ExpressWeld Inverter 251-ULTRA User manual

www.askaynak.com.tr
Expressweld Model : Inverter 251-ULTRA
MMA Arc Welding Machine
USER MANUAL
MMA Arc Welding Machine
Phase
Welding Method and Specifications
380V - 3Ph 2.5 - 5 mm

Safety in Welding
General Features
Installation and Operator Instructions
Preparation for Operation
Maintenance and Troubleshooting
Electromagnetic Compatibility
Efficient Use of Machine In Terms of Power Consumption
Accessories Given With Machine
Transportation and Storage Conditions
Expiry of Machine's Physical Life
Unpacking
Electrical Connection Diagram
3 - 4
5
6
7 - 9
10 - 14
15 - 16
16
16
17
17
17
20 - 21
Table of Contents
December 2014
Physical life determined by Ministry of Industry and Trade is 10 years.
(This is the period for providing spare parts required for the machine to operate.)
Kaynak Tekniği Sanayi ve Ticaret A.Ş.
TOSB Otomotiv Yan Sanayi İhtisas Organize Sanayi Bölgesi
2. Cadde, No: 5, Şekerpınar 41480 Çayırova, KOCAELİ
Phone: (0262) 679 78 00 Fax: (0262) 679 77 00
www.askaynak.com.tr
MANUFACTURER
Manufactured in People's Republic of China by KAYNAK
TEKNİĞİ SANAYİ ve TİCARET A.Ş.
Spare Parts 18 - 19

"Expressweld"
is the registered trademark of Kaynak Tekniği
Sanayi ve Ticaret A.Ş.

Only qualified personnel should use this machine. Be sure that all installation, operation,
maintenance and repair procedures are performed only by qualified person. Before operating the
machine read and understand the operation manual. Failure to observe instructions stated in this
manual may cause serious personal injury, death and damage the machine. Please read the
cautions stated with above symbols. Kaynak Teknigi Sanayi ve Ticaret A.S. is not responsible for
damages caused by improper installation, improper storage or abnormal operation.
WARNING: This symbol indicates that instructions must be followed to avoid serious
personal injury, loss of life or damage to this equipment. Protect yourself and others.
READ and UNDERSTAND INSTRUCTIONS: Read and understand this manual
before operating this equipment. Failure to follow the instructions in this manual may
cause serious personal injury, loss of life, or damage to this equipment.
ELECTRIC SHOCK MAY KILL: Welding machine produces high voltage that may be
harmful for human health. Do not touch the electrode, ground connection or electrically hot
parts while machine is operating. Isolate yourself against electrode, ground connection or
work piece. Since the risk of electrical shock exists, do not touch the metal ends of the plug
after it has been removed from the power.
FUMES and GASES MAY BE DANGEROUS: Welding operation produce fumes and gases
hazardous to health. To protect the users from this danger, there should be enough
ventilation or fumes and gases should be thrown away from the breathing zone.
WELDING ARC MAY BURN: Proper mask, filter and protective glass should be used to
protect your eyes from sparks and the rays of the arc when welding or observing. Skin
should be protected with flame-proof clothing. Protect nearby personnel with suitable, non-
flammable screening and warn them not to watch the welding arc or expose themselves to
the arc rays.
WELDING SPARKS MAY CAUSE FIRE or EXPLOSION : Keep the flammable materials
away from the welding area and put the fire extinguisher on an easily accessible place.
Remember that welding sparks and hot materials from welding can easily go through small
cracks and the most tight openings to adjacent areas. Do not weld on any jerrycan, barrel,
tank or material if you are not sure that precautions were taken to avoid flammable and
poisonous gasses totally from the environment. Never operate this equipment when
flammable gases, vapors or liquid combustibles are present.
3
Safety in Welding - 1
This machine has been designed for arc welding with shielded metals.
Cannot be used for any other purpose.

