Chamberlain 211X User Manual download pdf (Page 10)

Clevis Pin

5/16"x2-3/4"

Ring Fastener

Header

Bracket

Chain

Pulley

Bracket

Temporary

Support

Header Wall

Garage

Door

Rail

Clevis Pin

5/16"x2-3/4"

Ring Fastener

Header Bracket

Chain

Pulley

Bracket

Rail

HARDWARE SHOWN ACTUAL SIZE

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 chain pulley bracket against the

header bracket.

• Align the bracket holes and join with a clevis pin

as shown.

• Insert a ring fastener to secure.

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Chamberlain 211X User Manual Page 10