LiftMaster LJ8950W LJ8950W Manual - Page 9
Install the Door Sprocket, LIVE SHAFT, DEAD SHAFT
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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. Through Door Bolt Door Sprocket Door Shaft Nylock Nut Door Sprocket 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. Flange Nut Door Sprocket Drum Drum Tubular Spacer Flat Washer Door Sprocket 9
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