operators_manual

Table Of Contents
slack adjuster if proper stroke cannot be
maintained.
Operational checks of automatic slack
adjusters
1. Start the vehicle and get the air
system up to normal operating
pressure. Do not apply the parking
brake.
2. Apply pressure to the brake pedal
and measure the distance the air
chamber pushrod traveled.
3. Compare the results to the
specification to determine if the
automatic slack adjusters need
replacing.
WARNING!
Manual adjustment of automatic slack ad-
justers is a dangerous practice that could
have serious consequences. It gives the op-
erator a false sense of security about the ef-
fectiveness of the brakes. Contact the Serv-
ice Department at your dealership if the
stroke exceeds specifications. A stroke ex-
ceeding specifications may indicate a prob-
lem with the slack adjuster or the brake
foundation.
MAINTENANCE - Brake System
Y53-6096-1A1 (01/17) 163
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