Before attempting to operate the machine, it is essential that you read this
manual thoroughly and carefully follow all instructions given. In doing so you
will ensure the safety of yourself and that of others around you, and you can
also look forward to the welder giving you long and satisfactory service.
GUARANTEE
This CLARKE product is guaranteed against faulty manufacture for a period of
12 months from the date of purchase. Please keep your receipt as proof of
purchase.
This guarantee is invalid if the product is found to have been abused or
tampered with in any way, or not used for the purpose for which it was
intended.
Faulty goods should be returned to their place of purchase, no product can
be returned to us without prior permission.
This guarantee does not effect your statutory rights.
ENVIRONMENTAL RECYCLING POLICY
Through purchase of this product, the customer is taking on the
obligation to deal with the WEEE in accordance with the WEEE
regulations in relation to the treatment, recycling & recovery and
environmentally sound disposal of the WEEE.
In effect, this means that this product must not be disposed of with general
household waste. It must be disposed of according to the laws governing
Waste Electrical and Electronic Equipment (WEEE) at a recognised disposal
facility.
WARNING: AS WITH ALL MACHINERY, THERE ARE CERTAIN HAZARDS
INVOLVED WITH THEIR OPERATION AND USE. EXERCISING RESPECT AND
CAUTION WILL CONSIDERABLY LESSEN THE RISK OF PERSONAL INJURY.
HOWEVER, IF NORMAL SAFETY PRECAUTIONS ARE OVERLOOKED, OR
IGNORED, PERSONAL INJURY TO THE OPERATOR MAY RESULT.
ELECTRIC SHOCK
• Remove the plug from the socket and wait 5 minutes to allow the
capacitors to discharge before carrying out servicing or maintenance.
• Do not touch live electrical parts.
• Never use electrode holders or cables which are damaged.
• Keep working environment, equipment, cables and clothing free from
grease, oil, moisture and dirt.
• Ensure welding machine has been correctly earthed.
• The operator must be insulated from the floor and work bench using a dry
insulation mat.
• Always ensure a second person is present in case of accident.
• Never change electrodes with bare hands or damp gloves.
• Keep welding cables away from power cables.
• Regularly inspect the condition of the cables for signs of damage.
• Remove plug from the mains socket when not in use, do not leave the
machine unattended.
• Ensure earth clamp is secured to bare metal adjacent to weld seam, and
when not in use is insulated for safety. - Keep all equipment well
maintained.
• The operator shall prevent gas cylinders in the vicinity of the work piece
from becoming part of the welding circuit.
FUMES & GASES
• The welding process generates hazardous fumes as a by-product.
Inhalation of these fumes is hazardous to health.
• Keep your head away from the weld to avoid breathing the fumes.
• If welding in confined spaces ensure adequate ventilation and use a fume
extractor.
• By-products of welding can react to create a toxic/explosive environment.
Welding can cause fire and explosions. Precautions should be taken to
prevent these hazards.
• Before starting work ensure the area is clear of flammable materials.
• Move any combustible materials to a safe distance, especially substances
likely to generate a dangerous vapour.
• he welding arc can cause serious burns. Avoid contact with skin.
• Sparks and molten metal are ejected during welding. Take precautions to
prevent fires.
• Sparks and molten metal can pass through gaps. Be aware that fire can
start out of sight.
• Do not weld pressurised containers. or containers containing flammable
vapours e.g. fuel tanks.
• Always have appropriate fire fighting equipment to hand suitable for use in
electrical environments.
• Avoid carrying any fuels with you e.g. cigarette lighters or matches.
PERSONAL PROTECTION
• The body should be protected by suitable clothing.
• The use of neck protection may be necessary against reflected radiation.
• Arc machines generate a magnetic field which is detrimental to
pacemakers. Consult your doctor before going near active welding
equipment/operations.
• The UV and IR radiation generated by welding is highly damaging to the
eyes, causing burns. This can also affect the skin.
• Always use a suitable welding shield equipped with appropriate protective
filters.
• Where there are pedestrians and traffic ensure a protective screen is used
to avoid accidental arc glare.
• Do not weld in the vicinity of children or animals and ensure no-one is
looking before striking an arc.
• Wear hearing protection if required.
• Allow the weld time to cool. Hot metal should never be handled without
gloves.
• Take care when adjusting or maintaining the torch, that it has had time to
cool sufficiently and the welder is disconnected from the mains supply.
• First aid facilities and a qualified first aid person should be available unless
medical facilities are close by, for immediate treatment of flash burns of
the eyes and skin burns.
• A hard hat should be worn when others are working overhead.
