Multiquip ST-45HRM manual ST-45 Pump -TROUBLESHOOTING Brake System, Brake System Troubleshooting

Models: ST-45HRM

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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

 

 

 

 

Overheated wheel bearing?

Replace wheel bearing and pack with grease.

 

 

 

 

Low brake fluid?

Fill and bleed brake system.

Brakes squeak, chatter or chuck.

 

 

Siezed acutator master cylinder?

Replace/Rebuild master cylinder.

 

 

 

 

 

Brake shoe noise?

Inspect drums. Adjust shoes or replace if necessary.

 

 

 

 

Leaking wheel cylinder?

Check and replace wheel cylinder and bleed brake system.

 

 

 

 

Low brake fluid level?

Fill with dot approved brake fluid and bleed brake system.

 

 

 

 

Brake actuator frame damage?

Replace complete actuator unit.

 

 

 

 

Brake line being pinched?

Replace brake line.

Brakes overheah, fail to operate, pull

 

 

 

 

to the side, or function poorly

Seized actuator?

Replace or rebuild actuator.

 

 

 

 

Broken return spring?

Replace spring.

 

 

 

 

Brakes improperly adjusted?

Check adjustment.

 

 

 

 

 

Break-away cable might be pulled. Determine cause and correct.

 

Break-away cable system

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

 

 

drag.

 

 

 

PAGE 64 — MAYCO ST-45HRM PUMP — OPERATION & PARTS MANUAL — REV. #4 (07/16/04)

Page 64
Image 64
Multiquip ST-45HRM manual ST-45 Pump -TROUBLESHOOTING Brake System, Brake System Troubleshooting