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ADJUSTMENT STEP 2
AdjusttheForce
Forceadiustment controls are located on the right panel
of the motor unit. Forceadjustment settings regulate the
amount of power required to openand close the door.
!t the forces are set too light, door travel may be
interrupted by nuisance reversals in the down direction
andstops in the up direction. Weather conditions can
affect thedoor movement, so occasional adjustment may
be needed.
The maximum forceadjustment range is about3/4 of a
completeturn.Do notforce controlsbeyondthat point.
Turn force adjustment controls with a screwdriver.
NOTE:If anything interferes with thedoor's upward travel,
it will stop. tf anything interferes with the door's downward
travel (including binding or unbalanced doors), it will
reverse,
HOW AND WHEN TO ADJUST THE FORCES
1. Test the DOWN(close) for¢e
, Grasp the door bottom when the door is about
halfway through DOWN (close) travel. The door
should reverse, Reversal halfway through down
travel does not guarantee reversal on a 1-!/2"
(3.8 cm) obstruction. SeeAdjustment Step 3,
page30. Ifthe door is hard tohold ordoesn't
reverse, DECREASEthe DOWN (c_ose)force by
turning thecontrol counterclockwise, MakesmaII
adjustments until the door reverses normally.
After each adjustment, runthe opener through a
complete cycle.
• If the doorreversesduring the down (close) cycle
and the opener lights aren't flashing, iNCREASE
DOWN(close) force by turning the control
clockwise. Makesmall adjustments until the door
compEetesa close cycle. After each adiustment, run
the openerthrough a complete travel cycle. Do not
increase the torce beyond theminimum amount
required to close the door.
2. Testthe UP (open) force
- Graspthe door bottom when the door is about
halfway through UP (open) travel. The door should
stop. if the door is hardto holdor doesn'tstop,
DECREASEUP (open) force by turning the control
counterclockwise. Makesmall adiustments until
the door stops easilyand opens fully. After each
adjustment, run the openerthrough acomplete
travel cycle.
• If the door doesn't open at least5 feet (1.5 m),
INCREASEUP(open) force by turning the control
clockwise. Makesmall adjustments until door opens
completely. Readjustthe UP limit if necessary.
After eachadjustment, run the opener through a
complete travei cycle.
Without a properly installed safetyreversal system,
perso_ts(particularIy small children) could be
SERIOUSLYiNJUREDor KILLED by actosing garage
door.
* Too much force ongarage door will interfere with
proper operation ofsafety reversal system.
- NEVERincreaseforce beyond minimum amount
requiredto close garagedoor.
* NEVERuse force adiustments to compensate for a
binding or sticking garage door.
. If one control (force or travel limits) is adjusted, the
other control may also needadiustment.
o After ANY adjustments are made, the safety
reversalsystem MUST betested. Door MUST
reverse oncontact with t-1/2" high (3.8 cm) object
(or 2x4 laid fiat) on floor.
Force Adjustment Conlrols
Right Panel
Antenna
FORCEADJUSTMENT LABEL
29
OpenForce CloseForce
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