• Flammable hair sprays/gels should not be used by persons intending to
weld or cut.
PROTECTIVE CLOTHING
• Wear gauntlet gloves designed for use in welding.
• Wear an apron, and protective shoes.
• Wear cuffless trousers to avoid entry of sparks and slag.
• Avoid oily greasy clothing.
• Protective head and shoulder coverings should be worn when welding
overhead.
• wear a helmet or safety goggles or glasses with side shields underneath,
appropriate filter lenses or plates (protected by clear glass). This is a MUST
for welding (and chipping) to protect the eyes from radiant energy and
spatter. Replace cover glass when broken, pitted, or spattered.
NOTE: ALL protective wear inc. masks & head shields MUST comply with PPE
Directive 89/686/EEC
ADDITIONAL SAFETY PRECAUTIONS FOR ARC WELDERS
• NEVER attempt to remove any of the panels unless the machine is
disconnected from the power supply.
• NEVER use the machine with any of the panels removed.
• NEVER attempt any electrical or mechanical repair unless your are a
qualified technician. If you have a problem with the machine contact your
local CLARKE dealer.
• NEVER use or store in a wet/damp environment. DO NOT EXPOSE TO RAIN.
• NEVER allow children or animals in the vicinity of a welding operation.
• ALWAYS remove all flammable materials from the welding area.
• ALWAYS ensure that there is full free air circulating around the outer casing
of the machine, and that the louvres are unobstructed.
• Welding arc can seriously damage your eyes. Both the operator and any
spectators should always use a proper welding face shield or helmet, with
suitable filter lenses. Proper gloves and working clothes should be worn at
all times.
WARNING: READ THESE ELECTRICAL SAFETY INSTRUCTIONS
THOROUGHLY BEFORE CONNECTING THE PRODUCT TO THE SUPPLY.
WARNING: NEVER FIT A STANDARD 230V, 13AMP (BS1363) PLUG TO
THESE MACHINES
230V SUPPLY
Connect the mains lead to a suitably fused 230 Volt (50Hz) electrical supply.
The fuse rating should correspond to that shown on the data plate on the rear
panel of the machine. For a full explanation of the rating plate, see page 15.
WARNING! The wires in the power cable of this product are
coloured in accordance with the following code:
Blue = Neutral Brown = Live Yellow and Green = Earth
If the colours of the wires in the power cable of this product do not correspond
with the markings on the terminals of your plug, proceed as follows.
• The wire which is coloured Blue must be connected to the terminal
which is marked N or coloured Black.
• The wire which is coloured Brown must be connected to the terminal
which is marked L or coloured Red.
• The wire which is coloured Yellow and Green must be connected to
the terminal which is marked E or or coloured Green.
400V SUPPLY
For connecting to a 400V (Single Phase) supply, the colour codes of the wires
are as follows: Green and Yellow - Earth Blue - Live (L1) Brown - Live (L2)
Any damage or deficiency should be reported to your CLARKE dealer
immediately. Some of the components are stored within the machine side
compartment and include the following:
• 1 x 200 Amp AC Arc Welder
• 1 x Combination Wire Brush & Hammer
• 1 x Headshield
• 1 x Instruction Manual
l
NO DESCRIPTIONNO DESCRIPTION
1Welding Headshield6Earth Clamp
2On/Off Switch & voltage selector7Welding Rod Holder
3. Working from the inside of the
shield, insert the clear glass panel
into the recess in the shield,
followed by the dark glass panel.
• The clear glass must be inserted
first.
4. Insert the two plastic screws to
clamp the glass panels from the
inside of the mask.
When replacing the glass panels,
only use parts supplied by Clarke International. The dark panel is a certified,
specific optical class, and should not be exchanged for any other type.
The clear glass panel should be replaced when it becomes badly pitted.
PREPARATION FOR USE
FITTING THE WELDING ROD
1. Select the appropriate welding rod, and insert it into the welding rod
holder.
• It should be approximately the same thickness as the metal being
welded.
PREPARING THE WORKPIECE
The area being welded should be perfectly clean. Any coating, plating or
corrosion must be removed, otherwise a good weld will be impossible to
achieve.
If the machine stops at any time and
the amber light on the front panel
illuminates, the thermal cutout has
activated.
Wait until the transformer has cooled
sufficiently (the amber light goes out)
before restarting work.
USING THE WELDER
ATTACHING THE EARTH CLAMP
Attach the earth clamp firmly to the workpiece as close as possible to the
point of weld.
Ensure that the earth clamp is attached to clean, solid metal. If necessary
thoroughly clean with a wire brush or similar to guarantee a good connection.
