Chamberlain PD600 Assemble the T-Railand, Attach the Cable Pulley Bracket, NOTE:, NOTE:, ASSEMBLY STEP

ASSEMBLY STEP 1

Assemble the T-Rail and

Attach the Cable Pulley Bracket

To avoid installation difficulties, do not run the garage door opener until instructed to do so.

1.Align the four T-rail sections on a flat surface exactly as shown. Center sections are interchangeable. Front and back sections are also interchangeable for ease of assembly.

2.Insert the carriage bolts so the square bolt necks seat in the square holes

in the T-rail sections and pass through the round holes in the rail

braces. Make sure bolt necks are seated in the square holes and rails are aligned before you tighten lock nuts. Improper assembly can cause

jerky trolley operation, noise and/or nuisance door reversals.

3.Assemble lock nuts, ensure alignment and tighten.

NOTE: If T-rail is not assembled exactly as shown, trolley will not travel smoothly along length of rail or it will hit against nuts.

4.Position the cable pulley bracket on the front end of the T-rail as shown. Fasten securely with the hardware shown.

NOTE: When tightening the screws, be sure to keep bracket parallel to the rail. Otherwise, the rail

may bow when the opener is operated.

	Cable pulley bracket	T-rail
	attaches to FRONT	T-rail
	attaches to FRONT	(End Section)
	END of T-rail	(End Section)
	END of T-rail
		T-RAIL FRONT
		(TO DOOR)

HARDWARE

SHOWN ACTUAL SIZE

Carriage Bolts

Lock Nut 1/4"-20x1/2" 1/4"-20

Hex Screw	Nut	Lock Washer
5/16"-18x7/8"	5/16"-18	5/16"

T-RAIL BACK

(TO MOTOR UNIT)

Square Carriage

Bolt Hole

T-rail

(End Section)

1/4" Lock Nut

Carriage Bolt 1/4"-20x1/2"

T-rail

(Center Section)Hex Screws

5/16"-18x7/8"

Cable Pulley

Bracket

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