Kemppi fastmig MF 29 Operation Instructions Manual

Operation instructions • english
Gebrauchsanweisung • deutsch
Gebruiksaanwijzing • nederlands
Manuel d’utilisation • français

1906320E

0603

FASTMIG™

MF 29

CONTENTS

1. PREFACE ...................................................................................................................... 3

1.1. INTRODUCTION ......................................................................................................... 3

1.2. PRODUCT INTRODUCTION ...................................................................................... 3

1.2.1. OPERATION CONTROL AND CONNECTORS ............................................. 4

1.2.2. CONNECTION OF SYSTEM ......................................................................... 5

1.2.3. PARTS OF WIRE FEED MECHANISM, MF 29 ............................................. 6

1.3. OPERATION SAFETY ................................................................................................. 7

2. INSTALLATION .............................................................................................................. 8

2.1. ASSEMBLY OF MIG SYSTEM .................................................................................... 8

2.2. MOUNTING OF MIG WELDING GUN ........................................................................ 8

2.3. MOUNTING AND LOCKING OF WIRE REEL ............................................................. 8

2.4. AUTOMATIC WIRE FEED TO GUN ............................................................................ 9

2.5. ADJUSTMENT OF PRESSURE .................................................................................. 9

2.6. ADJUSTMENT OF TIGHTNESS OF REEL BRAKE .................................................... 9

2.7. BURN BACK TIME ...................................................................................................... 9

2.8. GROUND CABLE ...................................................................................................... 10

2.9. SHIELD GAS ............................................................................................................. 10

2.9.1. INSTALLING GAS BOTTLE ......................................................................... 10

2.10. MAIN SWITCH I/O ....................................................................................................11

2.11. OPERATION OF COOLING UNIT, FASTCOOL 10 ..................................................11

2.12. HANGING .................................................................................................................11

3. SERVICE, OPERATION DISTURBANCES ..................................................................11

4. DISPOSAL OF THE MACHINE ................................................................................... 12

5. ORDERING NUMBERS ............................................................................................... 12

6. TECHNICAL DATA ...................................................................................................... 13

7. TERMS OF GUARANTEE ........................................................................................... 14

2 – FASTMIG™ MF 29 / 0603 © KEMPPI OY

1. PREFACE

1.1. INTRODUCTION

Congratulations on having purchased this product. Properly installed Kemppi products should
prove to be productive machines requiring maintenance at only regular intervals. This manual is
arranged to give you a good understanding of the equipment and its safe operation. It also contains
maintenance information and technical specifications. Read this manual from front to back before
installing, operating or maintaining the equipment for the first time. For further information on
Kemppi products please contact us or your nearest Kemppi distributor.

The specifications and designs presented in this manual are subject to change without prior
notice.

In this document, for danger to life or injury the following symbol is used:
Read the warning texts carefully and follow the instructions. Please also study the Operation safety

instructions and respect them when installing, operating and servicing the machine.

1.2. PRODUCT INTRODUCTION

FastMig™ MF is basic wire feeder designed for demanding enviroment.

This equipment’s electromagnetic compatibility (EMC) is designed for use in an
industrial environment. Class A equipment is not intended for use in residential location
where the electrical power is provided by the public low-voltage supply system.

FASTMIG™ MF 29 / 0603 – 3© KEMPPI OY

1.2.1. Operation control and connectors

MF 29

Operation panel

Connection of welding gun EURO

Lead-in of cooling
liquid hoses

Connection for control cable

Shielding gas connection

Welding current cable connector

Selection of gun
switch function

Adjustment of
wire feed speed

Adjustment of
welding voltage

4 – FASTMIG™ MF 29 / 0603 © KEMPPI OY

1.2.2. Connection of system

FASTMIG™ MF 29 / 0603 – 5© KEMPPI OY

1.2.3. Parts of wire feed mechanism, MF 29

6 – FASTMIG™ MF 29 / 0603 © KEMPPI OY

1.

2. 2.

1.3. OPERATION SAFETY

Please study these Operation safety instructions and respect them when installing, operating and
servicing the machine.

