Parweld XTI-601 MP User manual

INSTRUCTION
MANUAL

OPERATOR MANUAL
ISSUE 1
XTI-601 MP

Welcome
Thank you and congratulaons on choosing Parweld. This Owner’s Manual is designed to help you
get the most out of your Parweld products. Please take me to read the Safety precauons. They will
help you protect yourself against potenal hazards in the workplace. With proper maintenance this
equipment should provide years of reliable service. All our systems conform to ISO9001: 2000 and are
independently audited by NQA.
The enre product range carries the CE mark, and is constructed in accordance with European direcves
and the product specic standards where they apply.
Further Informaon
Parweld is the UK’s leading manufacturer of MIG, TIG and Plasma torches and consumables.
For more informaon about Parweld’s complete range visit: www.parweld.com

CONTENTS
Contents
Page
1.0 Safety Precauons 4
2.0 Product descripon 5
3.0 Technical Specicaons 6
4.0 Descripon of controls 6
5.0 Installaon 7
5.1 Unpacking the Machine 7
5.2 Locaon 7
5.3 Input and grounding connecon 7
5.4 MIG welding torch setup 7
5.5 MMA welding torch setup 8
5.6 TIG welding torch setup 8
6.0 Operaon 8
6.1 MIG Welding guide 9
6.2 MMA welding guide 9
6.3 TIG welding guide 10
7.0 Fault nding 11
8.0 Accessories 15
9.0 Statement of warranty 15

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1.0 Safety Precauons
ELECTRIC SHOCK can kill.
Touching live electrical parts can cause fatal shocks
or severe burns. The electrode and work circuit is
electrically live whenever the output is on. The input
power circuit and machine internal circuits are also
live when power is on.
Do not touch live electrical parts.
Wear dry, sound insulang gloves and body
protecon.
Insulate yourself from work and ground using dry
insulang mats or covers big enough to prevent any
physical contact with the work ground.
Addional safety precauons are required when any
of the following electrically hazardous condions
are present: in damp locaons or while wearing wet
clothing; on metal structures such as oors, grangs,
or scaolds; when in cramped posions such as
sing, kneeling, or lying; or when there is a high risk
of unavoidable or accidental contact with the work
piece or ground.
Disconnect input power before installing or servicing
this equipment. Lockout/tagout input power according
to Safety Standards.
Properly install and ground this equipment according
to naonal and local standards.
Always verify the supply ground - check and ensure
that input power cable ground wire is properly
connected to ground terminal in the receptacle outlet.
When making input connecons, aach proper
grounding conductor rst - double-check connecons.
Frequently inspect input power cable for damage or
bare wiring - replace cable immediately if damaged -
bare wiring can kill.
Turn o all equipment when not in use.
Do not use worn, damaged, under sized, or poorly
spliced cables.
Do not drape cables over your body.
If earth grounding of the work piece is required,
ground it directly with a separate cable.
Do not touch electrode if you are in contact with the
work, ground, or another electrode from a dierent
machine.
Use only well-maintained equipment. Repair or
replace damaged parts at once. Maintain unit
according to manual.
Wear a safety harness if working above oor level.
Keep all panels and covers securely in place.
Clamp work cable with good metal-to-metal contact to
work piece or worktable as near the weld as praccal.
Insulate work clamp when not connected to work
piece to prevent contact with any metal object.
Welding produces fumes and gases. Breathing these
fumes and gases can be hazardous to your health.
FUMES AND GASES can be hazardous.
Keep your head out of the fumes. Do not breathe the
fumes.
If inside, venlate the area and/or use local forced
venlaon at the arc to remove welding fumes and
gases.
If venlaon is poor, wear an approved respirator.
Read and understand the Material Safety Data Sheets
(MSDS’s) and the manufacturer’s instrucons for
metals, consumable, coangs, cleaners, and de-
greasers.
Work in a conned space only if it is well venlated,
or while wearing an air-supplied respirator. Always
have a trained watch person nearby. Welding fumes
and gases can displace air and lower the oxygen level
causing injury or death. Be sure the breathing air is
safe.
Do not weld in locaons near de-greasing, cleaning, or
spraying operaons. The heat and rays of the arc can
react with vapours to form highly toxic and irritang
gases.
Do not weld on coated metals, such as galvanized,
lead, or cadmium plated steel, unless the coang
is removed from the weld area, the area is well
venlated, and while wearing an air-supplied
respirator. The coangs and any metals containing
these elements can give o toxic fumes if welded.
ARC RAYS can burn eyes and skin.
Arc rays from the welding process produce intense,
visible and invisible (ultraviolet and infrared) rays that
can burn eyes and skin. Sparks y o from the weld.
