Sears 139.53971SRT, 139.53960SRT, 139.53968SRT Connect Door Arm to Trolley, Sectional Doors only

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"x1" 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.

HARDWARE SHOWN ACTUAL SIZE

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Nut 5/16"-18 Lock Washer 8,16" Ring Fastener

o1-

Clevis Pin	Clevis Pin	Hex Screw
5,16"x1" (Trolley)	5/16"x1-1,4" (Door Bracket)	5/16"-18x7/8"

Pulley
Ii(	8" MIN.	._::
Stop	Bolt	Inner	"	Oute
	Ring j	Trolley	_	Clevis Pin
	Fastener			5/16"x1"
			I
			_	Emergency
0				Release
	Door		,J_-	H_ndle

:Bracket

Door Arm

-- Straight

Clevis PinCurved Door Arm 5/16"x1-1/4

Figure 1

' y 8" MIN. )'

Trolley

Stop Bolt

Lock o

Washers o

Nuts 5/16" _

Figure 2

Pulley

	8" MIN. -.	):
	Stop Bolt	/ /
	Lock
	Washers
Nuts	5,16"

Cut this end

Figure 3

26