Welding arc and spatters

Welding arc will hurt unprotected eyes, also be very careful with reflecting arc flash. Welding arc
and spatter will burn unprotected skin. Therefore it is highly recommended to always use safety
gloves and protective clothing.

Danger for fire or explosion

Pay attention to fire safety regulations. Remove flammable or explosive materials from welding
area. Always reserve sufficient fire-fighting equipment on welding area. Be prepared for hazards
in special welding jobs, eg. for the danger of fire or explosion when welding container type work
area. Note! Fire can break out from sparks even several hours after the welding work has been
finished!

Mains voltage

Never take welding machine inside a work area (eg. container or truck). Do not place welding
machine on a wet surface. Always check cables before operating the machine. Change defect cables
without delay. Defect cables may cause an injury or set out a fire. Connection cable must not be
compressed, it must not touch sharp edges or hot work pieces.

Welding power circuit

Isolate yourself by using proper protective clothing, do not wear wet clothing. Never work on a
wet surface or use defect cables. Do not put MIG-gun or welding cables on welding machine or
on other electric equipment. Do not press MIG-gun switch, if the gun is not directed towards a
work piece.

Welding fumes

Take care that there is sufficient ventilation during welding. Take special safety precautions when
welding metals, which contain lead, cadmium, zinc, mercury or beryllium.

FASTMIG™ MF 29 / 0603 – 7© KEMPPI OY

2. INSTALLATION

2.1. ASSEMBLY OF MIG SYSTEM

Assemble the units in order mentioned below and follow mounting and operation instructions
which are delivered in packages.

1. Installation of power source

Read paragraph: ”Installation” in operation instructions for FastMig™ power sources and carry
out the installation according to that.

2. Mounting of KM power sources to transport wagon

Read and follow the instructions given in the transport cart installation/assembly manual

3. Connecting cables

Connect the cables in accordance with the equipment notes provided.
The polarity of the welding wire (+ or -) can be changed by replacing the MF welding current cable

and return current cable with the FastMig™ power source welding cable connector.

4. Mounting of FastMig™ wire feed units to boom

Wire feed unit must be mounted to boom in such a way that its chassis is galvanic
separated both from swing arm and boom.

Suspension angle of wire feed unit can be changed by moving fixing point in handle.

2.2. MOUNTING OF MIG WELDING GUN

In order to ensure trouble-free welding check in operation instructions of gun used by you that
wire guide tube and contact tip of gun are according to manufacturer’s recommendation suitable
to be used for wire feed diameter and type in question. To tight a wire guide tube might cause for
wire feed unit a bigger stress than normally as well as disturbances in wire feed.

Screw snap connector of gun tight that there won’t come any voltage losses on connecting surface.
A loose connection will heat gun and wire feed unit and feeder.

2.3. MOUNTING AND LOCKING OF WIRE REEL

– Release the locking nut (A)!
– Mount the reel at its place. Note rotating direction of reel
– Lock the reel with locking nut..

Check that in filler wire reel there are no parts sticking out, which could e.g. chafe
against chassis or door of wire feed unit. Dragging parts might expose chassis of wire
feed unit under voltage.

8 – FASTMIG™ MF 29 / 0603 © KEMPPI OY

A

B

2.4. AUTOMATIC WIRE FEED TO GUN

Automatic wire feed makes change of wire reel more rapid. In reel change the pressure of feed
rolls need not to be released and filler wire goes automatically to correct wire line.

– Make sure that groove of feed roll matches the diameter of welding wire used.
– Release the wire end from reel and cut off the bent length. Be careful that the wire does not

spill from the reel to sides!

– Straighten about 20 cm of the wire and see that the end of it has no sharp edges (file off if

necessary). A sharp edge may damage the wire guide tube and contact tip of the welding
gun.

FastMig™ MF 29 wire feed unit:

– Draw a bit of loose wire from wire reel. Feed wire through back liner to feed rolls. Do not

release pressure of feed rolls!

– Press the gun switch and feed wire until wire goes through feed rolls to gun. See that

wire is in grooves of both feed roll pairs!

– Press still the gun switch until wire has come through contact tip.

