Manuals / Brands / Household Appliance / Garage Door Opener / Chamberlain / Household Appliance / Garage Door Opener

Chamberlain 3110 1/3 HP, 3220 1/2 HP, 3220-267 1/2 HP Attach the Rail to the Header, Bracket

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INSTALLATION STEP 3

Attach the Rail to the Header

Bracket

	•	Position the opener on the garage floor below the
		header bracket. Use packing material as a
		protective base. NOTE: If the door spring is in the
		way you’ll need help. Have someone hold the
		opener securely on a temporary support to allow
		the rail to clear the spring.
	•	Position the rail bracket against the header
Header Wall		bracket.
Header Wall	•	Align the bracket holes and join with a clevis pin
Header Bracket	•	Align the bracket holes and join with a clevis pin
Rail Bracket		as shown.
	•	Insert a ring fastener to secure.

Ring Fastener

Header Bracket

Rail

Clevis Pin 5/16"x2-3/4"

Rail

Bracket

Rail

Garage

Door

Temporary

Support

HARDWARE SHOWN ACTUAL SIZE

Clevis Pin
5/16"x2-3/4"	Ring Fastener

Contents

For Residential Use Only Introduction Assembly Installation Adjustment Operation Preparing your garage door Tools needed Planning Carton Inventory Fasten the Rail to the Motor Unit Install the Trolley Attach the Rail Brackets Determine the Header Bracket Location Install the Header Bracket Attach the Rail to the Header Bracket Install The Protector System® INSTALLING THE BRACKETS Garage door track installation (preferred): Figure Wall installation (Figures 2 & 3): Floor installation (Figure 4): MOUNTING AND WIRING THE SAFETY SENSORS Recommended Wire Routing Do not use the lower (trolley) channels Position the Opener Hang the Opener Install the Door Control Install the Lights Attach the Emergency Release Rope and Handle Electrical Requirements Complete Safety Reversing Sensor Installation 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: MAINTENANCE SCHEDULE Once a Month Once a Year 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 and Reprogram an Additional 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: 59LM Outside Keylock: LIFTMASTER 1 YEAR LIMITED WARRANTY LIFETIME MOTOR WARRANTY (MODEL 3220) 2 YEAR LIMITED MOTOR WARRANTY (MODEL 3110)