Adjustment; Program The Travel Limits - LiftMaster MERIK SECURITY+ 790LMK Manual Del Propietário

ADJUSTMENT STEP 1

Program the Travel Limits

Travel limits regulate the points at which the door will stop
when moving up or down.
Adjust the position of the door by using the black and orange
buttons. Black moves the door UP (open) and orange moves the
door DOWN (close).
Figure 1
Black
Button
Antenna
Setting the UP position:
1. Press and hold the black button until the LED starts fl ashing
slowly, then release (Figure 2).
2. Push and hold the black button until the door reaches the
desired UP (open) position.
NOTE: Make sure the door opens high enough for your vehicle.
3. Push the door control or programmed remote control. This sets
the UP (open) limit and begins closing the door (Figure 3).
4. Immediately when the door begins to close, press and release
either the black or orange button. This will stop the door.
Setting the DOWN position:
5. Push and hold the orange button until the door reaches the
desired DOWN (closed) position.
6. Once the door is closed, if there appears to be too much
pressure on the door, you may toggle the door back and forth
using the black and orange buttons to reach the desired closed
position.
7. Push the door control or programmed remote control. This sets
the DOWN (close) limit and the door should open.
Proceed to Set the Force.
Without a properly installed safety reversal system, persons
(particularly small children) could be 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.
• NEVER use force adjustments to compensate for a binding or
sticking garage door.
• 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 contact with 38 mm
high object on fl oor.
Indicator
Light
Orange
To prevent damage to vehicles, be sure fully open door
Button
provides adequate clearance.
Figure 2
Figure 4
29
Push and hold
until the door
is at desired UP
position
BLACK
ORANGE
Figure 3
BLACK
ORANGE
Push either
button to stop
door at desired
DOWN position
or