C3, TM 9-2320-211-20
(4) Install two inner springs, one long; one short,
(3) Tighten all connections, and bleed the brake
hydraulic system (para 2-190).
and two cup washers on the new guide pins. Anchor pins
are to be inserted in the holes at the bottom of the backing
Handbrakes.
plate. Insure that the wheel cylinder push rods engage the
a. General. The handbrake is properly adjusted when
slots in the upper end of the brakeshoes. Install cup
it will hold the vehicle on an incline with at least one-third
washers, outer springs, and retaining nut on new guide
of the handbrake lever travel in reserve, or if the
pins (fig. 2-186).
application of the brake at a speed of 10 mph stops the
vehicle.
back side of the backing plate assembly.
b. Adjustment.
brakeshoes, and remove the clamp from the ends of the
wheel cylinder.
NOTE
Adjust the brakeshoe stop screw to obtain
(9) Adjust the brakes, using major adjustment
approximately 0.015 inch clearance between
the outer shoe and the brakedrum before
procedures (para 2-189a(3)).
adjusting the cable at the brakeshoe lever.
(1) To increase the braking action of the handbrake,
turn the adjusting cap at the end of the brake lever
clockwise. To decrease the action (to prevent dragging of
brakeshoes), turn the adjusting cap counterclockwise.
NOTE
(2) If the braking action cannot be increased
The hydraulic lines between the master
sufficiently by turning the adjusting cap clockwise, turn
cylinder, air hydraulic cylinder and axles are
the adjusting cap counterclockwise, adjust the cable
rigid type lines of seamless metal tubing.
tension at the brakeshoe lever, and then turn the
Flexible type lines are used to connect the axle
adjusting cap clockwise u n t i l the correct brake
lines to the wheel cylinders.
adjustment is obtained.
(3) To adjust the cable at the brakeshoe lever, hold
a. Maintenance. Check flexible brake hoses for
the adjusting nut on the transfer end of the cable, loosen
seepage at any point. Inspect for pinching of hose;
the locknut, turn the adjusting nut clockwise on the cable,
evidence of rub wear due to interference with vehicle
and tighten the locknut.
structure; a n d hose stress caused by improper
installation. Take corrective action to reinstall and/or
replace defective parts as needed.
a. Removal.
(1) Remove the cotter pin from the clevis pin
NOTE
securing the cable clevis to the lower end of the
hand brake lever, and remove the clevis pin. Remove the
When brake hoses are worn, chafed, cracked,
cable assembly from the handbrake lever.
crimped or abraded, resulting in damage to
(2) Remove the two nuts securing the handbrake
hose through outer casing to the first ply of
lever assembly to the left end of the operator's seat.
fabric, it is mandatory that the hose assembly
(3) Remove the five nuts and screws securing the
be replaced.
handbrake lever assembly to the top side and the cable
b. Removal.
clamp bracket to the underside of the cab floor. Remove
(f) To remove the line, disconnect both ends of the
the brake lever assembly and the cable clamp bracket
line.
from the cab floor.
(2) Remove the retaining clips from the line.
(4) Remove the nut and screw securing the closed
Remove the line from the vehicle.
clip and the handbrake cable to the clip extension at the
c. Installation.
left end of the rear cab crossmember. Remove the clip
CAUTION
from the cable.
Do not kink or twist the hose when tightening
(5) Remove the locknut and adjusting nut from the
the end fittings.
end of the handbrake cable at the brakeshoe lever.
(1) To install the line, position the line between the
Remove the cable from the lever.
hydraulic system components to be connected.
(6) Remove the two screws and nuts securing the
CAUTION
cable anchor clamp and the cable to the cable clamp
Use cushioned retaining clamps (NSN 5340-
bracket bolted to the rear of the transfer case. Remove
00-854-6729) when installing flexible brake
the clamp and cable from the bracket.
lines.
(2) Secure the line with retaining clips, and connect
the lines at both ends.
