INSTALLATION - TM-5-4210-224-14-P0387

TM5-4210-224-14&P

4-211. HEIGHT SENSING BRAKE PROPORTIONING VALVE REPLACEMENT.

(Continued)

INSTALLATION

a. Position the valve (6) on the mounting bracket

and install the washers (5) and bolts (4).

b. Rotate the valve shaft to permit the installation

of the adjustment gauge (7).

NOTE

The center hole of the adjustment

gauge must seat on the "D" shape

of the valve shaft.

c. Position gauge tang, so that it seats in the valve

mounting hole.

NOTE

Do not drive lever assembly on

valve shaft by using nut or proper

valve setting may be disturbed.

d. Install the lever (3).

e. Install the nut (2) and torque to 89 in-lbs (10 N-

m).

f. Sever the tang (8) on the adjustment gauge.

g. Install the brake pipes.

h. Bleed the brakes (paragraph 4208).

i. Remove the jack stands and lower the vehicle.

j. Test the brakes.

NOTE

If a front wheel lock up is

experienced when the vehicle is

being operated near the maximum

Gross Vehicle Weight Rating with

a lower than desired brake

application, the valve adjustment

should be checked.

4-292