TM 5-3895-376-14&P
5-23 VIBRATOR MAINTENANCE INSTRUCTIONS - Continued
12.
13.
Lift out the two shaft assemblies from the hous-
ing (50).
Disassemble the adjustable shaft (42) assembly
as follows:
a.
Use puller kit to extract the cone and rollers
of bearing (25 and 26) from ends of shaft (42)
b . Use snap ring plier to remove retaining
ring (27) from each end of shaft (42).
c.
Slide weight (28) from shaft (42) and remove
key (29).
d. Remove four hex nuts (30). capscrews (32)
and eight lockwashers (31) that secure cou-
pling disks (33) to spur gear (34)
e.
Use puller kit to remove gear (34), outer cou-
pling disk (33) with ball bearing (39) as a unit.
Separate gear from coupling disk.
NOTE
Capscrew (35) is secured to the shift
bolt (38) with loctite. It may be necessary
to heat the small diameter end of shift bolt
to free the capscrew. Heating to a tempera
ture of approximately 200°F (93.3°C)
should be sufficient.
f . Push the shift bolt (38) fully into the shaft (42)
to provide exposed surface to heat. Clamp
the small diameter of the shift bolt (38) in a
vice grip so as not to mar the surface of the
shift bolt. Apply heat to shift bolt with solder-
ing torch kit equipped with a flame spreader.
Remove socket head capscrew (35), lock-
washer (36) and wedge (37), from inside shaft
(42).
CLEANING
g. Pull shift bolt (38) from end of shaft (42).
NOTE
After removing the vice grip from shift
bolt (38), remove any burrs with crocus
abrasive cloth.
14.
15.
16.
i .
If replacement is necessary, support the
flange of the coupling disks (33) on blocking
and using a hand arbor press with a 1.77 inch
(45 mm) diameter pressing sleeve remove
the ball bearings (39), one from each cou-
pling disk.
j .
Remove spacer (40) from shaft (42).
k . Use snap ring plier to remove retaining ring
(41) from shaft (42).
Disassemble the fixed shaft (49) assembly as fol-
lows:
a.
Use puller kit to extract the cone and rollers
of bearings (43) from ends of shaft (49).
b.
Use snap ring plier to remove a retaining
ring (44) from each end of shaft (49).
c.
Supporting the inner face of spur gear (45),
press the shaft (49) from the spur gear with a
suitable arbor press.
d.
Slide spacer (46) and weight (47) from
shaft (49) and remove key (48)
Using an arbor press with 2.36 inch (60 mm) di-
ameter pressing sleeve, remove cups of bear-
ings (25, 26 and 43) from bores in cover (22) and
housing (50).
Discard all bearings.
WARNING
P-D-680, Type III, is moderately toxic to
the skin, eyes and respiratory tract;
avoid prolonged exposure. Skin and
eye protection is required. Good ventila-
tion is required. Do not use near open
flame or excessive heat. Flash point is
200° F (93.3’ C).
1 . Clean all parts in dry cleaning solvent and dry
thoroughly.
h. Use puller kit to remove the remaining cou-
pling disk (33) and ball bearing (39) from
shaft (42).
5-68
