Jack C4 Training Courseware

P13
resser
foot lift when
half
re
verse press pedal
0 - 1 1
0：
off 1：presser foot lift
when
half or full reverse press
pedal
P14
manual suction
0 - 2 0
0：
off 1：back suction
2：
front and back suction
P15
LED
light switch 0 - 3 1
0：
off 1-3：on
P16
sleep
mode switch 0 - 1 1
0：
off 1：on
P17
Semi
-auto continuous sewing 0 - 2 2
0:
Off
1
：Touch front pedal for continuous
sewing
2
：continuous sewing ignore front sensor
switch
P18
Semi
-auto Constant speed
trimming
0 - 1 1
0：
off 1：Fixing speed for front
trimming
Operation instructions– Parameter Introduction

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