ELECTRICALLY POWERED EQUIPMENT: Turn off input power using the switch at the fuse
box before working on the equipment. Electrical connections should be performed
adequate to the obligated rules.
GROUNDING: For your safety and trouble-free operation, electrical supply cables should
be connected to a proper grounded receptacle.
ELECTRICALLY POWERED EQUIPMENT: Check the conditions of electrode cables,
supply cables and the cables connected to the machine regularly. If you face an improper
condition, replace the defective parts with the new ones immediately. In order to prevent the
risk of arc explosion and fire, do not leave the electrode holder directly on the welding table
or on a surface that is contacting with the work clamp.
ELECTRIC and MAGNETIC FIELDS MAY BE DANGEROUS TO HUMAN HEALTH:
Electric that flows through conducters, produces electromagnetic field. This
electromagnetic field can be effective on devices like pacemakers. Users who have a
pacemaker must refer to a physiotherapist before operating the machine.
GAS CYLINDER MAY EXPLODE: Only use the compressed gas cylinders that contain
protective gas which is adequate for welding processes. Be sure that adequate regulators
for the gas and cylinder are correctly mounted on the cylinder. Always keep cylinders in an
upright position and securely chained to a fixed support. Do not change the places of the
cylinders before closing the protective covers. Avoid contact between electrodes, electrode
holders, work clamps and electrical parts with the gas cylinder. Stockpile the cylinders at a
distance from the areas that is called heat and spark producing.
WELDED MATERIAL MAY BURN: Welding generates a large amount of heat. Hot surfaces
and materials can cause serious burns. Gloves should be worn while touching and carrying
this type of materials.
SAFETY MARK: This machine is suitable for supplying power for welding operations carried
out in an environment with increased hazard of electric shock.
4
Safety in Welding - 2

1 - High quality welding with proper DC current,
2 - Stabile welding arc,
3 - Easy controlling of molten welding puddle,
4 - Easy electrode ignition with high open circuit voltage,
5 - Application area width,
6 - Lightness,
7 - Easy installation and operating,
7 - 2 (two) years limited spare part warranty as of purchase date.
5
General Features
Input Power
Input Voltage
380 V ± % 10 / 3 Phase
Mains Supply
13 kVA (at 35% duty cycle)
Frequency
50/60 Hertz (Hz)
Welding Current Output Rates
Duty Cycle
(10 minutes period)
% 35
% 60
% 100
Output Current
(Amper)
250 A
190 A
150 A
Output Voltage
(Volt)
30.0 V (DC)
27.6 V (DC)
26.0 V (DC)
Output Range
Welding Current Range
10 - 250 A
Maximum Open Circuit Voltage
80 V (DC)
Physical Dimensions
Height
440 mm
Width
240 mm
Length
500 mm
Weight
21.5 kg
Operation Temperature between - 10°C and + 40°C
Insulation Class: H
Degree of Contamination: 3
Supply Cable: 4 x 2.5 mm²
Power Factor (cos ): 0.68
EXPRESSWELD Inverter 251-ULTRA, is an inverter welding machine which is manufactured by using the
latest inverter technology and inverter arc welding power units is a technology that has been emerged as of
1980s in international market. 50Hz/60Hz frequency is converted to 20 KHz and higher, in other words to high
frequency by IGBTs, and then alternating current (AC) in converted to direct current (DC) by decreasing the
voltage, in inverter technology a powerful DC welding current is produced by using PWM technique, thanks to
inverter technology, dimensions and weight of the welding machine has been decreased significantly and its
productivity has been increased 30%. Issues like stabile arc creation, safety, lightness and energy saving are
the most important features of welding machines manufactured by using inverter technology. Development of
inverter welding machines is characterized as a revolution in welding field by the experts.
Advantages provided by EXPRESSWELD Inverter 251 ULTRA welding machine:

Read this entire section before installation or operation of the machine.
Location and Environment:
However, it is important that simple preventative measures are followed to assure long life and
reliable operation.
1 - Do not put or operate the machine on a surface that is inclined above 15°.
2 - The machine must be operated in an environment with fresh air flow and there musn't be any
factor that blocks or stops the ventilation or fresh air flow. The machine shouldn't be covered
with paper or similar things while operating.
3 - Dust and dirt may get into the machine. This condition should be minimized. Do not work in
environments that contain dense dust, grinding dust, corrosive gases and in atmospheres with
water, paint or oil particles.
4 - This machine is IP21S protection class. Keep it dry when possible and do not place it on wet
ground or in puddles.
5 - This machine is designed for indoor use. Never operate the welding machine under sunlight
and when there is a possibility of water splattering.
6 - Put the machine away from radio controlled devices. Normal operation may adversely affect
the operation of this type of devices, which may result in injury or equipment damage. Read the
electromagnetic accordance section in this manual.
7 - Do not operate this machine in ambient temperatures of less than -10°C and over +40°C and
80% humidity.
8 - If people who are unqualified about electrical equipments, opens the work cover and interfere
with the machine, they may face life threatining conditions. People who behave otherwise is
considered to accept the negative results.
9 - This welding machine is designed for light welding processes performed by using 2.50
and 3.20 mm diameter rutile and basic type stick electrodes.
Machine is protected from overheating by its thermal protection. When this protection is enabled the warning
light on the front panel lits. When you return to the safe operating temperature the light turns off and you may
continue welding.
6
Installation and Operator Instructions
Duty Cycle and Overheating:
Operation efficiency is the percentage rate of welder's welding ability at given welding current for 10 minutes
without any brake and without overheating.

