Chamberlain 1270LMC All ONE-PIECEDoor Installation Procedure

All ONE-PIECE Door Installation Procedure

Please read and comply with the warnings and reinforcement instructions on page 20. They apply to one-piece doors also.

Header Wall

2x4	– Finished Ceiling –

Header

Bracket

Door

Bracket

Vertical

Centerline of

Garage Door

Horizontal and vertical

reinforcement is needed for

lightweight garage doors (fiberglass, aluminum, steel, door with glass panel, etc.).

Inside Edge

of Door or

Reinforcement Board

Door

Bracket

Door Bracket

Plate

•Center the bracket (with or without the plate according to your fastening requirements) on the inside face of the door, in line with the header bracket as shown. Mark either the left and right, or the top and bottom holes.

•Drill 5/16" pilot holes and fasten the door bracket with hardware supplied.

Hardware Shown Actual Size

Nut 5/16"-18

Lock Washer 5/16"

Carriage Bolt

5/16"-18x2-1/2"

Contents

Page CONTENTS PAGE Assembly Section - Pages 6 – Installation Section - Pages 8 – Adjustment Section - Pages 24 – Page Sectional Door Installation One-PieceDoor Installation One-PieceDoor without Track One-PieceDoor with Track Installation Hardware Safety Reversing Sensor Attach the T-railto the Opener Set the Belt Tension Attach the Belt Cap Retainer Determine Header Bracket Location ONE-PIECEDoor Without Track Install the Header Bracket Attach the T-railto the Header Bracket Position the Opener Hang the Opener Install the Multi-Function Door Control Panel Install the Lights and the Lenses Attach the Manual Release Rope and Handle Electrical Connections Figure 1: Install the Safety Reversing Sensor Trouble Shooting Fasten Door Bracket All ONE-PIECEDoor Installation Procedure Connect Door Arm to Trolley All ONE-PIECEDoors Assemble the Door Arm: Adjustment Procedures for One-PieceDoors Open Door Adjustment: Decrease UP limit Adjust the UP and DOWN Limits Adjust the Force Test the Protector System® Test the Safety Reverse System Limit and force adjustment controls Maintenance Schedule Operation of the Door Controls To Add A Remote To Erase All Remote Control Codes All the codes the opener has learned will be erased Code programming instructions are also located on the opener panel Situation Probable Cause & Solution The opener doesn't operate from either the Door Control or the remote control: Opener operates from the remote, but not from Door Control: The door operates from the Door Control, but not from the remote control: (continued) Rail Assembly Parts Installation Parts Opener Assembly Parts Model 1702LMC Outside Quick Release: Remote Control: Outside Keylock: "Smart" Remote Control: 8 foot Complete Rail: Access Door/Outside Quick Release Accessory Garage Door Manual Release Rope & Handle Opener Terminals Receiver and Remote Controls LIFT-MASTERGARAGE DOOR OPENER FIVE-YEARLIMITED WARRANTY