Gorman-Rupp Pumps SFV3A 1473393 and up - Manual (Page 36)

OM-06396 SF SERIES
PAGE E - 9 MAINTENANCE AND REPAIR
damaged, the rotor and shaft must be replaced as
an assembly (see MOTOR DISASSEMBLY).
Neither of the shaft seal assemblies should be re­
used because wear patterns on the finished faces
cannot be realigned during reassembly. This could
result in premature failure. If necessary to reuse an
old seal in an emergency, carefully wash all me­
tallic parts in fresh cleaning solvent and allow to dry
thoroughly.
Handle the seal parts with extreme care to prevent
damage. Be careful not to contaminate the preci­
sion finished faces; even fingerprints on the faces
can shorten seal life. If necessary, clean the faces
with a non‐oil based solvent and a clean, lint‐free
tissue. Wipe lightly in a circular pattern to avoid
scratching the faces.
Inspect the seal components for wear, scoring,
grooves, and other damage that might cause leak­
age. If any components are worn, replace the com­
plete seal; never mix old and new seal parts.
Install the shaft seals as illustrated in Figure E-3.
STATIONARY
SEAL SEAT
SPRING
IMPELLER
BELLOWS AND
RETAINER ASSY
ROTOR
SHAFT
ROTATING
ELEMENT
STATIONARY
ELEMENT
SEAL
RETAINING RING
SEAL PLATE
STATIONARY
SEAL SEAT
SPRING
BELLOWS AND
RETAINER ASSY
SPRING
RETAINER
ROTATING
ELEMENT
SPRING
CENTERING
WASHER
STATIONARY
ELEMENT
SHIM SET
Figure E-3. Upper And Lower Seal Assemblies
The seal assemblies are not designed for
operation at temperatures above 104
_F
(40
_C). Do not use at higher operating
temperatures.
Upper Seal Installation
(Figures E-2 and E-3)
Do not unwrap a new seal assembly until time of
installation. Cleanliness of seal components is criti­
cal, especially the seal faces.
Clean the rotor shaft (3) and seal cavity area of the
intermediate (7). Be sure the area is dry and free of