7
FRONT PANEL
1
2
37
45
6
8
Preparation for Operation -1
Input Cable Connection / Controller and Usage Features:
CONTROL UNITS OF FRONT AND REAR PANELS:
Before starting the machine, check input voltage, phases and frequency. Input voltage values to be used are
determined in “Specifications” sections of the user manual and in the plate located on the machine. Make
sure that the grounding of the cables connecting the machine to mains supply are suitable and sufficient
amount of current for normal operation of the machine can be supplied. Should be connected to yellow-
green cable grounding circuit.
1 - This machine has been designed as to work with 3 phase, 380 V (AC) and 50-60 Hz supply
voltage. It should only be operated on 3-phase and grounded systems.
2 - Never perform a mains supply connection and start the machine until there is a good protective
ground connection approved by a qualified electrician. Electric leakages constitute death risk for
human health.
3 - Machine has high/low voltage protection. If mains voltage is outside ±10%, thermal protection
lamp lights on and output current cuts of.

8
Preparation -2for Operation
REAR PANEL
10
9
1 - Power Indicator Lamp: Indicates that the machine is active.
2 - Welding Current Adjusting Knob: Adjusts machine's output current (welding ampere).
3 - Digital Ammeter: Indicates machine's output current value.
4 - Positive (+) Connector: Positive (+) output connection for welding current.
5 - Negative (-) Connector: Negative (-) output connection for welding current.
6 - Hot-Start: Temporarily increases the welding current before starting to welding operation. This feature
enables welding arc to ignite easily and smoothly. Hot-Start value can be adjusted from front panel
manually.
7 - Arc-Force: Increases welding current temporarily during welding operation. This temporarily increase in
the welding current facilitates the transfer between welding electrode and melted welding puddle. Short
arc length prevents sticking by causing high arc force. Arc-Force value can be adjusted from front panel
manually.
8 - Overload / Overheating Warning Lamp: This lamp lights on in case machine cannot provide output
current due to overheating of the machine. This occurs when ambient temperature is above and when
machine's run time ratio (operation efficiency) is exceeded. Let the machine cool down at on condition.
When the lamp turns off, machine is ready for usage.
9 - On/Off Switch: Controls the input of supply current to the machine.
10 - Energy Input Cable: Supply cable that will be used for machine's mains connection.
Stick Electrode Welding:
Before starting to welding operation, following procedures should be performed:
1 - First of all determine which pole is proper for the electrode being used. You can find this information in
the electrode information sheet. Then connect welding cables to the outlets as suitable for the chosen
pole. For example if DC (+) will be used, connect electrode cable to the (+) outlet (4) of the machine and
grounding clamp to the (-) outlet (5). After inserting connector to its socket as its guide pin will be at the
top, turn clockwise in 1/4 tour.

9
Preparation -3for Operation
Make sure that the connector fits in its socket safely without tightening too much. Otherwise, in long time
usages and in cases where the welding current is high, loosen connectors may burn due to overheating.
For electrodes to be used in DC (-), change cable connections as electrode cable to (-) outlet (5) and
grounding clamp to (+) outlet (4). Choosing wrong pole causes unstable arc creation, too much splashing
and electrode to stick on work piece.
2 - Install electrode to electrode clamp.
3 - Connect work clamp to the surface of the work piece which is unpainted, rustless and clean as its ends
contact completely.
4 - Insert mains connection cable to suitable plug.
5 - Before starting to welding operation, perform the following checks:
a - Make sure that the welding machine is grounded safely.
b - Make sure that all contact surfaces, especially the connection between clamp on the tip of work
cable and work piece are performed firmly.
c - Check whether welding cables connected correctly.
d - Splashed pieces and sparks during welding operation may cause fire. Therefore pay attention not
to keep flammable material within the area where welding operation is performed.
6 - Turn on the On/Off switch (9).
7- Adjust suitable welding current value which will be determined according to electrode diameter, type,
welding position and electrode information sheet, with “Welding Current Adjusting Knob (2)”. Generally
welding current is between the specified values. It is useful to adjust welding current according to the
values specified in catalog of manufacturer company of the shielded welding electrode.
Expressweld Inverter 251-Ultra is a descending characterized welding machine for melting stick
welding electrodes in 2.5 and 4.0 mm diameter having rutile and basic characterized shielding.
Current Values for Rutile and Basic Electrodes:
0 2.5 mm : 70 - 100A
0 3.2 mm : 100 - 140A
0 4.0 mm : 140 - 190A
You can check the adjusted welding current value by observing from the digital indicator located on the front
panel, when necessary you can fine tune according to welding situation.
8 - Start welding by following welding rules.

