LiftMaster GH GH LOGIC VERSION 2 Manual - Page 10
Adjust Torque Limiter Clutch Optional Modification, Brake, Adjustment - clutch adjustment
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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 adjusted, it should generally be possible to stop the door by hand during travel. (3) Set Screws WARNING TO AVOID SERIOUS PERSONAL INJURY OR DEATH FROM ELECTROCUTION, DISCONNECT ELECTRIC POWER TO OPERATOR BEFORE ADJUSTING SLIP CLUTCH. WARNING CAUTION: The torque limiter clutch is NOT an automatic reversing device. A Reversing Device can be added to bottom edge of door if desired. CAUTION BRAKE ADJUSTMENWT ARNING The brake is adjusted at the factory and should not need additional adjustment for the the life of the friction pad. Replace friction pads when necessary. Refer to the illustration for identification of components for the solenoid type brake system. Solenoid Brake System Plate Assembly Release Lever Friction Pads Solenoid Actuator Plate 10