Steel-Line SD1200 Installation And Operating Instructions Manual page 7

STEP 9.
Fasten door bracket (4) securely to frame or structural support. Bracket should be mounted along the
centerline at the top of the panel.
PARTS REQUIRED
(4)
STEP 10.
With door fully closed insert the curved door arm (6) into the door bracket and secure with clevis pin (11)
and R-clip (11). With the trolley disengaged bring the straight arm and curved door arm together and
secure using the two bolts and nuts provided.
PARTS REQUIRED
(6)
(11)
(11)
STEP 11.
Manually check that the door opens and closes completely and correctly.
Unit is now ready for programming (see page 8).
Two Stage Trolley- Manual Release Mechanism (if applicable)
Page 6
Installation & Operating Instructions
SD1200 - Sectional Garage Door Opener
V2.09/19