Kemppi MTP 350 Manuale utente

1925810

0907

MTP

MIG

MTP

MTP 350

MTP 500

OPERATING MANUAL

English

CONTENTS

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

1.1 Introduction......................................................................................................3

1.2 Product introduction.....................................................................................3

1.3 Operation safety..............................................................................................3

2. CONNECTING THE GUN..........................................4

3. USE AND MAINTENANCE.......................................5

4. OPERATION DISTURBANCES.................................6

5. ORDERING NUMBERS.............................................7

6. TECHNICAL DATA....................................................8

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 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.

Please also study the Operation safety instructions and respect them

when installing, operating and servicing the product.

1.2. PRODUCT INTRODUCTION

KEMPPI MTP MIG/MAG guns for manual welding are designed for

demanding professional use. They are suitable to be used in all MIG

units equipped with Euro adapter.

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 hurts unprotected eyes. Be careful also with reecting arc

ash. Welding arc and spatter burn unprotected skin. Use safety gloves

and protective clothing.

Danger for re or explosion

Pay attention to re safety regulations. Remove ammable or explosive

materials from welding place. Always reserve sufficient fire-fighting

OPERATING MANUAL

English

The gun is equipped with spiral liner for welding normal steel wire.

Before connecting the gun, make sure that its wire liner is according to

recommendations for the welding wire in question.

Set the snap connector carefully at its place so that the control connectors

will not get damaged. Tighten the snap connector carefully in order to

avoid voltage losses. Loose connection will heat the gun and the feeder

unit. Control tightness of connection daily.

equipment on welding place. Be prepared for hazards in special

welding jobs, eg. for the danger of fire or explosion when welding

container type work pieces. Note! Fire can break out from sparks even

several hours after the welding work has been nished!

Mains voltage

Never take welding machine inside a work piece (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 sucient ventilation during welding. Take special

safety precautions when welding metals which contain lead, cadmium,

zinc, mercury or beryllium.

2. CONNECTING THE GUN

The amount of use and working environment should be taken into

consideration when planning the frequency of maintenance of MIG

guns. Careful use and preventive maintenance will help to ensure

trouble-free operation and long lifetime for the gun.

Due to high temperatures and wear, the welding end of MIG gun

requires most maintenance but also condition of other parts should be

checked regularly.

Welding end

• Remove welding spatter and check condition of insulations, contact

tip and gas nozzle. Replace damaged and worn-out parts. Use only

original Kemppi spare parts.

• Check condition of insulations. Replace damaged insulations immediately.

• Check that in the discharge holes for shielding gas there is no spatter

or dirt.

• Use the gun in a proper way:

- Do not remove welding spatter by hammering the gun against the

work piece!

- Do not use sharp tools, because damaging of surfaces will increase

stickening of spatter!

- Do not bend neck body of gun or fasten the gun from neck body

against bench etc., for it may cause destruction of the neck!

- Do not use the gun as hammer!.

3. USE AND MAINTENANCE

OPERATING MANUAL

English

• Before driving the wire into gun check that the wire end is straight at

a length of approx. 200 mm and the tip blunt (le if necessary). A

sharp wire tip may damage wire liner and contact tip of gun.

• Watch out for wire sticking out from welding end of gun. Do not direct

the gun towards people or work piece, instead make sure that the wire

comes freely out in the air.

4. OPERATION DISTURBANCES

The most common operation disturbances are as follows:

Welding wire does not run smoothly or wire is sticking in the wire liner (arc length varies,

you can feel shaking in the handle):

• Wire liner is dirty or blocked-up. Clean with compressed air. Replace

wire liner if necessary.

• Wrong wire liner or contact tip. Make sure that wire liner and contact

tip are according to recommendations for the welding wire in question.

• Contact tip has heatened up too much.

• Contact face of contact tip is damaged due to spatter or sparking

caused by impurities. Replace contact tip.

• Gun cable has too sharp bends, straighten.

• Welding wire has a lot of dirt, rust or bends etc., which increases

friction and results in contact disturbances.

• Check operation of the wire feed unit. Check that drive roll size and

type are suitable for wire in question. Check that drive roll pressure is

not too low or too high.

Gas shielding is bad(weld pool "is boiling", arc is unstable):

• On inner face of gas nozzle or in contact tip and contact tip holder

there is too much welding spatter; clean.

• In discharge hole for shielding gas there is spatter or other dirt; clean.

• There are impurities in shielding gas (moisture, air).

• There are impurities in base material (rust, base coat, grease).

• Pressure gathered in long gas hoses will cause a great ow of

shielding gas at welding start, which may cause turbulence or mixing

of air into shielding gas. The reason may also be a faulty or a faulty

regulated relief valve which lets too much pressure into gas hoses.

• Flow of shielding gas is too small or too big (causes turbulence). Use

in short arc range a ow of 8 - 15 l/min, in hot arc range 10 - 20 l/min.

Gun cable

• Clean wire liner when replacing wire reel, or more often.

• Check daily that insulations of handle and gun cable are undamaged.

• Check that there are no sharp bends in gun cable.

• Distance of gun to work piece is too long. In short arc welding keep

the gas nozzle at a distance of 10 - 15 mm and in hot arc welding at a

distance of 15 - 30 mm to work piece.

• Angle of tilt of gun is too big.

• There is too much draught at welding place.

5. ORDERING NUMBERS

Wear Parts

Gun Length 3.0 m Length 4.5 m

MTP 350 6258353 6258354

MTP 500 6258503 6258504

Contact Tip Cucrzr 0.8mm 9876641

Contact Tip Cucrzr 1.0mm 9876643

Contact Tip Cucrzr 1.2mm 9876644

Contact Tip Cucrzr 1.4mm 9876645

Contact Tip Cucrzr 1.6mm 9876646

Liner 3m 0.6 - 0.8 White 4188571

Liner 4.5m 0.6 - 0.8 White 4188572

Liner 3m 0.9 - 1.2 Red 4188581

Liner 4.5m 0.9 - 1.2 Red 4188582

Liner 3m 1.4 - 1.6 Yellow 4188591

Liner 4.5m 1.4 - 1.6 Yellow 4188592

DL-Teon Liner 3m 0.8-1.6 4300840

DL-Teon Liner 4.5m 0.8-1.6 4300850

OPERATING MANUAL

English

Liners For Steel Wires

Liners For Aluminium Wires

Liners For Stainless Steel Wires

DL-Teon Liner 3m 0.8-1.0 4302680

DL-Teon Liner 4.5m 0.8-1.0 4302690

DL-Teon Liner 3m 1.2-1.6 4302700

DL-Teon Liner 4.5m 1.2-1.6 4302710

Connection to Mig unit: Euro adapter

Make sure that the gun in your use is designed for the max. welding

current needed.

The guns meets construction and safety requirements according to

norm IEC / EN 60974-7.

MTP 500 Wear Parts

Tip Adapter W004117

Ceramic Diuser W004118

Insulator W004121

Gas Nozzle W004122

Swan Neck W004127

Loading Capacity Co2 390 A / 35 % 500 A / 35 %

Loading Capacity Ar + Co2 370 A / 35 % 500 A / 35 %

Wire Diameters (Mm) 0.8 - 1.6 0.8 - 1.6

Type Of Cooling Air Air

6. TECHNICAL DATA

MTP 350 Wear Parts

Tip Adapter W004116

Ceramic Diuser W004119

Insulator W004120

Gas Nozzle W004123

Swan Neck W004126

CO2

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