ESAB Heliarc SR-9 Guida

Heliarc SR-9, SR-9V

Heliarc SR-17, SR-17V

Heliarc SR-26, SR-26V, SR-26-F

Instruction manual and Spare parts list

PLEASE READ AND UNDERSTAND ALL INSTRUCTION BEFORE USE. RETAIN

THIS MANUAL FOR FUTURE REFERENCE.

Complete User Manual at:

Manual Number: M003

Revision Date: 2023-07-10

Revision Number: B

Language: English

TABLE OF CONTENTS

M003 -2- © ESAB AB 2023

1 SAFETY ..................................................................................................................................... 3

1.1 Meaning of symbols .................................................................................................... 3

1.2 Safety precautions ..................................................................................................... 3

2 INTRODUCTION ......................................................................................................................... 6

2.1 Equipment.................................................................................................................... 6

3 TECHNICAL DATA ..................................................................................................................... 7

4 OPERATION ............................................................................................................................... 8

4.1 Connections................................................................................................................. 8

4.2 Choice of electrode ..................................................................................................... 8

4.3 Grinding........................................................................................................................ 9

4.4 Bending of the flexible torch ...................................................................................... 9

4.5 Valve torches ............................................................................................................... 9

5 MAINTENANCE.......................................................................................................................... 10

5.1 Daily.............................................................................................................................. 10

6 TROUBLESHOOTING ................................................................................................................ 11

7 ORDERING SPARE PARTS ....................................................................................................... 12

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

SPARE PARTS - SR-9, SR-9V .............................................................................................................. 16

SPARE PARTS - SR-17, SR-17V .......................................................................................................... 17

SPARE PARTS - SR-26, SR-26V, SR-26-F ........................................................................................... 18

1  SAFETY

M003 -3- © ESAB AB 2023

1 SAFETY

1.1 Meaning of symbols

As used throughout this manual: Means Attention! Be Alert!

DANGER!

Means immediate hazards which, if not avoided, will result in immediate, serious

personal injury or loss of life.

WARNING!

Means potential hazards which could result in personal injury or loss of life.

CAUTION!

Means hazards which could result in minor personal injury.

WARNING!

Before use, read and understand the instruction manual and

follow all labels, employer´s safety practices and Safety Data

Sheets (SDSs).

1.2 Safety precautions

Users of ESAB equipment have the ultimate responsibility for ensuring that anyone who works on or

near the equipment observes all the relevant safety precautions. Safety precautions must meet the

requirements that apply to this type of equipment. The following recommendations should be observed

in addition to the standard regulations that apply to the workplace.

All work must be carried out by trained personnel well-acquainted with the operation of the equipment.

Incorrect operation of the equipment may lead to hazardous situations which can result in injury to the

operator and damage to the equipment.

1. Anyone who uses the equipment must be familiar with:

• its operation

• location of emergency stops

• its function

• relevant safety precautions

• welding and cutting or other applicable operation of the equipment

2. The operator must ensure that:

• no unauthorised person is stationed within the working area of the equipment when it is started

• no-one is unprotected when the arc is struck or work is started with the equipment

3. The workplace must:

• be suitable for the purpose

• be free from drafts

4. Personal safety equipment:

• Always wear recommended personal safety equipment, such as safety glasses, flame-proof

clothing, safety gloves

• Do not wear loose-fitting items, such as scarves, bracelets, rings, etc., which could become

trapped or cause burns

5. General precautions:

• Make sure the return cable is connected securely

• Work on high voltage equipment may only be carried out by a qualified electrician

• Appropriate fire extinguishing equipment must be clearly marked and close at hand

• Lubrication and maintenance must not be carried out on the equipment during operation

1  SAFETY

M003 -4- © ESAB AB 2023

If equipped with ESAB cooler

Use ESAB approved coolant only. Non-approved coolant might damage the equipment and jeopardize

product safety. In case of such damage, all warranty undertakings from ESAB cease to apply.

For ordering information, see the "ACCESSORIES" chapter in the instruction manual.

WARNING!

Arc welding and cutting can be injurious to yourself and others. Take precautions when

welding and cutting.

ELECTRIC SHOCK - Can kill

• Install and ground the unit in accordance with instruction manual.

• Do not touch live electrical parts or electrodes with bare skin, wet gloves or wet

clothing.

