ASA-5® SLACK ADJUSTER TROUBLESHOOTING CHART (Continued)
SYMPTOMS | CAUSE | REMEDY |
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2. Brakes dragging— | A. | A. Correct the |
apparent | improperly installed. Too |
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close to actuator: brakes |
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brakes. | can’t fully release. |
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| B. Loose actuator push rod | B. Reposition components and torque to |
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| jam nut. | specifi cation. |
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C.Spring brakes not fully C. Check spring brake release air pressure and
| retracting. | repair or replace air valving as necessary. |
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| Repair or replace spring brake. |
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D. | Broken foundation brake | D. Repair or replace as required per In Service |
| components, including | Inspection. |
| camshaft bushings. |
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E. | Vehicle brake torque | E. Check other brakes to ensure they are working. |
| imbalance. (More work | Check air pressure balance and threshold pres- |
| done by some brakes | sure (refer to Bendix publication |
| than others, thermal | driver braking habits, e.g. use of trailer control |
| expansion of drums). | valve. Use same friction material on all axles. |
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F. | Brake drum | F. Replace or repair as required. |
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| thermal expansion. |
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G. | Air system malfunction, | G. Inspect and correct. |
| not exhausting |
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| completely. |
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H. | New lining swells during | H. |
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