WIA WELDMATIC 270 User manual

MIG Welder
WELDING.COM.AU
OPERATORS MANUAL | CP146-1
From serial numbers CP1462A*

32
WELDING INDUSTRIES
AUSTRALIA
A Division of ITW Australia Pty Ltd
ABN: 63 004 235 063
1300 300 884
Email: [e-mail]
welding.com.au
WELDWELL
NEW ZEALAND
A Division of ITW New Zealand
NZBN: 9 429 039 833 129
GST NO: 080177186
0800 9353 9355
Email: [e-mail]
weldwell.co.nz

32
CONTENTS
Section General Information Page
Safe Practices 4
1 Introduction 7
2 Receiving 7
3 Specifications 8
4 Controls 9
5 Installation 10
6 Normal Welding Sequence 12
7 Basic Welding Information 12
8 General Maintenance 14
9 External Trouble Shooting 15
10 Trouble Shooting Chart 16
11 Circuit Diagrams 18
12 Assembly & Parts List
Power Source 19
13 Assembly & Parts List
Gun & Cable 21
14 Australian Warranty
Information 23
15 New Zealand Warranty
Information 25

Weldmatic 270 | Operator Manual | Model No CP146-2
54
SAFE PRACTICES WHEN USING
WELDING EQUIPMENT
These notes are provided in the interests
of improving operator safety. They should
be considered only as a basic guide to
Safe Working Habits. A full list of Standards
pertaining to industry is available from
the Standards Association of Australia,
also various State Electricity Authorities,
Departments of Labour and Industry
or Mines Department and other Local
Health or Safety Inspection Authorities
may have additional requirements.
Australian Standard AS1674.2 provides a
comprehensive guide to safe practices
in welding.
Eye Protection
NEVER LOOK AT AN ARC WITHOUT
PROTECTION. Wear a helmet with safety
goggles or glasses with side shields
underneath, with appropriate filter lenses
protected by clear cover lens. This is a
MUST for welding, cutting, and chipping to
protect the eyes from radiant energy and
flying metal. Replace the cover lens when
broken, pitted, or spattered.
Recommended Shade Filter Lens
Amps TIG MMAW MIG Pulsed
MIG
0-100 10 9 10 12-13
100-150 11 10 10 12-13
150-200 12 10-11 11-12 12-13
200-300 13 11 12-13 12-13
300-400 14 12 13 14
400-500 — 13 14 14
500 + — — 14 14
READ FIRST
The information contained in this
manual is set out to enable you
to properly maintain your new
equipment and ensure that you
obtain maximum operating efficiency.
Please ensure that this information is
kept in a safe place for ready reference
when required at any future time.
When ordering spare parts, please
quote the model and serial number
of the power source and part
number of the item required. All
relevant numbers are shown in lists
contained in this manual. Failure to
supply this information may result in
unnecessary delays in supplying the
correct parts.
SAFETY
Before this equipment is put into
operation, please read the Safe
Practices section of this manual.
This will help to avoid possible injury
due to misuse or improper welding
applications.
PLASTIC HANDLES ON
POWER SOURCE
Please note that the handles fitted
to the Weldmatic power source are
intended for carrying the equipment
by hand only.
DO NOT use these handles for
suspending or mounting the power
source in any other manner.