Wear an approved welding helmet ed with a proper
shade of lter lense to protect your face and eyes
when welding or watching
Wear approved safety glasses with side shields under
your helmet.
Use protecve screens or barriers to protect others
from ash, glare and sparks; warn others not to watch
the arc.
Wear protecve clothing made from durable, ame
SAFETY

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resistant material (leather, heavy coon, or wool)
and foot protecon. Welding on closed containers,
such as tanks, drums, or pipes, can cause them to
blow up. Sparks can y o from the welding arc. The
ying sparks, hot work piece, and hot equipment can
cause res and burns. Accidental contact of electrode
to metal objects can cause sparks, explosion,
overheang, or re. Check and be sure the area is safe
before doing any welding.
WELDING can cause re or explosion.
Remove all ammables within 10m of the welding
arc. If this is not possible, ghtly cover them with
approved covers.
Do not weld where ying sparks can strike ammable
material.
Protect yourself and others from ying sparks and hot
metal.
Be alert that welding sparks and hot materials from
welding can easily go through small cracks and
openings to adjacent areas.
Watch for re, and keep a re exnguisher nearby. Be
aware that welding on a ceiling, oor, bulkhead, or
paron can cause re on the hidden side.
Do not weld on closed containers such as tanks,
drums, or pipes, unless they are properly prepared
according to local regulaons
Connect work cable to the work as close to the
welding area as praccal to prevent welding current
from travelling along, possibly unknown paths and
causing electric shock, sparks, and re hazards.
Wear oil-free protecve garments such as leather
gloves, heavy shirt, cuess trousers, high shoes, and
a cap. Remove any combusbles, such as a butane
lighter or matches, from your person before doing any
welding.
FLYING METAL can injure eyes.
Welding, chipping, wire brushing, and grinding cause
sparks and ying metal. As welds cool they can throw
o slag. Wear approved safety glasses with side
shields even under your welding helmet.
BUILDUP OF GAS can injure or kill.
Shut o shielding gas supply when not in use. Always
venlate conned spaces or use approved air-supplied
respirator.
HOT PARTS can cause severe burns.
Do not touch hot parts with bare hands.
Allow cooling period before working on gun or torch.
To handle hot parts, use proper tools and/or wear
heavy, insulated welding gloves and clothing to
prevent burns.
MAGNETIC FIELDS can aect pacemakers.
Pacemaker wearers keep away.
Wearers should consult their doctor before going near
arc welding, gouging, or spot welding operaons.
NOISE can damage hearing.
Noise from some processes or equipment can damage
hearing.
Wear approved ear protecon if noise level is high.
Shielding gas cylinders contain gas under high
pressure.
CYLINDERS can explode if damaged.
Protect compressed gas cylinders from excessive
heat, mechanical shocks, physical damage, slag, open
ames, sparks, and arcs. Install cylinders in an upright
posion by securing to a staonary support or cylinder
rack to prevent falling or pping. Keep cylinders away
from any welding or other electrical circuits. Never
drape a welding torch over a gas cylinder. Never allow
a welding electrode to touch any cylinder. Never weld
on a pressurized cylinder - explosion will result. Use
only correct shielding gas cylinders, regulators, hoses,
and ngs designed for the specic applicaon;
maintain them and associated parts in good condion.
Turn face away from valve outlet when opening
cylinder valve.
Use the right equipment, correct procedures,
and sucient number of persons to li and move
cylinders.
Read and follow instrucons on compressed gas
cylinders, associated equipment, and Compressed Gas
Associaon (CGA) recommendaons.
2.0 Product Descripon
This welding machine is manufactured using advanced
inverter technology. The input voltage is reced to
DC and then inverted to high frequency AC voltage.
before being converted back to DC for the output .This
allows the use of a much smaller transformer and so
allowing weight saving and improved power eciency.
The inverter design also allows the characteriscs of
the machine to be changed to suit MIG, TIG and MMA
welding from the same machine.
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4.0 Descripon of Controls
1) Voltage Display. Displays the welding voltage for
the MIG process and the arc voltage for TIG and MMA
welding
2) Amperage Display. Displays the welding amperage
during MIG, TIG and MMA welding
3) MIG torch euro connector, for connecon of the
MIG torch
4) Posave output connecon, used to connect the
cables for TIG and MMA welding. This is the 50mm
Dinse connecon socket.
5) Trigger socket used to connect the trigger control
on the TIG torch
6) Negave output connecon used to connect the
cables for TIG, MIG and MMA welding. This is the
50mm Dinse connecon socket.
