Craftsman 139.53674SRT, 139.53671SRT1 Installation Step, ooo,e.t, Hole Alignment, Alternative

Installation Step 12

Connect Door Arm to Trolley

Follow Instructions which apply to your door type as illustrated below and on page 27.

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 door) about 2" as shown in

Figures	1, 2 and 3.
Figure	1:	Figure 2:
Fasten straight door arm section to outer trolley		• Bring arm sections together. Find two pairs of holes
with the 5/16"x1" clevis pin. Secure the connection		that line up and join sections. Select holes as far
with a ring fastener.		apart as possible to increase door arm rigidity.
Fasten curved door arm to the door bracket in the
same way, using the 5/16 "x I - 1/4" clevis pin.

Inner Trolley

Ring

5/16"x1"

Fastener

/

/

0	Ooor
',	BPac_et	Do_ Am1

5/16"x1-1/4" v Door Arm

Figure 3:

	"_	S116"-18xTi8"
Figure I	ooo,e._t	Figure 2
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 togeg_er.
Find two pairs of holes that line up and join with	• 5/16"
screws, lock washers and nuts.

Hardware Shown Actual Size

Figure 3

Nut 5/16" - 18 Lock Washer 5/16"r

_Pg'l	C_Nn	He_ Screw
sit6"x 1"(Tfot_ey)	5/16"x1-114" (Door B_lcket)	5/16"- 18 x 7/_"

Proceed to Adjustment Step 1, page 28. Trolley will re-engage automatically when the opener is operated.

26