GB
Caddy
Arc 251i
Instruction manual
Valid for serial no. 810-xxx-xxxx0460 324 001 GB 20120731
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1 SAFETY 4...........................................................
2 INTRODUCTION 6...................................................
2.1 Equipment 6................................................................
2.2 Control panel A32, A34 6.....................................................
3 TECHNICAL DATA 7.................................................
4 INSTALLATION 8....................................................
4.1 Location 8..................................................................
4.2 Mains supply 8..............................................................
4.3 Mains power supply 8........................................................
4.3.1 Recommended fuse sizes and minimum cable area 8.......................
5 OPERATION 9.......................................................
5.1 Connections and control devices 9............................................
5.2 Connection of welding and return cable 9.......................................
5.3 TIG welding 10...............................................................
5.4 Overheating protection 10.....................................................
6 MAINTENANCE 10....................................................
6.1 Power source 10.............................................................
6.2 Welding torch 10.............................................................
7 FAULT-TRACING 11..................................................
8 ORDERING SPARE PARTS 11.........................................
DIAGRAM 12............................................................
ORDER NUMBER 14.....................................................
ACCESSORIES 15.......................................................
Rights reserved to alter specifications without notice.
TOCe
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GB
1 SAFETY
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 ob
served 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 equip
ment. Incorrect operation of the equipment may lead to hazardous situations which can result in in
jury to the operator and damage to the equipment.
1. Anyone who uses the equipment must be familiar with:
S its operation
S location of emergency stops
S its function
S relevant safety precautions
S welding and cutting
2. The operator must ensure that:
S no unauthorised person is stationed within the working area of the equipment when it is
started up.
S no-one is unprotected when the arc is struck
3. The workplace must:
S be suitable for the purpose
S be free from drafts
4. Personal safety equipment
S Always wear recommended personal safety equipment, such as safety glasses, flame-proof
clothing, safety gloves.
S Do not wear loose-fitting items, such as scarves, bracelets, rings, etc., which could become
trapped or cause burns.
5. General precautions
S Make sure the return cable is connected securely.
S Work on high voltage equipment may only be carried out by a qualified electrician.
S Appropriate fire extinquishing equipment must be clearly marked and close at hand.
S Lubrication and maintenance must not be carried out on the equipment during operation.
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© ESAB AB 2007
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WARNING
Arc welding and cutting can be injurious to yourself and others. Take precautions when welding and
cutting. Ask for your employer's safety practices which should be based on manufacturers' hazard
data.
ELECTRIC SHOCK - Can kill
S Install and earth the 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!
WARNING
Do not use the power source for thawing frozen pipes.
CAUTION
Read and understand the instruction manual before
installing or operating.
CAUTION
This product is solely intended for arc welding.
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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.
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© ESAB AB 2007
GB
Dispose of electronic equipment at the recycling facility!
In observance of European Directive 2002/96/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 can provide you with all necessary welding protection and accessories.
2 INTRODUCTION
Arc 25li is a welding current power source intended for use with coated electrodes
(MMA welding) and TIG welding.
ESAB's accessories for the product can be found on page 95.
2.1 Equipment
The power source is supplied with:
S Instruction manual for the welding power source
S Instruction manual for the control panel
S 3 m return cable
S 3 m welding cable
Instruction manuals in other languages can be downloaded from the website,
www.esab.com.
2.2 Control panel A32, A34
Welding process parameters are controlled via the control panel.
See the separate instruction manual for a detailed description of the control panels.
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© ESAB AB 2007
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