Header
Bracket
Chain
Pulley
Bracket
Temporary
Support
Header Wall
Garage
Door
The Chamberlain Group, Inc.
Attach Tee Rail to Header Bracket
2/4/92 - 4/9/92 - 5/3/92 -5/5/92
T-rail
Clevis Pin
5/16"x2-3/4 "
Ring Fastener
Header Bracket
Chain
Pulley
Bracket
T-rail
INCREASE TRAVEL
DOWN
UP
• 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.
11
Installation Step 3
Attach the T-rail to the Header Bracket
Clevis Pin
5/16"x2-3/4"
Ring Fastener
Axe de chape de 5/16 de po x2-3/4 po
Anneau d'arrêt
Hardware Shown Actual Size