DAILY MAINTENANCE
Observe that whether the current potentiometer on the front panel and the on-off switch on
the rear panel are put correctly and working well. If they are not fixed well, contact to technical
service.
Observe if there is any strange sound, smell or vibration when machine is working. If there is,
try to find the cause, if you can’t find, contact to technical service.
Be sure that the welding current is the same with the adjust value. If the current is not the
same, adjust and calibrate it.
Be sure that the fan works well. If fan doesn’t work even the machine is very hot, check
whether there is something blocked in the blade. If the fan is broken, contact to the technical
service.
Check if the welding connectors are loose or overheated. If there is a problem, connectors
must be tightened or replaced.
Check if the insulation of the welding cables are defected. If they are defected, insulate the
part with an appropriate material or replace the cable.
MONTHLY MAINTENANCE
The dust that is accumulated inside the welding machine should be cleaned by pressured
air. If the machine is used in an environment which contains too much dust and fume,this
procedure should be performed twice a month. To protect small parts, be careful about
the air pressure while cleaning
Check the screws on the machine, loose ones must be tightened. If any screw is missing
put a new one. Replace the rusty screws.
QUARTER YEARLY MAINTENANCE
Check whether the actual welding current is the same with the displaying value. You can
measure the current with clampmeter
Maintenance & Troubleshooting - 1
In order to work the welding machine with high efficiency and in safe, periodical maintenance is
required. The operator is supposed to understand the maintenance procedures, to be used to
machine, to be able to make basic controls by self, and eliminate the operator mistakes.
Maintenance details are given below.
Warning : Machine must be unplugged from the mains supply during maintenance.
10

This machine is checked aginst any kind of problems before it is dispatched from the factory.
That’s why don’t let anyone who is not authorized by our company to change any equipment.
Maintenance & troubleshooting must be performed by the technical services authorized by
Kaynak Tekniği Sanayi ve Ticaret A.Ş.
To protect small parts, be careful about the air pressure while cleaning.
Maintenance must be done very carefully. If any wire, cord gets flexible or misplaced, it may be
hazardous for the operator.
Avoid water or vapour getting inside the welding machine. If the machine is effected by
humidity, it should be dried up and its isolation should be checked.
If the welding machine won't be used for extended periods, it should be placed inside the
plastic package and kept in a dry environment.
When lifting, the welding machine shouldn't be thrown randomly and be protected from blows.
1 -
2 -
3 -
4 -
5 -
6 -
7 -
Fuse trips while
the machine's main
switch is open.
Input filter board is
defective.
Refer to the service.
Machine doesn't work,
There is no output,
Fan doesn't work.
No electricity on the
line.
Check the phases' voltage which enters
the machine. Reconnect the phases.
Main input cable is
defective.
Check the main input cable. Replace
with a new one if it is necessary.
On/Off switch is
defective.
Replace the button. Contact to the service
if necessary.
Input filter or power
board is defective.
Contact to the service.
TROUBLE POSSIBLE ERROR SOLUTION
Caution! For every kind of maintenance and repair operations, contact to the nearest authorized Kaynak
Teknigi Sanayi ve Ticaret A.S. technical service. Maintenance or repairs performed by unauthorized
technical services or personnel will void the manufacturer’s warranty.
11
Maintenance and Troubleshooting - 2
THREE-MONTH MAINTENANCE
Check if the actual current value is same with the current value set with potentiometer. Actual
current value is measured with clamp meter.

