6
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/fasteners will cause serious damage to
door opener.
• Align Rail over sprocket. Cut tape from Rail and
chain.
USE ONLY THIS
TYPE AND SIZE
BOLT
Washered Bolt
5/16"-18x1/2"
Rail
Hole
To avoid SERIOUS damage to opener, ONLY use
bolts/fasteners mounted in top of motor unit.
WARNING
CAUTION
WARNING
WARNING
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.
Proceed to Assembly Step 3.
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.
WARNING
CAUTION
WARNING
WARNING
Washered Bolt
5/16"-18x1/2"
Sprocket
Sprocket Cover
Mounting
Plate
Front Tab Slot
Back Tab Slot
USE ONLY THIS
TYPE AND SIZE
BOLT