INSTALLATION STEP 12

Connect Door Arm to Trolley

Follow instructions which apply to your door type as illustrated below and on the following page.

SECTIONAL DOORS ONLY

Make sure garage door is fully closed. Pull the emergency release handle to disconnect the outer trolley from the inner trolley. Slide the outer trolley back (away from the pulley) for 8" minimum as shown in Figures 1, 2 and 3.

Figure 1:

-Fasten straight door arm section to outer trolley with the 5/16"xl" clevis pin. Secure the connection with a ring fastener.

-Fasten curved section to the door bracket in the same way, using the 5/16"x1-1/4" clevis pin.

Figure 2:

-Bring arm sections together. Find two pairs of holes that line up and join sections. Select holes as far apart as possible to increase door arm rigidity.

Figure 3, Hole alignment alternative:

-If holes in curved arm are above holes in straight arm, disconnect straight arm. Cut about 6" from the solid end. Reconnect to trolley with cut end down as shown.

-Bring arm sections together.

-Find two pairs of holes that line up and join with screws, lock washers and nuts.

Pull the emergency release handle toward the opener at a 45° angle so that the trolley release arm is horizontal. Proceed to Adjustment Step 1, page 28. Trolley will re-engage automatically when opener is operated.

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Page 26
Image 26
Sears 139.53975SRT1, 139.53962SRT1 owner manual Connect Door Arm to Trolley, Sectional Doors only, Min, Fastener

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.

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