Assembly; Attach The Drive Sprocket; Attach Mounting Brackets - LiftMaster LJ8950W Manuel

Assembly

1
Attach the Drive
Sprocket
The door operator can be installed on
either side of the door.
The drive sprocket can be installed on the
right or left side of the operator depending
on your installation. The drive sprocket can
be mounted in one of three positions to aid
in the alignment of the drive sprocket with
the door sprocket.
1. Insert the drive sprocket into the
motor shaft.
2. Align the center holes in the drive
sprocket with the hole in the motor
shaft.
3. Insert bolts into the motor shaft and
the drive sprocket.
4. Hand tighten the bolts.
2
Attach Mounting
Brackets
The operator can be mounted to the wall
with the mounting brackets provided. An
optional mounting bracket Model 3950MB
is available for purchase, see Accessories
page 30.
1. Position two mounting brackets on
each side of the operator.
2. Fasten the mounting brackets to the
operator using the self-threading
screws provided.
Motor
Shaft
Mounting Brackets
5
Drive Sprocket
Bolt
Bolt