Dürkopp Adler Class 271 Instruction Manual page 112

Contents
Preface and General Safety Information
Part 1: Operating Instructions Class 271-274 Direct drive
1. Product Description
2. Proper Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3. Subclasses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4. Optional Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5. Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6. Operation
6.1 Threading the Needle Thread . . . . . . . . . . . . . . . . . . . . . . .
6.2 Setting the Needle Thread Tension . . . . . . . . . . . . . . . . . . . .
6.3 Releasing the Needle Thread Tension . . . . . . . . . . . . . . . . . .
6.4 Winding the Underthread
6.5 Inserting the Underthread Bobbin . . . . . . . . . . . . . . . . . . . . .
6.6 Setting the Underthread Tension . . . . . . . . . . . . . . . . . . . . .
6.7 Changing Needles . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.8 Setting the Thread Regulator . . . . . . . . . . . . . . . . . . . . . . .
6.9 Setting the Sewing Foot Pressure . . . . . . . . . . . . . . . . . . . . .
6.10 Setting the Stitch Length . . . . . . . . . . . . . . . . . . . . . . . . . .
6.11 Sewing Foot Lift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.12 Arresting the Sewing Foot in the High Position . . . . . . . . . . . . . .
6.13 Roller Top Feed (Classes 273 and 274)
6.13.1 The Electropneumatic Feed Roller Switching
6.13.2 "Lift/Lower Feed Roller" Function Module . . . . . . . . . . . . . . . .
6.13.3 Parameter Table for the "Lift/Lower Feed Roller" Function Module
6.14 Edge Trimmer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.15 Setting Dial on the Head Cover (only Class 274 or Class 273 with
optional equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.16 Keypad on the Sewing Machine Arm . . . . . . . . . . . . . . . . . . .
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