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 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.

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 AND SIDES

OF BRACKET

Lock Nut

Bolt

 

 

Rail

 

 

Pulley

 

 

 

Nut

Washer

 

Idler

Screwdriver

 

 

Bolt

 

 

 

 

 

 

 

Trolley

Bolt

 

 

 

 

 

Stop Hole

 

 

 

Grease

 

 

 

Inside Pulley

 

Lock

 

Idler

 

 

Pulley

 

Washer

Nut 3/8"

 

 

3/8"

 

 

 

Trolley

Idler

Lock

 

Nut

 

Connector

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

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