Owner`s manual

10
To avoid possible SERIOUS INJURY to fi ngers from moving
garage door opener:
• ALWAYS keep hand clear of belt pulley while operating
opener.
• Securely attach belt pulley cover BEFORE operating.
ASSEMBLY STEP 4
Install the Belt and Attach the Belt Cap Retainer
1. Pull the belt around the idler pulley and toward the trolley.
The ribbed side must contact the pulley.
2. Hook the trolley connector into the retaining slot on the trolley
as shown.
3. With the trolley against the screwdriver, dispense the remainder
of the belt along the rail length toward the motor unit and
around the sprocket. The sprocket teeth must engage the belt.
4. Check to make sure the belt is not twisted and the FLAT side of
the trolley threaded shaft is facing the rail. Connect the trolley
threaded shaft with the master link, as illustrated:
• Push pins of master link bar through holes in end of belt and
trolley threaded shaft.
• Push master link cap over pins and past pin notches.
• Slide clip-on spring over cap and onto pin notches until both
pins are securely locked in place.
5. Insert the trolley threaded shaft through the hole in the trolley.
Be sure the belt is not twisted, and the FLAT side of the trolley
threaded shaft faces the rail.
6. Hold the belt at the trolley shaft as you thread the spring nut by
hand onto the shaft until fi nger tight against the trolley.
DO NOT use any tools.
7. Remove the screwdriver.
8. Position the belt cap retainer over the motor unit sprocket as
shown and fasten to the mounting plate with 8x3/8" hex screws
provided.
HARDWARE SHOWN ACTUAL SIZE
Hex Screw 8x3/8"
Spring/Trolley Nut
Hex Screws
#8x3/8"
Trolley
Connector
Idler
Pulley
Retaining
Slot
Hole
Master
Link Bar
Pin
Notch
Belt Cap
Retainer
Motor Unit
Sprocket
Mounting Plate
Trolley
Threaded
Shaft
Master Link Cap
Master Link
Clip-On Spring
Spring Nut