Kemppi 25 User manual

PMT 25, 27, 32, 35, 42

30W, 42W, 52W

Operating manual • English

Käyttöohje • Suomi

Bruksanvisning • Svenska

Bruksanvisning • Norsk

Brugsanvisning • Dansk

Gebrauchsanweisung • Deutsch

Gebruiksaanwijzing • Nederlands

Manuel d’utilisation • Français

Инструкции по эксплуатации • По-русски

OPERATING MANUAL

English

PMT © Kemppi Oy / 1130

CONTENTS

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

1.1 General..........................................................................................................................3

1.2 Product Introduction ............................................................................................4

1.3 Operation Safety......................................................................................................4

2. CONNECTING THE GUN........................................................................5

3. USING THE PMT GUN WITH UNITS OTHER

THAN PROMIG AND FEED.................................................................6

3.1 Changing the connection ..................................................................................6

4. MOUNTING THE GUN REGULATOR RMT 10.................8

5. USING THE GUN REGULATOR RMT 10................................9

5.1 Regulating the wire feed speed and welding power .........................9

5.2 Selecting the selecto channel..........................................................................9

6. OPERATION OF THE THERMAL SHIELD..........................11

7. TWISTING THE NECK ...........................................................................11

8. USE AND MAINTENANCE................................................................12

9. OPERATION DISTURBANCES......................................................13

10. ORDERING NUMBERS.........................................................................14

11. TECHNICAL DATA.....................................................................................15

PMT © Kemppi Oy / 1130

1. PREFACE

1.1 GENERAL

Congratulations on having purchased this product. 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.

Disclaimer

While every eort has been made to ensure that the information contained

in this guide is accurate and complete, no liability can be accepted for any

errors or omissions. Kemppi reserves the right to change the specication of

the product described at any time without prior notice. Do not copy, record,

reproduce or transmit the contents of this guide without prior permission

from Kemppi.

PMT © Kemppi Oy / 1130

1.2 PRODUCT INTRODUCTION

Kemppi PMT MIG/MAG guns for manual welding are designed for demanding

professional use. They are suitable to be used in all MIG units equipped with

a 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

The welding arc hurts unprotected eyes. Also be careful with reecting arc

ashes. The welding arc and spatter burn unprotected skin. Use safety gloves

and protective clothing.

Danger of re or explosion

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

materials from the welding location. Always reserve sucient re-ghting

equipment at the welding location. Be prepared for hazards in special

welding jobs, e.g. the danger of re or explosion when welding container

type work pieces.

NOTE! Fire can break out from sparks even several hours after welding has been

nished!

Mains voltage

Never take the welding machine inside a work piece (e.g. container or truck).

Do not place the welding machine on a wet surface. Always check cables

before operating the machine. Change damaged cables without delay.

Damaged cables may cause injury or start a re. Connection cable must not

be compressed or 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 damaged cables. Do not put

the MIG gun or welding cables on the 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

Make sure that there is sucient ventilation during welding. Take special

safety precautions when welding metals which contain lead, cadmium, zinc,

mercury or beryllium.

PMT © Kemppi Oy / 1130

2. CONNECTING THE GUN

In its delivery state, internal connections of PMT guns are made so that they

are suitable to be used only with Promig and Feed wire feeders.

Do not use the PMT gun in any other wire feeder than Promig and Feed

before you have changed internal connections of gun according to the

instructions in the following paragraph.

Do not use the PMT gun in units other than Promig and Feed before you are

certain that the RMT 10 gun control unit is not installed on the gun.

Set the snap connector carefully in its place so that control connectors will

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

voltage loss. A loose connection will heat up the gun and the feeder unit.

Inspect the tightness of the connection daily.

Connect liquid hoses of the gun and interconnecting cable according to

operation instructions of the wire feeder. Fix liquid hoses in such a way that

ones having a red code are always connected to corresponding red counter

connectors and the blue ones respectively to blue counter connectors.

If the connections are crossed, cooling liquid will circulate in the wrong

direction in the gun. This might cause the gun handle and neck body to heat

up considerably more than usual.

