Kemppi FastMig MF 29 Manuel utilisateur

Operation instructions • english

Gebrauchsanweisung • deutsch

Gebruiksaanwijzing • nederlands

Manuel d’utilisation • français

1906320E

0603

FASTMIG™

MF 29

CONTENTS
PREFACE ...................................................................................................................... 3
1. INTRODUCTION ......................................................................................................... 3
2. PRODUCT INTRODUCTION ...................................................................................... 3
2.1. OPERATION CONTROL AND CONNECTORS ............................................. 4
2.2. CONNECTION OF SYSTEM ......................................................................... 5
2.3. PARTS OF WIRE FEED MECHANISM, MF 29 ............................................. 6
3. OPERATION SAFETY ................................................................................................. 7
INSTALLATION .............................................................................................................. 8
1. ASSEMBLY OF MIG SYSTEM .................................................................................... 8
2. MOUNTING OF MIG WELDING GUN ........................................................................ 8
3. MOUNTING AND LOCKING OF WIRE REEL ............................................................. 8
4. AUTOMATIC WIRE FEED TO GUN ............................................................................ 9
5. ADJUSTMENT OF PRESSURE .................................................................................. 9
6. ADJUSTMENT OF TIGHTNESS OF REEL BRAKE .................................................... 9
7. BURN BACK TIME ...................................................................................................... 9
8. GROUND CABLE ...................................................................................................... 10
9. SHIELD GAS ............................................................................................................. 10
9.1. INSTALLING GAS BOTTLE ......................................................................... 10
10. MAIN SWITCH I/O ....................................................................................................11
11. OPERATION OF COOLING UNIT, FASTCOOL 10 ..................................................11
12. HANGING .................................................................................................................11
SERVICE, OPERATION DISTURBANCES ..................................................................11
DISPOSAL OF THE MACHINE ................................................................................... 12
ORDERING NUMBERS ............................................................................................... 12
TECHNICAL DATA ...................................................................................................... 13
TERMS OF GUARANTEE ........................................................................................... 14
– 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

24.8.2005 12:55

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

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

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

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