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Abrupt braking
In the event of an emergency, depress the brake pedal all the way. The brakes are applied to all wheels and the vehicle
stops abruptly. Be careful of strong shock produced when the vehicle stops.
CAUTION:
Frequent use of abrupt braking will result in premature wear of the tires, brake drums, brake linings and other parts and
will reduce the life of all parts. Avoid use of abrupt braking except in an emergency. When the road surface is wet as in
rainy weather or when there is ice on the road surface, abrupt braking can cause hazardous skidding.
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Depress the brake pedal about 1/2 of the way at a point 25 to 35 m (28 to 38 yd) ahead of the target stopping point.
At a point 5 to 6 m (5.5 to 6.5 yd) ahead of the target stopping point, slowly release the pedal (about 1/2 to 1/3 of the
initial stroke). After the vehicle has further approached the target point, slightly depress the pedal to bring the vehicle to
a stop. In this manner the vehicle can be gently stopped without shock.
Pay attention to the following points:
●
Since the service brakes provide powerful braking, there is no need for depressing the brake pedal all the way ex
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cept in an emergency.
●
If the vehicle is stopped with the initial foot
pressure on the brake pedal, shock will be produced when the vehicle
stops. Slowly ease foot pressure to minimize the shock. If the brake pedal is fully released, however, all the air in the
brake system will be discharged and the vehicle may not stop at the target
point but may move further ahead.
●
Do not pump the pedal. Frequent pumping will
result in temporary loss of the air and the vehicle will move on. In a
congested traffic, there is danger of bumping into the rear end of another vehicle ahead. Try to stop the vehicle by de
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pressing the pedal once.
●
On air over hydraulic brake vehicles, if the buzzer sounds and BRAKE pilot lamp lights when the pedal is depressed,
stop the vehicle immediately. It is the sign of fluid leaks or low brake performance due to excessive brake shoe clear
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ance. Call the nearest service shop for inspection and repair.
The brake system is a completely dual system. Even if fluid leaks occur in one of the circuits, therefore, the vehicle can
be stopped through use of the other circuit.
OWNER
’
S MANUAL
JAC HEAVY DUTY TRUCK
