TM 5-3895-376-14&P
5-23. VIBRATOR MAINTENANCE INSTRUCTIONS - Continued
2.
Ensure that all gasket material is removed from
NOTE
mating surfaces of the bearing covers (12 and
Install all bearing cups so the wide face is
13), cover (22) and housing (50).
facing the outside of the cover (22) or
housing (50). The 70mm O.D. press
INSPECTION
sleeve is double ended with the two recess
values built in.
1.
Inspect shafts (42 and 49) for signs of burning at
surfaces where bearings fit.
a.
Press cup of bearing (26) into the proper bore
of housing (50) so that the cup is recessed
2.
Inspect shaft (49) at surface for seal ring (14) for
0.079 inch (2 mm) from the outer surface of
signs of wear.
the housing (50).
3.
Inspect keys (9, 29 and 48) for sign of distortion
b.
Press cups of bearings (25 and 43) into the
or shearing.
proper bores of housing (50) and cover (22)
so that the cup is recessed 0.157 inch (4 mm)
4.
Inspect pulley (8) for wear in v-belt groove as indi-
from the outer surface of the housing and
cated by ridging on tapered surfaces of groove.
cover.
Inspect threads of tapped holes in cover (22) and
5.
3.
Assemble the fixed shaft (49) assembly as fol-
housing (50) for stripped condition
lows:
6.
Inspect all threaded fasteners for stripped
a.
Using snap ring plier, install one retaining
threads.
ring (44) in groove of shaft (49) nearest to the
stepped down shoulder for pulley (8).
REPAIR
b.
Install key (48) in key slot of shaft (49) and
1.
Repair of the vibrator assembly consists of re-
slide weight (47), spacer (46) and spur
placement of any part(s) found damaged in any
gear (45) onto the shaft, engaging the key
way.
(48) in key slot of the parts and firmly against
the installed retaining ring (44).
2.
Install all new gaskets, seals and bearings.
c.
Using snap ring plier, install the second retain-
ASSEMBLY
ing ring (44) in the exposed groove on
shaft (49) next to the spur gear (45).
1.
Coat all parts with clean lubricating oil prior to as-
sembly.
d.
Using an arbor press with a 1.25 inch (32
mm) inside diameter pressing sleeve, install
CAUTION
the cone and rollers of bearings (43) onto the
ends of shaft (49). Ensure that the large di-
ameter end of the cone and rollers is leading
When handling roller bearings (25, 26
onto the shaft. Seat the cone and rollers fully
and 43), keep the bearing cups and the
against the shoulder of the shaft.
cone and rollers together in the same
sets as received. Premature failure may
4.
Assemble the adjustable shaft (42) assembly as
result if sets are mixed.
follows:
2.
Using an arbor press with a 2.76 inch (70 mm)
a.
If ball bearings (39) were removed, support
0.D. pressing sleeve, install bearing cups as fol-
the flange of the coupling disks (33) on block-
lows:
ing and using a hand arbor press with a 2.60
inch (66 mm) diameter pressing sleeve install
the ball bearings (39), one into each coupling
5-70
