Craftsman 139.53990DS Manual Del Propietário página 14

iNSTALLATiON STEP 3
Attach the Rail to the Header
Bracket
1. 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 aflow the
raft to clear the spring.
2. Position the rail bracket against the header bracket.
3. Align the bracket holes and join with a clevis pin
5/16"xl -1/2" as shown.
4. Insert a ring fastener to secure.
Header Wall
Header Bracket
-- Idler Pulley
Header
Mounting
Hole
__ Garage
Door
Temporary
Support
HARDWARE SHOWN ACTUAL SIZE
oi ©
Clevis Pin5/16"x1-1/2" Ring Fastener
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