Sigma ML750 instruction manual Before You Begin, Door Types, Tools Required

Before You Begin

1. Look at the wall or ceiling above the garage door. The header bracket must be securely fastened to structural supports.

2. Do you have a finished ceiling in your garage? If so, a support bracket and additional fastening hardware (not supplied) may be required.

3. Depending on your door's construction, you might need a special door arm. See your dealer.

4. Do you have an access door in addition to the garage door? If not, Model 1702AML Outside Quick Release Accessory is required.

1 Door Types

A.One-Piece Door with Horizontal Track Only.

B.One-Piece Door with Horizontal and Vertical Track – Special door arm and the Protector System™ (30(8)) required. See your dealer.

C.Sectional Door with Curved Track – See 20B – connect door arm. The Protector System™ (30(8)) is required for doors that are over 2,5m in height

D.Canopy door – Special door arm and the Protector System™ (30(8)) required. See your dealer.

2

2Tools Required

1

2

10 mm, 8 mm,

4,5 mm, 4 mm

11mm, 13mm

3