Craftsman 139.53990DS Manual Del Propietário página 14

Header W all
Header B racket
Idler Pulley
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
5/16"x1-1/2" as shown,
• Insert a ring fastener to secure.
Header
\
Mounting
Hole
0
i
__ Garage
Door
Opener Carton or
__ Temporary
Support
HARDWARE SHOWN ACTUAL SIZE
o30
Clevis Pin 5/16"x1-1/2" Ring Fastener
14