TM 5-3895-370-14&P
4-98. BRAKE ADJUSTMENT (CONT).
WARNING
·
Do not work under distributor unless the wheels of the truck and distributor
are chocked, the distributor is on level ground, and the truck engine is shut
off. Failure to chock wheels of truck and distributor could cause serious
injury or death to personnel
·
An assistant must be in the truck cab at all times while checking brakes
under distributor to prevent truck movement. Failure to have an assistant
in truck cab to prevent truck movement could cause serious injury or death
to personnel.
·
Do not hook up distributor lunette or distributor safety chains while
checking brakes under truck. If distributor safety chains or lunette are
hooked up, the distributor could be dragged if the truck should move,
causing serious injury or death to personnel.
(8)
With the aid of an assistant, start truck and allow
air pressure to build up to 100 psi (689 kPa)
minimum.
(9)
Measure distance between center anchor pin (6)
and back of brake chamber (1) (measurement C)
with brake in released position. Record
measurement.
(10)
With the aid of an assistant, apply brakes while
measuring distance from center of anchor pin (6)
to back of brake chamber (1) (measurement D).
CAUTION
·
The adjusted stroke must not exceed 2 in. (50.8 mm) or damage to the brakes
may result.
·
The adjusted stroke should be as short as possible, but not so short that the
free stroke is less than 5/8 in. (16 mm).
NOTE
The difference between measurements D and C is the adjusted chamber stroke.
(11)
Turn adjusting nut (2) on slack adjuster (3) to adjust the brake. The adjusted stroke length must not exceed 2 in.
(50.8 mm).
4-266