12
PROBLEM POSSIBLE PROBLEM SOLUTION
Maintenance and Troubleshooting - 3
Machine vibrates. Machine is not located
on a stabile and straight Place the machine on a stabile and
straight surface.
An abnormal noise and
smell comes from the There is problem in
cooling fan.
Check the cooling fan.
If necessary, contact service.
There is free voltage There is problem in the Contact service.
There is no current
output in welding.
Welding cable is not
connected to the outlets
on the machine.
Connect welding cable to the outlets
on the machine.
Welding cable is
damaged.
Change the welding cable.
Work cable is not
connected or loosen.
Check the work cable, connect if not.
Arc does not start or
electrodes stick to
workpiece.
Connections are loose
or not good.
Check the connections.
Work piece is dirty, oily
or there is too much
dust on it.
Check the surface of work piece,
clean if necessary.
Arc is not stabile,
welding cannot be
performed smoothly.
Pole connections are
wrong or weak.
Change the poles as to be correct
and tighten the connections.
Voltage value is not
suitable.
Is mains voltage 380 Volt?
Do you use an extension cord whose
length and section is not suitable?
Check. Correct if necessary.
On/Off switch is faulty. Change the switch. If necessary,
contact service.
Input filter and/or power
card are faulty.
Contact service.
Machine does not
operate, there is no
output, fan does not
operate (continue).
surface.
machine.
output. machine.

13
There is arc blow. Air flow is too strong. Use protecting screen against
air flow.
There is problem in
welding electrode.
Adjust the angle between welding
electrode and work piece.
If there is eccentric problem in
welding electrode, change the
electrode.
Warning lamp lights. Overheating due to
usage of high welding
current or long time
operation.
Decrease welding current or shorten
the operation time by having a
break for welding operation.
Activation of over
current protection due
to abnormal current
created on main circuit.
Contact service.
There is magnetic
field affect.
Tilt the welding electrode to the
contrary direction of arc blow.
Change the location of work clamp or
place grounding cable on both sides
of work piece.
Use short arc distance.
Welding current cannot
be set correctly.
Current adjusting
potentiometer on the
front panel is damaged
or doesn't operate
Contact service.
Welding current setting
is low.
Increase welding current value.
Penetration is not
Fuse trips when the
master switch of the Input filter card is faulty. Contact service.
Maintenance and Troubleshooting - 4
PROBLEM POSSIBLE PROBLEM SOLUTION
machine is on.
smoothly.
sufficient.

14
Fan operates but LED
doesn't light on.
When the machine
turns on, power
indicator lamp lights on,
but fan does not
Something get jammed
in fan blades.
Remove jammed piece.
Fan capacitor is faulty. Change the capacitor. If necessary,
contact service.
LED is faulty or
connection is weak.
Check LED connection, change if it
is faulty.
Control PCB is faulty. Contact service.
Fan is faulty. Change the fan.
If necessary, contact service.
Numbers are missing
on indicator screen.
Indicator is faulty. Contact service.
Welding current is not
same with adjusted
value.
Front control PCB is
faulty.
Contact service.
Maintenance and Troubleshooting - 5
PROBLEM POSSIBLE PROBLEM SOLUTION
operate.

After the power unit is "ON", to make the machine electrically stabilized, the welding operation should
be started after 5-10 seconds hold-on duration.
Check the electromagnetic immunity for equipment operating in or near the work area. The operator must be
sure that all equipment in the area is compatible. This may require additional protection measures.
15
Electromagnetic Compatibility - 1
While welding, do not turn on/off the power switch. This situation may cause voltage fluctuations in
mains as well as shorten the economic life of the machine.
Welding machine has been designed according to related norms and rules. In addition, it may cause safety
problem for the devices affected from electromagnetic waves since it may produce interfering electromagnetic
waves for telecommunication devices (telephone, radio, television) and safety equipments. To prevent and
eliminate the effect of these electromagnetic waves (interferences) produced by the machine, please read
below explanations carefully.
Welding machine has been intended to use in industrial fields. In case of using in living spaces, to eliminate
potential effects of electromagnetic waves it is necessary to use specific precautions. User should certainly
install and operate the machine as per the instructions included in the user guide. In case any electromagnetic
interference is detected, user should take necessary precautions for this. If necessary, Kaynak Tekniği Sanayi
ve Ticaret A.Ş. will help to the user in this matter. No modifications should be made on the machine without the
written consent of Kaynak Tekniği Sanayi ve Ticaret A.Ş.
Before the installation of the welding machine, user should check if there is any device in the working area that
may be affected due to electromagnetic waves. Some of these devices are stated below:
1 - Lead wires, control cables and phone cables near the working area and machine,
2 - Radio and/or television receivers and transmitters, telecommunication devices,
3 - Computers or computer controlled devices,
4 - Safety and control equipments for industrial processes,
5 - Personal medical devices such as pacemakers and hearing aids,
Electromagnetic fields may interfere with some pacemakers. Therefore welders having pacemakers
should contact with their physicians before welding process.
6- Calibration and measuring devices.

