ASSEMBLY STEP 2
Fasten the Rail to the Motor Unit
•Insert a
•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
CAUTION
To avoid SERIOUS damage to garage door opener, use ONLY those bolts/fasteners mounted in the top of the opener.
Hex Screws
Chain
Spreader
Bolts
Motor Unit
Sprocket
"U" Bracket
Bolt
Cover
Protection
Bolt Hole
| Lock Nut |
Bolt |
ASSEMBLY STEP 3
Install the Idler Pulley
• Lay the chain/cable beside the rail, as shown. |
Grasp the end of the cable and pass |
Lock Nut
Chain and Cable
SLIDE RAIL TO STOPS ON TOP AND SIDES OF BRACKET
Bolt
Pulley 
Rail
Nut
Washer
| 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 |
| 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 |
| in the front of the rail as shown. Tighten securely |
| with a |
Idler | Screwdriver Trolley |
Bolt |
|
Bolt
Trolley
Stop Hole 
| Grease |
| Inside Pulley |
Lock | Idler |
Washer | Pulley |
3/8" | Nut 3/8" |
| |
| Cable Link |
Lock
Idler Nut
Pulley
HARDWARE SHOWN ACTUAL SIZE
Idler Bolt | Bolt | Lock Nut | Nut 3/8" | Lock Washer 3/8" |
9