LiftMaster GH GH -Mechanical New style w/ thermal overload change Manual - Page 7

I N S TA L L AT I O N MANUAL OPERATION This operator has provisions for manually operating the door in case of emergency or power failure. These operators are equipped with a manual hoist. An electrical interlock will disable the electrical controls when the hoist is used. WARNING To prevent possible SERIOUS INJURY from a moving chain, CAUTION ENGAGE interlock BEFORE manually operating your door. To operate the hoist: 1. Pull the disconnect chain (small chain) to engage the interlock to disable the controls. The disconnect chain may be locked in position by slipping the end through the keyhole of the chain keeper mounted on the wall. Chain Keeper (with pad locking provisions) 2. Operate the door in the desired direction by pulling on one side or the other of the continuous loop hoist chain (large chain). 3. The disconnect chain must be released from the chain keeper before the door will operate again electrically. AVERTISSEMENT ATTENTION ADVERTENCIA PRECAUCIÓN 7