Setting The Force - Craftsman 139.53939D Owner's Manual

ADJUSTMENT STEP 2
Setting the Force
The force setting button is located on the left panel
of the motor unit. The force setting measures the
amount of force required to open and close the door.
1. Locate the purple button on the left panel of the motor
unit (Figure 1).
2.. Push the purple button twice to enter the opener into
Force Adjustment Mode (Figure 2)° The LED (indicator
Light) will flash quickly.
3. Push the remote control or Smart Control Panel
TM
(Figure 3). The door will travel to the DOWN (close)
position. Push the remote control or Smart Control
Panel
TM
again, the door will travel to the UP (open)
position. Push the remote control or Smart Control
Panel
TM
a third time to send the door to the DOWN
(close) position.
The LED (indicator Light) will stop flashing when the
force has been leamed.
The opener has learned the forces required to open and
close your door.
The door must travel through a complete cycle, UP and
DOWN, in order for the force to be set properly. If the
opener cannot open and close your door fully, inspect
your door to insure that it is balanced properly and is not
sticking or binding See page 3, "Preparing your
garage door"
WARNING
Withouta properly installed safety reversalsystem, persons
(particularlysmall children)could be SERIOUSLY INJURED
or KILLEDby a closing garagedoor.
. Too much force on garagedoor will interferewith proper
operationof safety reversalsystem.
• NEVERuseforce adjustmentsto compensatefor a binding
or sticking garagedoor
• After ANY adjustmentsare made,the safety reversalsystem
MUSTbe tested_DoorMUST reverseon contact with1-1/2°
(3.8 cm) high object (or 2x4 laid flat) on floor
Figure 1
- Indicator Ught
Figure 2
-- Indicator Light
-- Black Sutton
-- PurpleButton
Figure 3
or
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