Attach The T-Rail To Header Bracket - Chamberlain 3500 - 1/2HP Series Owner's Manual

Installation Step 3
Attach the T-rail to the Header Bracket
Header Wall
Garage
Door
Header
Bracket
Cable
Pulley
Bracket
Hardware Shown Actual Size
Clevis Pin
5/16" x 2-3/4"
• 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 T-rail to clear the
spring.
• Position the cable pulley bracket against the header
bracket.
• Align the bracket holes and join with a clevis pin as
shown.
• Insert a ring fastener to secure.
T-rail Header Bracket
Clevis Pin
5/16"x2-3/4"
15
Ring Fastener
Cable
Pulley
Bracket
T-rail
Temporary
Support
Ring Fastener