ASSEMBLY STEP 4

Install the Chain/Cable

and Attach the Sprocket Cover

1.Pull the cable around the idler pulley and toward the trolley.

2.Connect the cable loop to the retaining slot on the trolley, as shown:

•From below, push pins of master link bar up through cable loop and trolley slot.

•Push master link cap over pins and past pin notches.

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

3.With the trolley against the pliers, dispense the remainder of the cable/chain along the rail toward the motor unit and around the sprocket. The sprocket teeth must engage the chain.

4.Check to make sure the chain is not twisted, then connect it to the threaded shaft with the remaining master link.

5.Thread the inner nut and lock washer onto the the trolley shaft.

6.Insert the trolley threaded shaft through the hole in the trolley. Be sure the chain is not twisted.

7.Loosely thread the outer nut onto the trolley shaft.

8.Remove the locking pliers.

9.Align the tabs on the sprocket cover with the slots

in the mounting plate. Squeeze cover and insert tabs in slots.

To avoid possible SERIOUSINJURYto fingers from moving garage door opener:

•ALWAYSkeep hand clear of sprocket while operating opener.

•Securelyattach sprocket cover BEFOREoperating.

Dispensing Carton

Leave Chain and Cable

Inside Dispensing

Carton to Prevent Kinking.

Keep Chain and Cable

Taut When Dispensing

Master Link._

Master

Chp-On Spnng _

Ltnk Cap

I

i

Master

Link _

 

Master

 

 

 

 

 

 

Clip-OnSpringCabler'-1

jl Link Cap

'

i

 

 

 

 

 

 

 

Trolley

:

,

Pin

 

 

 

 

 

 

Threadeded

,

I

Noch

 

 

 

 

 

Shaft

i

:

 

 

 

 

 

 

 

Round

i

 

Master

 

 

 

 

 

 

 

Link

Bar

 

 

Idler

 

 

 

 

 

 

 

 

 

Pulley

I

'

Slotted

 

 

 

 

 

 

 

,

i

Hole

 

 

 

 

 

 

 

:

:

 

Cover

 

 

Motor

Unit

 

 

 

 

 

 

 

 

Cable

 

 

........

 

 

_"

 

Sprocket

 

(_

 

Unk Bar

Front

 

'

'

 

 

 

 

 

Tab

SIot

 

:

Back

 

 

 

 

 

Tab

Slot

 

 

 

 

 

 

 

 

Mounting

10

Page 9 Page 11
Page 10
Image 10
Sears 139.53975SRT1, 139.53962SRT1 owner manual Install the Chain/Cable Attach the Sprocket Cover
Page 9 Page 11

139.53975SRT1, 139.53962SRT1 specifications

The Sears 139.53962SRT1 and 139.53975SRT1 are two sophisticated garage door opener models that have gained significant attention for their innovative features and technologies. These devices represent the cutting edge of convenience and security in residential garage systems.

One of the standout features of both models is the integrated MyQ technology. This allows users to control their garage doors remotely using a smartphone app, ensuring seamless access even when they are away from home. Whether you’re on vacation or simply running errands, the ability to monitor and control your garage door from anywhere adds an unmatched level of convenience and peace of mind.

Both the 139.53962SRT1 and 139.53975SRT1 come equipped with a powerful ¾ HP motor. This robust motor provides sufficient lifting power for standard-sized garage doors, ensuring efficient and reliable operation. The powerful motor is designed to handle heavy doors with ease, making it a suitable choice for a variety of residential applications.

Safety is a critical aspect of garage door systems, and these models excel in this area. They feature advanced safety sensors that detect obstructions in the door’s path. This means that if something is in the way as the garage door closes, it will automatically reverse, preventing potential accidents and injuries.

In addition to safety sensors, both models are equipped with rolling code technology. This system enhances security by changing the access code every time the remote is used, preventing unauthorized access and potential break-ins.

Another noteworthy characteristic of these garage door openers is their quiet operation. Thanks to a specially designed belt drive system, both models minimize noise during operation, making them ideal for homes with living spaces situated above the garage.

Installation is made simpler with the inclusion of detailed instructions and user-friendly components, allowing most homeowners to set up the system with minimal hassle.

Overall, the Sears 139.53962SRT1 and 139.53975SRT1 garage door openers combine powerful performance with advanced technology, safety features, and ease of use, making them top choices for anyone looking to upgrade their garage door system.
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