Automatic feed may sometimes fail with thin wires (Fe, Fc, Ss: 0,6...0,8 mm, Al: 0,8...1,0 mm). In
that case you might have to open feed rolls and feed wire manually through feed rolls.

2.5. ADJUSTMENT OF PRESSURE

Adjust the pressure of feed rolls with the control screw (20) so that the wire is fed into the wire
guide tube evenly and allows a little braking when coming out from the contact tip without slipping
at the feed rolls.

Excessive pressure causes flattening of the filler wire and damage to the coating. It also
causes undue wear of the feed rolls as well as friction.

2.6. ADJUSTMENT OF TIGHTNESS OF REEL BRAKE

Adjust brake force as so big that the wire is not allowed to become too loose on the reel so that
it would spill from the reel when the rotation of the reel stops. Need for brake force is increased
with increase of wire feed speed.

Since the brake loads for its part the motor, you shouldn’t keep it unnecessarily tight.

2.7. BURN BACK TIME

Electronics of feed unit controls stopping of welding automatically so that the wire end doesn’t
melt fastened to the contact tip or the work piece. Automatics work regardless of the wire feed
speed. Can be adjusted also from power source SETUP-menu ('PoC').

Brake force is adjusted by screwing the
adjusting nut (B), tightening clockwise
direction.

FASTMIG™ MF 29 / 0603 – 9© KEMPPI OY

A

B

2.8. GROUND CABLE

Connecting of earth cable should be preferably connected directly to the welding material. Contact
surface of press always should be as large as possible.

Clean the fastening surface from paint and rust!
Use in your MIG equipment at least 70 mm². Thinner cross-sectional areas might cause overheating

of connectors and insulations.
Make sure that the welding gun in your use is designed for max. welding current needed by you!
Never use a damaged welding gun!

2.9. SHIELD GAS

Handle gas bottle with care. There is a risk for injury if gas bottle or bottle valve is
damaged!

For welding stainless steels, mixed gases are normally used. Check that the gas bottle valve is
suitable for the gas. The flow rate is set according to the welding power used in the job. A suitable
flow rate is normally 8 – 10 l/min. If the gas flow is not suitable, the welded joint will be sporous.
Contact your local Kemppi-dealer for choosing gas and equipment.

2.9.1. Installing gas bottle

Always fasten gas bottle properly in vertical position in a special holder on the wall or
on a carriage. Remember to close gas bottle valve after having finished welding.

Parts of gas flow regulator

A Gas bottle valve
B Press regulation screw
C Connecting nut
D Hose spindle
E Jacket nut
F Gas bottle pressure meter
G Gas hose pressure meter

The following installing instructions are valid for most of the gas flow regulator types:

1. Step aside and open the bottle valve (A) for a while to blow out possible impurities from
the bottle valve.

2. Turn the press regulation screw (B) of the regulator until no spring pressure can be felt.

3. Close needle valve, if there is one in the regulator.

4. Install the regulator on bottle valve and tighten connecting nut (C) with a wrench.

5. Install hose spindle (D) and jacket nut (E) into gas hose and tighten with hose clamp.

6. Connect the hose with the regulator and the other end with the wire feed unit. Tighten the
jacket nut.

7. Open bottle valve slowly. Gas bottle pressure meter (F) shows the bottle pressure.
Note! Do not use the whole contents of the bottle. The bottle should be filled when the bottle
pressure is 2 bar.

8. Open needle valve if there is one in the regulator.

9. Turn regulation screw (B) until hose pressure meter (G) shows the required flow (or pressure).
When regulating flow amount, the power source should be in switched on and the gun switch
pressed simultaneously.

Close bottle valve after having finished welding. If the machine will be out of use for a long time,
unscrew the pressure regulation screw.

10 – FASTMIG™ MF 29 / 0603 © KEMPPI OY

E

B

D

G

A

F

C

2.10. MAIN SWITCH I/O

When you turn the main switch of the FastMig™ power source into I-position, the pilot lamp
closest to this switch will light up, indicating the power source is ready for welding.

Always start and switch off the machine with the main switch, never use the mains
plug as a switch.

