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

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10
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 pos-
sible to stop the door by hand during travel.
(3) Set
Scre
w
s
TO AVOID SERIOUS PERSONAL INJURY OR DEATH
FROM ELECTROCUTION, DISCONNECT ELECTRIC
POWER TO OPERATOR BEFORE ADJUSTING SLIP
CLUTCH.
CAUTION:
The torque limiter clutch is NOT an
automatic reversing device. A Reversing Device
can be added to bottom edge of door if desired.
ADJUST TORQUE LIMITER CLUTCH (OPTIONAL MODIFICATION)
WARNING
BRAKE
ADJUSTMENT
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.
Friction Pads
Release Le
v
er
Plate Assem
b
ly
Solenoid
Solenoid Brake System
Act
u
ator Plate