54
Burn Protection
The welding arc is intense and visibly bright.
Its radiation can damage eyes, penetrate
light-weight clothing, reflect from light-
coloured surfaces, and burn the skin and
eyes. Burns resulting from gas-shielded
arcs resemble acute sunburn, but can be
more severe and painful.
Wear protective clothing - leather or heat
resistant gloves, hat, and safety-toe boots.
Button shirt collar and pocket flaps, and
wear cuff less trousers to avoid entry of
sparks and slag.
Avoid oily or greasy clothing. A spark may
ignite them. Hot metal such as electrode
stubs and work pieces should never be
handled without gloves.
Ear plugs should be worn when welding in
overhead positions or in a confined space.
A hard hat should be worn when others are
working overhead.
Flammable hair preparations should not be
used by persons intending to weld or cut.
Toxic Fumes
Adequate ventilation with air is essential.
Severe discomfort, illness or death can
result from fumes, vapours, heat, or oxygen
depletion that welding or cutting may
produce. NEVER ventilate with oxygen.
Lead, cadmium, zinc, mercury, and
beryllium bearing and similar materials
when welded or cut may produce harmful
concentrations of toxic fumes. Adequate
local exhaust ventilation must be used,
or each person in the area as well as
the operator must wear an air-supplied
respirator. For beryllium, both must be used.
Metals coated with or containing materials
that emit fumes should not be heated
unless coating is removed from the work
surface, the area is well ventilated, or the
operator wears an air-supplied respirator.
Work in a confined space only while it is
being ventilated and, if necessary, while
wearing air-supplied respirator.
Vapours from chlorinated solvents can
be decomposed by the heat of the arc (or
flame) to form phosgene, a highly toxic
gas, and lung and eye irritating products.
The ultra-violet (radiant) energy of the arc
can also decompose trichlorethylene
and perchloroethylene vapours to form
phosgene. Do not weld or cut where solvent
vapours can be drawn into the welding or
cutting atmosphere or where the radiant
energy can penetrate to atmospheres
containing even minute amounts of
trichlorethylene or perchloroethylene.
Fire and Explosion Prevention
Be aware that flying sparks or falling slag can
pass through cracks, along pipes, through
windows or doors, and through wall or
floor openings, out of sight of the operator.
Sparks and slag can travel up to 10 metres
from the arc.
Keep equipment clean and operable, free
of oil, grease, and (in electrical parts) of
metallic particles that can cause short circuits.
If combustibles are present in the work
area, do NOT weld or cut. Move the
work if practicable, to an area free of
combustibles. Avoid paint spray rooms, dip
tanks, storage areas, ventilators. If the work
can not be moved, move combustibles at
least 10 metres away out of reach of sparks
and heat; or protect against ignition with
suitable and snug-fitting fire-resistant
covers or shields.

Weldmatic 270 | Operator Manual | Model No CP146-2
76
Walls touching combustibles on opposite
sides should not be welded on or cut. Walls,
ceilings, and floor near work should be
protected by heat-resistant covers or shields.
A person acting as Fire Watcher must be
standing by with suitable fire extinguishing
equipment during and for some time after
welding or cutting if;
– Combustibles (including building
construction) are within 10 metres.
– Combustibles are further than 10
metres but can be ignited by sparks.
– Openings (concealed or visible) in floors
or walls within 10 metres may expose
combustibles to sparks.
– Combustibles adjacent to walls,
ceilings, roofs, or metal partitions can
be ignited by radiant or conducted heat.
After work is done, check that area is free of
sparks, glowing embers, and flames.
A tank or drum which has contained
combustibles can produce flammable
vapours when heated. Such a container
must never be welded on or cut, unless
it has first been cleaned as described in
AS.1674-2. This includes a thorough steam
or caustic cleaning (or a solvent or water
washing, depending on the combustible’s
solubility), followed by purging and inerting
with nitrogen or carbon dioxide, and using
protective equipment as recommended in
AS.1674-2. Water-filling just below working
level may substitute for inerting.
Hollow castings or containers must be
vented before welding or cutting. They can
explode. Never weld or cut where the air may
contain flammable dust, gas, or liquid vapours.
Shock Prevention
Exposed conductors or other bare metal
in the welding circuit, or ungrounded
electrically alive equipment can fatally
shock a person whose body becomes
a conductor. Ensure that the equipment
is correctly connected and earthed. If
unsure have the equipment installed by a
qualified electrician. On mobile or portable
equipment, regularly inspect condition of
trailing power leads and connecting plugs.
Repair or replace damaged leads.
Fully insulated electrode holders should
be used. Do not use holders with
protruding screws. Fully insulated lock-type
connectors should be used to join welding
cable lengths.
Terminals and other exposed parts of
electrical units should have insulated knobs
or covers secured before operation.
If the supply cable is damaged
it must be replaced by the
manufacturer, their service agent
or a similarly qualified person.

