Kemppi MinarcTig 180 User manual

MinarcMig Adaptive 180
Operating manual • English
Käyttöohje • Suomi
Bruksanvisning • Svenska
Bruksanvisning • Norsk
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Manuel d’utilisation • Français
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EN
OPERATING MANUAL
English
MinarcMig 180 / © Kemppi Oy / 1117

EN
CONTENTS
1. PREFACE.................................................................................................................3
1.1 General..........................................................................................................................3
1.2 Properties ...................................................................................................................3
1.3 About welding .........................................................................................................4
2. MACHINE USE .................................................................................................5
2.1 Before implementation ......................................................................................5
2.2 General view of the machine ...........................................................................6
2.3 Distribution network.............................................................................................6
2.4 Cable connections .................................................................................................6
2.5 Filler wire .....................................................................................................................9
2.5.1 Changing the feed roll groove .................................................................9
2.5.2 Threading the ller wire ..........................................................................10
2.5.3 Reversing polarity ......................................................................................11
2.6 Controls and indicator lights.........................................................................12
2.6.1 Display in automatic mode ....................................................................13
2.6.2 Welding power adjustment in automatic mode ............................14
2.6.3 Arc length trimmer in automatic mode ............................................14
2.6.4 Display in manual mode .........................................................................15
2.6.5 Adjustments in manual mode ..............................................................15
2.7 Threading the shoulder strap .......................................................................16
3. SERVICE ..............................................................................................................17
3.1 Daily maintenance .............................................................................................17
3.2 Maintenance of the wire feed mechanism ...........................................17
3.3 Disposal .....................................................................................................................19
4. TROUBLESHOOTING............................................................................19
5. ORDERING NUMBERS.........................................................................20
6. TECHNICAL DATA.....................................................................................21
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MinarcMig 180 / © Kemppi Oy / 1117

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1. PREFACE
1.1 GENERAL
Congratulations on choosing the MinarcMig equipment. Used correctly,
Kemppi products can signicantly increase the productivity of your welding,
and provide years of economical service.
This operating manual contains important information on the use,
maintenance and safety of your Kemppi product. The technical specications
of the equipment can be found at the end of the manual.
Please read the manual carefully before using the equipment for the rst
time. For your own safety and that of your working environment, pay
particular attention to the safety instructions in the manual.
For more information on Kemppi products, contact Kemppi Oy, consult an
authorised Kemppi dealer, or visit the Kemppi web site at www.kemppi.com.
The specications presented in this manual are subject to change without
prior notice.
Important notes
Items in the manual that require particular attention in order to minimise
damage and personal harm are indicated with the ’NOTE!’ notation. Read
these sections carefully and follow their instructions.
1.2 PROPERTIES
MinarcMig Adaptive 180 is an easy-to-use MIG welding machine suitable
for both hobby and professional use. The welding machine is small, ecient
and extremely light. It is easy to carry with the help of a shoulder strap. The
machine is suitable for a range of dierent purposes and the possibility to
use a long extention cord eases operation in various sites. It is also suitable
for generator use on construction sites.
The machine has both an automatic and manul mode. In the automatic
mode, you must rst select the ller wire material after which the welding
voltage and wire feed speed can be adjusted with one control according
to the thickness of the welded sheet. Thus, selecting the right parameters is
easy. In automatic mode, the length of the arc, or welding heat, is trimmed
with another control. In manual mode, the welding voltage and wire feed
speed are adjusted separately with their own controls. The use of the
machine is aided with a display which also displays the welding current,
welding voltage and wire feed speed.
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MinarcMig 180 / © Kemppi Oy / 1117

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You can also use steel wire (solid or cored wire), stainless steel wire or
aluminium wire as ller wire in the machine. The steel wire can be 0.6 mm, 0.8
mm or 1.0 mm thick, but the machine’s welding properties are optimum with
a steel wire of 0.8 mm diameter. The stainless steel wire can be 0.8 mm, 0.9
mm or 1.0 mm in diameter and the aluminium wire 1.0 mm.
1.3 ABOUT WELDING
In addition to the welding machine, welding outcome is inuenced
by the piece being welded and the welding environment. Therefore,
recommendations in this manual must be followed.
During welding electric current is led with the welding gun’s current nozzle
to the ller wire and via that to the welded piece. Earthing cable attached to
the workpiece guides the current back to the machine, forming the needed
closed circuit. Unrestricted current ow is possible when the earthing clamp
is properly attached to the workpiece and the xing point of the clamp on
the workpiece is clean, paintless and rustfree.
Shielding gas must be used during welding in order to prevent air from
mixing with the weld pool. Pure carbon dioxide or a mixture of argon and
carbon dioxide is suitable for steel wire shielding gas. Argon + 2 % CO²
mixture is suitable for stainless steel wires. Argon is suitable for welding
aluminium wires. Some ller wires form a shielding gas from the wire’s lling
as it melts thus eliminating the need for a separate shielding gas.
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MinarcMig 180 / © Kemppi Oy / 1117

