Attach The Rail To The Header Bracket - LiftMaster MERIK SECURITY+ 790LMK Manual Del Propietário

Header Wall
Header
Bracket
Chain
Sprocket
Bracket
Garage
Door
Clevis Pin
5/16"x2-3/4"
INSTALLATION STEP 3

Attach the Rail to the Header Bracket

• Position the opener on the garage fl oor 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.
T-Rail
Clevis Pin
5/16"x2-3/4"
HARDWARE SHOWN ACTUAL SIZE
19
Ring Fastener
Header Bracket
Chain
Sprocket
Bracket
T-rail
Temporary
Support
Ring Fastener