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Chamberlain 3245 1/3 HP, 3255 1/2 HP, 3255-2 1/2 HP 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
	1	5
	1
	3
	4
	2	KEY	PART
		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

Installation Parts
	1		2	4
				4
	3
LOCK	LIGHT
	LIGHT
			LY
		NT	ON
		NT
		OU
		G M
		LIN
	7	CEI
		UP

	5
NOTICE	6
	6

10

8

11

9

12


KEY		PART
NO.		NO.	DESCRIPTION

1		41A5273-1	Multi-function door control panel
2		371LM	1 Button remote control
3		10A20	3V2032 Lithium battery
4		29B137	Remote control visor clip
5		41A2828	Emergency release rope and handle
			assembly
6		41B4494-1	2-Conductor bell wire, white and
			white/red
7		41A4353	Header bracket with clevis pin and
			fastener
8		41A5047	Door bracket with clevis pin and
			fastener
9		178B35	Curved door arm section
10		178B34	Straight door arm section
11		41A5034	Safety sensor kit (receiving and
			sending eyes) with 3' (.9 m)
			2-conductor bell wire
12		41A5266-1	Safety sensor brackets (2)
			NOT SHOWN
		41A2770-6	Installation hardware bag
			(includes hardware listed on page 5)
		114A3080	Owner’s manual
		114A3080SP	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 Rail to 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 REVERSING SENSORS ALIGNING THE SAFETY REVERSING SENSORS TROUBLESHOOTING THE SAFETY REVERSING 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-Mounted Door 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 My door will not close and the light bulbs blink on my motor unit: 2.My remotes will not activate the door: My door reverses for no apparent reason: 5.My lights will not turn off when door is open: 1 FLASH 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: 371LM 1-ButtonSecurity✚® Remote Control: LIFTMASTER ONE-YEARLIMITED WARRANTY FOUR-YEARMOTOR LIMITED WARRANTY