76
1 INTRODUCTION
Gas Metal Arc Welding (G.M.A.W.) is an
arc welding process where a consumable
wire is fed by motor driven feed rolls to a
welding gun, and where welding current is
supplied from the welding power source.
The welding arc is struck between the work
piece and the end of the wire, which melts
into the weld pool. The arc and the weld
pool are both shielded by gas flow from the
gun, or in the case of “self shielded” wires,
by gases generated by the wire core.
The process is very versatile in that by
selection of the correct wire composition,
diameter and shielding gas, it can be used
for applications ranging from sheet-metal
to heavy plate, and metals ranging from
carbon steel to aluminium alloys.
The Weldmatic Fabricator has been
designed to be used with consumable
wires in the range from 0.6mm to 1.6mm
diameter. The smaller wire sizes are used
when welding at lower currents, such as
sheet-metal applications. Increasing the
wire diameter permits higher welding
currents to be selected.
A common application of G.M.A.W. is for
welding Mild Steel. In this application, a
Mild Steel solid consumable wire such as
AUSTMIG ES6 is used with a shielding gas
of Carbon Dioxide, or Argon mixed with
Carbon Dioxide. Alternatively, Flux-cored
consumable wires are available in both gas
shielded, and ‘gasless’ self shielding types.
Stainless steel and Aluminium can be
welded with G.M.A.W. using the correct
consumable wire and shielding gas.
2 RECEIVING
Check the equipment received against
the shipping invoice to make sure the
shipment is complete and undamaged. If
any damage has occurred in transit, please
immediately notify your supplier.
The Weldmatic 270 package contains:
– Weldmatic 270 Power Source CP146-2
– W64-1 Wire Feeder with 10m
interconnection Cable 35mm2Weld
Cable
– 10m Work Lead with Clamp
– Welding Torch 200A 3m with 0.6, 0.8,
0.9 and 1.2mm tips.
– Gas Regulator
– Gas Hose
– (This) Owner Manual CP146-40

Weldmatic 270 | Operator Manual | Model No CP146-2
98
3 SPECIFICATIONS
Manufactured to Standards AS60974-1.
Rated Input Voltage 240 Vac, 50 Hz
Rated Primary Current 25.3Amps
Maximum Primary Current 56 Amps
Recommended Generator kVA 13.5 kVA
Rated Output @ 40C Duty cycle based on 10 min cycle time
270 Amp, 27.5 V, 20% duty
150 Amp, 21.5 V, 60% duty
120 Amp, 20 V, 100% duty
Welding Current 30-270 Amps
Open Circuit Voltage 17-41 V
Shipping weight
115 kg - Power source only
142 kg - Includes wirefeeder & leads
Mains Circuit Breaker Rating 25 Amps
Supply plug 15 Amp (240 V)
for initial commissioning only
Fitted Supply Cable
50/0.25 Four Core,
Heavy Duty PVC
Cooling Fan on demand, fan
operates only as required to cool internal
components
Insulation Class H, 140°C Rise.
Wirefeeder Circuit Breaker Rating 5 Amps

98
Fig 1 Power Source Controls
1 Circuit Breaker
This circuit breaker protects the 30 Vac
wirefeeder supply circuit.
2 Wirefeeder Control Socket
Connector for control cable from remote
wirefeeder.
3 Standby/Operate Switch
4 Coarse Voltage Control
This switch provides Coarse adjustment of
the output welding voltage over four ranges.
4 POWER SOURCE CONTROLS
5 Fine Voltage Control
This switch provides Fine adjustment of the
output welding voltage over four steps.
6 Gas Outlet
Connector for shielding gas hose from
remote wirefeeder.
7 Negative Welding Output Terminal
8 Positive Welding Output Terminal
7
6
5
3
2
1
4
8

Weldmatic 270 | Operator Manual | Model No CP146-2
1110
5 INSTALLATION
Connection to Electrical Mains
Power Supply
The Weldmatic 270 is factory fitted with a
3 metre, 3 core 2.5 mm2 Heavy Duty PVC
mains power supply cable with moulded
3 pin, 15 Amp, Single Phase plug.
15 Amp Supply Limited Output
To operate the machine with the 15 Amp
plug from a 15 Amp mains supply, the output
of the machine needs to be limited, so as
not to exceed primary current Ieff 15 Amp.
A Weld voltage selection of D-1, and
operation at 22% duty cycle (i.e. 2 min 12
sec on, 7 min 48 sec off) will maintain an
effective input current Ieff of 15 Amp.
The output will be limited to 200 Amp
(based on conventional load). The
maximum input limited to 32 Amp.
A 15 Amp socket outlet installation, typically
supplied with a 20 Amp “C” curve circuit
breaker, will be able to safely supply this.
Maximum Rated Output
To achieve the rated output of 270 Amp,
20% duty the machine requires maximum
primary current Imax 56 Amp and effective
primary current Ieff 25.3 Amp.
The machine needs to be fitted with a plug
of 25 Amp capacity or greater, and a supply
circuit capacity of 25 Amp or greater.
The minimum recommended supply circuit
breaker rating for a Weldmatic 270 is
25 Amps. For Australian and New Zealand
installation a 32 Amp plug is the closest
suitable size. The supply circuit will also
need to be rated at 32 Amp.
Successful Operation
Successful operation will depend on a
number of factors:
– Variation in circuit breaker thresholds
– Ambient temperature
– Number of previous circuit breaker
operations
– Actual weld conditions – can result in
higher weld currents
– Repeated starts – can result in high
inrush currents raising the circuit
breakerthreshold.
Repeated circuit breaker operation at weld
start can sometimes be overcome by using
a “D” curve circuit breaker.
To reduce nuisance tripping, a higher rated
circuit breaker can be selected, but the
supply circuit wiring capacity must be
increased to suit.
The current rating of the supply cable
depends on cable size and method of
installation. Refer to AS/NZS 3008.1, Table 9.
Supply Cord Replacement
If it becomes necessary to replace the
mains power supply flexible cable, use
only cable with the correct current rating.
Access to the supply terminals is gained by
removing the power source side panels.
The replacement cable must be fitted and
retained in the same manner as the original.
NOTE. All electrical work shall
only be undertaken by a qualified
electrician.

