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, on the motor unit and align the bracket holes 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.

HARDWARE SHOWN ACTUAL SIZE

Lock Nut 1/4"-20

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

ASSEMBLY STEP 3

Install the Idler Pulley

• Lay the belt beside the rail, as shown. Grasp the

end with the hooked trolley connector and pass

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

Bolts

Motor Unit

Sprocket

 

“U” Bracket

Bolt

Cover

Protection

Bolt Hole

SLIDE RAIL TO

STOPS ON TOP

Lock Nut AND SIDES

OF BRACKET

Bolt

Rail

Pulley

approximately 12" (30 cm) of belt through the window.

Keep the ribbed side toward the rail, and 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.

Idler

Bolt

Lock Washer 3/8"

Nut

Screwdriver

Nut 3/8"

Trolley

Connector

Washer

Bolt

Trolley

Stop Hole

Grease

Inside Pulley

Idler

Pulley

Lock

Idler Nut

Pulley

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