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2. MACHINE USE
The machine is delivered ready for operation without adjustments with
0.8 mm diameter ller wire.
If you use dierent thickness ller wire, make sure that the feed roll groove,
welding gun contact tip and machine polarity are suited for the used
wire size and type. If you mainly use aluminium or stainless steel wire, we
recommend you change the wire guide to a plastic one which is better suited
for the wire type.
2.1 BEFORE IMPLEMENTATION
The products are packed to durable packages especially designed for them.
However, always make sure before use that the products have not been
damaged during transportation. Check also, that you have received the
products you ordered and the instruction manuals needed. Product packing
material is recyclable.
Transportation
The machine should be transported in an upright position.
NOTE! Always move the welding machine by lifting it from the handle. Never pull
it from the welding gun or other cables.
Environment
The machine is suitable for both indoor and outdoor use, but it should be
protected from heavy rain and sunshine. Store the machine in a dry and clean
environment and protect it from sand and dust during use and storage. The
recommended operating temperature range is -20° C – +40° C.
Place the machine in such a way that it does not come in contact with hot
surfaces, sparks and spatters.
Make sure the air ow in the machine is unrestricted.
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2.2 GENERAL VIEW OF THE MACHINE
1. Welding gun
2. Earthing cable
3. Main switch
4. Supply voltage cable
5. Shielding gas hose connector
2.3 DISTRIBUTION NETWORK
All regular electrical devices without special circuits generate harmonic
currents into distribution network. High rates of harmonic current may cause
losses and disturbance to some equipment.
WARNING: This equipment does not comply with IEC 61000-3-12. If it is
connected to a public low voltage system, it is the responsibility of the
installer or user of the equipment to ensure, by consultation with the
distribution network operator if necessary, that the equipment may be
connected.
2.4 CABLE CONNECTIONS
Connection to the mains
The machine is equipped with a 3.3 m long supply voltage cable and plug.
Connect the supply voltage cable to the mains.
NOTE! The fuse size needed is 16 A delayed.
If you use an extension cord, its cross-sectional area should be at least as
large as the supply voltage cable’s (3 x 2.5 mm²). The maximum length for the
extension cord is 50 m.
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MinarcMig 180 / © Kemppi Oy / 1117

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The machine can also be used with a generator. The minimum power for the
generator is 4.2 kVA, and the recommended power 8.0 kVA in order for the
machine to be used at maximum capacity.
Earthing
The earthing cable is already connected to the machine. Clean the workpiece
surface and x the earthing cable clamp to the piece in order to create a
closed and interference-free circuit needed for welding.
Welding gun
The welding gun is already connected to the machine. The welding gun
leads the ller wire, shielding gas and electric current to the weld. When you
press the welding gun trigger, shielding gas ow and wire feed begin. The arc
ignites, when the ller wire touches the welded piece.
The factory-installed wire guide in the welding gun is best suited for steel
wire welding. However, it can temporarily be used for stainless steel wire
and aluminium wire welding. Then, however, friction is greater and thus the
wire feed may tangle. If you mainly use stainless steel or aluminium wire, we
recommend you change the wire guide to a plastic wire guide.
The gun neck can be rotated 360°. When turning the neck, always make
sure that the neck is twisted almost all the way to the bottom. This prevents
damaging and overheating the neck.
NOTE! If you use other than 0.8 mm diameter ller wire, change the welding gun
contact tip to match the wire thickness.
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Shielding gas
The shielding gas used for steel wires is carbon dioxide or a mixture of argon
and carbon dioxide which replaces air in the arc’s area. Shielding gas for
stainless steel wires is a mixture of argon and carbon dioxide (2%) and argon
for aluminium wires. Thickness of the welded sheet and welding power
dene the ow rate of the shielding gas.
The machine is delivered with a 4.5 m long shielding gas hose. Connect the
bayonet socket of the shielding gas hose to the machine’s hose connector
and the hose connector end to the gas bottle’s control valve.
1. Connect the hose to the gas bottle’s control valve and tighten the
connector.
2. Adjust the ow rate with the control valve screw. A suitable shielding gas
ow rate is 8–15 l/min.
3. Close the bottle’s valve after use.
NOTE! Use a shielding gas suitable for the material’s welding. Fix the gas bottle
securely in an upright position before installing the control valve.
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MinarcMig 180 / © Kemppi Oy / 1117