1110
To setup for this condition, connect the
‘WORK’ lead plug into the (+) output socket
on the Power Source, and the ‘WELDING’
lead from the wirefeeder into the (-) socket
on the Power Source, as in Figure 3
Fitting the Gas Cylinder
Place the gas cylinder on the tray at the rear
of the welder. Retain the cylinder with the
chain provided.
Fit the gas regulator to the cylinder. DO
NOT apply grease or oil to these joints.
Fit the end of the gas inlet hose from the
composite cable to the connector supplied
with the gas regulator, and secure with the
clamp also supplied.
Remote Wirefeeder
The remote wirefeeder is connected to the
Weldmatic Fabricator power source via the
composite cable interconnecting lead. Check
all connections are firmly made to ensure good
electrical contact, and to prevent gas leaks.
Output Voltage Polarity
The design of the Weldmatic 270 allows
selection of the output voltage polarity.
Positive Wire
G.M.A.W. with solid consumable wires is
carried out with the work piece Negative
and the welding wire Positive.
To setup for this condition, connect the
‘WORK’ lead plug into the (-) output socket
on the Power Source, and the ‘WELDING’
lead from the wirefeeder into the (+) socket
on the Power Source, as in Figure 2
Negative Wire
Some ‘self-shielded’ flux cored
consumable wires are operated with the
work piece Positive and the consumable
wire Negative. Refer to the manufacturers
data for the particular consumable wire to
be used.
Fig 2 Positive Wire
To wirefeeder To work clamp
Fig 3 Negative Wire
To wirefeederTo work clamp

Weldmatic 270 | Operator Manual | Model No CP146-2
1312
6 NORMAL WELDING SEQUENCE
Weld Start
Closing the welding gun switch initiates this
sequence of events:
– The gas valve is energised and gas flow
commences and continues for any
pre-gas time set
– The power source contactor function
is initiated. Welding voltage is applied
between the work piece and the
consumable wire
– The wire drive motor is energised
– The wire touches the work piece, and
the arc is established.
Weld End
Releasing the gun switch initiates this
sequence of events:
– The wire drive motor is de-energised,
and is dynamically braked to a stop
– After a short pre-set period, known as
the ‘burn-back’ time, the Power-source
contactor function is released. This
period ensures that the consumable
wire does not ‘freeze’ in the weld pool
– At the completion of any post-gas time
set, the gas valve is de-energised and
the flow of shielding gas ceases.
7 BASIC WELDING INFORMATION
Choice of Shielding Gas
The choice of shielding gas is largely
determined by the consumable wire to
be used. Many proprietary shielding gas
mixtures are available.
The recommended shielding gases for use
with the Weldmatic 270 are:
– Mild Steel: Argon + 5 to 25%
Carbon Dioxide;
100% CO2
– Aluminium: Argon;
– Stainless Steel: Argon + 1 to 2%
Oxygen.
Consult your gas supplier if more specific
information is required.
Shielding Gas Flow Rate
In G.M.A. welding, one function of the
shielding gas is to protect the molten weld
pool from the effects of oxygen in the
atmosphere. Without this protection the
weld deposit becomes ‘honeycombed’ in
appearance, an effect which is described
as weld porosity.
In draft-free conditions the gas flow rate
required to give adequate protection is
typically 10-12 litres/min. In situations
where drafts cannot be avoided, it may
be necessary to increase this rate up to
20litres/min, and/or to provide screening
of the work area.
Weld porosity can also be caused by
air entering the gas stream through a
damaged hose, loose gas connection, or
from restriction in the nozzle, such as from
excess build-up of spatter.
When welding aluminium, particular care
must be taken with all aspects of shielding
gas delivery and workpiece preparation in
order to avoid weld porosity.

