ESAB Heliarc SR-9 Guide

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
up
• 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
SR
26V
AC [A] / %
DC [A] / %
80/60
110/60
100/60
140/60
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
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).

6  TROUBLESHOOTING
M003 - 11 - © ESAB AB 2023
6 TROUBLESHOOTING
Read the operating instructions for the welding components, e.g., power source.
Perform these checks and inspections before sending for an authorised service technician.
Type of fault Possible cause Corrective action
The arc does not
strike
• Cable or contact is poor.
• Torch electrode is badly
oxidized.
• There are impurities in the
shielding gas (moisture, air).
• The electrode used is too
large or stubby at a low
current.
• Check the cable and contact.
• Regrind along the length of the electrode.
• Flush clean with gas.
• Replace with a smaller electrode.
No trigger function Control cable interrupted/faulty. Check/repair.
Gas shielding is
poor
• There are impurities in the
shielding gas (moisture, air).
• There are impurities in the
base material (rust,
lubricant).
• Insufficient or total lack of
shielding gas.
• It is too draughty at the
welding site.
• Welding spray has fastened
on the gas lens or the gas
hood.
• Flush clean with gas.
• Clean the base material.
• Check the contents of the gas
bottle/hoses and the pressure setting.
• Shield the welding area with protective
screens.
• Clean or replace.

7  ORDERING SPARE PARTS
M003 - 12 - © ESAB AB 2023
7 ORDERING SPARE PARTS
CAUTION!
Repair and electrical work should be performed by an authorised ESAB service technician.
Use only ESAB original spare and wear parts.
Heliarc SR-9,SR-9V,SR-17,SR-17V,SR-26,SR-26V, and SR-26-F torches are designed and
tested in accordance with the international and European standards IEC-/ EN 60974-7. On
completion of service or repair work, it is the responsibility of the person(s) performing the work to
ensure that the product still complies with the requirements of the above standards.
Spare parts and wear parts can be ordered through your nearest ESAB dealer, see esab.com. When
ordering, please state product type, serial number, designation and spare part number in accordance
with the spare parts list. This facilitates dispatch and ensures correct delivery.

APPENDIX
M003 - 13 - © ESAB AB 2023
APPENDIX

APPENDIX
M003 - 14 - © ESAB AB 2023
ORDERING NUMBERS
Ordering
number
Denomination Torch head TSB 3550
Ridgid Valve Flexible 4 m /
12.5ft
8m/
25ft
0700 026 600 ESAB Heliarc SR-9 12.5ft X X
0700 026 601 ESAB Heliarc SR-9 25ft X X
0700 026 604 ESAB Heliarc SR-9V 12.5ft X X
0700 026 605 ESAB Heliarc SR-9V 25ft X X
0700 026 610 ESAB Heliarc SR-17 12.5ft X X
0700 026 611 ESAB Heliarc SR-17 25ft X X
0700 026 614 ESAB Heliarc SR-17V 12.5ft X X
0700 026 615 ESAB Heliarc SR-17V 25ft X X
0700 026 620 ESAB Heliarc SR-26 12.5ft X X
0700 026 621 ESAB Heliarc SR-26 25ft X X
0700 026 622 ESAB Heliarc SR-26-F 12.5ft X X
0700 026 623 ESAB Heliarc SR-26-F 25ft X X
0700 026 624 ESAB Heliarc SR-26V 12.5ft X X
0700 026 625 ESAB Heliarc SR-26V 25ft X X
0460 697 * Instruction manual

APPENDIX
M003 - 15 - © ESAB AB 2023
The three last digits in the document number of the manual show the version of the manual. Therefore
they are replaced with * here. Make sure to use a manual with a serial number or software version that
corresponds with the product, see the front page of the manual.
Technical documentation is available on the Internet at: www.esab.com

APPENDIX
M003 - 16 - © ESAB AB 2023
SPARE PARTS - SR-9, SR-9V
Item Qty Ordering no. Denomination
100 1 0700 300 569 Torch head rigid, SR-9
102 1 0700 300 570 Torch head valved, SR-9V
103 1 0700 300 581 Gas valve
104 1 0700 025 631 Handle, H100
105 1 0700 025 623 TIG connector 3550
106 1 0700 025 993 Gas hose
107 4 0700 025 975 Hose clamp with ring

APPENDIX
M003 - 17 - © ESAB AB 2023
SPARE PARTS - SR-17, SR-17V
Item Qty Ordering no. Denomination
200 1 0700 300 590 Torch head rigid, SR-17
202 1 0700 300 571 Torch head valved, SR-17V
203 1 0700 300 581 Gas valve
204 1 0700 025 631 Handle, H100
205 1 0700 025 623 TIG connector 3550
206 1 0700 025 993 Gas hose
207 4 0700 025 975 Hose clamp with ring

APPENDIX
M003 - 18 - © ESAB AB 2023
SPARE PARTS - SR-26, SR-26V, SR-26-F
Item Qty Ordering no. Denomination
300 1 0700 025 606 Torch head rigid, SR-26
301 1 0700 025 607 Torch head flexible, SR-26-F
302 1 0700 025 594 Torch head valved, SR-26V
303 1 0700 025 599 Gas valve
304 1 0700 025 632 Handle, H200
305 1 0700 025 623 TIG connector 3550
306 1 0700 025 993 Gas hose
307 4 0700 025 975 Hose clamp with ring

APPENDIX
M003 - 19 - © ESAB AB 2023

ESAB AB ESAB Corporation ESAB Holdings Ltd
Lindholmsallén 9 2800 Airport Road 322 High Holborn
Box 8004 Denton, TX 76207 WC1V 7PB
402 77 Gothenburg USA London, Great Britain
Sweden Phone [phone] Phone [phone]
Phone [phone]
For contact information visit http://esab.com
manuals.esab.com