Gorman-Rupp Pumps SE1 1/2A3A 115V 1P 1483930 and up - Manual (Page 28)

OM−06489 SE SERIES
MAINTENANCE & REPAIR PAGE E − 7
DUST SEAL
IMPELLER KEY
PUMP
CASING
SPRING
ROTOR
SHAFT STATIONARY
SEAT
MOTOR
HOUSING
BELLOWS AND
CAGE ASSY
STATIONARY
ELEMENT
ROTATING
ELEMENT
IMPELLER
SHAFT
SLEEVE
STATIONARY
SEAT
STATIONARY
ELEMENT
ROTATING
ELEMENT
Figure E-2. Seal Assembly
This seal is not designed for operation at
temperatures above 120
_ F (49_ C). Do not
use at higher operating temperatures.
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 mounting
plate.
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.
Unpack the stationary seat and stationary element.
Place a clean tissue over the sealing face of the sta-
tionary element and subassemble the stationary
element into the stationary seat.
Apply a light coating of oil to the seal seat bore in
the motor housing (10). Position the stationary
subassembly in the motor housing 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 concentric pattern. After
cleaning, apply a drop light oil to the seal face.
Unpack the rotating portion of the seal. Be certain
the sealing faces of the rotating elements are free
of grit or surface damage. Make sure the drive
grooves of the rotating elements fully engage the
drive lugs of the bellows retainer.
Apply a light coating of oil to the I.D. of the bellows.
Slide the rotating portion of the seal onto the shaft
until the upper sealing faces contact. The seal