Adjustment Section; Adjust The Travel Limits; Adjustments - B&D 1140 Instructions Manual

ADJUSTMENT STEP 1
Limit Adjustment
Run the opener through a complete travel cycle.
Force adjustments are not necessary when the door
opens and closes completely and doesn't reverse
unintentionally in the fully closed position.
Locate the button on the back panel of motor unit.
NOTE: if the operator stops or reverses and will not
allow the run through of a complete travel cycle, it
may be necessary for the operator to adjust the force
profile.
Push the button twice to enter into Force Setting
Mode. Proceed with limit setting.
NOTE: Repeated operation of the opener during
adjustment procedures may cause motor to overheat
and shut off. Allow a 15 minute cooling period after 5
continuous operations of the opener.
Read the following carefully before proceeding to
Force Adjustment. Use a screwdriver to make limit

adjustments.

If Door Doesn't Open Completely but Opens at
Least 1.5m (5 feet): Increase up travel. Turn the up
limit adjustment screw clockwise. One turn equals
5cm (2") of travel.
If door does not open at least 1.5m (5 feet).
Adjust force, see Force Adjustment: Place the
opener into the Force Adjustment Mode, see Force
Adjustment.
If Door Doesn't Close Completely: If door arm is at
maximum length, increase down travel. Turn down
limit adjustment screw counterclockwise. One turn
equals 5cm (2") of travel. If the door still will not
close completely, the header bracket is positioned
too high.
If Opener Reverses in Fully Closed Position:
Decrease down travel. Turn down limit adjustment
screw clockwise. One turn equals 5cm (2") of travel.
If Door Reverses when Closing and there is no
Interference to Travel Cycle: Test door for
binding. Pull manual release handle. Manually open
and close door. If door is binding, call a door
serviceman. If door is not binding or unbalanced,
place the opener into the Force Setting Mode, see
Force Settings.
PROCEED TO "FORCE SETTINGS" TO
COMPLETE STEP "LIMIT ADJUSTMENT". Forces
must be learned in order for limit adjustments to
operate properly.
114A2845
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Without a properly installed safety reversal system,
persons (particularly small children) could be
CAUTION CAUTION
SERIOUSLY INJURED or KILLED by a closing garage
door.
• Incorrect adjustment of garage door travel limits will
interfere with proper operation of safety reversal
system.
• If one control (force or travel limits) is adjusted, the
other control may also need adjustment.
• After ANY adjustments are made, the safety reversal
system MUST be tested. Door MUST reverse on
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contact with 40mm high object on floor.
CAUTION CAUTION
To prevent damage to vehicles, be sure fully open door
provides adequate clearance.
25
ARNING ING
ARNING ING
Limit Adjustment
Screws