3. Preparation (Fig.1)
1. Brief introduction
2. Main technical specifications
1
1
Application
Max.sewing speed
Presser foot lift volume
Max.stitch length
Needle bar stroke
Needle
Rotating hook
Lubrication
Motor power
2 5 0 0 r . p . m
7 m m b y h a n d , 9 m m b y k n e e
5 m m
Medium and heavy duty materials
O i l i n g b y h a n d
3 7 0 W
3 8 m m
DP
5 14
20
～
#
#
H o r i z o n t a l h o o k
A
C
B
GC20616 adopts link thread take-up,driven roller poresser
foot, and timing feed of roller and needle. Vertical hooks
for threading looping forms lockstitch seam. The upper
shaft and rock shaft are driven by teeth-type synchronic
belt. In addition, the main working parts adopt needle or
ball bearing. Knob - type stitch length regulator makes the
operation easy.
This model is widely used in manufacturing arc products
as high-quality leather shoes, packing and gloves.
Before delivery, the machine parts are coated with rust preventive gerase, which may be hardened and contaminated by dust
during storage and shipment. The grease must be removed by clean cloth with gasoline.
Though every machine is confirmed by strict inspection and test before delivery, the machine parts may be loosened or
deformed after long distance transportation with jolt. A thorough examination must be performed after cleaning the machine.
Turn the balance wheel to see if there is running obstruction, parts collision, uneven resistance or abnormal noise. If these
exist, adjustment must be made accordingly before running.
1. Cleaning the machine
2. Inspection
4. Installing the machine head (Fig.1)
Put the cushion A and B into the table cutout, and set the
connecting hook C on the cushion B, then turn the machine
head freely till it is seated on the frame of table cutout.