• Insulate yourself from work and ground.

• Ensure your working position is safe

ELECTRIC AND MAGNETIC FIELDS - Can be dangerous to health

• Welders having pacemakers should consult their physician before welding. EMF

may interfere with some pacemakers.

• Exposure to EMF may have other health effects which are unknown.

• Welders should use the following procedures to minimize exposure to EMF:

○ Route the electrode and work cables together on the same side of your body.

Secure them with tape when possible. Do not place your body between the torch

and work cables. Never coil the torch or work cable around your body. Keep

welding power source and cables as far away from your body as possible.

○ Connect the work cable to the workpiece as close as possible to the area being

welded.

FUMES AND GASES - Can be dangerous to health

• Keep your head out of the fumes.

• 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

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

protective clothing.

• Protect bystanders with suitable screens or curtains.

NOISE - Excessive noise can damage hearing

Protect your ears. Use earmuffs or other hearing protection.

MOVING PARTS - Can cause injuries

• Keep all doors, panels and covers closed and securely in place. Have only qualified

people remove covers for maintenance and troubleshooting as necessary. Reinstall

panels or covers and close doors when service is finished and before starting

engine.

• Stop engine before installing or connecting unit.

• Keep hands, hair, loose clothing and tools away from moving parts.

FIRE HAZARD

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

nearby.

• Do not use on closed containers.

1  SAFETY

M003 -5- © ESAB AB 2023

HOT SURFACE - Parts can burn

• Do not touch parts bare handed.

• Allow cooling period before working on equipment.

• To handle hot parts, use proper tools and/or insulated welding gloves to prevent

burns.

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

PROTECT YOURSELF AND OTHERS!

CAUTION!

This product is solely intended for arc welding.

WARNING!

Do not use the power source for thawing frozen pipes.

CAUTION!

Class A equipment is not intended for use in residential locations

where the electrical power is provided by the public low-voltage

supply system. There may be potential difficulties in ensuring

electromagnetic compatibility of class A equipment in those

locations, due to conducted as well as radiated disturbances.

NOTE!

Dispose of electronic equipment at the recycling facility!

In observance of European Directive 2012/19/EC on Waste

Electrical and Electronic Equipment and its implementation in

accordance with national law, electrical and/or electronic

equipment that has reached the end of its life must be disposed of

at a recycling facility.

As the person responsible for the equipment, it is your

responsibility to obtain information on approved collection

stations.

For further information contact the nearest ESAB dealer.

ESAB has an assortment of welding accessories and personal protection equipment for

purchase. For ordering information contact your local ESAB dealer or visit us on our website.

2  INTRODUCTION

M003 -6- © ESAB AB 2023

2 INTRODUCTION

Heliarc TIG torches are intended for manual TIG welding. Certain models are available with flex

heads for unlimited movement in confined spaces.

2.1 Equipment

The TIG torch is supplied with:

• Wear parts (except electrodes):

○ Ø 1.6 mm (0.063 in.) Heliarc SR 9

○ Ø 2.4 mm (0.094 in.) Heliarc SR 17

○ Ø 2.4 mm (0.094 in.) Heliarc SR 26

• Safety instructions

• Instruction manual

3  TECHNICAL DATA

M003 -7- © ESAB AB 2023

3 TECHNICAL DATA

SR 9 SR 9V SR 17 SR 17V SR 26

26F

26V

AC [A] / %

DC [A] / %

80/60

110/60

100/60

140/60

200/60

0.5–1.6 mm

(0.02– 0.063 in.)

0.5–2.4 mm

(0.02– 0.094 in.)

0.5–4.0 mm

(0.02– 0.157 in.)

Ar/He

4 and 8 m (13 and 26 ft)

X – X – X –

12 kV

113 V

Operating temperature range -10 to +40 °C (+14 to +104 °F)

Transportation temperature range -20 to +55 °C (+4 to +131 °F)

Protection class

The torches protection class machine side (EN60529) IP3X

Duty cycle

The duty cycle refers to the time as a percentage of a ten-minute period that you can weld or cut at a

certain load without overloading. The duty cycle is valid for 40°C/104°F, or below.

Enclosure class

The IP code indicates the enclosure class, i.e. the degree of protection against penetration by solid

objects of 2.5 mm Ø and greater. Omitting second characteristic numeral.

