Ozito IMW-100 User manual

ON
THERMAL
OVERLOAD
ALLOW
WELDER
TO COOL
DOWN
!
100A INVERTER
MIG WELDER
VOLTAGE
MIN MAX
FEED RATE
MIN MAX
ON
THERMAL
OVERLOAD
ALLOW
WELDER
TOCOOL
DOWN
!
100A INVERTER
MIG WELDER
VOLTAGE
MIN MAX
FEEDRATE
MIN MAX
SELF SHIELDED
FLUX CORED
INVERTER
ARC WELDER
100A
INSTRUCTION MANUAL
SPECIFICATIONS
Mains Voltage: 240V ~ 50Hz
Welding Current: 30 - 100A (15.5 - 19V)
Welding Wire Size: 0.8 / 0.9mm (Flux-Cored)
Wire Feed Speeds: 1.6 - 5.0m/min
Max. Wire Spool Weight: 1kg
IP Rating: IP21S
Weight: 6.2kg
* Additional specifications provided under equipment
classification.
IMW-100
STANDARD EQUIPMENT
3 YEAR REPLACEMENT WARRANTY*
Your product is guaranteed for a period of 36 months from the original date of purchase. If
a product is defective it will be replaced in accordance with the terms of this warranty. Warranty
excludes consumable parts, for example: valve adapters and accessories.
*This product is intended for DIY use only and replacement warranty covers domestic use.
WARNING
The following actions will result in the warranty being void.
• If the tool has been operated on a supply voltage other than that specified on the tool.
• If the tool shows signs of damage or defects caused by or resulting from abuse, accidents
or alterations.
• Failure to perform maintenance as set out within the instruction manual.
• If the tool is disassembled or tampered with in any way.
• Professional, industrial or high frequency use.
WARRANTY
OZITO Australia/New Zealand (Head Office) 25 Fox Drive, Dandenong South, Victoria, Australia 3175.
ozito.com.au
Self Shielded Flux Cored Inverter
Arc Welder
0.9mm Torch Tip, Spare Shroud &
Chipping Hammer/Wire Brush
Handle, Welding Mask, Lens
Assembly & Fasteners
0321
IN ORDER TO MAKE A CLAIM UNDER THIS WARRANTY
YOU MUST RETURN THE PRODUCT TO YOUR NEAREST
BUNNINGS WAREHOUSE WITH YOUR BUNNINGS
REGISTER RECEIPT. PRIOR TO RETURNING YOUR
PRODUCT FOR WARRANTY PLEASE TELEPHONE OUR
CUSTOMER SERVICE HELPLINE:
Australia: 1800 069 486
New Zealand: 0508 069 486
The benefits provided under this warranty are in addition to other rights and remedies which
are available to you at law.
Our goods come with guarantees that cannot be excluded at law. You are entitled to a
replacement or refund for a major failure and for compensation for any other reasonably
foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the
goods fail to be of acceptable quality and the failure does not amount to a major failure.
Generally you will be responsible for all costs associated with a claim under this warranty,
however, where you have suffered any additional direct loss as a result of a defective product
you may be able to claim such expenses by contacting our customer service helpline above.
TO ENSURE A SPEEDY RESPONSE PLEASE HAVE
THE MODEL NUMBER AND DATE OF PURCHASE
AVAILABLE. A CUSTOMER SERVICE REPRESENTATIVE
WILL TAKE YOUR CALL AND ANSWER ANY QUESTIONS
YOU MAY HAVE RELATING TO THE WARRANTY POLICY
OR PROCEDURE.

I
0
AC 240V ~ 50Hz
OFF
ON
AC POWER
ON
THERMAL
OVERLOAD
ALLOW
WELDER
TO COOL
DOWN
!
100A INVERTER
MIG WELDER
VOLTAGE
MIN MAX
FEED RATE
MIN MAX
Safety Precautions
• Read all safety warnings and all instructions before use. Failure
to follow the warnings and instructions may result in electric
shock, fire and/or serious injury.
• Always wear appropriate protective equipment when welding.
These include: welding helmets, overalls, welding gloves, closed
shoes, leather apron, sock protectors. Overalls should be of the
type designed to be buttoned at the wrists and the neck.
• Remove loose clothing and accessories and ensure any loose
hair is tied up or tucked away.
• Toxic gases are given off during the welding process, which
may collect in the welding area. Always ensure to weld in a
well-ventilated area and use a fume extractor when required.
• The electric arc generated by the welding process gives direct
heat and ultraviolet radiation. It is essential that the eyes of
the operator and any bystanders are protected from the glare
during welding. ALWAYS use a face shield or welding helmets
fitted with the correct glass filter.
• Inspect the welder, welding torch and all connecting wires for
damage / worn insulation before each use and if any damage is
found, replace the damaged parts before use.
• Parts of the welding torch and welding material can be
extremely hot immediately after welding. Wait for the electrode
and the material to cool down before handling and always
ensure welding gloves are worn when handling hot materials.
WARNING! ENSURE ALL OIL, PETROL AND
FLAMMABLE CONTAINERS HAVE BEEN REMOVED
FROM THE WELDING AREA.
1. On/Off Switch
2. AC Power Cord
3. Power ON LED
4. Thermal Overload LED
5. Voltage Control Dial
6. Feed Rate Control Dial
7. Torch
8. Earth Clamp
9. Torch Tip
10. Torch Shroud
SELF SHIELDED FLUX CORED INVERTER ARC WELDER
KNOW YOUR PRODUCT
1. BEFORE STARTING
SETUP & PREPARATION
4
8
3
7
1
10
9
2
5
6
ONLINE MANUAL
Scan this QR Code with your mobile
device to take you to the online manual.

