lift-master htc Manuel D’Utilisation

MAKE SURE THE LIMIT NUTS ARE POSITIONED
BETWEEN THE LIMIT SWITCH ACTUATORS
BEFORE PROCEEDING WITH ADJUSTMENTS.
1. Depress open limit switch. The operator should stop.
2. To  increase door travel, spin nut away from

actuator. To decrease door travel, spin limit nut
toward actuator.

3. Adjust open limit nut so that door will stop in open

position with the bottom of the door even with top of
door opening.

4. Repeat Steps 1 and 2 for close cycle. Be sure close

limit actuator is engaged as door fully seats at the
floor.

If other problems persist, call our toll-free number for
assistance - 1-800-528-6563.

CLOSE

OPEN

ADLS

SLS

OLS

CLS

Open Limit

Nut

Travel Nut

Retainer

Close Limit

Nut

Actuator

Actuator

Open Limit

Switch

Close Limit

Switch

Press Travel Nut Retainer

DOWN Toward Frame

TO DISENGAGE

DOOR HEIGHT + 4' - 5/8"

16-5/8"

MIN. CLEARANCE
OF 2" FROM HIGH
ARC OF DOOR TO
BOTTOM OF TRACK

13-7/16"

2-1/32"

5-1/2" 3-15/16"

3/4"

1-3/8"

26-5/8"

17-1/4"

MAX.

12-1/8"

Room required to open

hinged electrical box

7-1/2 "

2