Gorman-Rupp Pumps 54J20-B 1410811 and up - Manual (Page 31)

OM-01342 50 SERIES
MAINTENANCE & REPAIR PAGE E - 9
SEAL HOUSING
O‐RINGS
IMPELLER
STATIONARY
STATIONARY
ROTATING
DRIVE BAND
BELLOWS
IMPELLER SHIMS
IMPELLER
SPRING
RETAINER
ELEMENT
ELEMENT
SEAT
SHAFT
SPRING CENTERING
WASHER
SEAL GUARD
Figure 4. 12461C Seal Assembly
This seal is not designed for operation at
temperatures above 160
_
F (71
_
C). Do not
use at higher operating temperatures.
Position the seal housing (7) on a flat surface with
the impeller side facing up. Lubricate the stationary
seat O‐rings with light lubricating oil and subas­
semble the stationary element in the stationary
seat. Press this subassembly squarely into the seal
housing bore until fully seated. Be careful not to
damage the seal face. A push tube cut from a
length of plastic pipe would aid in this installation.
The I.D. of the tube should be approximately the
same as the I.D. of the seal spring.
After installation, clean the stationary seal face with
a clean, lint‐free tissue. Wipe lightly in a concentric
pattern to avoid scratching the face.
Replace the seal housing gasket (35). Be sure to
align the lubrication ports in the pedestal with the
holes in the gasket.
Slide the assembled seal housing and stationary
portion of the seal onto the impeller shaft and se­
cure the seal housing to the pedestal with the hard­
ware (10 and 11). Be careful not to damage the
seal face.
Subassemble the rotating element into the retainer
and bellows and slide this subassembly onto the
shaft until the seal elements contact. Install the
spring and the seal guard assembly.
Lubricate the seal assembly as described in LU­
BRICATION after the impeller is installed.
Impeller And Wear Ring Installation
If the wear ring (6) was removed for replacement,
remove the jacking screws, align the mounting
holes, and press the wear ring into the pump cas­
ing until fully seated. Apply `Never‐Seez' or equiva­
lent compound to the hardware (4 and 5) and se­
cure the wear ring to the pump casing.