Craftsman 139.53985DM Owner's Manual page 14

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 raft 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 Wall
Header Bracket
-- Idler Pulley
Header
Mounting
Hole
__ Garage
Door
Temporary
Support
HARDWARE SHOWN ACTUAL SmZE
oD©
ClevisPin5/16"x1-1/2" RingFastener
14