Operating instructions

Index Page:
Part 3: Service instructions class 1220/5
1. General notes ................................................ 3
2. Brief instructions for the sewing head
2.1 Adjusting the height of the needle bar .................................. 4
2.2 Adjusting the hook .............................................. 5
2.2.1 Distance between left hook and needle.................................. 5
2.2.2 Distance between right hook and needle................................. 7
2.3 Adjusting the needle protection ...................................... 9
2.3.1 Hind needle protection............................................ 9
2.3.2 Front needle protection ........................................... 10
2.4 Adjusting the feed-dog............................................ 11
2.4.1 Feed-dog position .............................................. 11
2.4.2 Feed-dog height ............................................... 12
2.5 Presser foot .................................................. 13
2.5.2 Presser foot lift of head EX5204 ...................................... 13
2.5.2 Presser foot lift of head S52 ........................................ 14
2.5.2 Presser foot .................................................. 15
2.6 Upper and lower knife ............................................ 16
2.6.1 Changing and adjusting the upper knife ................................. 16
2.6.2 Changing and adjusting the lower knife ................................. 17
2.7 Thread regulation of overlock hook .................................... 18
3. Adjusting the sewing unit
3.1 Adjusting the light barrier .......................................... 19
3.2 Direct sewing drive ............................................. 20
3.2.1 Setting the reference............................................. 20
4. Oil lubrication
4.1 Oil change and oil filter change ...................................... 21
5. Maintenance ................................................. 22
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