TM
5-5420-226-20-1
DETAILED
TROUBLESHOOTING
PROCEDURE
Symptom-24
VEHICLE
OPERATION
- BRAKES
PARKING
BRAKES
CANNOT
BE APPLlED.
I
This procedure
is to be performed
by
two persons.
The
lead
person
is
referred
to
as
the
first
technician
and
shall
direct
the
activity
of the
second
person
called
the second
technician.
Y
,
Check
service
brake
system
pressure.
I
Second
Technician
(Operators
Station)
l Move transmission
shift lever to park
(P) position.
l Press brake pedal and observe pressure gage reading of
750 to 900 psi.
I
ls brake
system
pressure
750 to 900 psi?
I
See
Symptom
22
SERVICE
BRAKES
WILL
NOT
WORK
RIGHT.
QNO
BRAKE
PRESSURE
PEDAL
GAGE
I
TRANSMISSION
\
SHIFT
\
I
LEVER
OPERATORS
STATION
TA107O41
4-352