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Adjustment procedure
1. With scale, measure the travel length
of brake chamber push–rod from the
released position to the fully depressed
position, if the measured value
exceeds the standard(front:33~35mm,
rear:35~38mm.), adjust the clearance.
2. Jack up and check the wheels rotate
smoothly without any resistance.
3. Remove the rubber plug fitted in the
brake lining inspection hole.
4. By rotating the wheel with hand, turn
the worm–shaft of the slack–adjuster
to the direction in which the brake
shoe expands until the brake drum
drags by contacting with the brake
lining, then turn the worm–shaft to
reverse direction until the clearance
becomes to the standard value.
The standard clearance is 0.3mm,
check the clearance by inserting the
thickness gage between the brake
lining and drum.
5. After ajustment, check again that the
brake chamber push–rod travel length
is front:33~35mm, rear:35~38mm.
Full Air brake with auto slack-
adjuster(OPTION)
For the vehicle on whick auto slack-
adjuster applied, ajustment of brake
lining clearance is not necessary in
normal, but periodical chekc and
inspection should be done for the
longer service life and safety.
If the protruded point of the indi-
cator comes into contact with the
stopper by turning the worm–shaft
for adjustment, it indicated that the
lining has been worn to the limit
and should be replaced.
NOTE
Full air brake with mechanical slack–adjuster
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