Front flap ...........................................................................................................................................6
Opening the free arm ......................................................................................................................7
Threading yarns into the looper......................................................................................................7
Threading yarns into the needle .....................................................................................................8
Adjusting thread tension on the needle threads ........................................................................11
Adjusting thread tension on the looper threads..........................................................................11
Overview of the machine adjustments.........................................................................................12
Changing threads (binding together)13
Setting the stitch length13
Setting the cutting width14
Exchanging needles14
Replacing bulbs15
Exchanging the upper blade15
- 1 -
Close and broad sewing with three threads16
Sewing freehanded16
Adjusting the sewing foot16
Hemstitch and edging17
Sewing hemstitch17
Sewing narrow edging17
Differential feed motion18
Manner of operation .....................................................................................................................18
Setting the differential feed motion ..............................................................................................18
Uneven material edges and smoothness.....................................................................................19
Avoid ruffles by stretching.............................................................................................................19
Troubleshooting20
Cleaning and care21
Storage21
Disposal21
Warranty and Service 22
Importer22
Read the operating instructions carefully before using the appliance for the first time and preserve this
booklet for later reference. Pass the manual on to whomsoever might acquire the appliance at a later date.
- 2 -
OVERLOCK SEWING
MACHINE KH 4300
Intended Usage
This overlock sewing machine is intended ...
– for use as a portable machine,
– for the trimming of material edges (sewing) of
typical household textiles, and ...
– only for domestic household use.
This overlock sewing machine is not intended ...
- to be installed at a permanent location,
– for the processing of other materials (e.g. leather,
canvas, sailcloth and other heavy materials),
- for commercial or industrial use.
Safety instructions
• Arrange for defective power plugs and/or cables
to be replaced at once by qualified technicians
or our Customer Service Department.
• This appliance is not intended for use by individuals (including children) with restricted physical,
physio-logical or intellectual abilities or deficiences in experience and/or knowledge unless they
are supervised by a person responsible for their
safety or receive from this person instruction in
how the appliance is to be used.
• Children should be supervised to ensure that
they do not play with the appliance.
• Never use the machine when the ventilation
apertures are blocked. Keep the ventilation
apertures of the machine and the foot switch
free from fluff, dust and waste material.
• Should the cable connected to the foot pedal
become damaged, to avoid potential risks it must
be replaced by the manufacturer, his customers
services or a similarly qualified person.
Like any other electrical device, a sewing machine
can cause serious, even life-threatening injuries.
To avoid these, and to work safely:
• Always disconnect the power supply when leaving
the machine unattended. This will prevent the
risk of accidents if the machine is switched on
accidentally.
• First pull the power plug before changing the bulb
or performing maintenance work on the machine.
This will prevent possibly life-threatening electric
shocks.
• Do not pull the plug out of the wall socket by the
lead. When pulling out the plug, always hold the
plug, not the lead.
• Only use the sewing machine in dry rooms.
Warning about injuries and
material damages:
• Keep your work space tidy. An untidy workplace
can lead to accidents.
• Provide adequate lighting when working!
• Do not wear loose clothing or jewellery, as these
can be caught in moving parts. You should also
wear a hair net if you have long hair.
• Avoid adopting an unusual posture. Remain steady
and in a well-balanced position at all times.
• If accidents occur as a result of handling the machine with insufficient care, or failure to follow
the safety instructions in this manual, then the
manufacturer cannot accept liability.
• Never cover the ventilation slots! Risk of overheating!
- 3 -
Technical Data
Items supplied
Number of threads4 or 3
Number of needles2 or 1
Sewing speed1100 Revs/min
Stitch width6 mm with 4 threads
6 mm or 4 mm with 3
threads
Stitch length1 – 5 mm
NeedlesHA x 1 Nr. 11-14 or
130/705 Nr. 75-90
Power consumption :Motor: 90 W
Bulb: 15 W
Total: 105 W
Rated voltage:230 V ~, 50Hz
Protection class:II
Bulb power:15 W
Bulb voltage: 230 V / ~50 Hz
Bulb thread: E14 thread
The sound intensity level under normal operating
conditions amounts to 78dB(A).
Foot pedal
Use only the foot pedal originally supplied with this
sewing machine:
2 Needles Nr. 11
4 Needles Nr. 14
(2 in the machine,
pre-installed)
4 Bobbin caps
4 Spool pin
(preinstalled)
Allen key
Flat-headed screwdriver
Covering hood
Pincers
Brush
- 4 -
Description of the appliance
Preparation
1 Thread tree
2 Thread tension selector (lower looper)
3 Spool support
4 Cold air intake
5 Connection Footpedal/Power supply
6 Handwheel
7 Power switch (On/Off switch)
8 Front flap
9 Arm support
0 Free arm
q Thread tension selector (left needle)
w Thread tension selector (right needle)
e Thread tension selector (upper looper)
r Thread guide
t Thread guide plate
z Adjustment wheel for stitch length
u Adjustment wheel for differential feed motion
i Adjustment wheel for cutting width
o Sewing foot
p Lower blade
a Upper blade
s Upper looper
d Lower looper
f Release lever PUSH
g Connection plug
h Foot pedal
j Power plug
k Waste container
Place the overlock sewing machine on a stable and
level surface. Ensure there is sufficient illumination at
your workplace.
Adjusting the thread tree
Completely withdraw the thread tree 1 before
threading.
Turn the thread tree 1 so that the thread guides
stand exactly above the spool supports 3.
Bobbin supports
Both industrial bobbins and household bobbins can
be used with this machine.
For industrial bobbins with a large diameter place
the bobbins supports in with the broad end to the
top, for bobbins with a small diameter place the
support in with the narrow end to the top.
- 5 -
Bobbin caps
If using non-industrial thread bobbins, remove the
bobbin supports and place the bobbin caps on the
thread bobbins.
Connecting the foot pedal
Insert the plug of the footpedal g into the connection
for the footpedal 5 and the power plug j into a
mains power socket.
To switch the machine on, press the power switch 7.
Attention!
During absences from the machine or when doing
maintenance work, always remove the plug j from
the mains power socket. Injury hazard!
Safety switch
This machine is fitted with a micro safety switch. You
cannot start the machine if the front flap 8 is open.
Close the front flap 8 before you start to sew.
Fitting the waste container
The waste container k collects remnants during
sewing, so that your workplace stays tidy. Place the
waste container k between the machine and the
table.
Handwheel
Note:
Always turn the handwheel 6 towards yourself,
that is, in the same direction as with a domestic
sewing machine.
Controlling the sewing speed
The sewing speed is controlled by means of the
footpedal h. The sewing speed is changed by applying more or less pressure to the footpedal h.
Front flap
To open the front flap 8, slide it as far as possible
to the right and, at the same time, draw it towards
yourself.
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