7) Power light This indicates mains power is applied
to the machine and that the machine is currently
switched on when the light is illuminated
8) Fault light indicates if the machine has overheated
or developed a fault condion.
9) MIG/MMA/TIG selector switch Used to select
between MIG, MMA welding mode and Li-arc TIG
welding.
10) Latch in trigger selector
11) Inductance control, this hardens or soens the arc
in MIG welding, .
12) Voltage control This funcon controls the MIG
welding voltage. When in MMA mode it controls ARC
force and for TIG welding it controls the me of the
gas post ow.
13) Amperage control for adjusng the Amperage in
MMA or TIG welding and also the wire feed speed in
MIG welding.
14) MIG wire spool holder accepts 5KG (200mm )
spools
15) Wire feed box for MIG welding
16) Wire tension adjuster for MIG welding
17) Polarity adjustment for MIG welding
18) Burn back control for MIG welding.
ON OFF Switch for switching on or o the mains
supply to the machine. (mounted on the rear of the
machine)
Note the output of the machine is permanently on
3.0 Technical Specicaons
XTI-601MP
Input voltage 230V +/- 10%
Frequency 50/60Hz
Input current 33A max
15 e
Fuse rang 16A
Output OCV 56
MIG 25A/14.4V to 160A/22V
X 30% 60% 100%
I2 160A 115A 90A
U2 22V 20V 18.5V
TIG 10A/10.4V TO 160A/16.4V
X 30% 60% 100%
I2 160A 115A 90A
U2 16.4V 14.6V 13.6V
1
2
3
4
5
6
CONTROLS
7
8
9
10
11
12
13
14
15
16
17
18

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in MMA mode unless the on/o switch is in the o
posion.
5.0 Installaon
Read enre installaon secon before starng
installaon.
SAFETY PRECAUTIONS
• ELECTRIC SHOCK can kill.
• Only qualied personnel should perform this
installaon.
• Only personnel that have read and understood the
Operang Manual should install and operate this
equipment.
• Machine must be grounded per any naonal, local
or other applicable electrical regulaons.
• The power switch is to be in the OFF posion when
installing work cable and electrode cable and when
connecng other equipment.
5.1 Unpacking the Machine
Carefully remove the machine from the packaging,
we recommend you retain the packaging unl the
machine has been fully installed and tested incase it
has been damaged in transit and has to be returned to
the re-seller.
5.2 Locaon
Be sure to locate the welder according to the following
guidelines:
In areas, free from moisture and dust.
Ambient temperature between 0-400C.
In areas, free from oil, steam and corrosive gases.
In areas, not subjected to abnormal vibraon or shock.
In areas not exposed to direct sunlight or rain.
Place at a distance of 12” (300 mm) or more from
walls or similar that could restrict natural airow for
cooling.
5.3 Input and grounding connecon
WARNING
Before starng the installaon, check that your
power supply is adequate for the voltage, amperage,
phase, and frequency specied on the Machine
nameplate.
Operate the welding power source from a single-
phase 50/60 Hz, AC power supply. The input voltage
must match one of the electrical input voltages shown
on the input data label on the unit nameplate. The
XTI-601MP machine should only be used on 230V
supply. Refer to the specicaons table for voltage
tolerances.
Have a qualied electrician connect the input plug.
For long runs over 30m , larger copper wires should
be used. The green/yellow wire in the input cable
connects to the frame of the machine. This ensures
proper grounding of the machine when the machine
plug is inserted into the receptacle.
5.4 MIG welding torch setup
The welder, as shipped from the factory, is
connected for electrode posive (+) polarity. This is
the normal polarity for MIG welding. The polarity of
the welding set can be changed for use with gas less
ux cored wires by reversing the polarity connecons
inside the wire feed cover . Referring to the diagram
following which shows the normal connecon for Gas
assisted welding. For gasless ux cored wire the wire
should be connected to the (-) output.
5.4.1 Changing drive roll sets
1. Turn o the power source.
2. Release the pressure on the idle roll by pulling the
pressure adjuster towards the wire spool holder.
the. The idle roll assembly should now hindge
down away from the pressure roll.
3. Unscrew the plasc knob retaining the grooved
drive roll and side o the drive roller.
4. Ensure the wire size marked on the side of the
feed roller matches the wire size to be used.
5. Replace the drive in reverse of the above
procedure ensuring the wire size to be used is
marked on the outward facing side of the roller as
it is reed.
NOTE: Be sure that the torch liner and contact p are
also sized to match the selected wire size.
5.4.2 Welding wire installaon (MIG)
Open the Wire Drive Compartment Door
6. Unscrew the plasc retaining wheel from the end
of the spool holder sha.
