Operation Manual

CONTENTS
i.Parts
name
1
2.
Preparation and running
the machine
2
3.
Notes on
the motor
2
4. Drive belt
tension
3
5.
Lubrication
3
6.
Opening
and closing the
looper
cover
3
7. Operating
the machine
4
Threading
procedure
4
8.
Test sewing
5
9.
Thread tension
and adjustment
6
10.
Main
points when sewing
7
11. Presser toot pressure
7
12.
Types
of seam and
their applications
8
Folding
back the
upper
knife
8
Disengaging the overlock
looper
9
Interchanging the
upper
knife guard and
welt
guide
9
1 3,
Adjusting
stitch length
1
0
14.
Replacing
needles
11
1 5. Replacing the knives
11
1 6. Replacing the drive
motor carbon
brushes
13
1 7. Causes of poor sewing
and
its
solution
14
18.
Variation
of weight of
fabric,
threads
and stitch
length
1
5
19. Specification
15
20. Packing details
1
5
21.Accessories
16