| Symptom |
Possible Cause |
Action |
|
1.0 Brake lining rubbing against drum with brake in released position. |
1.1 Actuator isn't fully extended 1.2 Not enough working stroke 1.3 Drum not running true 1.4 Brake movement seized or blocked 1.5 Clearance not equal |
See Item 2.0 Reset stroke Check, correct as necessary Free all pivot points Re-center brake on drum |
| Servicing | ||
| 2.0 Actuator not fully extending |
2.1 Improper brake spring setting 2.2 Lack of fluid 2.3 Wrong fluid 2.4 Wrong voltage to actuator motor |
Re-adjust spring length per data sheet Fill to the lower edge of the inlet opening with the actuator retracted Replace with correct fluid type Supply voltage must conform to voltage specified on actuator data plate |