ASSEMBLY STEP 4

Install the Belt

1.Pull the belt around the idler pulley and toward the trolley. The ribbed side must contact the pufley.

2.Hookthe trolley connector into the retaining slot on the trolley as shown.

3.With the trolley against the screwdriver, dispensethe remainder of the belt along the rail length toward the motor

unit and around the sprocket. The sprocket teeth must engage the belt.

4.Checkto make sure the belt is not twisted. Connectthe trolley threaded shaft with the master link, as illustrated:

Push pins of master link bar through holes in end of belt and trolley threaded shaft.

Push master link cap over pins and past pin notches.

Slide clip-on spring over cap and onto pin notches until both pins aresecurely locked in place.

To avoid possible SERIOUSINJURYto fingers from moving garagedoor opener:

ALWAYS keep hand clear of sprocket while operating opener.

Securely attach sprocket cover BEFOREoperating.

5.Insert the trolley threaded shaft through the hole in the trolley. Be sure the belt is not twisted.

Trolley Connector

BeltSprocket

Y

Threaded

Shaft

Slot

Trolley

Connector

Idler

Pulley

HARDWARESHOWN ACTUALSIZE

Master Link

Clip-On Spring

Master

Link Cap

 

Notch

Trolley

Master

Threaded

Link Bar

Shaft

 

i i

Master Link

Trolley Threaded Shaft

10

Page 10
Image 10
Craftsman 139.3043 owner manual Install the Belt

139.3043 specifications

The Craftsman 139.3043 garage door opener stands out as a robust and reliable solution for homeowners looking to enhance the functionality and security of their garage spaces. This model is designed with the latest technologies and features, making it one of the preferred choices in the market.

One of the key features of the Craftsman 139.3043 is its powerful motor, which provides a smooth and quiet operation. With a lifting capacity that accommodates most standard residential garage doors, this opener ensures that users can operate their doors seamlessly without unnecessary noise. The blend of power and quiet functionality enhances the overall user experience, making it ideal for homes with bedrooms or living areas adjacent to the garage.

The opener also boasts a durable rail system, designed for easy installation and longevity. The straightforward design simplifies the installation process, enabling a typical DIY enthusiast to set it up without the need for professional assistance. Additionally, the sturdy construction of the rail system ensures that it can withstand the rigors of daily use.

Safety and security are paramount with the Craftsman 139.3043. It incorporates advanced safety features, such as the automatic reverse function, which prevents accidents by reversing the door's motion when an obstacle is detected. This feature adds peace of mind for families with children and pets. Furthermore, the built-in security technology includes a rolling code system that changes the access code each time the remote is used, thus protecting against potential unauthorized access.

The Craftsman 139.3043 is equipped with remote control capabilities, allowing users to open and close their garage doors from a distance. The remote is designed to be user-friendly, with buttons that are easy to operate. Additionally, many models include a smartphone app integration, empowering users to control their garage door via their mobile devices, providing convenience and modern accessibility.

Another notable characteristic is the vibrant LED lighting that illuminates the garage space when the door is in use. This not only enhances visibility but also contributes to the overall safety of the area, preventing accidents in dimly lit environments.

In summary, the Craftsman 139.3043 garage door opener combines power, ease of use, advanced safety features, and modern technology. Its reliable performance and user-friendly elements make it a top choice for homeowners seeking an effective solution to their garage door needs.