Jack C4 Training Courseware

Maintenance instructions
14. Adjustment of thread cutting knife:
Push the electromagnetic core of thread cutting knife by hand to
make the electromagnet core pull and at this time Scissors mouth
is close, ensure that there is no gaps between the two knives, the
amount of bite is in the 0.5-1mm and tighten the screws, it’s OK.
cutter
cutter
Fixing
screws
the
electromagnet
ic core pull

Jack C4 Specifications

General

Product Introducti	ion-technical specifications
Type/Name	C4 The Fastest Automatic Overlock Machine
Highest Speed	7000rpm/min
Differential	0.7-2.0
Thread Wideth（mm）	1.5-8.0
Presser Foot Height（mm）	5.0-7.0
Needle Type	DCX27
Needle Bar Height	（general）10.4mm/12mm（heavy）
Needle Bar Stroke	（general）24.5mm/26mm（heavy）

Weight and Dimensions

Max Length(mm)	0.8-4.8