Assembly; Attach The Collar To The Garage Door Opener; Attach Mounting Bracket To Garage Door Opener - Merlin Commander Ultimate MJ3800MYQ Installation And Operating Instructions Manual

Assembly

1

Attach the Collar to the Garage Door Opener

The garage door opener can be installed on either side of the door (see Planning section
page 4). The illustrations shown are for installation on the left side.
1. Loosen the set screws.
2. Attach collar to the garage door opener motor shaft. The side of the collar with the
larger hole should be placed on the motor shaft. Ensure that the collar is seated all
the way on motor shaft until stop is reached.
3. Position the collar so the screws are facing out and are accessible when attached to
the torsion bar.
4. Securely tighten the 2 square head set screws closest to the motor shaft by turning
the screws 1/4 - 1/2 turn after making contact with the motor shaft.
2

Attach Mounting Bracket to Garage Door Opener

1. Loosely attach slotted side of mounting bracket to the same side of the garage door
opener as the collar, using screws provided.
NOTE: Do not tighten screws until instructed.
Motor
Shaft
Collar
Set
Screws
Socket Wrench
8
To prevent possible SERIOUS INJURY
or DEATH, the collar MUST be properly
tightened. The door may NOT reverse
correctly or limits may be lost due to
collar slip.
HARDWARE
Screw
#10-32 (2)