10
Clevis Pin
5/16"x2-3/4"
Ring Fastener
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
Rail
HARDWARE SHOWN ACTUAL SIZE
INSTALLATION STEP 3
Attach the 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.
Summary of Contents for Security+ 3850AD
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