7. Posion the wire spool so that it will rotate in a
direcon when feeding so as to be de-reeled from
the boom of the coil.
8. Slide the wire spool all the way onto the sha and
ret the plasc retaining nut.
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5.4.4 Shielding gas connecon (MIG)
1. Using the gas hose supplied connect the hose
to the gas inlet connecon on the rear of the
machine and ghten it with a spanner.
2. Connect the opposite end of the gas hose to the
output connecon of a gas regulator capable of
supplying the correct gas ow for the welding
operaon.
Note The gas cylinder should be secured to ensure it
cannot fall.
5.5 MMA Torch setup
MMA electrodes are generally connected
to the ‘+’ terminal and the work lead to the ‘-‘terminal
But if in doubt consult the electrode manufacturer’s
literature.
Connect electrode lead to posive terminal
Connect work lead to negave terminal
5.6 TIG Torch installaon
Note a special connector is require with a
combined gas and power Dinse connector this type of
torch is available from Parweld
IF TIG welding the torch should always be connected
to the ‘-’ terminal. .
The work return lead should be connected to the
Posive dinse connecon
The trigger should be connected to the 3 pin trigger
socket.
5.6.1 Shielding Gas (TIG)
1. Using the gas hose supplied connect the hose
to the gas inlet connecon on the rear of the
machine and ghten it with a spanner.
2. Connect the opposite end of the gas hose to the
output connecon of a gas regulator capable of
supplying the correct gas ow for the welding
operaon.
Note The gas cylinder should be secured to ensure it
cannot fall.
For TIG welding it is essenal to use pure Argon or a
shielding Gas specically for use with TIG welding.
6.0 Operaon
WARNING
When using an open arc process, it is necessary to
use correct eye, head, and body protecon.
6.1 MIG Welding
Controls used
2T/4T sets the trigger to momentary or latching for
longer welding runs.
Voltage adjustment knob, allows the adjustment of
welding voltage
Current adjustment knob which controls the wire
Note:- there is a fricon brake on the reel hub
assembly to prevent the wire spool over running
when welding stops ensure the this is slackened to
the minimum seng. It can be adjusted by means of
the nut visible when the plasc nut is removed.
9. Turn the Spool unl the free end of the electrode
is accessible. While securely holding the
electrode, cut o the bent end and straighten
the rst 100mm. (If the electrode is not properly
straightened, it may not feed properly through the
wire drive system Manually feed the wire from
the wire reel and through the wire guide and then
over the top of the wire feed roller (ensure the
pressure arm is in its raised posion.)
10. Connue to feed the wire through the outlet
guide unl 20mm of wire is protruding from the
front of the machine torch connector.
11. Reposion the adjustable pressure arm to
its original posion to apply pressure. Adjust
pressure as necessary.
Note the pressure arm should be adjusted in order to
give the minimum amount of pressure on the wire to
allow reliable feeding,
5.4.3 Torch installaon
Your Parweld MIG/MAG Welding Torch has been
supplied ready to weld. It has been supplied with
the standard consumables denoted in the product
brochure.
To connect the torch to the power source:-
1. Remove the p adaptor and contact p
2. Inch the wire from the exit of the wire guide on
the feed unit as Figure 1. Ensure that it does not
short out on any machine panels.
3. Carefully slide the electrode wire into the torch
liner and slowly locate the torch gun plug body
into the feed unit central connector and ghten
the gun plug nut as Figure 2
Note; To aid the inial locaon of a new torch and to
prevent damage to the gas nipple O-ring a very light
applicaon of grease to the O Ring is benecial.
4. Keeping the torch as straight as possible, use the
torch trigger to feed the electrode wire 50mm
from the end of the liner conduit.
5. Once the electrode wire has stopped, ret the p
adaptor, diuser, contact p and gas nozzle.
6. Trim the electrode wire to within 5mm of the
face of the nozzle, this will facilitate jolt free arc
iniaon.
7. Press the gas purge buon and check the gas ow
is adequate for your applicaon.
8. An inexpensive ow meter is available from
Parweld reference 806001.
5.4.4 Work return lead connecon (MIG)
Insert the work return lead connector into the
Negave dinse receptacle on the front panel of the
machine and twist it clockwise unl ghtly secured.
Connect the earth clamp to the work piece as close as
possible to the point to be welded and ensure that a
good electrical connecon is created to bare metal.
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feed speed
Inductance control which controls the smoothness of
the arc
Burn back control which limits the wire sck out at
the end of a weld.
1. Depress the process selector buon unl the light
for MIG welding is illuminated.
Note: Check that drive rolls, and torch parts are
correct for the wire size and type being used.