1312
Establishing a Weld Setting
Once the consumable wire type, wire size
and shielding gas have been chosen, the
two variables that are adjusted in order to
obtain a the desired weld setting are;
– Wirefeed speed,
– Welding arc voltage.
The wirefeed speed determines the
welding current; increasing the speed
increases the current, and decreasing it
decreases current.
The selected wirefeed speed must be
matched with sufficient arc voltage; a speed
increase requires an increase of arc voltage.
If the voltage is too low the wire will stub
and stutter, and there will not be a steady
arc. If the voltage is too high the arc will
be long with metal transfer occurring as a
series of large droplets.
Important: Do not operate the Voltage
Control switches during welding.
The weld setting should be chosen to suit
the application and the thickness of the
metal to be welded. It is important to check
that the deposited weld provides sufficient
strength to suit the application.
A “good” weld will have the characteristics
illustrated in Figure 4. The weld has penetrated
into the parent metal, fusing the root of the
joint where the two plates meet, and the
weld blends smoothly into the side walls.
A “bad” weld is shown in Figure 5. The weld
has not penetrated the joint root, and there
is poor side wall fusion. This lack of fusion
would normally be corrected by increasing
the arc voltage, or by increasing both
wirefeed speed and arc voltage to achieve
a higher current weld setting.
Fig 5 “Bad” Weld
Fig 4 “Good” Weld

Weldmatic 270 | Operator Manual | Model No CP146-2
1514
8 GENERAL MAINTENANCE
Before removing the power
source covers, ENSURE that the
equipment is disconnected from
the mains power supply. When the
equipment is energised LETHAL
VOLTAGES are present on the
electrical components enclosed.
Dust
Care should be taken to prevent excessive
build-up of dust and dirt within the welding
power source. It is recommended that
at regular intervals, according to the
prevailing conditions, the equipment
covers be removed and any accumulated
dust be removed by the use of a dry, low
pressure compressed air, or a vacuum
cleaner. The machine should be blown
out with compressed air at least every 12
months as grinding dust can settle on PCB
componentry causing failure. Failure to
maintain machines may void warranty.
Wirefeed
In order to obtain the most satisfactory
welding results from the G.M.A.W. process,
the wirefeed must be smooth and constant.
Most causes of erratic wirefeed can be
cured by basic maintenance. Check the
General Maintenance section of the
Wirefeeder Operators Manual for more
details.
Gun Position
For “down hand” fillet welding, the gun is
normally positioned as shown in Figure 6
below with the nozzle end pointing in the
direction of travel.
Fig 6 Gun Position

1514
9 EXTERNAL TROUBLE SHOOTING
If you are in Australia and
the following checks do not
identify the fault condition, the
equipment should be returned
to a WIA Service agent. Phone
1300300884 for details of your
nearest service agent.
If you are in New Zealand and the
following checks do not identify
the fault condition, the equipment
should be returned to the original
place of purchase with proof of
purchase, or contact Weldwell on
06 8341 600.

Weldmatic 270 | Operator Manual | Model No CP146-2
1716
10 TROUBLE SHOOTING CHART
Problem Likely Reason Outcome
All Transformer Models
No welding current,
no display.
The machine is not turned on
at both the mains supply and
the machine power switch.
If confirmed that the
machine is switched on
correctly, test the same
outlet using a known
serviceable appliance.
Mains Circuit breaker
nuisance tripping during
welding.
Mains Circuit breaker
inadequately rated, or duty
cycle exceeded.
The circuit breaker may be
rated for Ieff (effective current).
If Weld output is greater
than the 100% rating the
machine will require mains
current higher than Ieff
The duty cycle should be
observed and understood.
Machine continually cuts
out on thermal overload
The machine duty cycle has
been exceeded.
Leave the machine
energized, with the fan
running until the machine
has cooled sufficiently.
The duty cycle should be
observed and understood.
No welding current,
but display on.
The connections may not be
made securely.
Ensure all connections are in
position and securely made.
Machine gives poor
quality weld.
The polarity of the electrode/
return cables is incorrect.
The return lead contacts, or
workbench surface requires
cleaning.
Polarity should be confirmed
for the process/wire type in
use.
The return lead contacts
and connections should be
inspected and cleaned, and
the workbench cleared of
waste materials.
Machine works fine on
mains power but does not
work when connected to a
generator.
Machine works fine on
mains power but does not
work when connected with
extension lead.
Generator cannot provide
high peak cycle currents for
inverter
Extension leads creating
additional resistance, and
voltage drop
Use larger kVA generator or
sometimes a different band
generator will work.
Use larger cable size, and
keep extension lead as
short as possible.

