TM 10-3950-206-12
4-70.
Wheel Cylinder Assembly
a.
Removal
(1) Remove axle shaft, hub, brakedrum, and
brakeshoes (para 4-69).
(2) Remove brake line from wheel cylinder (5,
(3) Remove capscrews (1) and lockwashers
(2) that secures wheel cylinder to back plate; re- move
wheel cylinder and spacer (4).
b. Installation. Reverse procedures in a above.
Figure 4-55. Brakeshoe adjustment points
(m) When a solid stream of fluid free of
bubbles is obtained, close and tighten the bleed screw.
(n) Repeat steps (k), (l), and (m) at the
bleed screw (D).
(o) After the system bleeding is
completed, remove the rubber drain tube from the wheel
cylinder
Note. Do not reuse brake fluid which
has been removed from the brake system.
(p) Close the shut-off valve in the line
from the pressure bleeder tank to the master cylinder
reservoir, and then remove the line from the reservoir.
Figure 4-56. Brake bleeding diagram.
(q) Fill the master cylinder reservoir to
approximately 3/4 inch from the filler port opening (if fluid
is required) and then replace the filler cap.
Section XVII. STEERING SYSTEM MAINTENANCE
b.
Installation. Reverse procedures for removal.
4-71. General
c.
Adjustment.
The crane is steered by the rear wheels. Steering is
(1) To adjust turning radius, set rear wheels in
done by a steering handwheel, through the steering
straight position, remove cotter pin, (fig. 4-57).
valve, and a hydraulic cylinder mounted in the rear axle
(2) Rotate steering wheel from full left position
connected to the steering arm of the axle.
to full right; measure length of stroke of cylinder rod.
4-72. Steering Cylinder
a. Removal. Refer to figure 4-57, and remove
the steering cylinder.
4-58
