LiftMaster 1355 1355 Manual - Page 15
Installation Step 3
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Header Wall Header Bracket Chain Pulley Bracket 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. Garage Door Ring Fastener Header Bracket Clevis Pin 5/16"x2-3/4" Chain Pulley Bracket Rail Temporary Support HARDWARE SHOWN ACTUAL SIZE Clevis Pin 5/16"x2-3/4" 15 Ring Fastener
15
Cle
v
is Pin
5/16"x2-3/4"
Ring
Fastener
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.
Header Bracket
Chain Pulley Bracket
Temporary
Support
Header Wall
Garage
Door
Clevis Pin
5/16"x2-3/4"
Ring Fastener
Header Bracket
Chain
Pulley
Bracket
Rail
HARDWARE SHOWN ACTUAL SIZE