troubleshooting (hydraulic brakes)
Troubleshooting (Hydraulic Brakes )
Symptom | Possible Problem | Solution | |
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No brakes | Is the brake line broken or kinked? | Repair or replace. | |
| Is the brake lining glazed? | Reburnish or replace | |
| Is the trailer overloaded? | Correct weight. | |
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| Are the brake drums scored or | Check machine or replace. | |
Weak brakes or brakes pull to one side | grooved? | ||
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Is the tire pressure correct? | Infl ate all tires equally per manufacturer | ||
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| guidelines. | ||
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| Are the tires unmatched on the | Match tires. | |
| same axle? | ||
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| Are the brake components loose, | Replace components. | |
Locking brakes | bent or broken? | ||
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| Are the brake drums | Replace. | |
| Is the brake system lubricated? | Lubricate. | |
Noisy brakes | Are the correct brake components | Replace and correct. | |
| installed? | ||
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| Is the brake lining thickness correct | Install new shoes and linings. | |
Dragging brakes | or innstalled incorrectly? |
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Is there enough brake fl uid or | Fill with DOT 4 fl uid. | ||
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| correct fl uid? | ||
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| Overheated wheel bearing | Replace wheel bearing and pack with | |
| grease. | ||
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Brakes squeak, chatter or chuck | Low brake fl uid | Fill and bleed brake system. | |
Siezed acutator master cylinder | Replace/Rebuild master cylinder. | ||
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| Brake shoe noise | Inspect drums. Adjust shoes or replace if | |
| necessary. | ||
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| Leaking wheel cylinder | Check and replace wheel cylinder and | |
| bleed brake system. | ||
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| Low brake fl uid level | Fill with dot approved brake fl uid and bleed | |
| brake system. | ||
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| Brake actuator frame damage | Replace complete actuator unit. | |
| Brake line being pinched | Replace brake line. | |
Brakes overheat, fail to operate, pull to | Seized actuator | Replace or rebuild actuator. | |
the side, or function poorly |
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| |
Broken return spring | Replace spring. | ||
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| Brakes improperly adjusted | Check adjustment. | |
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| Determine cause and correct. Pry up on | ||
| cable until indicator bead touches or rests | ||
| activated | ||
| against cable spring stop. This will fully | ||
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| ||
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| release the frame brakes and prevent drag. |
page 76 — MAYCO LS600P CONCRETE PUMP • operation manual — rev. #0 (05/13/13)
