TM 5-3895-376-14&P
5-23. VIBRATOR MAINTENANCE INSTRUCTIONS - Continued
g.
Using an arbor press with a thin wall 1.65
disk. Seat the bearings fully into the coupling
inch (42 mm) inside diameter pressing
disks.
sleeve, install the second assembled bear-
ing (39) and coupling disk (33), seating the
b.
Using snap ring plier, install one retaining
coupling disk into spur gear (34). To ensure
ring (41) onto shaft (42). Seat retaining ring in
proper shifting for forward and reverse travel,
groove between the key slot and opening for
the cog of this coupling disk must be 180 op-
the wedge (37).
posite of the cog observed in step e., above.
Align bolt holes of both coupling disks (33)
c.
Install spacer (40) over end of shaft (42) and
and spur gear (34), so that the cog of this cou-
seat against the installed retaining ring (41).
pling disk is 180 opposite of the cog ob-
served in step e. above. Align bolt holes of
d.
Using an arbor press with a thin wall 1.65
both coupling disks (33) and spur gear (34).
inch (42 mm) inside diameter pressing
sleeve, install one assembled bearing (39)
and coupling disk (33), seating inner race of
NOTE
bearing (39) against the installed spacer (40).
ENSURE THAT THE TIMING MARKS ON
OUTSIDE SURFACE OF EACH COU-
e.
Inset-t the large diameter end of shift bolt (38)
PLING DISK (33) ARE 180 OPPOSED
into end of shaft (42). Through opening in
TO EACH OTHER.
side of shaft (42), install wedge (37) securing
to shift bolt with flat washer (36) and socket
h.
Secure with eight lockwashers (31) and four
head capscrew (35), which has been coated
capscrews (32) and hex nuts (30). Tighten
on the threads with loctite. Tighten securely,
hex nuts securely.
ensuring that shift bolt (38) rotates freely
within shaft (42).
i.
Using snap ring plier, install retaining
ring (27) in groove of shaft (42) next to the
f.
Support the shaft (42) in an arbor press with
outer coupling disk (33).
the shift bolt (38) pointing up. Install the spur
gear (34) over the shaft and seat on installed
Install key (29) into key slot of shaft (42) and
j.
coupling disk (33) aligning the four bolt holes.
install weight (28) onto the shaft, engaging
Observe the location of the cog of the in-
the key and seating against the retaining
stalled coupling disk (33).
ring (41).
Using snap ring plier, install second retaining
k.
ring (27) in groove next to weight (28).
I.
Using an arbor press with a 1.25 inch (32
mm) inside diameter pressing sleeve, install
the cone and rollers of bearings (25 and 26)
onto the ends of shaft (42). Ensure that the
large diameter end of the cone and rollers is
leading onto the shaft. Seat the cone and roll-
ers fully against the shoulder of the shaft.
5.
If spring pins (24) were removed, install pins in
the two holes provided in housing (50).
6.
Position the housing (50) on blocking with the
open side facing up.
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