Craftsman 139.53645SRT3 Garage Door Opener User Manual


 
Installation Step 3
Attach the T-rail to the Header Bracket
Heade_
Brackel
Cable
Bracket
Position the opener on the garage floor below the
header bracket. Use packing material as a
protective base.
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 T-rail to clear the
spring.
Position the cable pulley bracket against the header
bracket.
Align the bracket holes and join with a clevis pin as
shown.
Insert a ring fastener to secure.
Ring Fastener
Header Bracket
Clevis Pin
5/16"x2-3/4 ' Cable
Pulley
Bracket
Door
\
Temporary
-- Support
Hardware Shown Actual Size
o]
Clevis Pin
5/16" x 2 3/4'
©
Ring Fastener
15