DURKOPP ADLER Class 271 - Part 1: Operating Instructions Class 271-274 Direct drive

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Contents Page:

Preface and General Safety Information

Part 1: Operating Instructions Class 271-274 Direct drive

1. Product Description

. . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2. Proper Use

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3. Subclasses

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

4. Optional Equipment

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

5. Technical Data

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

6. Operation

6.1 Threading the Needle Thread . . . . . . . . . . . . . . . . . . . . . . . 15

6.2 Setting the Needle Thread Tension . . . . . . . . . . . . . . . . . . . . 15

6.3 Releasing the Needle Thread Tension . . . . . . . . . . . . . . . . . . 15

6.4 Winding the Underthread . . . . . . . . . . . . . . . . . . . . . . . . . 16

6.5 Inserting the Underthread Bobbin . . . . . . . . . . . . . . . . . . . . . 17

6.6 Setting the Underthread Tension . . . . . . . . . . . . . . . . . . . . . 18

6.7 Changing Needles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

6.8 Setting the Thread Regulator . . . . . . . . . . . . . . . . . . . . . . . 20

6.9 Setting the Sewing Foot Pressure . . . . . . . . . . . . . . . . . . . . . 21

6.10 Setting the Stitch Length . . . . . . . . . . . . . . . . . . . . . . . . . . 22

6.11 Sewing Foot Lift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

6.12 Arresting the Sewing Foot in the High Position . . . . . . . . . . . . . . 23

6.13 Roller Top Feed (Classes 273 and 274) . . . . . . . . . . . . . . . . . 24

6.13.1 The Electropneumatic Feed Roller Switching . . . . . . . . . . . . . . 24

6.13.2 "Lift/Lower Feed Roller" Function Module . . . . . . . . . . . . . . . . 24

6.13.3 Parameter Table for the "Lift/Lower Feed Roller" Function Module . . 25

6.14 Edge Trimmer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

6.15 Setting Dial on the Head Cover (only Class 274 or Class 273 with

optional equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

6.16 Keypad on the Sewing Machine Arm . . . . . . . . . . . . . . . . . . . 29