3585 Elite Series Manual
Page 6
... ASSEMBLY STEP 2 Set the Belt Tension • By hand, thread the spring trolley nut on the threaded shaft until the spring releases and snaps the nut ring against the trolley (Figure 2). • Place a 7/16" open end wrench on the square end. Liftmaster Synchro Drive • Cut tape from ... the washered bolt and lock nut previously removed. This extends the spring for optimum belt tension. ASSEMBLY STEP 1 Attach the Rail to the Motor Unit To avoid installation difficulties, do not run the garage door opener until instructed to do so. • Remove the bolt and lock nut from...
... ASSEMBLY STEP 2 Set the Belt Tension • By hand, thread the spring trolley nut on the threaded shaft until the spring releases and snaps the nut ring against the trolley (Figure 2). • Place a 7/16" open end wrench on the square end. Liftmaster Synchro Drive • Cut tape from ... the washered bolt and lock nut previously removed. This extends the spring for optimum belt tension. ASSEMBLY STEP 1 Attach the Rail to the Motor Unit To avoid installation difficulties, do not run the garage door opener until instructed to do so. • Remove the bolt and lock nut from...