SETTING THE WELDING CURRENT
1. Select the welding current by
turning the adjustment dial and
observing the setting on the scale,
on top of the machine.
The chart below is an indicator of the
thickness of material/ welding rod
thickness and the corresponding
welding current. This is intended as a
guide only.
SIZE OF WELDING ROD / THICKNESS OF METALAMPERAGE SETTING
1/16”14 swg2.0 mm60-70
12 swg2.5 mm75-95
1/8”10 swg3.25 mm100-140
4 mm140-180
NOTE: With practice you will get a feel for the best current settings for
IMPORTANT: BEFORE YOU STRIKE AN ARC, BRING THE FACE SHIELD UP TO
PROTECT YOUR EYES.
1. Switch ON the machine.
2. Line up the electrode exactly over
the spot where you want to strike.
3. Position your shield in front of your
face and tap down firmly with the
electrode. Once you tap down
and contact is made, you must
instantly raise the electrode to the
required arc gap.
• The arc gap should be roughly
the same as the diameter of the electrode.
• If you withdraw the electrode too far once the arc is struck, you will
lose the arc and have to try again.
NOTE: One thing that usually happens when you are striking an arc is that the
electrode sticks to the work. It should come unstuck with a sharp tug. If
it will not free easily, then turn off the welder immediately as it will
quickly overheat, then give the join a tap from the chipping hammer.
As you get more experienced, this will happen less.
4. Once the arc is struck, move the electrode along its intended path,
keeping the tip in the molten pool at all times.
• You must also get used to feeding down the electrode steadily as it
burns away.
• An even crackling noise should be heard, which is an indication of a
good weld.
5. Inspect the job carefully, the area of weld should be a complete fusion of
the electrode and parent metal(s).
• Any slag which forms on the surface should be chipped away with
the hammer/brush supplied.
• If the resultant weld looks messy and irregular, this is an indication of
porosity or slag contamination, and you have almost certainly failed
to achieve the correct combination of working speed and current.
This is a common problem, so do not worry as practice will quickly
cure this.
The arc welding technique is an acquired skill and requires considerable
practice before perfect results are obtained. The diagrams below will help to
explain the pitfalls in your technique and how to overcome them.
ARC TOO SHORT
This causes irregular masses of weld to be deposited, with
slag contamination on an uneven surface.
ARC TOO LONG
This causes poor penetration resulting in a weak weld with
excessive spatter and porosity. Surface of the weld is rough
and the arc makes a hissing sound.
ELECTRODE MOVED TOO SLOWLY
This causes a very wide and heavy deposit which overlaps
at the sides. It is wasteful both in terms of time and electrode
use.
ELECTRODE MOVED TOO QUICKLY
This causes poor penetration with a ‘stringy’ and incomplete
weld deposit. Slag is very hard to remove.
CURRENT TOO LOW
This causes poor penetration and causes the electrode to
easily stick to the workpiece. Also results in a very irregular
and high weld deposit. Slag is very hard to remove.
CURRENT TOO HIGH
This causes excessive penetration with spatter and deep
pointed crater. It may also cause holes to be burned in the
workpiece.
Burns electrodes very quickly.
THE PERFECT WELD
With the correct combination of arc length, current
regulation, inclination and speed of the electrode, you will,
with practice produce the perfect weld.
This should be regular with uniform ripples and no slag
contamination. The arc will make a steady crackling sound.
WARNING: ELECTRICITY CAN KILL - NEVER TOUCH LIVE ELECTRICAL
COMPONENTS.
WARNING: DISCONNECT THE POWER SUPPLY BEFORE ALL INSPECTION
AND MAINTENANCE OPERATION BEWARE HOT SURFACES.
WARNING: ALWAYS LET THE POWER SUPPLY COOL DOWN BEFORE
ACCESSING INTERNAL COMPONENTS.
The frequency of maintenance operations depends on the operating
conditions, how intensively the welder is used and how clean or dirty the
welding site is (aggressive atmospheres etc).
Always inspect the earth return and torch hose before use, to ensure they are
in perfect condition and that the earth clamp is clean and secured correctly
to the cable.
As a general rule the power supply should be inspected at least annually.
Consult your CLARKE dealer for advice if necessary.
DUTY CYCLE
This welder is covered by regulations
EN60974-1 and EN 50199, where the
Duty Cycle (X) is expressed as a
percentage of time the machine may
be used in a given period for a
specified welding current.
i.e. When welding at 80 Amps the
machine may be used for 6 minutes
(60%) in any10 minute period, or, the
machine may be used continuously,
(100%) when welding at 60 Amps.