Liebersew 737 - Page 2

Contents
TO
THE OPERATERS
......
HOW
TO INSTALL
THE
MACHINE
...
HOW
TO OPERATE
THE
NEW
MACHINE
LUBRICATION
AND
DRAINAGE
""''""
I
l.Lubrication
"""""'
"""""""
I
2.Drainage
3. Needle
Cooling
Lubrication-silicon
oil
""""":"""""""
"
j""""""""""'
I
THREADING
THE MACHINE
""'"''
2
THREAD
TENSION
.",...",
2
l.TensionNutsAdjustment
"""
""""""2
2. Needle Thread
Control
3.
LooperThreadControl
"""""""'3
..',....3
4. Chain Looper
Thread
Cam
Contol
""""""
ST]TCH LENGTH
ADJUSTMENT
...
"""
3
NEEDLE
REPLACEMENT
:...".".''
DIFFERENTIAL
FEED
RATIO
ADJUSTMENT
."
"""
4
PARTS
RELATION
AND
TIMING
...."
'""""'"
4
l. Needle
and
Needle Plate
"'
"""
4
2. Upper
Looper
andNeedle
3. LowerlooperandNeedle
"""""""""'5
4. Upper
Looper
aird
Lower
LoPPer
5.
Needle
and
Needle
Guard
"""""""""
5
6. Chain
Looper and
Needle
" "
"
5
Clear
a
stoppage
""""""'
6
MAIN
SPECIF
ATIONS
Models
Thread
Sewing
speed
(volv/min)
Stitch
length
(mm)
Presser
foot
lift
(mm)
Decibel
(dB)
Torque
(N'm)
Overedge
width
(mm)
3
5500
-
6000
0-5
6
=84
=0.4
1.5-6
747
4
5500
-
6000
0-5
6
=84
=0.4
1.5-6
7s7
5
5500
-
6000
0-5
6
s84
>_o.4
1.5-6