Accessories Given With Machine
Welding clamp and cable
Work connection clamp and cable
16
Electromagnetic Compatibility - 2
To reduce the effect and exposure level of electromagnetic waves produced by the machine, below warnings
should certainly taken into account:
1- Mains supply connection should be performed as explained in the user manual. If electromagnetic
interference occurs, it may be necessary to take some precautions like filtering the electric main.
2 - Lead wires (electrode and work cables) should be as short as possible and should be routed together.
Never wrap these cables around your body and stand between the cables and pay attention that the
cables are not on the grounded surfaces.
3 - Work cable should be connected to the piece being welded as close as possible.
4 - During the welding process, it should be stood away from the machine as far as possible.
5 - Insulation of cables within the working area may reduce the electromagnetic interference. This situation
may be necessary for some special applications.
6 - Work should not be performed near welding power unit.
7 - To reduce electromagnetic interference and increase work safety, ground the work piece if possible.
User should check if this grounding may cause problem for himself and for the machine.
8 - Ideal measurements of the working area should be determined based on the construction of this area
and other factors included.
9 - In case the machine used in environments having high electromagnetic fields, adjusted welding current
may change.
10 - To provide conformity with EN 61000-3-12 standard for this machine, it is the user's responsibility to
connect the machine to the mains with a suitable harmonic filter.
Efficient Use of Machine in Terms of Power Consumption
1 - Welding machine is designed and manufactured as to get low energy from mains while in the On
position.
2 - While welding to prevent over energy consumption, current values that are suitable for the electrode
diameter being used should be selected and current values higher than adequate should be avoided.

When it is not in use, to protect the machine from the dust and the other possible contaminants in the
environment, in its box. and particularly when transferring it for long distance, place the welding machine
Do not drop the machine and pay attention against the strong mechanical shocks.
17
Unpacking
Transportation and Storage Conditions
Expiry of Machine's Physical Life
When the economical life of the machine expired and cannot operate should not be disposed as domestic waste
and not thrown into waste. Welding machine should be disposed of as per local regulations.
EXPRESSWELD Inverter 251 ULTRA welding machine is sold in its cardboard box. Do not purchase the
machines without packaging. For unpacking the machine, open top cover of the box and take the machine out of
its nylon bag. Keep this nylon bag and box and use to transport or to store the machine in the future.

Spare Parts - 1
18

Spare Parts - 2
82U8253035
82U8301001
82U7732115-F
82U5496354-A
82U5496908-B
82U7202029
82U7202123
82U8068004
82U7232020
82U8307008
82U7720030
82U7463135
82U8051008
82U8055012
82U5496200-B
82U6185230
82U6271067
82U5496650-G
82U8306004
82U8069004
82U8305028
82U8065004
82U8050008
82U8103209
82U8103208
82U7458330-R
82U5496670-H
82U7461215-B
82U7411311
82U5422001
82U5496671-C
82U7231275
82U7425641
82U7421680
82U8751060
82U5496703-D
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
A-1
A-2
A-3
B
B-1
B-2
B-3
C-1
C-2
C-3
Part Number Part Description
No.
Handle
Machine Cover
Auxiliary Transformer
Control PCB
EMC kartı
Fuse Holder
Fuse
Rear Panel
Switch (CA20B A202 K&N 25A)
Rear Panel Asbly Plate
Fan
Capacitor
Right Side Panel
Base Panel
Output Absorb PCB
Main Transformer
Inductance
Front Control PCB
Front Control PCB Asbly Panel
Front Panel
Shield
Output Terminal Panel
Left Side Panel
Rear Panel Label
Front Panel Label
Arc Force/Hot Start Knob
Rectifier PCB
Electrolytic Capacitor
Rectifier Bridge
Inverter PCB Asbly w/ IGBT
Inverter PCB w/o IGBT
Thermal Switch
IGBT
Fast Recovery Diode
Mur Spacing Block
Mur PCB
Amount
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
6
2
1
1
1
6
2
2
2
19
Table of contents
Other ExpressWeld Welding System manuals
Popular Welding System manuals by other brands

ArcOne
ArcOne Inverter Power Sources User instruction manual

IGBT
IGBT BLUEARC 200STI owner's manual

Lincoln Electric
Lincoln Electric WELD-PAK 3200HD Operator's manual

EWM
EWM Tetrix 230 AC/DC Comfort 8P TM operating instructions

Lincoln
Lincoln Ranger 250 Operator's manual

Longevity
Longevity STICKWELD 140 operating manual