2.11. OPERATION OF COOLING UNIT, FASTCOOL 10

Operation of cooling unit is controlled in such a way that pump is started when welding is started.
After welding stop pump is rotating for approx. 5 min cooling the gun and the cooling liquid to
ambient temperature.

Read in operation instructions for the Fastcool 10 unit the trouble situations of the liquid circulation
system and protection against torch etc. damage.

2.12. HANGING

MF 29 can be hanged to the barrier with an optional hanging frame (6185285). The machine is not
supposed to be hanged from its handle.

3. SERVICE, OPERATION DISTURBANCES

The amount of use and the working environment should be taken into consideration when planning
the frequency of maintenance of MF. Careful use and preventive maintenance will help to ensure
trouble-free operation.

The following maintenance operations should be carried out at
least every six months:

Check:

– The wear of the grooves of the feed rolls. Excessive wear

of grooves causes problems in wire feed.

– The wear of the wire guide tubes of wire feed. Badly worn

feed rolls and wire guide tubes should be discarded.

– The wire guide tube in the gun should be set as near the

feed rolls as possible, but not touching them and the wire
must follow a straight line from the end of the tube to the

groove of the feed roll.
– Reel brake adjustment.
– Electric connections
* Oxidised couplings must be cleaned
* Loose couplings must be tightened

Clean dust and dirt from the equipment.

When using compressed air, always protect your eyes with proper eye protection.

In case of problems contact your KEMPPI dealer.

twice
a year

FASTMIG™ MF 29 / 0603 – 11© KEMPPI OY

4. DISPOSAL OF THE MACHINE

Do not dispose of electrical equipment together with normal waste!
In observance of European Directive 2002/96/EC on Waste Electrical and Electronic

Equipment and its implementation in accordance with national law, electrical equipment
that has reached the end of its life must be collected separately and returned to an
environmentally compatible recycling facility. As the owner of the equipment, you should
get information on approved collection systems from our local representative.

By applying this European Directive you will improve the environment and human
health!

5. ORDERING NUMBERS

MF 29 6063200
KM 300 3-ph 400V 6033000
KM 400 3-ph 400V 6034000
KM 500 3-ph 400V 6035000
Cooling unit Fastcool 10 6068100
Transport unit PM500 6185291

Accessories

KWF 300 protection slides 6185286
KWF gas flow regulator (mounting set) W000364

MIG-guns

MMT 25 3 m 6252513MMT

MMT 25 4,5 m 6252514MMT
MMT 27 3 m 6252713MMT
MMT 27 4,5 m 6252714MMT
MMT 32 3 m 6253213MMT
MMT32 4,5 m 6253214MMT
MMT 35 3 m 6253513MMT
MMT 35 4,5 m 6253514MMT
MMT 42 3 m 6254213MMT
MMT 42 4,5 m 6254214MMT
MMT 30W 3 m 6253043MMT
MMT 30W 4,5 m 6253044MMT
MMT 42W 3 m 6254203MMT
MMT 42W 4,5 m 6254204MMT
MMT 52W 3 m 6255203MMT
MMT 52W 4,5 m 6255204MMT

Interconnecting cables

KM 70-1.8-WH 6260411

KM 70-15-WH 6260412
KM 70-1.8-GH 6260413
KM 70-15-GH 6260414

12 – FASTMIG™ MF 29 / 0603 © KEMPPI OY

6. TECHNICAL DATA

The products meet conformity requirements for CE marking.

MF 29

Working voltage (safety voltage) 50 VDC

Rated power 100 W

Max. load (nominal values)

60 % ED 520 A

100 % ED 440 A

Operation principle 4-roll feed

Diameter of feed roll 32 mm

Wire feed speed 0...25 m/min

Filler wires

ø Fe, Ss 0,6...1.6

ø Cored wire 0,8...1.6

ø Al 1,0...1.6

Wire reel

max. weight 5 kg

max. size ø 200 mm

Gun connector Euro

Operation temperature range -20...+40 °C

Storage temperature range -40...+60 °C

Degree of protection IP 23 C

Dimensions

length 510 mm

width 200 mm

height 310 mm

Weight 9.4 kg

FASTMIG™ MF 29 / 0603 – 13© KEMPPI OY

7. TERMS OF GUARANTEE

Kemppi Oy provides a guarantee for products manufactured and sold by them if defects in
manufacture and materials occur. Guarantee repairs must be carried out only by an Authorised
Kemppi Service Agent. Packing, freight and insurance costs to be paid by orderer. The guarantee is
effected on the date of purchase. Verbal promises which do not comply with the terms of guarantee
are not binding on guarantor.

