Maintenance & Adjustment
D760.H03E-001.H1907 177
Maintenance and Adjustment of Brake
Manual adjuster
Check the maintenance period refer to
page 208
Normal inspection
Every 5,000km
Clearance between friction plates of brake drum
and brake shoe:
At the center of brake shoe: 0.3-0.5 mm
Limit wear of brake drum: 2mm;
See the limit marks on both sides of the friction
sheet.
Method of local adjustment
1. Fit the ring spanner over the worm shaft
head, rotate the worm shaft to make the
friction plate contact the brake drum, and
then rotate the worm shaft in reverse
direction by 1/2 turn. The brake drum should
rotate freely without contacting any part at
this moment.
2. Check that the push rod travel of the brake
chamber is within 25±5 mm.
CAUTION:
1.Check the brake clearance frequently and adjust it in time if the braking
is weak. Attention should be paid to the followings during adjustment:
2.Never change the push rod travel by tightening the connecting fork of
brake chamber.
3.To adjust the rear brake, always park the vehicle on flat place and
ensure the air reservoir pressure is above 700 kPa.
4.Use the triangular blocks to chock the wheels at the front and back, and
after releasing the parking brake, adjust the rear brake clearance.
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