Chamberlain 3595CS ASSEMBLY STEP, ASSEMBLY STEP, ASSEMBLY STEP, Attach the Chain Spreader, Attach the Rail to the Motor Unit, Attach the Chassis Support Bracket, NOTE:

ASSEMBLY STEP 1Attach the Rail to the Motor Unit

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

•Remove the bolt and lock nut from the top of the motor unit.

•Place rail onto the bolt mounted on the motor unit and align the back hole with the hole in the top of the unit.

•Fasten rail with the washered bolt and lock nut previously removed. Tighten securely. (Figure 1)

Remember to use only these bolts/fasteners! Any other bolts/fasteners will cause serious damage to the opener.

ASSEMBLY STEP 2

Attach the Chain Spreader

•Attach chain spreader to the motor unit with two screws (Figure 2).

•Guide the chain around the selected groove in the chain spreader, to engage either the 8-tooth sprocket or the 6-tooth sprocket (Figure 3).

NOTE: The 6-tooth sprocket is for use with Carriage House Doors and the 8-tooth sprocket is for use with Regular Doors.

To avoid SERIOUS damage to garage door opener, use ONLY those bolts/fasteners mounted in the top of the opener.

Figure 1	Washered Bolt
	5/16"-18x1/2"
Lock Nut

Hex Screws 8-32x1"

Washers

Chain

Spreader

Figure 2	Motor Unit
	Sprocket

Figure 3

Chain Spreader	6-Tooth	Chain Spreader
	Sprocket	8-Tooth
		Sprocket
	Motor Unit	Motor Unit
	Mounting Plate	Mounting Plate

ASSEMBLY STEP 3

Attach the Chassis Support Bracket

•Position the rail support bracket on the unit.

•Attach the bracket to the rail with 1/4"-20x5/8" hex bolts and lock washers.

•Attach the bracket to the opener by inserting a 5/16"-18x1/2" washered screw through a hole in each side flange and a matching hole in the bracket. Complete the connection by inserting the #8-32x3/8" screw through the back flange and the hole in rail support (Figure 4).

Proceed to Assembly Step 4.

To avoid possible SERIOUS INJURY to fingers from moving garage door opener:

•ALWAYS keep hand clear of sprocket while operating opener.

•Securely attach sprocket cover BEFORE operating.

Figure 4	Hex Bolts 1/4"-20x5/8"
	w/Lock Washers
		Screw
	Washered Bolt	#8-32x3/8"
	5/16"-18x1/2"
		Washered Bolt
	Chassis	5/16"-18x1/2"
	Support	Opener
	Bracket
		Back Flange
		Opener
		Side Flange

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