ESAB MEK 4C Instruction manual

MEK 4C

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Instruction manual
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Manuel d’instructions
Gebruiksaanwijzing
Instrucciones de uso
Istruzioni per l’uso
Manual de instruções

ПдзгЯет чсЮуещт

Valid for serial no. 918--xxx--xxxx0456 679 101 011127

SVENSKA 3..............................................

DANSK 8................................................

NORSK 13................................................

SUOMI 18................................................

ENGLISH 23..............................................

DEUTSCH 28.............................................

FRANÇAIS 34.............................................

NEDERLANDS 40.........................................

ESPAÑOL 46..............................................

ITALIANO 52..............................................

PORTUGUÊS 58..........................................

ЕЛЛЗНЙКБ 64.............................................

Rätt till ändring av specifikationer utan avisering förbehålles.
Ret til ændring af specifikationer uden varsel forbeholdes.
Rett til å endre spesifikasjoner uten varsel forbeholdes.
Oikeudet muutoksiin pidätetään.
Rights reserved to alter specifications without notice.
Änderungen vorbehalten.
Sous réserve de modifications sans avis préalable.
Recht op wijzigingen zonder voorafgaande mededeling voorbehouden.
Reservado el derecho de cambiar las especificaciones sin previo aviso.
Ci riserviamo il diritto di variare le specifiche senza preavviso.
Reservamo--nos o direito de alterar as especificações sem aviso prévio.

ДйбфзсеЯфбй фп дйкбЯщмб фспрпрпЯзузт рспдйбгсбцюн ЧщсЯт рспейдпрпЯзуз.

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ENGLISH

1 DIRECTIVE 24........................................................

2SAFETY 24...........................................................

3 INTRODUCTION 24...................................................

4 TECHNICAL SPECIFICA TION 25.......................................

5 INSTALLATION 25....................................................

5.1 Connection 25...............................................................

6 OPERATION 26.......................................................

7 MAINTENANCE 27....................................................

7.1 Inspection and cleaning 27....................................................

8 ORDERING OF SPARE PARTS 27......................................

DIAGRAM 70............................................................

SPARE PARTS LIST 71...................................................

ACCESSORIES 78.......................................................

TOCe

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1 DIRECTIVE

ESAB Welding Equipment AB, S--695 81 Laxå, Sweden, declares that Wire feed unit MEK 4C from
serial number 623 onwards, conforms to standard EN 60974--1, in accordance with the requirements
of directive (73/23/EEC) and appendix (93/68/EEC) and standard EN 50199 in accordance with the
requirements of directive (89/336/EEC) and appendix (93/68/EEC).

DECLARATION OF CONFORMITY

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Laxå 1997--01--15

Paul Karlsson
Managing Director
ESAB Welding Equipment AB
695 81 LAXÅ
SWEDEN Tel: + 46 584 81000 Fax: + 46 584 12336

2SAFETY

WARNING

ARC WELDING AND CUTTING CAN BE INJURIOUS TO YOURSELF AND OTHERS. TAKE PRECAU­TIONS WHEN WELDING. ASK FOR YOUR EMPLOYER’S SAFETY PRACTICES WHICH SHOULD BE
BASED ON MANUFACTURERS’ HAZARD DATA.

ELECTRIC SHOCK -- Can kill

S Install and earth the welding unit in accordance with applicable standards.
S Do not touch live electrical parts or electrodes with bare skin, wet gloves or wet clothing.
S Insulate yourself from earth and the workpiece.
S Ensure your working stance is safe.

FUMES AND GASES -- Can be dangerous to health

S Keep your head out of the fumes.
S Use ventilation, extraction at the arc, or both, to take fumes and gases away from your breathing zone

and the general area.

ARC RAYS -- Can injure eyes and burn skin.

S Protect your eyes and body. Use the correct welding screen and filter lens and wear protective

clothing.

S Protect bystanders with suitable screens or curtains.

FIRE HAZARD

S Sparks (spatter) can cause fire. Make sure therefore that there are no inflammable materials nearby.

NOISE -- Excessive noise can damage hearing

S Protect your ears. Use earmuffs or other hearing protection.
S Warn bystanders of the risk.

MALFUNCTION -- Call for expert assistance in the event of malfunction.