4  OPERATION

M003 -8- © ESAB AB 2023

4 OPERATION

General safety regulations for handling the equipment can be found in the "SAFETY" chapter

of this manual. Read it through before you start using the equipment!

Read the operating instructions for the welding components, e.g. power source, and connect

accordingly.

4.1 Connections

Tighten the connections for the torch carefully to avoid overheating the connection, connection

interference, mechanical damage, or leakage of liquid or gas.

For liquid-cooled torches, connect liquid connections to the torch so that the red terminal is always

connected to the corresponding red terminal and the blue terminals are always connected to the

corresponding blue terminals.

4.2 Choice of electrode

By alloying the tungsten electrode with 1% to 2% lanthanum or cerium, the electron discharge is

increased, which gives better striking and restriking and therefore increased arc stability.

Alloyed tungsten electrodes have a longer service life, tolerate higher currents, and are less likely to

leave tungsten residue in the weld.

Pure tungsten electrode (AC) Green WP Used for welding light metal alloys.

Cerium alloyed tungsten

electrode (AC/DC)

Grey WC20 Used for welding light metals such

as aluminum and magnesium. The

electrode tip must be rounded when

welding.

Lanthanum alloyed tungsten

electrode (DC)

Gold WL15 Usually used for welding stainless

steel, steel, copper, titanium, etc.

Lanthanum alloyed tungsten

electrode (AC/DC)

Black WL10 Used for welding light metal alloys,

stainless steel, steel, copper,

titanium, etc.

Selection table

A / AC A / DC

WCeO2La2O3CeO2La2O3

1.0 mm

(0.039 in.)

6.4/8.0 mm

(0.252/0.315 in.) 10–60 – 15–100 70–80 20–100

1.6 mm

(0.063 in.)

6.4/8.0/9.8 mm

(0.252/0.315/0.386 in.) 50–100 60–90 70–160 80–140 80–160

2.4 mm

(0.094 in.)

9.8/11.2/12.7 mm

(0.386/0.441/0.500 in.) 100–160 90–130 110–200 150–210 120–230

3.2 mm

(0.126 in.)

11.2/12.7 mm

(0.441/0.500 in.) 130–180 140–190 150–205 220–320 200–305

4.0 mm

(0.157 in.)

12.7 mm

(0.500 in.) 180–230 200–250 180–270 330–420 250–420

4  OPERATION

M003 -9- © ESAB AB 2023

4.3 Grinding

NOTE!

Tungsten electrodes must be grounded lengthways. If they are incorrectly grounded, the arc

may be unstable. When the welding current is increased, the angle must also be increased.

When welding with alternating current (AC), the electrode end must be gently rounded. Grinding the

electrode is then unnecessary. Light grading of the edge is sufficient. The electrode forms itself if it is

carefully overloaded. If the tip becomes ball-shaped while welding using alternating current, this is a

sign that the current is too high for the diameter of the electrode being used.

Grind tungsten electrodes according to the following table:

Welding current Electrode angle

20 A 30°

20–100 A 30°–90°

100–200 A 90°–120°

over 200 A 120°

4.4 Bending of the flexible torch

The life of the flexible torch is limited. The maximum bending angle should be 45 degrees.

The life of the torch head can be prolonged by proper technique.

Always make sure that the torch head is supported by the thumb when you bend. This prevents

damage at sharp bending.

4.5 Valve torches

CAUTION!

Do not operate TIG torches with an integrated valve in the torch neck on welding systems

equipped with an ignition and stabilisation device.

5  MAINTENANCE

M003 - 10 - © ESAB AB 2023

5 MAINTENANCE

NOTE!

Regular maintenance is important for safe and reliable operation.

WARNING!

The mains supply must be disconnected during cleaning and maintenance.

CAUTION!

All warranty undertakings from the supplier cease to apply if the customer attempts any work

to rectify any faults in the product during the warranty period.

5.1 Daily

• Check that all cables and hoses are undamaged and that there are no kinks in them.

• Check that the gas nozzle is free from defects and suitable for the work in question.

• Check that the shielding gas flows evenly and without restriction.

• Check that the electrode is undamaged and that the electrode has been ground to the correct

angle.

• Check the coolant flow at the unit's return line (liquid-cooled versions only).

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