Attach the t-rail to the header bracket, Installation step 3 – Chamberlain 2580 1/2 HP User Manual
Page 11
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Clevis Pin
5/16"x2-3/4"
Ring Fastener
11
Header
Bracket
Belt Pulley
Bracket
Temporary
Support
Header Wall
Garage
Door
Clevis Pin
5/16"x2-3/4"
Ring
Fastener
Header
Bracket
Belt Pulley
Bracket
T-Rail
HARDWARE SHOWN ACTUAL SIZE
INSTALLATION STEP 3
Attach the T-Rail to the Header
Bracket
• 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 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.
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