Chamberlain 3275, 3275-267 Carton Inventory, INSTALLATION HARDWARE

Carton Inventory

Your garage door opener is packaged in two cartons which contain the motor unit and all parts illustrated below. Accessories will depend on the model purchased. If

anything is missing, carefully check the packing material. Parts may be stuck in the foam. Hardware for installation is also listed below.

LOCK

LIGHT

Chain Spreader

		SECURITY✚®		SECURITY✚®
		SECURITY✚®		SECURITY✚®
	Multi-Function	3-Button Remote Control		SECURITY✚®
	Multi-Function	3-Button Remote Control		Keyless Entry
	Door Control Panel	Models 3275	(1)	Keyless Entry
	Door Control Panel	3275-267	(2)	Keyless Entry
		3275-267	(2)	Model 3275-267 Only
				Chain
				Styrofoam
				Remote Control
				Transmitter Visor Clip

Motor Unit with Light Lenses

ONLY

MOUNT

CEILING

UP

Header Bracket

One-Piece	Curved Door
T-rail	Arm Section

Chain

Pulley Bracket

Safety Sensor

Bracket (2)

Trolley

2 Conductor Bell Wire

White & White/Red

The Protector System®

(2) Safety Reversing Sensors

(1 Sending Eye and 1 Receiving Eye) with 2-Conductor White & White/Black Bell Wire attached

Door Bracket

Safety Labels

and

LiteratureStraight Door

Arm Section

INSTALLATION HARDWARE
Hex Bolt 5/16"-18x7/8" (4)	Self-Threading Screw 1/4"-14x5/8" (2)
Lag Screw 5/16"-9x1-5/8" (2)	Insulated Staples (10)
Lag Screw 5/16"-18x1-7/8" (2)	Ring Fastener (3)
Clevis Pin 5/16"x2-3/4" (1)	Drywall Anchors (2)
Clevis Pin 5/16"x1-1/4" (1)	Rail Grease
Clevis Pin 5/16"x1" (1)	Carriage Bolt 1/4"-20x1/2" (2)
Nut 5/16"-18 (4)	Wing Nut 1/4"-20 (2)
Lock Washer 5/16" (4)	Rope
Screw 6ABx1-1/4" (2)	Handle
Screw 6-32x1" (2)

5

Contents

Page Introduction2-5 Assembly Installation7-22 Adjustment23-25 Operation26-30 Preparing your garage door Tools needed Planning Carton Inventory Attach the to the Motor Unit Attach the Chain Spreader 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) (Figure 1): Wall installation (Figures 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 3. Connect the door arm to the trolley: 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: Repeat the safety reverse test (Adjustment Step 3, page 25) after any adjustment of limits or force MAINTENANCE SCHEDULE 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 (315 MHz) To Add, Reprogram or Change a Keyless Entry PIN Rail Assembly Parts Installation Parts Motor Unit Assembly Parts ACCESSORIES 1702LM Outside Quick Release: 374LM SECURITY✚® 4-ButtonRemote LIFTMASTER ONE-YEARLIMITED WARRANTY LIFETIME MOTOR LIMITED WARRANTY