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TM 10-4320-343-14
5.6.4.2 Inspection.
a.
b.
c .
d.
Do not use dry cleaning solvent without proper ventilation and clothing.
DO not smoke or use near open flame or excessive heat.
Dry cleaning
solvent is potentially dangerous to personnel and property.
Clean parts
in a well-ventilated area.
Avoid inhalation of solvent fumes.
Wear
goggles and rubber gloves to protect eyes and skin.
Wash exposed skin
thoroughly.
Flash point of solvent is 100°F to 138°F (38°C to 59°C) .
Failure to obey this warning may result in personal injury or death.
Clean all parts.
Dry with compressed air.
Rotate bearings (15 and 16) on shaft assembly (13)
Ensure that bearings do
not feel rough, gritty or loose.
Inspect shaft for deformation of shaft journals or other evidence of damage.
Check impeller vane tip.
A slight deformation may have occurred from use of
steel bar during removal.
If so, use a file to remove burrs.
Ensure that no
f i l i n g s f a l l i n t o i m p e l l e r.
5.6.4.3 Repair.
a .
Remove retaining ring (17).
b .
Using arbor press, press front bearing (15) and rear bearing (16) off
s h a f t ( 1 8 ).
c .
Lightly oil the shaft (18).
NOTE
Rear bearing contains eight balls.
Check to make certain bearing is correct
one.
d.
Center rear bearing (16) on shaft and press on with pressure applied to inner
race only.
Ensure that inner race seats against shaft shoulder.
e.
Turn shaft over with threaded (impeller) end facing upward and retain in
press.
f .
Lightly oil shaft (18).
Front bearing must be installed with “THRUST HERE” marking on outer race
facing upward toward threaded (impeller) end of shaft.
NOTE
Front bearing contains twelve balls.
Check to make certain bearing is
correct one.
g.
With “THRUST HEREn marking facing toward threaded (impeller) end of
shaft (18), and front bearing (15) centered over threaded end, press bearing
onto shaft.
h.
Install bearing retaining ring (17) into groove of shaft.
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