2. The opmum idle roll pressure varies with
type of wire, wire diameter, surface condions,
lubricaon, and hardness. As a general rule, hard
wires may require greater pressure, and so, or
aluminium wire, may require less pressure than
the factory seng. The opmum idle roll seng
can be determined as follows:
3. Press end of gun against a solid object that is
electrically isolated from the welder output and
press the gun trigger for several seconds.
4. If the wire “bird nests”, jams or breaks at the
drive roll, the idle roll pressure is too great. Back
the adjustment knob out 1/2 turn, run new wire.
If the only result was drive roll slippage, loosen
the Hand nut on the central connector and pull
the gun forward about 6” (15cm) away from the
power source. There should be a slight waviness
in the exposed wire. If there is not waviness, the
pressure is too low. Tighten the adjustment knob
1/4 turn, reinstall the gun cable and repeat the
above steps.
6.1.1 Feeding wire electrode
1. When triggering, the electrode and drive
mechanism are electrically “LIVE” relave to work
and ground and remain “LIVE” several seconds
aer the gun trigger is released.
WARNING
When using an open arc process, it is necessary to
use correct eye, head, and body protecon.
2. Posion wire over joint. The end of the wire may
be lightly touching the work.
3. Lower welding helmet, operate gun trigger, and
begin welding. Hold the gun so the contact p to
work distance is about 3/8” (10 mm).
4. To stop welding, release the gun trigger and then
pull the gun away from the work aer the arc goes
out.
5. When no more welding is to be done, close valve
on gas cylinder (if used), momentarily operate gun
trigger to release gas pressure and turn o the
machine.
6.1.1 Opmising weld parameters
NOTE These sengs are guidelines only. Material
and wire type, joint design, t up, posion, shielding
gas, etc. aect sengs. Produce test welds to be sure
they comply to specicaons.
Material thickness determines weld parameters.
1. Convert Material Thickness to Amperage (A)
(0.25mm= 1 Amp) 3.2mm = 125 A
2. Select Wire Size
Amperage Range Wire Size
40 - 145 A 0.8 mm
50 - 180 A 1.0 mm
3. Select Wire Speed (Amperage)
Wire Size Feed speed
0.8 mm 0.05m/min per Amp
1.0 mm 0.04m/min per Amp
So based on 3.2 mm material thickness amperage
should be 125A if using 1.0mm wire then the wire
feed speed should be
0.04 X 125= 5m/min
Wire speed (amperage) controls weld penetraon
4. Select Voltage. Voltage controls height and width
of weld bead.
Low Voltage: wire stubs into work
High Voltage: arc is unstable (spaer)
Set voltage midway between high/low voltages.
And then ne tune accordingly
6.2 MMA Welding Guide
Controls used
Current control for adjusng the welding current
Arc force (voltage control which controls the hardness
of the arc.
Eects of MMA welding various materials
High tensile and alloy steels
The two most prominent eects of welding these
steels are the formaon of a hardened zone in the
weld area, and, if suitable precauons are not taken,
the occurrence in this zone of under-bead cracks.
Hardened zone and under-bead cracks in the weld
area may be reduced by using the correct electrodes,
preheang, using higher current sengs, using larger
electrodes sizes, short runs for larger electrode
deposits or tempering in a furnace.
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Manganese steels
The eect on manganese steel of slow cooling from
high temperatures is enbrilement. For this reason it
is absolutely essenal to keep manganese steel cool
during welding by quenching aer each weld or skip
welding to distribute the heat.
Cast iron
Most types of cast iron, except white iron, are
weldable. White iron, because of its extreme
brileness, generally cracks when aempts are made
to weld it. Trouble may also be experienced when
welding white-heart malleable, due to the porosity
caused by gas held in this type of iron.
Copper and alloys
The most important factor is the high rate of heat
conducvity of copper, making preheang of heavy
secons necessary to give proper fusion of weld and
base metal.
Types of electrodes
Arc welding electrodes are classied into a number
of groups depending on their applicaons. There are
a great number of electrodes used for specialized
industrial purposes which are not of parcular interest
for everyday general work. These include some low
hydrogen types for high tensile steel, cellulose types
for welding large diameter pipes, etc. The range of
electrodes dealt with in this publicaon will cover the
vast majority of applicaons likely to be encountered;
are all easy to use and all will work on even the most
basic of welding machines.
Metals being joined & electrode comments
Mild steel
6013 ideal electrodes for all general purpose work.
Features include outstanding operator appeal, easy
arc starng and low spaer.
10
OPERATION
Mild steel
7014 all posional electrode for use on mild and
galvanized steel furniture, plates, fences, gates, pipes
and tanks etc. Especially suitable for vercal down
welding.
