DCA-500SSK —TRAILER BRAKESTROUBLESHOOTING
Table 6. Air Brake Troubleshooting
Symptom | Possible Cause | Solution | |
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No Brakes | Brake line broken or kinked? | Repair or replace. | |
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Weak Brakes or Brakes | Brake lining glazed? | Reburnish or replace. | |
Pull to One Side |
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Trailer overloaded? | Correct weight. | ||
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| Brake drums scored or grooved? | Machine or replace. | |
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| Tire pressure correct? | Inflate all tires equally. | |
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| Tires unmatched on the same axle? | Match tires. | |
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Locking Brakes | Brake components loose, bent or | Replace components. | |
| broken? |
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| Brake drums | Replace. | |
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Noisy Brakes | System lubricated? | Lubricate. | |
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| Brake components correct? | Replace and correct. | |
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Dragging Brakes | Brake lining thickness correct or in | Install new shoes and | |
| right wrong position? | linings. | |
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| Enough brake fluid or correct fluid? | Replace rubber parts | |
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| fill with dot4 fluid. | |
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