ASSEMBLY STEP 2

Fasten the Rail to the Motor Unit

•Insert a 1/4"-20x1-3/4" bolt into the cover protection bolt hole on the back end of the rail as shown. Tighten securely with a 1/4"-20 lock nut. DO NOT overtighten.

•Remove the two bolts from the top of the motor unit.

•Place the “U” bracket, flat side down onto the motor unit and align the bracket hole with the bolt holes. Fasten with the previously removed bolts.

•Align the rail assembly with the top of the motor unit. Slide the rail end onto the “U” bracket, all the way to the stops that protrude on the top and sides of the bracket.

•Attach spreader to the motor unit with two screws.

HARDWARE SHOWN ACTUAL SIZE

Lock Nut 1/4"-20

Bolt 1/4"-20x1-3/4"

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

Hex Screws

 

8-32x7/16"

 

Bolts

Chain Spreader

 

 

Motor Unit

“U” Bracket

Sprocket

Bolt

Cover

Protection

Bolt Hole

SLIDE RAIL TO STOPS

Lock Nut ON TOP AND SIDES

OF BRACKET

ASSEMBLY STEP 3

Install the Idler Pulley

•Lay the chain/cable beside the rail, as shown. Grasp the end of the cable and pass approximately 12"

(30 cm) of cable through the window. Allow it to hang until Assembly Step 5.

•Remove the tape from the idler pulley. The inside center should be pre-greased. If dry, regrease to ensure proper operation.

•Place the idler pulley into the window as shown.

•Insert the idler bolt from the top through the rail and pulley. Tighten with a 3/8" lock washer and nut underneath the rail until the lock washer is compressed.

•Rotate the pulley to be sure it spins freely.

•Insert a 1/4"-20x1-3/4" bolt into the trolley stop hole in the front of the rail as shown. Tighten securely with a 1/4"-20 lock nut.

 

Chain and

Bolt

 

 

Cable

 

 

Pulley

Rail

 

 

 

 

Washer

Nut

 

 

 

 

Screwdriver

Trolley

 

Idler

 

 

 

 

 

Bolt

 

 

 

 

 

 

Bolt

 

 

Grease

 

 

Inside Pulley

 

 

 

Trolley

Lock

 

Idler

Stop Hole

Washer

Nut 3/8"

Pulley

 

3/8"

 

 

Cable Link

Idler Lock

Pulley Nut

HARDWARE SHOWN ACTUAL SIZE

Bolt 1/4"-20x1-3/4"

Lock Washer 3/8"

Lock Nut 1/4"-20

Nut 3/8"

Idler Bolt

9