Install The Door Sprocket - Chamberlain LJ8950W Manual

Installation
1

Install the Door Sprocket

Remove existing door sprocket. You MUST use the door sprocket provided in order for
the door operator to function correctly.
The instructions below describe the general installation procedure. Refer to the door
manufacturer for specific instructions regarding your door.
LIVE SHAFT
1. Slide the door sprocket onto the end of the door shaft.
2. Mark and drill a hole through the door shaft.
3. Attach the door sprocket to the door shaft with the through bolt and nylock nut.
DEAD SHAFT
1. Slide the door sprocket onto the end of the door shaft.
2. Attach the door sprocket to the door drum with the through bolts, flat washers,
tubular spacers, and flange nuts.
Door Shaft
Door Shaft
Flange Nut
Flange Nut
Drum
Drum
Tubular Spacer
Flat Washer
Tubular Spacer
Flat Washer
Door
Door
Door Sprocket
Door Sprocket
Door Sprocket
Door Sprocket
9
Through
Bolt
Through
Door
Bolt
Sprocket
Door
Sprocket
Nylock
Nut
Nylock
Nut
Door Sprocket
Door Sprocket
Drum
Drum