9
To avoid SERIOUS damage to garage door opener, use ONLY
those bolts/fasteners mounted in the top of the opener.
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.
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
Nut 3/8"
Idler Bolt
Lock Nut 1/4"-20
Bolt 1/4"-20x1-3/4"
Lock Washer 3/8"
HARDWARE SHOWN ACTUAL SIZE
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 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.
•
Hex Screws
8-32x7/16"
Chain
Spreader
Motor Unit
Sprocket
SLIDE RAIL TO STOPS
ON TOP AND SIDES
OF BRACKET
Bolts
"U" Bracket
Cover
Protection
Bolt Hole
Spacer
Spacer
Bolt
1/4"-20x2-1/2
Washer 5/8"
Washer 5/8"
Lock Nut
1/4"-20
Bolt 1/4"-20x2-1/2
Spacer
Washer 5/8"
Lock Nut 1/4"-20
HARDWARE SHOWN ACTUAL SIZE