Installing A Wire Spool
The welder can be fitted with 0.8mm or 0.9mm gasless welding
wire. Welding wire up to 1kg can be fitted to this welder.
1. Push the latch towards the back of the
welder unit and lift the top cover.
2. Undo the spool nut then
remove the spring and spool
plate.
Note: Before first use, be sure to
remove all the packaging from
the included wire spool.
WARNING! DO NOT PULL THE END OF THE WIRE FREE
UNTIL YOU ARE READY TO THREAD THE MACHINE. THE
SPOOL IS COILED UNDER TENSION AND WILL UNWIND
IF RELEASED WHICH MAY CAUSE TANGLING & WIRE
FEED ISSUES DURING USE.
3. Place the spool onto the
spindle so that the wire
unwinds in an anti-clockwise
direction.
4. Replace the spool plate and
spring, then lock it in place
with the spool nut.
5. Flip the tension adjustor bar
up and swing the pressure
arm away from the roller
guide.
6. While maintaining a firm hold
of the wire end, pull it free of
the spool and thread it through
the feed tube and into the
cable housing.
7. Rotate the pressure arm back
into place and flip the tension
adjustor bar back to lock it in
place.
Assembling The Welding Mask
The included welding mask must be fitted with the lens assembly
and handle before using it for welding.
1. Push the plastic pins into the
mask from the outside and
secure it with the retaining
clips from the inside of the
mask. Rotate the retaining
clips so that the lens assembly
can be inserted.
2. Insert the clear glass into the
recess of the welding mask,
then the dark safety glass and
finally the plastic lens frame.
3. Rotate the retaining clips to
lock the lens assembly in
place.
4. Bend the sides and top of the
welding mask inwards and
clip it together at the corners.
5. Insert the 3 screws into the
handle mounting holes from
the outside. Fit the handle onto
the screws on the inside of the
mask and secure them using
the 3 nuts.
2. ASSEMBLY 3. SETTING UP THE WELDING WIRE
WARNING! ENSURE THE TOOL IS TURNED OFF AND
DISCONNECTED FROM THE POWER SUPPLY BEFORE
PERFORMING ANY OF THE FOLLOWING OPERATIONS.
WARNING! ALWAYS ENSURE THE WELDER IS
SWITCHED OFF WHEN REPLACING THE WELDING WIRE
&/OR MAKING ADJUSTMENTS TO THE WIRE DRIVE
SYSTEM.
a
b
a
b

Loading The Torch
1. Twist the shroud
clockwise and pull
it off the torch, then
unscrew the torch tip.
Note: The 0.8mm
torch tip is fitted by default. Swap it for the included 0.9mm tip if
different welding wire is used instead.
2. Place the earth clamp out of
the way, away from the torch
and welder unit on a non-
conductive surface such as a
wooden workbench.
WARNING! ENSURE THAT YOU DO NOT MAKE
CONTACT WITH THE EARTH CLAMP AT ANY STAGE
WHEN FEEDING THE WIRE THROUGH THE TORCH. THE
ELECTRODE WIRE WILL BE AT WELDING VOLTAGE
WHILST IT IS FED THROUGH. KEEP THE TORCH AWAY
FROM YOUR EYES & FACE.
3. Plug the power cord into a
power supply and flip the on/
off switch to the on position.
4. Ensure the torch lead is
straight as you depress
the trigger to feed the wire
through.
5. Once the wire protrudes from
the end of the torch, release
the trigger.
6. Hold the torch 2 to 3 inches away from a non-conductive hard
surface and depress the trigger.
If the wire stops against the
surface without bending,
switch off the welder and
tighten the feed tensioner
slightly by turning it clockwise.
7. The tension is correctly set if
the wire fed through the torch
bends when it encounters the
hard surface. Repeat step 6
until this happens.
8. Switch the welder off.
9. Fit the appropriate torch tip
by screwing it on clockwise.
Push and twist the shroud
clockwise as well to fit it on
the torch.
WARNING! ONLY USE THE 0.8MM TIP WITH 0.8MM
WELDING WIRE OR THE 0.9MM TIP WITH 0.9MM WIRE.
INCORRECT TIP USAGE CAN CAUSE SPOOLING ISSUES
& DAMAGE THE MACHINE.
10. Leave 10mm protruding from
the end of the torch and cut
off any excess welding wire.
Note: Do not cut the wire at an
angle. The end of the welding
wire should be flat and have no
burrs or sharp edges. File down
the end or cut it again if necessary.
WARNING! THE POWER SUPPLY FOR THIS PRODUCT
SHOULD BE PROTECTED BY A RESIDUAL CURRENT
DEVICE (RATED AT 30mA OR LESS). A RESIDUAL
CURRENT DEVICE REDUCES THE RISK OF ELECTRIC
SHOCK.
I
0
AC 240V ~ 50Hz
OFF
ON
AC POWER
ON
THERMAL
OVERLOAD
ALLOW
WELDER
TOCOOL
DOWN
!
100A INVERTER
MIG WELDER
VOLTAGE
MIN MAX
FEEDRATE
MIN MAX
0
I
AC 240V ~ 50Hz
OFF
ON
AC POWER

