Attach T-Rail To Header Bracket; Bracket; Clevis Pin 5/16"X1 - Chamberlain 985 1/3HP Owner's Manual

Installation Step 3
Attach the T-rail to the Header Bracket
Header Wall
Header

Bracket

Chain
Pulley
Bracket
Garage
Door
Hardware Shown Actual Size
Clevis Pin
5/16"x2-3/4"
• 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 chain 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 "
Ring Fastener
11
Ring Fastener
Chain
Pulley
Bracket
T-rail
Temporary
Support