Operation Manual

EN
Contents Page
Introduction and safety instructions
Part 1: Operating Instructions Class 888 - Original Instructions
(Edition 10/2014)
1 Product description ........................................... 5
2 Designated use .............................................. 5
3 Subclasses and sewing equipment
3.1 Subclasses.................................................. 6
3.2 Sewing equipment standard ........................................ 8
3.3 Sewing equipment special ......................................... 11
4 Optional equipment ............................................ 13
5 Technical data ............................................... 15
6 Operation
6.1 Threading the needle thread ....................................... 17
6.2 Winding the hook thread .......................................... 18
6.3 Bobbin insertion and threading the hook thread ........................... 18
6.4 Adjustingthethreadtension........................................ 19
6.4.1 Adjusting the hook thread tension .................................... 19
6.4.2 Adjusting the needle thread tension ................................... 20
6.5 Switching on/off the thread tensioners.................................. 22
6.6 Adjusting the thread regulator....................................... 23
6.7 Changing the needle with single-needle machines with the hook on the right .......... 24
6.8 Changing the needle with single-needle machines with the hook on the left ........... 25
6.9 Changing the needle with double-needle machines.......................... 26
6.10 Liftingandfoldingtherollerpresser................................... 27
6.11 Sewing-footpressure............................................ 28
6.11.1 Setting through the setting wheel..................................... 28
6.11.2 Constant sewing-foot pressure through the cylinder ......................... 29
6.12 Sewingbackward(backtacking) ..................................... 29
6.13 Setting the stitch length .......................................... 30
6.14 Switching on the safety clutch at the hook blocking.......................... 31
6.15 Controlling the machine equipped with the positioning motor .................... 32
6.15.1 Using the pedal ............................................... 32
6.15.2 By the key panel 9880 867101 ...................................... 33
6.15.3 By the key panel 9880 888102 ...................................... 34
6.16 Lower edge trimming control ....................................... 35
6.16.1 Switching on/off edge trimmer ...................................... 35
6.16.2 Switchingon/offmaterialguide...................................... 36
6.16.3 Materialguideadjustment......................................... 37