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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.
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, fl at side down onto the bolt mounted on
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
Lock Nut 1/4"-20
Washer 5/8" (2)
Bolt 1/4"-20x2-1/2" (1)
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.
Idler Bolt
To avoid SERIOUS damage to garage door opener, use ONLY
those bolts/fasteners mounted in the top of the opener.
Bolt
Washer
Spacer
Cover
Protection
Bolt Hole
Spacer
Chain and
Cable
Idler
Bolt
Lock
Washer
3/8"
HARDWARE SHOWN ACTUAL SIZE
Bolt 1/4"-20x1-3/4"
9
Hex Screws 8-32x7/16"
Bolts
"U" Bracket
SLIDE RAIL TO STOPS
ON TOP AND SIDES OF
Lock Nut
BRACKET
Bolt
Pulley
Nut
Washer
Screwdriver
Trolley
Trolley
Stop Hole
Grease
Inside Pulley
Idler Pulley
Nut 3/8"
Cable Link
Lock Nut 1/4"-20
Nut 3/8"
Chain
Spreader
Motor Unit
Sprocket
Rail
Bolt
Lock
Nut
Idler
Pulley
Lock Washer 3/8"
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