Page 1142 - Foton Workshop Manual - Auman EST-M

BR-10 Brake system – service brake (air pressure)

Failure phenomenon Possible reason Failure elimination

1. The push rod of brake chamber stretches out (too
Adjust or replace
long or bent to be stuck)
2. The return spring of brake shoe (broken off or too soft) change
3. The clearancebetween brake friction lining and By adjusting the brake to adjust the clearance
Braking dragging
brake drum (too small) between brake shoes

Dismount the braking shoe and grinding the
4. The brake shoe pin (rust) shoe pin shaft, copper sleeve as well as
adding some lithium base grease
Check the gas path or adjust the main brake
1.The brake shoe plate (without free travel)
valve push rod
2.Brake camshaft (burnt, stuck, with big return resistance) Replace the braking cam

Braking bite 3.Brake return spring (too soft or broken off) Replace the braking reset spring
4.Brake shoe and brake drum (with small clearance) Adjust the clearance

Polish hoof pin shaft, bushing, and adding a
5.Brake shoe (rust)
small amount of lithium base grease
1.Brake shoe (crooked and deformed) Replace the braking shoe
2.Brake shoe (with severe abrasion, and the copper
Replace the braking shoe
rivet head out of the surface of brake shoe.)

Wipe the surface of the brake shoes with
3. Brake friction lining(the friction material is not good or
Brake noise alcohol to remove oil, polished with coarse
the surface is too hard after friction and burning loss.)
sandpaper
4.Brake shoe rivet (loosened) Replace the rivet and pay attentions to the quality
5.The inner surface abrasion of brake drum (uneven
Use drum machine polishing brake drum
and the cylindrical degree is too large.)

Restart or replace the tyre according to the
1.Tire (uneven pressure or size mismatched)
requirements
2.Brake shoe (improperly installed) or return spring Tighten the locknut of braking shoe
(damaged) supporting pin and replace the reset spring
3. Brake friction lining(with improper joint) Adjust the friction plate joint surface

4.Left and right brake devices (improperly adjusted) Adjust the brake
Braking not stable
5. Brake lining (deteriorated) Replace the friction disc

Check the brake chamber diaphragm.
6.Brake chamber (failure)
Replace the broken parts
7. Brake lining (with oil) Clean it with gasoline and replace the hub oil seal

8. Brake backing plate (damaged) Replace the braking plate
9.The u-bolts of steel plate spring (loosened) Tighten the U-bolts

BR-010