When connecting the liquid and gas hoses, make sure there is no dirt, metal

powder or other waste in the connectors.

Waste may block the liquid circulation, damaging the gun and stopping or

breaking the pump.

Before you start welding, make sure that the wire liner is according to

recommendations (see colour code in the consumable parts sheet) and that

the contact tip corresponds to the wire diameter used.

Look out for wire coming out of the welding end of gun. Do not direct the

gun towards people or the work piece but make sure that the wire exits the

gun without obstruction.

PMT © Kemppi Oy / 1130

3. USING THE PMT GUN WITH UNITS OTHER

THAN PROMIG AND FEED

In the PMT guns, in addition to start operations, gun control and thermal

protection operations are also transmitted along the control lines of the snap

connector (PMT 30W, PMT 42W, PMT 52W). Hence the delivery state of the

guns is such that without any alternations to the internal connections, the

guns are suitable to be used only with Promig and Feed wire feed units.

The use of PMT guns in other MIG units without any alternations to the

connections may cause following erratic behaviour:

• Start is always switched on and wire is being fed continuously,

eventhough the trigger is not pulled.

• Start does not operate even if the trigger is pulled. If the RMT 10

gun control unit is installed, the use of the PMT gun in other units

than Promig or Feed may cause a malfunction as described above,

eventhough you have changed the internal couplings of the gun.

If the RMT 10 gun control unit is coupled at its place, using the PMT gun in

units other than Promig or Feed may cause malfunctions as described above,

eventhough you have changed the internal coupling of the gun.

3.1 CHANGING THE CONNECTION

Under the plastic cover of the snap connector head of the PMT gun there

is an electronics card, on which there is a shorting jumper for changing the

connection.

• Release the fastening screws (4 pcs.) of the plastic cover protector of the

snap connector head.

• Lift the cover approximately 50 mm. Do not bend the cooling liquid

hoses.

• Take the electronics card out of the plastic protector.

• Gently pull the insulating hose covering the card to the direction of the

snap connector so that the shorting jumper becomes accessible. Handle

the wires of card and their connections carefully.

• Ιn the delivery state, the shorting jumper is mounted to the connectors,

next to which, at the base of the card, there is a printed symbol text

“PRO”. Disconnect the shorting jumper and connect it to the another

connector pair with the symbol text “FU”.

• Pull the insulating hose back onto the card.

• Mount the card back in its original place. Make sure that clamper rings of

wires remain in their original position. Make sure the plastic cover does

not press against the card when it is reattached to the gun.

PMT © Kemppi Oy / 1130

• Press the cover of the plastic protection back in place. Make sure that

the cooling liquid hoses and their bending protections are placed inside

plastic protection without any sharp bends and make that they retain

the original shape of the hose.

• Tighten the screws of the cover.

• Mark the sticker on the cover to signify that the connection has been

changed into the position “FU”.

• The gun is now ready for use in devices other than Promig or Feed, e.g. in

FU wire feeders of Multisystems.

You can use the PMT gun with the FU connection also with the Promig and

Feed but control and thermal protection operations will not be available.

PMT © Kemppi Oy / 1130

4. MOUNTING THE GUN REGULATOR RMT 10

In the handle of the PMT gun there is a place for the gun regulator RMT 10

(6185475), which is available as an accessory. This regulator enables you to

ragulate the welding power of synergic MIG or pulsed MIG welding with the

Promig and Feed, or select preprogrammed welding parameters according to

your wishes.

In the delivery state there is a cover plate in place of the gun regulator.

RMT 10

• Release the fastening screw of the cover plate.

• Release the cover plate from the handle by pushing it out on its guides.

Under the rear end of the cover plate you will now see a connector to

which the gun regulator connects. Make sure the regulator RMT 10, its

connectors and the connectors of the gun are free of metal powder, dirt,

etc. Clean carefully if necessary.

• Push the gun regulator RMT 10 onto the guides, but not completely

to the end. Make sure that the connector on the handle side is in the

correct position and that the connectors are correctly connected to each

other. Push the regulator carefully to its place.

• Tighten the screw.

PMT © Kemppi Oy / 1130

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