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Chamberlain 1255-2R Rail Assembly Parts, Installation Parts, NO, NO, NO, NO, KEY, KEY, PART, PART, DESCRIPTION, DESCRIPTION, REPAIR PARTS

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REPAIR PARTS

Rail Assembly Parts

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5

3

2

Installation Parts

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		KEY	PART
		NO.	NO.	DESCRIPTION

		1	4A1008	Master link kit
	6	2	41A4813	Chain pulley bracket
	6	3	41A3489	Complete trolley assembly
		3	41A3489	Complete trolley assembly
		4	1707LM	One-piece rail
		5	41D3484	Full chain assembly
		6	83A11-2	Rail grease

1	2
	2
	3
	7
5	6
	6

NOTICE

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	LY
NT	ON
NT
OU
G M
LIN
CEI
UP

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KEY	PART
NO.	NO.	DESCRIPTION

1	41A4166	Door control button
2	971LM	Single-button remote control
3	10A20	3V2032 Lithium battery
4	29B137	Transmitter visor clip
5	41A2828	Emergency release rope & handle
		assembly
6	41B4494-1	2-conductor bell wire – white & white/red
7	41A4353	Header bracket w/clevis pin & fastener
8	41A5047	Door bracket w/clevis pin & fastener
9	41A5034	Safety sensor kit (receiving and sending
		eyes) with 3' 2-conductor bell
		wire attached
10	178B34	Straight door arm section
11	178B35	Curved door arm section
12	41A5266-1	Safety sensor brackets (2)
		NOT SHOWN
	41A2770-6	Installation hardware bag (see page 5).
	114A2648	Owner's manual
	114A2648SP	Owner’s manual - Spanish

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Contents

For Residential Use Only Introduction Assembly Installation Adjustment Operation Preparing your garage door Tools needed Planning Carton Inventory Attach the Rail to the Motor Unit Attach the Chain to the Sprocket and Install the Sprocket Cover Tighten the Chain Determine the Header Bracket Location Install the Header Bracket Attach the T-Railto the Header Bracket Position the Opener Hang the Opener Install the Door Control Install the Light Attach the Emergency Release Rope and Handle Electrical Requirements Install The Protector System® INSTALLING THE BRACKETS Garage door track installation (preferred): Wall installation (Figure 2 & 3): Floor installation (Figure 4): MOUNTING AND WIRING THE SAFETY SENSORS ALIGNING THE SAFETY SENSORS TROUBLESHOOTING THE SAFETY SENSORS Fasten the Door Bracket ONE-PIECEDOORS Metal Doors: Connect Door Arm to Trolley ALL ONE-PIECEDOORS 1.Assemble the door arm, Figure 4: 2.Adjustment procedures, Figure 5: •Open door adjustment: decrease UP travel limit •Closed door adjustment: decrease DOWN travel limit Adjust the UP and DOWN Travel Limits Adjust the Force Test the Safety Reversal System Test The Protector System® Using Your Garage Door Opener Using the Wall-MountedDoor Control To Open the Door Manually CARE OF YOUR OPENER LIMIT AND FORCE ADJUSTMENTS: THE REMOTE CONTROL BATTERY Repeat the safety reverse test (Adjustment Step 3, page 25) after any adjustment of limits or force HAVING A PROBLEM 1. My door will not close and the light bulbs blink on my motor unit: 2. My remotes will not activate the door: 3. My door reverses for no apparent reason: 1 FLASH 2 FLASHES 3 FLASHES 4 FLASHES 5 FLASHES To Add or Reprogram a Hand-heldRemote Control To Erase All Codes From Motor Unit Memory *3-ButtonRemotes To Add, Reprogram or Change a Keyless Entry PIN Rail Assembly Parts Installation Parts Motor Unit Assembly Parts ACCESSORIES 1702LM Outside Quick Release: 1708LM 8 Foot Complete Rail: 1710LM LIFTMASTER ONE-YEARLIMITED WARRANTY FOUR YEAR MOTOR LIMITED WARRANTY