LiftMaster LJ8950W LJ8950W Manual - Page 11
Mount the Door Operator continued, MOUNT THE DOOR OPERATOR AND ATTACH THE CHAIN
View all LiftMaster LJ8950W manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 11 highlights
Installation 2 Mount the Door Operator (continued) MOUNT THE DOOR OPERATOR AND ATTACH THE CHAIN 1. Raise the door operator to approximate mounting position. Align the drive sprocket with the door sprocket. NOTE: The drive sprocket can be mounted in one of three positions to aid in the alignment of the drive sprocket with the door sprocket. 2. Wrap the chain around the door sprocket and drive sprocket. 3. Connect the ends of the chain using the master link. 4. Raise or lower the door operator until the chain is taut but not tight. Make sure the door operator motor shaft is parallel to the door shaft. 5. Fasten the operator to the mounting surface with the appropriate hardware (not provided). 6. Tighten the drive sprocket bolts using a 5/32" Allen wrench. If the operator is mounted below 8 ft. (2.5 m), chain guard model 3950CGJ must be installed to protect against possible injury, see accessories page 30. LIVE SHAFT DOOR Chain DEAD SHAFT DOOR Chain Mounting Hardware (not provided) Mounting Hardware (not provided) Tighten drive sprocket 11