TM 5-3895-376-14&P
5-23. VIBRATOR MAINTENANCE INSTRUCTIONS - Continued
ings (25, 26, and 43), in preparation for ad-
justing the end play of the vibrator shafts.
a . lnstall new gaskets (15) and bearing covers
(12 and 13), securing with countersunk lock-
washers (11) and flat head screws (10)
7. Using the flat bottom of housing (50) as a refer-
ence, install the adjustable shaft (42) assembly
into the left bore, seating cone and rollers of bear-
ing (26) into the bearing cup installed in the hous-
ing. Rotate the spur gear (34) so that the timing
Torgue the capscrews to 17 ft-lbs (23 Nm)
mark on coupling disk (33) is pointing directly to
with torque wrench fitted with a 6 mm hex key
the right.
driver.
8. Install the fixed shaft (49) assembly into the re-
maining bore of housing (50), seating cone and
b. lnstall control housing with a new gasket on
rollers of bearing (43) with bearing cup installed
remaining opening of housing (50) and se-
in the housing. Ensure that the timing mark on
cure with three socket head capscrews and
spur gear (45) aligns directly with mark on cou-
lockwashers as shown below Torque cap-
pling disk (33) when teeth of spur gears (34
screws to 17 ft-lbs (23 Nm) with torque
wrench fitted with a 6 mm hex key driver.
and 45) are engaged.
c. Remove the control housing and bearing cov-
9. Install new gasket (23) on edge of housing (50).
ers installed in steps a and b above.
10. Install cover (22) over ends of shafts (42 and 49),
carefully seating bearings (25 and 43) in cups in-
d. Rotate the shaft (49) while shifting both
shafts (42 and 49) toward the cover (22),
stalled in cover.
seating bearings and measure the depth of
11. Position guard (21) over the two top holes of
the end of the shafts from the flanges of hous-
cover (22) and secure the guard (21) and cover
ing (50) with a depth gage. Record this meas-
(22) to housing (50) with nine socket head cap-
urement for each shaft.
screws (19) and lockwashers (20). Torque the
capscrews to 22 ft-lbs (30 Nm) with torque
e. Again rotate the shaft (49) while shifting both
shafts (42 and 49) toward the housing (50),
wrench fitted with an 8 mm hex key driver.
seating bearings and measure the depth of
the end of the shafts from the same flanges
12. Adjust end play of the shafts (42 and 49) as fol-
used in step d., above. Record this measure-
lows:
ment for each shaft.
NOTE
f. Select shims (16, 17 and 18) in such a combi-
Steps a. and b., below are temporary in-
nation to reduce the amount of fend play for
stallations of these covers and control
each shaft to 0.011 - 0.014 inch (0.3 - 0.35
housing to seat the bearing cups of bear-
mm).
5-74
