Attach The Rail To The Header Bracket - Chamberlain 1000SDR 1/3 HP Owner's Manual

Installation Step 3

Attach the Rail to the Header Bracket

• Position the opener on the garage floor below the
header bracket. Use packing material as a protective
base.
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.
Header Wall
Header Bracket
Rail Bracket
Rail
Garage
Door
Foam Packaging
5/16"x2-3/4 "
Hardware Shown Actual Size
Clevis Pin
5/16" x 2-3/4"
11
Ring Fastener
Header Bracket
Clevis Pin
Rail
Bracket
Rail
Opener Carton or
Temporary
Support
Ring Fastener