Emergency repairs
– 93 –
WARNING! Do not drive
vehicle with malfunctioning
brakes. If one of the brake
circuits should become
inoperative, braking dis-
tances will increase sub-
stantially and handling
characteristics while brak-
ing will be affected. You
could lose control of your
vehicle, be severely injured,
or cause an accident. Have it
towed to the nearest dealer
or qualified workshop for
repair.
You may sometimes have to release
your vehicle’s spring brakes by hand.
This could happen if the system air
pressure does not reach operating
pressure because your engine or com-
pressor is not working properly. You will
have to release the spring brakes at the
spring brake chambers.
WARNING! Do not disas-
semble a spring brake cham-
ber. These chambers
contain a powerful spring
that is compressed. Sudden
release of this spring can
cause you to be severely
injured.
• Do not operate a vehicle when
the spring brakes have been
manually released. Driving a
vehicle after its spring brakes
are manually released is
extremely dangerous. You will
probably have no brakes at all.
You could have a serious or fatal
accident.
• Releasing the spring brakes on
an unsecured vehicle could lead
to an accident. The vehicle could
roll, causing severe injury.
Always secure the vehicle with
wheel chocks, chains, or other
safe means to prevent rolling
before manually releasing the
spring brakes.
To move a vehicle immobilized by the
spring brakes due to loss of air pres-
sure in the brake system, perform the
following procedure:
1. Block the
wheels with
chocks.
2.Remove the
cap from the
spring chamber.
3. Remove the
release stud
assembly from
the side pocket,
and remove the
release nut and
washer from the
release stud.
PB1340A.book Page 93 Friday, September 1, 2000 7:40 AM
