Craftsman 139.53664SRT2 Install the Trolley on the T-rail, Fasten the T-rail to the Opener

Assembly Step 2

Install the Trolley on the T-rail

•As a temporary stop, insert a screwdriver into the hole in the front end of the T-rail.

•Slide the trolley assembly along the rail to the screwdriver stop.

If trolley hits against any nuts on the T-rail, the bolts and nuts were attached from the wrong side and must be repositioned. Review Step 1.

Hex Screw 5/16"-18x7/8"

Temporary Stop

Screwdriver

Assembly Step 3	I
Fasten the T-rail to the Opener	I

Place the opener on packing material to protect the cover. For convenience, put a support under the belt pulley bracket.

Remove the (2) 5/16"-18xl/2" washered screws mounted in the top of the opener.

Trolley

Stop Hole

\

.ock Washer

, _ 5/16"

/Nut

5/16"-18

•Insert a 5/16"-18x7/8" hex screw into the trolley

stop hole in the T-rail as shown. Tighten securely with a 5/16" lock washer and nut. This screw limits

trolley travel in the DOWN direction.

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To fasten rail, use only those screws mounted in the top of the opener. Any other screws will cause serious damage to the opener.

Washered Screw

Align the holes in the back section of the T-rail with the holes in the opener.

•Fasten the rail with the (2) washered screws previously removed. Tighten securely.

Remember to use only these screwsl Any other screws will cause serious damage to the opener.

•Insert a 5/16"-18x7/8" hex screw into the cover protection bolt hole in the T-rail as shown. Tighten securely with a 5/16" lock washer and nut.

NOTE: This screw prevents trolley over-travel. Keep a 2" minimum between the trolley and this screw when adjusting travel limits (see page 28).

Hardware Shown Actual Size

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Hex Screw NUt Lock Washer

5/16"-18xl/2"

Hex Screw 5/16"-18x7/8 =

Cover

Protection

T-rail

(Sack Section)

5/16"

Nut

5/16"-18

Use Or#,

5/16"- 18x7/8" 5/16" 5/16"