Gorman-Rupp Pumps 810A2-F6L All serial numbers - Manual (Page 29)

80 SERIES OM−02754
MAINTENANCE & REPAIR PAGE E − 10
Slide the wavy washer (29) onto the shaft. Install
the bearing gasket (22) and secure it with the bear-
ing cap and hardware (23).
Lubricate the bearings as indicated in LUBRICA-
TION at the end of this section.
Securing Intermediate And Drive Assembly To
Engine
(Figure 2)
If the drive plate assembly (26) was removed, se-
cure it to the engine flywheel with the attaching
hardware (27 and 28).
Slide the splined end of the shaft (25) into the drive
plate. Position the intermediate (19) with the air
vent at the top. Secure the intermediate and
guards (59 and 60) to the engine bellhousing with
the hardware (20 and 21).
NOTE
Mount the intermediate guard (59) on the intermedi-
ate so it is over the sight gauge (57).
Seal Reassembly and Installation
(Figures 2 and 4)
Inspect the pump casing, seal plate, seal liner and
the impeller shaft for burrs or sharp corners, and
remove any that exist. Replace the seal liner if wear
or grooves exist which could cause leakage or
damage to the seal packing rings.
To replace the seal liner, position the seal plate (36)
on the bed of an arbor (or hydraulic) press and use
a new seal liner to press the old liner out. After the
new liner is properly installed, a 1/4-inch diameter
(6,35 mm) hole must be drilled through it to permit
the flow of lubricant to the seal assembly. Be care-
ful to center the drill in the threaded hole so not to
damage the threads in the pump casing. Deburr
the hole from the inside of the seal liner after drill-
ing.
Slide the seal plate onto the shaft (25) and against
the intermediate (19). Align the lubrication hole in
the seal plate with the opening in the intermediate.
Temporarily secure the seal plate to the intermedi-
ate using two capscrews and nuts (1/2 UNC by
1-1/2 inch long, not supplied).
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-
age. Clean and polish the seal spacer sleeve, or re-
place it if there are nicks or cuts on either end. If any
components are worn, replace the complete seal;
never mix old and new seal parts.
If a replacement seal is being used, remove it from
the container and inspect the precision finished
faces to ensure that they are free of any foreign
matter.
To ease installation of the seal, lubricate the pack-
ing rings and seal liner with water or a very small
amount of oil, and apply a drop of light lubricating
oil on the finished faces. Assemble the seal as fol-
lows, (see Figure 4).