Attach The Rail To The Header Bracket - Chamberlain Security+ 3245M Owner's Manual

Header Wall
Header Bracket
Chain Pulley
Bracket
Garage
Door
INSTALLATION STEP 3

Attach the Rail to the Header Bracket

• Position the opener on the garage fl oor below the
header bracket. Use packing material as a protective
base. NOTE: If the door spring is in the way you'll need
help. Have someone hold the opener securely on a
temporary support to allow the rail to clear the spring.
• Position the rail bracket against the header bracket.
• Align the bracket holes and join with a clevis pin
as shown.
• Insert a ring fastener to secure.
Rail
HARDWARE SHOWN ACTUAL SIZE
Clevis Pin
5/16"x2-3/4"
10
Ring Fastener
Header Bracket
Clevis Pin
5/16"x2-3/4"
Chain
Pulley
Bracket
Rail
Ring Fastener
Temporary
Support