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, on the motor unit
and align the bracket holes 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.
ASSEMBLY STEP 3
Install the Idler Pulley
•
Lay 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.
•
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
"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
Motor Unit
Sprocket
Idler
Pulley
Trolley
Stop Hole
Bolt
Trolley
Connector
Pulley
Rail
Bolt
Nut Washer
Lock Washer
3/8"
Nut 3/8"
Idler
Bolt
Screwdriver
Idler Pulley
Grease
Inside Pulley
Lock
Nut
Bolt 1/4"-20x2-1/2
Spacer
Washer 5/8"
Lock Nut 1/4"-20
HARDWARE SHOWN ACTUAL SIZE
Nut 3/8"
Lock Washer 3/8"
Idler Bolt
Lock Nut 1/4"-20
Bolt 1/4"-20x1-3/4"
HARDWARE SHOWN ACTUAL SIZE
