Page 1141 - Foton Workshop Manual - Auman EST-M

Brake system – service brake (air pressure) BR-9

Failure phenomenon list IN

Use the list below to help you find the reasons of failures. The number represents the order of failure reason
possibility Check each part according to the order DI
Replace the parts if necessary

Failure phenomenon Possible reason Failure elimination EG

1. Brake drum (horn shaped) Replace the braking drum
TR
Braking shoe leaf in 2. Brake backing plate (crooked and deformed) Replace the braking plate

poor contact with
3. Brake shoe (crooked and deformed) Replace the braking shoe AX
braking drum/braking
shoe leaf Replace the adjusting spline nut and check
4. Wheel bearing (loose)
eccentric wear the end clearance FR

5. Camshaft (abrasive or damaged) Replace the camshaft
ST
Braking shoe block not 1. Brake shoe (with friction or type mismatch) Replace the correct type of braking shoe leaf

matching
2. Brake shoe (crooked and deformed) Replace the braking shoe
BR
1. The cam and roller (with spots) Replace the cam and roller
Braking part worn 2. Locating pin (abrasion) Replace the positioning pin BW

3. Camshaft or camshaft bush (abrasive) Replace the camshaft or camshaft bushing
EL
1. Brake shoe (friction type mismatched) Replace the correct type of braking shoe leaf

2. Camshaft (with phenomenon of winding and grip) Clean and lubricate the camshaft

3. The surface condition of brake drum (poor) Replace the braking drum

Two sides of coaxial
4. Wheel bearing (loose) Adjust the spindle nut and check the end clearance
brake worn not even
5. Go down a slope with slight resistance to reduce Use the buffering method to brake when
speed driving down a slope

6. Braking clearance on both sides (the adjustment is
Adjust the two side braking clearance to the same
not uniform)

1. The width of brake shoe (incorrect) Replace the braking shoe

Braking shoe leaf 2. Brake drum (mismatched) Replace the braking drum

edge worn
Replace the bearing socket and shaft end nut,
3. Bearing (loosened)
and check the end clearance

BR-009