1716
Problem Likely Reason Outcome
GMAW/MIG Models
The machine feeds slowly
and then speeds up after
3-5 seconds.
Creep mode is selected, or
machine has a permanent
creep mode function.
Some models have a creep
mode function that cannot
be adjusted. Other models
have a push button selection
for creep mode on/off.
Nothing happens for
first x seconds after
trigger is pulled.
Pre gas is selected to x
seconds.
Allow for Pre Gas time, or
adjust time.
The arc starts normally
but then stops x seconds.
Spot time is selected to x
seconds.
Spot time selection should
be adjusted to 0 seconds.
The arc does not stop
after trigger is released.
Latch mode is selected. Latch mode should be
switched off.
Motor continues to run
once arc is extinguished.
Latch mode is selected. Latch mode should be
switched off.
Weld is contaminated with
small bubbles (presence
of porosity).
Air in the gas hose. The
torch gas hose has not been
purged sufficiently.
The gas hose is not securely
connected at the machine or
at the regulator.
Air is being drawn into arc
through torch nozzle
Purge the system and
confirm sufficient gas flow
through the regulator.
Ensure the gas connections
from regulator through to the
torch connection are suf-
ficiently tightened.
Remove nozzle, check
O ring on torch head,
check condition of
insulator in nozzle
Wire feed stutters and
arc is erratic. Also, motor
turns correctly under
no load.
Torch consumables are
blocked/partially blocked.
Rusty MIG wire.
Liners and contact tips
are consumable and
wear over time.
Replace the torch liner and
reduce wire feed tension.
Presence of porosity
at weld start.
The torch gas hose has not
been purged sufficiently.
Purge the system and
confirm sufficient gas flow
through the regulator.

Weldmatic 270 | Operator Manual | Model No CP146-2
1918
11 CIRCUIT DIAGRAMS - POWER SOURCE
Fig 7 Power Source Circuit Diagram

1918
12 ASSEMBLY AND PARTS LIST - WELDMATIC 270 POWER SOURCE
Fig 8 Weldmatic 270 Power Source Assembly
18
20
22
26
24
25
23
19
15
13
12
6
4
16
11
17
14
5
7
8
3
21
9
10
21

Weldmatic 270 | Operator Manual | Model No CP146-2
2120
Item # Part # Description Qty
1 WHL002 Wheel, Rubber, Castor 2
2 PAN094 Base 1
3 WHL003 Wheel, Rubber, Fixed 2
4 E0053 Control Socket, 3 Pin 1
5 PAN097 Side Panel 2
6 E0042 Switch, Standby/Operate 1
7 MR231554 Handle Left 1
8 PAN096 Top Panel 1
9 PAN092 Front Panel 1
10 MR231553 Handle Right 1
11 E0055 Switch, Coarse, 4 Position 1
12 E0054 Switch, Fine, 4 Position 1
13 TC265 5/8” UNF Nipple 1
14 TC266 5/8” UNF Nut 1
15 CX58 Socket, Dinse 2
16 E0024 Circuit Breaker, 5 Amp 1
17 MR230304 Plastic Front 1
18 PWA010 Fan On Demand PCB 1
19 L0022 Control Transformer 1
20 D0031 Rectifier 1
21 E0056 Thermostat 1
22 IND029 Inductance Assembly 1
E0057 Thermal Overload (included with
Inductance Assembly)
1
23 TFM061 Welding Transformer Assembly, Wired 1
24 FAN008 Fan Assembly 1
25 EO058 Contactor 1
26 PAN095 Back Panel 1
Not Shown R0028 Fan On Demand Thermistor 2
WELDMATIC 270 PARTS LIST