6
To avoid SERIOUS damage to opener, ONLY use bolts
mounted in top of motor unit.
Chain
Spreader
Motor Unit
Sprocket
Styrofoam
Rail Hole
Rail Hole
Washered Bolt
5/16"-18x1/2"
USE ONLY THIS
TYPE AND SIZE
BOLT
Chain
Spreader
Motor Unit
Sprocket
Chain Sprocket
#8x3/8" Hex Screws
Sprocket Cover
ASSEMBLY STEP 1
Attach the Rail to the Motor Unit
To avoid installation difficulties, do not run the garage door
opener until instructed to do so.
• Remove the two washered bolts mounted in top of motor unit.
• Position rail at a 45° angle to opener so one hole in rail and
motor unit line up.
• Thread one of the washered bolts part way in.
Use only these bolts! Use of any other bolts will cause serious
damage to door opener.
• Align rail and styrofoam over sprocket. Cut tape from rail,
chain and styrofoam.
•
REMOVE STYROFOAM.
ASSEMBLY STEP 2
Attach the Chain to the Sprocket and Install the
Sprocket Cover
• Position chain over the sprocket. If necessary, loosen the outer
nut on the trolley to obtain more chain slack.
• Insert the second washered bolt.
CAUTION: Use only the bolt
previously removed from motor unit!
• Tighten both bolts securely through the rail into the motor unit
as shown.
• Install the sprocket cover:
Insert the back tab in the slot.
Squeeze the cover slightly and insert the front tab in the slot on
the mounting plate. Attach with #8x3/8" hex screws provided.
To avoid possible SERIOUS INJURY to fingers from moving
garage door opener:
• ALWAYS keep hand clear of sprocket while operating
opener.
• Securely attach sprocket cover BEFORE operating.
Hex Screw
#8x3/8"
HARDWARE SHOWN
ACTUAL SIZE
