Hyundai HL955 Manual page 378

Item
Brake accumulator Brake accumulator
precharge check precharge check
※The axles and hydraulic
oil must be at operating
temperature for this
check.
Brake system leakage Brake system leakage
check check
Description
S t a r t a n d r u n e n g i n e fo r 3 0
seconds.
Stop engine and turn start switch to
ON and wait 5 seconds.
NOTE : Engine oil pressure lamp NOTE
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 should not
LOOK
come ON in 1~5 applications.
Start engine and operate at low
idle.
Observe cluster while applying
brake pedal with maximum force.
LOOK/LISTEN : Brake pressure LOOK/LISTEN
indicator must not come ON.
Start engine and wait 30 seconds.
Stop engine.
Wait 2 minutes.
Turn start switch to ON and wait 5
seconds.
LOOK : Brake oil pressure warning LOOK
lamp must not come ON within 2
minutes after stopping engine.
4-35
Service action
OK OK
Check completed.
NOT OK NOT OK
Make sure brake pedal is
not binding and keeping
brakes partially engaged.
Bleed brakes in group 3.
C h e c k b r a k e s y s t e m
pressure.
NOT OK NOT OK
If light comes ON with
e n g i n e r u n n i n g ,
accumulator has lost it's
c h a r g e . I n s p e c t a n d
recharge accumulator.
OK OK
Check completed.
NOT OK NOT OK
I f b r a k e l e a k a g e i s
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.