ASSEMBLY STEP 2

Fasten the Rail to the Motor Unit

ïInsert 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.

ïRemove the two bolts from the top of the motor unit.

ïPlace the ìUî bracket, flat side down, on the motor unit and align the bracket holes with the bolt holes. Fasten with the previously removed bolts.

ïAlign the rail assembly with the top of the motor unit. Slide the rail end onto the ìUî bracket, all the way to the stops that protrude on the top and sides of the bracket.

HARDWARE SHOWN ACTUAL SIZE

 

Lock Nut

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

1/4"-20

ASSEMBLY STEP 3

Install the Idler Pulley

ïLay 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.

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

ïPlace the idler pulley into the window as shown.

ïInsert 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.

ïRotate the pulley to be sure it spins freely.

ïInsert 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.

CAUTION

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

 

Bolt

Trolley

 

Stop Hole

Bolt

Trolley

Grease Stop Hole

Inside Pulley

Idler Pulley

Lock Washer

Trolley

3/8"

Connector

 

Nut 3/8"

Lock

Idler Nut

Pulley

HARDWARE SHOWN ACTUAL SIZE

Idler Bolt

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

Lock Nut 1/4"-20

Nut 3/8"

Lock Washer 3/8"

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