Cast iron
99% nickel suitable for joining all cast irons except
white cast iron
Stainless steel
318l-16 high corrosion resistance. Ideal for dairy work,
etc. On stainless steels.
6.3 TIG Welding guide
Controls used
2T/4T sets the trigger to momentary or latching for
longer welding runs.
Voltage adjustment knob, allows the adjustment of
the post gas ow me aer welding stops.
Current adjustment knob which controls the output
current.
Torch starng in Li TIG mode
Ensure the gas supply is switched on. Briey contact
the p of the tungsten electrode down onto the work
piece with the torch at around 700 from vercal,
depress the torch trigger to switch on the welding
power and the gas ow. Li the torch up from the
work piece to draw out an arc. To prevent melng of
the end of the tungsten the machine will increase the
output current when it detects the rise in arc voltage
as the tungsten is lied from the work piece. TO stop
welding release the trigger
Note in 4T mode the trigger should be release during
welding and then depressed briey to stop the
welding process.
TIG welding guide ranges
Electrode
diameter
DC current (amps)
0.040” (1.0mm) 30 – 60
1/16” (1.6mm) 60 – 115
3/32” (2.4mm) 100 – 165

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FAULT
FINDING
Tungsten electrode types
Electrode
type Welding applicaon Colour
code
Thoriated
2%
DC welding of mild steel,
stainless steel and copper.
Excellent arc starng, long
life, high current carrying
capacity.
RED
Ceriated
2%
DC welding of mild steel,
stainless steel, copper,
aluminium, their alloys
longer life, more stable
arc, easier starng, wider
current range, narrower
more concentrated arc
GREY
Guide for selecng ller wire diameter
Filler wire
diameter DC current range
1/16” (1.6
mm) 20 - 90
3/32” (2.4
mm) 65 - 115
1/8” (3.2
mm) 100 - 165
3/16” (4.8
mm) 200-350
The ller wire diameter specied is a guide only, other
diameter wires may be used according to the welding
applicaon
Shielding gas selecon
Alloy Shielding gas
Aluminium &
alloys Pure Argon
Carbon steel Pure Argon
Stainless steel Pure Argon
Nickel alloy Pure Argon
Copper Pure Argon
Titanium Pure Argon
7.0 Fault Finding
MMA welding problem
Descripon Possible cause Remedy
Gas pockets
or voids in
weld metal
(porosity)
(a) Electrodes
are damp
(b) Welding
current is too
high.
(c) Surface
impuries such
as oil, grease,
paint, etc
(a) Dry electrodes
before use
(b) Reduce
welding current
(c) Clean joint
before welding
Crack occur-
ring in weld
metal soon
aer solidi-
caon.
(a) Rigidity of
joint.
(b) Insucient
throat thickness.
(c) Cooling rate is
too high.
(a) Redesign
to relieve weld
joint of severe
stresses or use
crack resistance
electrodes.
(b) Travel slightly
slower to allow
greater build up
in throat.
(c) Preheat plate
and cool slowly.
A gap is le
by failure
of the weld
metal to ll
the root of
the weld
(a) Welding
current is too
low.
(b) Electrode too
large for joint.
(c) Insucient
gap
(d) Incorrect
sequence
(a) Increase
welding current
(b) Use smaller
diameter
electrode.
(c) Allow wider
gap
(d) Use correct
build-up
sequence
11

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12
Descripon Possible cause Remedy
Porons of
the weld
run do not
fuse to the
surface of
the metal or
edge of the
joint.
(a) Small
electrodes used
on heavy cold
plate
(b) Welding
current is too
low
(c) Wrong
electrode angle
(d) Travel speed
of electrode is
too high
(e) Scale or dirt
on joint surface
(a) Use larger
electrodes and
preheat the plate
(b) Increase
welding current
(c) Adjust angle
so the welding arc
is directed more
into the base
metal
(d) Reduce
travel speed of
electrode
(e) Clean surface
before welding.
Non-metallic
parcles
are trapped
in the weld
metal (slag
inclusion).
(a) Non-metallic
parcles may
be trapped in
undercut from
previous run
(b) Joint
preparaon too
restricted
(c) Irregular
deposits allow
slag to be
trapped.
(d) Lack of
penetraon with
slag trapped
beneath weld
bead.
(e) Rust or
mill scale is
prevenng full
fusion.
(f) Wrong
electrode for
posion in which
welding is done.
(a) If bad
undercut is
present, clean
slag out and cover
with a run from a
smaller diameter
electrode.