Limitations on guarantee

The following conditions are not covered under the terms of guarantee: defects due to natural wear
and tear, non-compliance with operating and maintenance instructions, connection to incorrect or
faulty supply voltage (including voltage surges outside equipment spec.), incorrect gas pressure,
overloading, transport or storage damage, fire of damage due to natural causes i.e. lightning or
flooding.

This guarantee does not cover direct or indirect travelling costs, daily allowances or accommodation.
Note: Under the terms of guarantee, welding torches and their consumables, feeder drive rolls and
feeder guide tubes are not covered. Direct or indirect damage due to a defective product is not
covered under the guarantee. The guarantee is void if changes are made to the product without
approval of the manufacturer, or if repairs are carried out using non-approved spare parts.

The guarantee is also void if repairs are carried out by non-authorised agents.

Undertaking guarantee repairs

Guarantee defects must be informed to Kemppi or authorised Kemppi Service Agents within the
guarantee period. Before any guarantee work is undertaken, the customer must provide proof of
guarantee or proof of purchase, and serial number of the equipment in order to validate the guarantee.
The parts replaced under the terns of guarantee remain the property of Kemppi.

Following the guarantee repair, the guarantee of the machine or equipment, repaired or replaced,
will be continued to the end of the original guarantee period.

14 – FASTMIG™ MF 29 / 0603 © KEMPPI OY

KEMPPI OY
PL 13
FIN – 15801 LAHTI
FINLAND
Tel [phone]
Telefax [phone]
www.kemppi.com

KEMPPIKONEET OY
PL 13
FIN – 15801 LAHTI
FINLAND
Tel [phone]
Telefax [phone]
e-mail: myynti.fi @kemppi.com

KEMPPI SVERIGE AB
Box 717
S – 194 27 UPPLANDS VÄSBY
SVERIGE
Tel [phone]
Telefax [phone] 94
e-mail: [e-mail]

KEMPPI NORGE A/S
Postboks 2151, Postterminalen
N – 3103 TØNSBERG
NORGE
Tel [phone]
Telefax 33 34 60 10
e-mail: [e-mail]

KEMPPI DANMARK A/S
Literbuen 11
DK – 2740 SKOVLUNDE
DANMARK
Tel [phone]
Telefax 44 941 536
e-mail:[e-mail]

KEMPPI BENELUX B.V.
Postbus 5603
NL – 4801 EA BREDA
NEDERLAND
Tel [phone]
Telefax [phone]
e-mail: [e-mail]

KEMPPI (UK) Ltd
Martti Kemppi Building
Fraser Road
Priory Business Park
BEDFORD, MK443WH
ENGLAND
Tel [phone]
Fax [phone]
e-mail: [e-mail]

KEMPPI FRANCE S.A.
65 Avenue de la Couronne des Prés
78681 EPONE CEDEX
FRANCE
Tel [phone]
Telefax (01) 30 90 04 45
e-mail: [e-mail]

KEMPPI GmbH
Otto – Hahn – Straße 14
D – 35510 BUTZBACH
DEUTSCHLAND
Tel [phone]
Telefax (06033) 72 528
e-mail:[e-mail]

KEMPPI SP. z o.o.
Ul. Piłsudskiego 2
05-091 ZA¸BKI
Poland
Tel [phone]
Telefax [phone]
e-mail: [e-mail]

KEMPPI WELDING
MACHINES AUSTRALIA PTY LTD
P.O. Box 404 (2/58 Lancaster Street)
Ingleburn NSW 2565, Australia
Tel. [phone]
Telefax [phone]
e-mail: [e-mail]

Ver. 9

www.kemppi.com