9
To avoid SERIOUS damage to garage door opener, use ONLY
those bolts/fasteners mounted in the top of the opener.
ASSEMBLY STEP 2
Fasten the Rail to the Motor Unit
• Insert a 1/4"-20x2-1/2 bolt, washer and spacer into the cover
protection bolt hole on the back end of the rail as shown.
Install lower spacer and washer then tighten securely with a
1/4"-20 lock nut.
DO NOT overtighten.
• Remove the bolt and lock nut 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.
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.
Bolt
Hex Screws
8-32x7/16"
Chain
Spreader
Motor Unit
Sprocket
"U" Bracket
Lock Nut
Lock Nut
SLIDE RAIL TO STOPS
ON TOP AND SIDES
OF BRACKET
Cover
Protection
Bolt Hole
Bolt
Spacer
Spacer
Washer
Washer
Lock
Washer
3/8"
Nut 3/8"
Cable Link
Idler
Bolt
Chain and
Cable
Pulley
Rail
Bolt
Nut
Washer
Trolley
Idler
Pulley
Idler
Pulley
Grease
Inside Pulley
Screwdriver
Trolley
Stop Hole
Bolt
Lock
Nut
Bolt 1/4"-20x2-1/2
Spacer
Washer 5/8"
Lock Nut 1/4"-20
HARDWARE SHOWN ACTUAL SIZE
Nut 3/8"
Idler Bolt
Lock Nut 1/4"-20
Bolt 1/4"-20x1-3/4"
Lock Washer 3/8"
HARDWARE SHOWN ACTUAL SIZE