User Guide

ADJUST LIMITS
TO AVOID SERIOUS PERSONAL INJURY OR
DEATH FROM ELECTROCUTION, DISCONNECT
ELECTRIC POWER BEFORE MANUALLY
MOVING LIMIT NUTS.
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.
CLOSEOPEN
ADLSSLS
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
MIN. CLEARANCE
OF 2" FROM HIGH
ARC OF DOOR TO
BOTTOM OF TRACK
DOOR HEIGHT + 4' 1"
14 -3/4"
28-19/32"
16-11/16"
Ref.
12 -3/4"
Room Required
To Open
Hinged Electrical Box
12-1/8"
2
REFER TO PAGE 2 OF GT OWNER'S MANUAL
NEMA UNIT
WARNING