Gorman-Rupp Pumps S8A1-E95 575/3 1429751 and up - Manual (Page 36)

S SERIES PUMPS OM-06258
MAINTENANCE AND REPAIR PAGE E - 10
STATIONARY
SEAL SEAT
SPRING
IMPELLER
BELLOWS AND
RETAINING ASSY
ROTOR
SHAFT
ROTATING
ELEMENT
STATIONARY
ELEMENT
SEAL
RETAINING RING
DIFFUSER
STATIONARY
SEAL SEAT
SPRING
BELLOWS AND
RETAINING ASSY
IMPELLER
WASHER
ROTATING
ELEMENT
SPRING
RETAINER
O‐RING
STATIONARY
ELEMENT
SHIM SET
O‐RING
Figure E-3. Upper And Lower Seal Assemblies
This seal is not designed for operation at
temperatures above 122
_ F (50_ C). Do not
use at higher operating temperatures.
Upper Seal Installation
(Figures E-1 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.
Carefully remove the material stuffed into the seat
bore (or unwrap the shaft). Be sure no debris
stopped by the material falls into the motor cavity.
Clean the rotor shaft (23) and seal cavity area of the
intermediate (17). Be sure the area is dry and free
of lint and dirt. Check the seal bore for burrs or
nicks that might prevent a good seal. Remove
them with a fine file or emery cloth to restore origi­
nal contours. If the shaft is bent or damaged, the
complete rotor and shaft must be replaced as an
assembly. Apply a light coating of oil to the bore of
the intermediate.
NOTE
When pressing seal components onto the shaft,
use hand pressure only. A push tube cut from a
length of plastic pipe will aid in installing seal com­
ponents. The I.D. of the push tube should be ap­
proximately the same as the I.D. of the seal spring.
Subassemble the stationary element in the station­
ary seat. Position this subassembly in the interme­
diate bore with the sealing face up and cover the
seal face with a clean tissue. Use your thumbs to
press the assembly into the bore. Apply equal
pressure on opposite sides until the seat contacts
the bore shoulder. Remove the tissue and inspect
the seal face to ensure that it is clean and dry. If
cleaning is necessary, use clean tissue to wipe
lightly in a circular pattern.
Unpack the rotating portion of the seal. Be certain
the seal face of the rotating element is free of grit or
surface damage. Because the rotating element