(b) Allow for
adequate
penetraon and
room for cleaning
out the slag
(c) If very bad,
chip or grind out
Irregularies
(d) Use smaller
electrode with
sucient current
to give adequate
penetraon.
adequate
penetraon. Use
suitable tools to
remove all slag
from corners
(f) Use electrodes
designed for
posion in which
welding is done,
otherwise proper
control of slag is
dicult.
TIG welding problems
Weld quality is dependent on the selecon of the
correct consumables, maintenance of equipment and
proper welding technique.
Descripon Possible Cause Remedy
Excessive
bead build
up or poor
penetraon
or poor
fusion at
edges of
weld
Welding current is
too low
Increase weld
current and/
or faulty joint
preparaon
Weld bead
too wide
and at or
undercut
at edges
of weld or
excessive
burn through
Welding current is
too high
Decrease weld
current
Weld bead
too small or
insucient
penetraon
or ripples
in bead
are widely
spaced apart
Travel speed too
fast
Reduce travel
speed
Weld bead
too wide or
excessive
bead build up
or excessive
penetraon
in bu joint
Travel speed too
slow
Increase travel
speed
Uneven leg
length in
llet joint
Wrong placement
of ller rod
Re-posion ller
rod
Electrode
melts when
arc is struck
Electrode is
connected to the
‘+’ terminal
Connect the
electrode to the
‘-‘ terminal
FAULT
FINDING

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Descripon Possible Cause Remedy
Dirty weld
pool
(a) Electrode
contaminated
through contact
with work piece or
ller rod material
(b) Gas contami-
nated with air
(a) Clean the
electrode by
grinding o the
contaminates
(b) Check gas
lines for cuts
and loose ng
or change gas
cylinder
Electrode
melts or
oxidizes
when an arc
is struck
(a) No gas owing
to welding region
(b) Torch is clogged
with dust
(c) Gas hose is cut
(d) Gas passage
contains impuries
(e) Gas regulator is
turned o
(f) Torch valve is
turned o
(g) The electrode
is too small for the
welding current
(a) Check the
gas lines for
kinks or breaks
and gas cylinder
contents
(b) Clean torch
(c) Replace gas
hose
(d) Disconnect
gas hose from
torch then raise
gas pressure
to blow out
impuries.
(e) Turn on
(f) Turn on
(g) Increase
electrode
diameter or
reduce the
welding current
Poor weld
nish
Inadequate
shielding gas
Increase gas
ow or check
gas line for gas
ow problems
Arc uers
during TIG
welding
(a) Tungsten
electrode is too
large for the
welding current
(b) Absence of
oxides in the Weld
pool.
(a) Select
the right size
electrode. Refer
to basic TIG
welding guide.
(b) Refer basic
TIG welding
guide for ways
to reduce arc
uer
Descripon Possible Cause Remedy
Welding arc
cannot be
established
(a) Work clamp is
not connected to
the work piece or
the work/torch
leads are not
connected to the
machine
(b) Torch lead is
disconnected
(c) Gas ow
incorrectly set,
cylinder empty or
the torch valve is
o
a) Connect the
work clamp to
the work piece
or connect the
work/torch
leads to the
right welding
terminals.
(b) Connect it to
the ‘.’ terminal.
(c) Select the
right ow
rate, change
cylinders or turn
torch valve on.
Arc start is
not smooth
(a) Tungsten
electrode is too
large for the
welding current .
(b) The wrong
electrode is being
used for the
welding job.
(c) Gas ow rate is
too high.
(d) Incorrect
shielding gas is
being used.
(e) Poor work
clamp connecon
to work piece
(a) Select
the right size
electrode
(b) Select the
right electrode
type. Refer
to basic TIG
welding guide
(c) Select the
correct rate for
the welding job.
Refer to basic
TIG welding
guide
(d) Select the
right shielding
gas. Refer
to basic TIG
welding guide
(e) Improve
connecon to
work piece
FAULT
FINDING
13

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Power source problems
Descripon Possible cause Remedy
The
welding arc
cannot be
established
(a) The primary
supply voltage has
not been switched
on
(b) The welding
power source switch
is switched o
(c) Loose
connecons
internally
(a) Switch on
the primary
supply voltage
(b) Switch on
the welding
power source.
