INSTALLATION STEP 3

Attach the Rail to the Header Bracket

•Position opener on garage floor below the header bracket. Use packing material to protect the cover. Raise rail until holes in the header sleeve and holes in the header bracket align. Join with clevis pins. Insert ring fasteners to secure.

NOTE: To enable the rail to clear sectional door springs, it may be necessary to lift opener onto a temporary support. The opener must either be secured to a support or held firmly in place by another person.

Header Wall

Header Bracket

Ring Fastener

Header

Ring Fastener

Sleeve

Bracket

Clevis Pin

Clevis Pin

8mm x 13mm

8mm x 13mm

 

Header Sleeve

 

Bracket

 

 

Rail

Garage Door

Temporary Support

Clevis PIn

8mm x 13mm (2)

Ring fastener (2)

HARDWARE SHOWN

ACTUAL SIZE

INSTALLATION STEP 4

Position the Opener

Follow instructions which apply to your door type as illustrated.

SECTIONAL DOOR OR ONE-PIECE DOOR WITH TRACK

A 25 mm board laid flat is convenient for setting an ideal door-to-rail distance.

•Raise the opener onto a stepladder. You will need help at this point if the ladder is not tall enough.

•Open the door all the way and place a 25mm board laid flat on the top section beneath the rail.

•If the top section or panel hits the trolley when you raise the door, pull down on the trolley release arm

to disconnect inner and outer sections. Slide the outer trolley toward the motor unit. The trolley can remain disconnected until Installation Step 12 is completed.

Trolley

Release Arm

ENGAGEDRELEASED

CAUTION

To prevent damage to garage door, rest garage door opener rail on 25mm board or equivalent placed on top section of door.

114A2845

15

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Chamberlain 1146 Attach the Rail to the Header Bracket, Position the Opener, Sectional Door or ONE-PIECE Door with Track
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1155, 1156, 1140, 1150, 80ad specifications

The Chamberlain 1160JG, 1160, 1146, 120AD, and 1145 garage door openers are some of the most reliable and feature-rich options available in today’s market. These models are renowned for their robust performance, user-friendly interface, and advanced technology, making them a top choice for homeowners seeking convenience and security.

The Chamberlain 1160JG and 1160 models stand out with their powerful DC motor, which ensures a smooth and quiet operation. They are designed for faster opening speeds, allowing users to enter and exit the garage quickly. One of the prominent features of these models is the built-in myQ technology, which enables remote access and control via smartphone applications. Users can monitor their garage door status, receive alerts, and operate the door from virtually anywhere, enhancing convenience and peace of mind.

The Chamberlain 1146 model combines strength and reliability, equipped with a durable chain drive system. This model offers exceptional lifting power, making it suitable for heavy garage doors. The 1146 also includes a battery backup system, ensuring functionality even during power outages. Its safety features, including infrared sensors, help prevent accidents by detecting obstructions in the door's path.

The Chamberlain 120AD model is particularly appreciated for its easy installation process. This model features a belt drive system, which provides quieter operation compared to chain-driven alternatives. This makes the 120AD an excellent choice for homes with living spaces adjacent to the garage. It also includes built-in Wi-Fi, enabling smart home integration and remote access through the myQ app.

The Chamberlain 1145 model is a compact yet powerful option that maintains high reliability. It offers a strong chain drive system and a variety of safety features, including rolling code technology that enhances security by changing the access code after every use. The 1145 is ideal for families looking for a cost-effective yet dependable solution.

Overall, the Chamberlain 1160JG, 1160, 1146, 120AD, and 1145 garage door openers not only bring convenience through advanced technology but also prioritize safety, making them an excellent investment for any homeowner. Their blend of performance, durability, and smart technology ensures that users benefit from a hassle-free garage door experience.
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