Craftsman 139.53663SRT Owner's Manual page 15

Installation Step 3
Attach the Rail to the Header Bracket
Header Wall
• 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.
Garage
Door
Foam Packaging --
Ring Fastener
Header Bracket 0
i
_J
Clevis Pin _ -.
5/16"x2-3/4 "
Rail
Bracket
Rail
/ 1 Opener Carton or
-- Temporary
Support
Hardware Shown Actual Size
o]
Clevis Pin
5/16" x 2-3/4"
O
Ring Fastener
15