TM 9-2320-260-20
13-3. AUTOMATIC BRAKE TEST AND ADJUSTMENT (Contd)
4.
Refer to second vehicle (2) operator's manual to prepare second vehicle (2) for towing as follows:
a. Place transmission lever in "N" (neutral) position.
b. Disengage parking brake.
c. Disengage front wheel drive lever if engaged.
WARNING
Always use hand throttle to control engine speed when operating
winch. Avoid sudden changes in speed. Rough or jerky operations
may cause shearpin to break or cable to snap. Damage to vehicle
or injury to personnel may result.
Using hand throttle, pull second vehicle (2) halfway up grade and observe movement of second
5.
vehicle (2).
6.
Engage clutch of test vehicle (1). If second vehicle (2) rolls backward, go to task b and adjust
automatic brake of test vehicle (1). If second vehicle (2) holds steady on the incline, no adjustment
is required.
7.
With clutch pedal depressed, place winch control lever in "R" (reverse) and unwind winch cable (3)
until second vehicle (2) is on level ground.
8.
With second vehicle (2) on level ground, shift winch control lever in upper "N" (neutral) position,
disengage clutch, and disengage hand throttle.
9.
Set parking brake on both vehicles (1) and (2).
10.
Unrig the load, and stow cable (3) (TM 9-2320-260-10).
I
b. Adjustment
WARNING
Brake band cover and adjustment screw may be too hot to proceed
with this task. If cover and screw are too hot, allow them to cool
before continuing with adjustment. Failure to do this may result
in injury to personnel.
1. Adjust brake band by turning adjusting screw (4) clockwise in 1/2-turn increments to increase
braking action enough to hold second vehicle (2) steady on incline.
2. Repeat testing (task a, steps 5 through 9) and adjustment (task b, step 1) until correct adjustment
is obtained.
13-6
