Gorman-Rupp Pumps S8B1-E100 460/3 1432260 and up - Manual (Page 36)

S SERIES PUMPS OM-06259
MAINTENANCE AND REPAIR PAGE E - 10
STATIONARY
SEAL SEAT
SPRING
IMPELLER
BELLOWS
ROTOR
SHAFT
ROTATING
ELEMENT
STATIONARY
ELEMENT
SEAL
RETAINING RING
SEAL
PLATE
STATIONARY
SEAL SEAT
SPRING
BELLOWS
SPRING
RETAINER
ROTATING
ELEMENT
SPRING
RETAINER
O‐RINGS
O‐RING
RETAINER
RETAINER
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.
Clean the rotor shaft (39) and seal cavity area of the
intermediate (48). 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.
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.
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.
Lubricate the stationary seat O‐ring and position
the stationary seat in the intermediate bore with the
sealing face up. Cover the seal face with a clean tis­
sue and use your thumbs to press the stationary
seat into the bore. Apply equal pressure on oppo­
site sides until the seat contacts the bore shoulder.
Remove the tissue and inspect the seal face to en­
sure that it is clean and dry. If cleaning is neces­
sary, 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. If the rotating element does not
want to stay in the bellows retainer when turned