Attach The Rail To The Header Bracket - Craftsman 139.53903DM Owner's Manual

Wall
Header Bracket
Idler Pulley
INSTALLATION STEP 3
Attach the Rail to the Header Bracket
NOTE: (Optional) With some existing installations, you may re-use
the old header bracket with the two plastic spacers included in the
hardware bag. Place the spacers inside the bracket on eachside of
the rail, as illustrated.
• Position the opener on the garage floor 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 raft to clear the spring.
• Position the rail bracket against the header bracket.
• Align the bracket holes and join with a clevis pin 5/16"x1-1/2"
as shown.
• Insert a ring fastener to secure.
0
Mounting
Hole
Existing
Header Bracket
0
Spacer /
Mou[:
Hole
OPTION WITH
SOME EXISTING
INSTALLATIONS
Door
Opener Carton or
Support
HARDWARESHOWN ACTUALSIZE
0
Clevis Pin 5/16"x1-1/2" Ring Fastener
14