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7
Ch
a
d j u S t i n G lim it Sw i t C h e S
a n d fo R C e Co n t R o l S
Adjustment 1:
A CLOSE ADJUSTMENT
• On front panel of Power Head find adjusting screw
marked “CLOSE” (Figure MA-1).
• Gently turn screw counterclockwise until it stops.
– Very little force is required to turn adjusting screw.
• Press Wall Console to close garage door.
– Observe if door stops at “CLOSE” limit switch.
(Figure MA-2). If door is fully closed—adjustment is
finished. Go to “OPEN” Adjustment.
– If door stops but is not fully closed,
a. Measure distance between bottom of door
and floor.
b. Move “CLOSE” Limit Switch that same distance
toward door.
– If door stops and/or reverses before reaching the
“CLOSE” Limit Switch
a.
Slightly increase CLOSE Force setting (clockwise).
– If door reverses after contacting floor, move Limit
Switch toward Power Head.
– If door fails to move, check Safe-T-Beam® System.
See Troubleshooting Section, pages 10-11.
• Tighten Limit Switch Set Screw. Do not over-tighten
(strip) Limit Switch Set Screw.
B OPEN ADJUSTMENT
• On front panel of Power Head find adjusting screw
marked “OPEN” (Figure MA-1).
• Gently turn screw counterclockwise until it stops.
– Very little force is required to turn adjusting screw.
•
Press Wall Console to close garage door.
– Observe if door stops at “OPEN” limit switch.
(Figure MA-2). If door is fully open—adjustment
is finished.
– If door stops but is not fully open,
a. Measure distance between bottom of door
top of door opening.
b. Move “OPEN” Limit Switch that same distance
toward Power Head.
– If door stops before reaching the “OPEN”
Limit Switch
a.
Slightly increase OPEN Force setting (clockwise).
– If door fails to move, see Troubleshooting Section,
pages 10-11.
• Tighten Limit Switch Set Screw. Do not over-tighten
(strip) Limit Switch Set Screw.
C Run Door Opener
• Cycle opener a few times to double check settings.
Repeat adjustment steps as necessary.
WARNING:
• A moving garage door can cause serious injury or death.
• Keep the path clear.
• Position the ladder to the side of the Power Head so it is
clear of all moving parts of the Opener and the door.
• Set the door Opener to use the minimum force needed
to open the door.
NOTE
• Little effort is required to turn the Force
Adjusting Knobs.
• If the door stops moving while opening or
closing, adjust the Open Force or Close Force
Controls slightly clockwise (to slightly
increase the force) and retry the step.
• The Open Force and Close Force Controls are to
be set to the minimum force necessary to
ensure the door smoothly opens and
closes completely.
• Ensure the Carriage Assembly is engaged and is
between the two Limit Switches before
operating the Opener.
Figure MA-1 Making Force Adjustments
OPEN
CLOSE
OPEN
CLOSE
FORCE
CONTROLS
ma i n t e n a n C e a n d ad j u S t m e n t S
Figure MA-2 Making Force Adjustments
OPEN
CLOSE
OPEN
CLOSE