Gorman-Rupp Pumps 82E1-L100EE-X 1215875 thru 1518663 - Manual (Page 25)

OM−05132 80 SERIES
MAINTENANCE & REPAIR PAGE E − 7
(Figure 2)
Remove the nuts (9) securing the pump casing to
the intermediate bracket (7). Separate the pump
casing from the intermediate bracket by pulling the
casing straight away from the intermediate. Tie
and tag the gaskets (6) or measure and record
their thickness for ease of reassembly. Tie and tag
any leveling shims used under the casing mount-
ing feet to ease reassembly.
Clean the mating surfaces of the intermediate and
pump casing.
Inspect the wear plate (17) and replace if badly
scored or worn. To remove the wear plate, disen-
gage the hardware (18, 19, 21 and 22) and pull the
wear plate from the pump casing.
Impeller Removal
(Figure 2)
To loosen the impeller (2), tap the vanes of the im-
peller in a counterclockwise direction (when facing
the impeller) with a block of wood or a soft-faced
mallet. Be careful not to damage the impeller
vanes. Use caution when removing the impeller;
tension on the seal spring will be released as the
impeller is unscrewed.
Inspect the impeller and replace it if cracked or
badly worn. Slide the impeller adjusting shims (11)
off the engine crankshaft. Tie and tag the shims or
measure and record their thickness for ease of
reassembly.
Seal Removal
(Figures 2 and 3)
Remove the spring seat (12) and seal spring.
Slide the shaft sleeve (10) and rotating portion of
the seal off the shaft as a unit. Apply oil to the sleeve
and work it up under the bellows. Slide the rotating
portion of the seal off the sleeve.
Use a pair of stiff wires with hooked ends to pull the
stationary seat and O-ring out of the intermediate.
NOTE
The stationary seat and O-ring may also be re-
moved by disengaging the hardware (13 and 14)
securing the intermediate to the engine and sliding
the intermediate and stationary portion of the seal
seal off the shaft as a single unit. Use a dowel of suit-
able size to press the stationary seal seat and O-
ring from the intermediate.
If no further disassembly is required, see Seal
Reassembly and Installation.
Seal Reassembly and Installation
(Figures 2 and 3)
Inspect the shaft for damage. Small scratches or
nicks may be removed with a emery cloth or a fine
file. If excessive wear exists, the engine shaft will
have to be replaced. (Refer to the engine service
manual.)
Clean the seal cavity and shaft with a cloth soaked
in fresh cleaning solvent.
Most cleaning solvents are toxic and
flammable. Use them only in a well ven-
tilated area free from excessive heat,
sparks, and flame. Read and follow all
precautions printed on solvent contain-
ers.
The seal is not normally reused because wear pat-
terns on the finished faces cannot be realigned
during reassembly. This could result in premature
failure. If necessary to reuse an old seal in an emer-
gency, carefully wash all metallic 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 precision
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 concentric pattern to avoid
scratching the faces.
Inspect the seal components for wear, scoring,
grooves, and other damage that might cause leak-