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 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

Chain Spreader

6-Tooth

8-Tooth

 

Sprocket

Sprocket

Motor Unit

Motor UnitMounting 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.

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 sprocket cover 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