of the seal, lubricate the shaft
sleeve O‐ring and the external stationary seat O‐
ring with a very small amount of light lubricating oil.
See Figure 8 for seal part identification.
SEAL PLATE
O‐RINGS
IMPELLER
SHAFT
STATIONARY
SEAT
STATIONARY
ELEMENT
ROTATING
ELEMENT
BELLOWS
IMPELLER
SHIMS
IMPELLER
SPRING
RETAINER
INTEGRAL
SHAFT
SLEEVE
SLEEVE
O‐RING
SPRING
CENTERING
WASHER
SHEAR
RING
(SHEARED)
Figure 8. Cartridge Seal Assembly
This seal is not designed for operation at
temperatures above 160
_
F (71
_
C). Do not
use at higher operating temperatures.
If the seal plate was removed, install the seal plate
O‐ring (6) and lubricate it with oil. Position the seal