SECT 7—SETTINGS (FORCE & LIMITS)
FOR
CAUTION
Door opens rapidly
•Keep clear of door and its path.
•Keep ladder to side of power head to
prevent being hit by moving parts.
Be sure and set force adjustments at minimum required to operate door.
1.Set limit switch position.
•Check door fully closed.
–If not, close door manually.
•Check carriage is between limit switches.
–If not, move “CLOSE” limit switch (brown wire) to new position between door and carriage.
–Slide “CLOSE” limit switch back toward carriage until lever is fully lifted. Fig.
–Tighten limit switch set screw.
•Manually open door to fully open position..
•Check carriage is between limit switches.
–If not, move “OPEN” limit switch to new position between power head and carriage.
–Slide “OPEN” limit switch back toward carriage until lever is fully lifted. Fig.
–Tighten limit switch set screw.
2.Adjust opening force.
•Engage Carriage by pulling Emergency Release Lever toward Powerhead until Lever snaps into engaged position.
•On front panel of power
•Turn screw gently counterclockwise until it stops.
NOTE: Little force required to move adjusting screws.
•Run operator using wall control.
•Observe door runs to “CLOSE” limit switch.
–If not, increase closing force by turning “CLOSE” adjusting screw clockwise slightly (about 1/16 turn).
•Repeat until door runs to “CLOSE” limit switch.
•Check door is fully closed.
–If not, move “CLOSE” limit switch toward door as necessary to achieve fully closed.
3.Adjust closing force.
•On front panel of power
•Turn screw gently counterclockwise until it stops.
•Run operator using wall control.
•Observe door runs to “OPEN” limit switch.
–If not, increase opening force by turning “OPEN” adjusting screw clockwise slightly (about 1/16 turn).
•Repeat until door runs to “OPEN” limit switch.
•Check door is fully open.
–If not, move “OPEN” limit switch toward power head as necessary to achieve fully open.
lever (actuator arm)
fully liftedSLIDE
SWITCH
CARRIAGE 
Fig.
CLOSE
OPEN 
Fig.
NOTE:
When the garage door is closing and contacts a vehicle or other obstruction, the contact reverse mechanism may not prevent damage to the obstruction, garage door or garage door operator.
27