READ AND UNDERSTAND THE INSTRUCTION MANUAL BEFORE INSTALLING OR OPERATING.

PROTECT YOURSELF AND OTHERS!

3 INTRODUCTION

The MEK 4C is an encapsulated wire feed unit with four roller feed. The unit pro­vides space for a 300 mm diameter wire reel and has a built--in positioner.

For a wire feed unit to be complete it must be equipped either with a turnable,
counterbalance device or a carriage. A turnable or counterbalance device allow the
wire feed unit to be mounted on a pivot on the power source. A carriage allows the
wire feed unit to be moved easily over the floor or work table.

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A wire feed unit and turnable or carriage can also be fitted with a support device and
suspended over the work place.

Details of ESAB’s accessories for the wire feed units can be found on page

78.

4 TECHNICAL SPECIFICATION

MEK 4C

Dimensions lxwxh 630x245x490 mm
Weight 15 kg
Wire feed speed 1,9--25 m/min
Voltag e 42 V 50--60 Hz
Power consumption 300 V A
Torch connection EURO

5 INSTALLATION

The in stallatio n must be executed by a p rofessional.

WARNING!

This product is intended for industrial use. In a domestic environment this product may cause radio
interference. It is the user’s responsibility to take adequate precautions.

5.1 Connection

1 Nipple, cooling water (only certain models) 5 Connector, remote control (activated auto-

matically on connection of remote)

2 Nipple, gas connection 6 Nipple, cooling water (only certain models)
3 Connector, control cable 7 Adapter, welding torch
4 Adapter, welding current 8 Connector setting control

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5

6

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6 OPERATION

General safety regulations for the handling of the equipment can be found on
page 24. Read through before you start using the equipment!

WARNING!

Rotating parts can cause injury, take great care.

WARNING!

To prevent the reel sliding off the hub: Lock the reel in place by turning
the red knob as shown on the warning label attached next to the hub.

Setting the wire feed pressure

Start by making sure that the wire moves smoothly through the wire guide. Then
set the pressure of the wire feeder’s pressure rollers. It is important that the
pressure is not too great.

Fig 1 Fig 2

To check that the feed pressure is set correctly, you can feed out the wire against
an isolated object, e.g. a piece of wood.

When you hold the pistol approx. 5 mm from the piece of wood (fig. 1) the feed
rollers should slip.

If you hold the pistol approx. 50 mm from the piece of wood, the wire should be
feed out and bend (fig. 2). ja sen on taivuttava (kuva 2).

WARNING!

There is a risk of tipping if the wire feed cabinet is fitted with a counterbalance arm. Secure the
equipment, especially if used on an uneven or sloping surface.

Limit the angle of rotation of the wire feed cabinet using the straps supplied.

When moving the equipment, do NOT pull on the torch.

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7 MAINTENANCE

Note:

All warranty undertakings given by the supplier cease to apply if the customer
attempts to rectify any faults on the machine during the warranty period.

7.1 Inspection and cleaning

Regularly maintenance is important for reliable and safe operations.

S Cleaning and replacement of the wire feed mechanism’s wear parts should take

place periodically to ensure trouble free wire feed.
Note that an excessive pressure setting can result in abnormal wear on the
pressure roller, feed roller and wire liner

S Torch

Regulary blow the wire liner and clean the gas shroud.

The brake hub

The hub is adjusted when delivered, if
readjustment is required, follow the instructions
below. Adjust the brake hub so that wire is slightly
slack when wire feed stops.

S Adjusting the braking torque:

S Turn the red handle to the locked position.
S Insert a screwdriver into the springs in the hub.

Turn the springs clockwise to r educe the braking torque
Turn the springs anticlockwise to increase the braking torque. NB: Turn both

springs through the same amount.

8 ORDERING OF SPARE PARTS

MEK 4C is designed and tested in accordance with the EN 60974--1 (IEC 50199)

international standard.
It is the obligation of the service unit which has carried out the service or re­pair work to make sure that the product still conforms to the said standard.

Spare parts are ordered through your nearest ESAB representative, see back cover.
When ordering spare parts, please state machine type and number as well as desig­nation and spare part number as shown in the spare parts list.
This will simplify dispatch and ensure you get the right part.

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