Bernette Airlock b64 - Overview - Looper Area

My bernette Overlocker
12
2020-09 EN 5040064.00A.04
Overview - Looper area
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4
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6
1 Knife 6 Feed Dog
2 Cutting Width Dial 7 Upper Looper
3 Knife On/Off 8 Lower Looper
4 mtc Micro Thread Control Dial 9 Upper Looper Air Threader Pipe
5 Rolled Hem Selection Lever 10 Air Threader Duct Lower Looper