Chamberlain 2595LM 3/4 HP Attach the Rail to the Motor Unit, Attach the Chain Spreader, Attach the Chassis Support Bracket, NOTE:, Figure, Figure, Figure, Figure, ASSEMBLY STEP

ASSEMBLY STEP 1

Attach the Rail to the Motor Unit

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

ïRemove the bolt and lock nut from the top of the motor unit.

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

ïFasten 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

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

ïGuide 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.

CAUTION

To avoid SERIOUS damage to opener, ONLY use bolts/fasteners, mounted in top of motor unit.

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

	Hex Screws
	8-32x1"
	Washers
Figure 2	Chain
	Spreader
	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

ï	Position the rail support bracket on the unit.
ï	Attach the bracket to the rail with 1/4"-20x5/8" hex
	bolts and lock washers. Do not overtighten.
ï	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

WARNING

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

•ALWAYS keep hand clear of sprocket while operating opener.

•Securely attach chain spreader BEFORE operating.

Figure 4	Hex Bolts 1/4"-20x5/8"
	w/Lock Washers

#8-32x3/8" screw through the back flange and the

hole in rail support (Figure 4).

Washered Bolt 5/16"-18x1/2"

Screw #8-32x3/8"

Proceed to Assembly Step 4.

Chassis

Washered Bolt 5/16"-18x1/2"

Support

Bracket Opener

Back Flange

Opener

Side Flange

6