A D J U S T M E N T
ADJUST TORQUE LIMITER CLUTCH (OPTIONAL MODIFICATION)
1.Loosen set screws on clutch nut.
2.Back off clutch nut until there is very little tension on the clutch spring.
3.Tighten clutch nut gradually until there is just enough tension to permit the operator to move the door smoothly but to allow the clutch to slip if the door is obstructed. When the clutch is properly adjusted, it should generally be possible to stop the door by hand during travel.
BRAKE ADJUSTMENT
The brake is adjusted at the factory and should not need additional adjustment for the the life of the brake assembly.
Replace brake assembly when necessary. Refer to the illustration for identification of components for the solenoid type brake system.
(3)Set Screws
Brake
Plate Assembly
Release Lever
Solenoid
Brake Assembly
Actuator Plate
9