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ST-45 PUMP —TROUBLESHOOTING (BRAKE SYSTEM)
Practically all breakdowns can be prevented by proper handling and maintenance inspections, but in the event of a breakdown, please take a remedial action following the diagnosis based on the Brake System Troubleshooting (Table 11) information shown below and on the proceeding page. If the problem cannot be remedied, please leave the unit just as it is and consult our company's business office or service plant.
TABLE 12. BRAKE SYSTEM TROUBLESHOOTING
SYMPTOM | POSSIBLE PROBLEM | SOLUTION | |
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| Overheated wheel bearing? | Replace wheel bearing and pack with grease. | |
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| Low brake fluid? | Fill and bleed brake system. | |
Brakes squeak, chatter or chuck. |
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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 fluid level? | Fill with dot approved brake fluid and bleed brake system. | |
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| Brake actuator frame damage? | Replace complete actuator unit. | |
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| Brake line being pinched? | Replace brake line. | |
Brakes overheah, fail to operate, pull |
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to the side, or function poorly | Seized actuator? | Replace or rebuild actuator. | |
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| Broken return spring? | Replace spring. | |
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| Brakes improperly adjusted? | Check adjustment. | |
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| Pry up on cable until indicator bead touches or rests against cable | ||
| partially activated? | spring stop. This will fully release the frame brakes and prevent | |
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| drag. | |
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PAGE 64 — MAYCO