Table of contents Page
Introduction and safety instructions
Part 1 - Instructions for use - 52Xi - Original Instructions
(E
dition 07/2015)
1. Machine description ........................................... 5
2. Machine use ................................................. 5
3. Subclasses ................................................. 6
4. Sew ing equipment ............................................. 7
5. Optional e quipment ............................................ 9
6. Technical parameters ........................................... 11
7. Machine operation
7.1 Needle threading ............................................. 12
7.2 Hookthreadwinding ........................................... 13
7.3 Bobbin fixing and hook threading .................................... 14
7.4 Threadtensionadjustment ........................................ 15
7.4.1 Hookthreadtensionadjustment ..................................... 15
7.4.2 Needle thread tension adjustment .................................... 16
7.5 Needle replacement ............................................ 17
7.6 Footlifting .................................................. 18
7.7 Footpressuresetting............................................ 19
7.8 Stitch length setting ............................................ 19
7.9 Backtacking (reverse feeding; closing up) ............................... 20
7.10 Zig-zagstitchwidth(throw)andpositionsetting ........................... 21
7.11 Control of machine equipped with clutch positioning motor
and solenoid automatic control ...................................... 22
7.11.1 Control pedal ................................................ 22
7.11.2 Key control panel .............................................. 23
8. Positioning motor ............................................. 24
8.1 Efka DC1550/DA321G ........................................... 24
8.2 DACeco/classic............................................... 24
9. Sew ing w ith machine equipped w ith positioning motor
9.1 Machineautomaticfunctions ....................................... 25
9.2 Example of machine control/operation ................................. 26
10. Maintenance
10.1 Cleaning and checking ........................................... 27
10.2 Lubrication .................................................. 28
