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Item
Brake accumulator
precharge check
※The axles and hydraulic
oil must be at operating
temperature for this
check.
B
B
rake system leakage
check
Description
Start and run engine for 30
seconds.
Stop engine and turn start switch
to ON and wait 5 seconds.
NOTE : Engine oil pressure lamp
will be on due to no engine oil
pressure.
Count the number of times the
brake pedal can be fully depressed
before the low brake pressure
warning lamp comes ON.
LOOK : Warning lamp must come
on over 20 times of applications.
Start engine and operate at low
idle.
Observe cluster while applying
brake pedal with maximum force.
LOOK/LISTEN : Brake pressure
indicator must not come ON.
Start engine and wait 30 seconds.
Stop engine.
Wait 2 minutes.
START
Turn start switch to ON and wait 5
ON
OFF
seconds.
LOOK : Brake oil pressure warning
lamp must not come on within 2
minutes after stopping engine.
4-35
Service action
OK
Check completed.
NOT OK
Make sure brake pedal is
not binding and keeping
brakes partially engaged.
Bleed brakes in group 3.
Check brake system
pressure.
NOT OK
If light comes on with
engine
running,
accumulator has lost it's
charge.
Inspect and
recharge accumulator.
OK
Check completed.
NOT OK
If
brake
leakage
indicated with brakes
released, check leakage at
accumulator inlet check
valve and brake valve. If
brake leakage is indicated
with brakes applied, check
for leakage at brake valve
and brake pistons.
Check individual
component leakage.
is
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