(c) Have a
qualied service
engineer repair
the connecon
Maximum
output
welding
current
cannot be
achieved
with
nominal
mains
supply
voltage
Defecve control
circuit
Have a qualied
service
engineer
inspect then
repair the
welder
Welding
current
reduces
when
welding
Poor work lead
connecon to the
work piece
Ensure that
the work lead
has a reliable
electrical
connecon to
the work piece
A total loss
of power,
pilot lamp
is o, no
output, the
fan is not
operang
(a) Failure of input
voltage
(b) Possible over
voltage
(c) Internal fault
with the machine
(a) Re-establish
mains supply
(b) Check
voltage and
if necessary
move machine
to alternave
supply
(c) Have a
qualied service
engineer
inspect then
repair the
welder
Descripon Possible cause Remedy
Fault lamp
is on, no
power
output
(a) Machine
overheated
(b) Over current
state
(c) Internal fault
with machine
(a) Allow to
cool with fan
running
(b) Switch o
mains power
to the machine
and re start
(c) Have a
qualied service
engineer
inspect
then repair the
welder
ROUTINE MAINTENANCE
The only roune maintenance required for the power
supply is a thorough cleaning and inspecon, with the
frequency depending on the usage and the operang
environment.
Warning
Disconnect primary power at the source before
removing the cover. Wait at least two minutes before
opening the cover to allow the primary capacitors to
discharge.
To clean the unit, remove the screws securing the
outer cover, li o the outer cover and use a vacuum
cleaner to remove any accumulated dirt and dust. The
unit should also be wiped clean, if necessary; with
solvents that are recommended for cleaning electrical
apparatus.
FAULT
FINDING
14
ACCESSORY

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15
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ACCESSORY
ACCESSORY
9.0 Statement of Warranty
Limited Warranty:
Parweld Ltd, hereafter, “Parweld” warrants its customers that its products
will be free of defects in workmanship or material. Should any failure to
conform to this warranty appear within the time period applicable to the
Parweld products as stated below, Parweld shall, upon notication thereof
and substantiation that the product has been stored, installed, operated,
and maintained in accordance with Parweld’s specications, instructions,
recommendations and recognized standard industry practice, and not
subject to misuse, repair, neglect, alteration, or accident, correct such
defects by suitable repair or replacement, at Parweld’s sole option, of
any components or parts of the product determined by Parweld to be
defective.
Parweld makes no other warranty, express or implied. This warranty
is exclusive and in lieu of all others, including, but not limited to any
warranty of merchantability or tness for any particular purpose.
Limitation of Liability:
Parweld shall not under any circumstances be liable for special, indirect
or consequential damages, such as, but not limited to, lost prots and
business interruption. The remedies of the purchaser set forth herein
are exclusive and the liability of Parweld with respect to any contract,
or anything done in connection therewith such as the performance or
breach thereof, or from the manufacture, sale, delivery, resale, or use
of any goods covered by or furnished by Parweld whether arising out of
contract, negligence, strict tort, or under any warranty, or otherwise, shall
not, except as expressly provided herein, exceed the price of the goods
upon which such liability is based. No employee, agent, or representative
of Parweld is authorized to change this warranty in any way or grant any
other warranty.
Purchaser’s rights under this warranty are void if replacement parts or
accessories are used which in Parweld’s sole judgement may impair the
safety or performance of any Parweld product.
Purchaser’s rights under this warranty are void if the product is sold to
purchaser by non-authorized persons.
The warranty is effective for the time stated below beginning on the date
that the authorized Distributor delivers the products to the purchaser.
Notwithstanding the foregoing, in no event shall the warranty period
extend more than the time stated plus one year from the date Parweld
delivered the product to the authorized distributor.
8.0 Accessories
8.1 Torch spares
Stock Code Descripon
CKE403 Electrode Holder with 3m Lead
CKC403 Earth Lead 3m with Clamp
ER17-12S1BGD Direct t Tig Torch
WP17AK Tig Spares Kit in Plasc Case
8.2 Gas equipment
Everyday Gas Regulators – 300
BAR
Single Stage
Features
Flow rate up to 96m3/h (3389 3/h)
• Full 300 bar capability
• Outlet pressure indicated on the bonnet
• Boom entry design suited for top outlet
cylinder valves
Fings
• Fied with standard 3/8” BSP outlet
• Fied with 5/8” BSP inlet connecons
Stock Code Descripon Maximum Outlet
Pressure
E700140 Argon Preset Regulator 3.0 Bar
E700141 Argon Indicator Regulator 3.0 Bar
E700113 1 Gauge Argon 30 lpm ow
E700123
2 Gauge Argon 30 lpm ow
Flow Meters
Features
• Designed from brass bar whilst the tube
and cover are moulded from high quality
polycarbonate to ensure high impact
resistance and clarity
• Calibrated to operate at an inlet pressure
of 30PSI
• Sensive needle valve provides easy
adjustment and the downward facing
outlet connection eliminates hose kinking.
Fittings
• Fitted with standard 3/89 BSP inlet and outlet
connections
Stock Code Description
706100 Flow Meter Mixed Gas 15
lpm