Welding Wire Settings Selection
There are many variables that you will need to take into account
when choosing your welding wire size and type. Below are some
of the factors that should be considered:
• Type & thickness of the material to be welded
• Position and type of welding joint
• Maximum welding capacity of your welder
• How much penetration will be required for strength
• Type of bead desired for the weld
• Whether you are using a shielding gas or not
WIRE
DIAMETER
SUGGESTED
SETTINGS
STEEL THICKNESS (MM)
1.2 1.5 2.0 3.0
0.8mm Voltage 1-2 2-3 4-6 7-10
Wire Speed 1-2 2-3 4-7 8-10
0.9mm Voltage - 1-2 3-6 7-10
Wire Speed - 4-5 5-6 6-7
Note: The above chart is only intended as a general guide. Proper
welding will also depend on how close the torch is held to the
material and the speed it is moved along the weld. Always test
new settings on a scrap piece of material first. Proper welding
takes good technique and practice.
Aluminium Welding
For aluminium welding, aluminium wire must be used. The
workpiece must be thorougly cleaned with a stainless steel wire
brush to remove oxides and impurities from the weld surface.
Depending on the thickness of the workpiece, it also may require
additional heat sinks to be attached to the workpiece. Ensure
proper tip-to-work distance to prevent wire burning back to the
contact tip.
4. CONTROLS
OPERATION
ON/Off Switch
The on/off switch is located on the rear of the welder.
1. Press the on/off switch into
the on position ‘I’ to switch
the unit on.
2. To switch the unit off, press the switch to the ‘0’ position.
Note: Check the rating of the circuit breaker on the supply
and other appliances connected to the circuit. The welder is a
high powered device and it is recommended that it is the only
appliance on the circuit to ensure it has enough power to operate.
Note: If a 15A circuit is available, it is recommended that the
welder be connected to this.
WARNING! DO NOT LEAVE THE SWITCH IN THE
ON POSITION WHEN THE UNIT IS NOT IN USE AS
THIS POSES THE RISK OF ELECTROCUTION OR
ACCIDENTS HAPPENING FOR THE NEXT USER.
Wire Feed Speed
The wire feed speed should be
adjusted to suit the application
and material being welded.
Refer to the Welding Wire
Settings Selection Table as a
guide.
Note: Always test settings on a
scrap piece of material first.
Variable Voltage
The voltage should be set
according to the application,
material being welded and wire
feed speed.
1. The voltage can be
increased or decreased by
turning the voltage control
dial.
0
I
AC 240V ~ 50Hz
OFF
ON
AC POWER
ON
THERMAL
OVERLOAD
ALLOW
WELDER
TO COOL
DOWN
!
100A INVERTER
MIG WELDER
VOLTAGE
MIN MAX
FEED RATE
MIN MAX
ON
THERMAL
OVERLOAD
ALLOW
WELDER
TO COOL
DOWN
!
100A INVERTER
MIG WELDER
VOLTAGE
MIN MAX
FEED RATE
MIN MAX
WARNING! ENSURE APPROVED PROTECTIVE
CLOTHING & A WELDING HELMET/MASK IS WORN AT
ALL TIMES TO PROTECT YOUR FACE & EYES FROM
ARC UV RADIATION & SPARKS.
IMW-100

Welding
1. Ensure that the workpiece is clamped down securely, is cleaned
and prepared for welding.
2. Attach the earth clamp to the
workpiece ensuring there is
good metal to metal contact.
Note: Prior to connecting
the earth clamp it may be
necessary to clean the surface of the work piece using the metal
brush. Clamp it where it will not be in the way. This clamp provides
an earth connection back to the welder.
3. Switch the welder on and position the
welding mask in front of your eyes.
4. Position the wire tip approximately 8mm
from the workpiece at a 20° angle from the
vertical in the direction of movement.
Note: Leaving a 10mm length of protruding
wire and holding the torch so that the wire
touches the workpiece is a good way to
estimate the proper placement.
5. Squeeze the torch trigger to start the
weld.
6. WELDING5. INDICATOR LEDS
200
8mm
0
I
AC 240V ~ 50Hz
OFF
ON
AC POWER
Power LED Light
1. The ON LED illuminates
when the power cord is
connected to a live mains
outlet and the on/off switch
is in the on position.
Note: The cooling fan will
operate when the unit is
switched on.
Thermal Overload Protection
All Welders have a feature called a duty cycle. Duty cycle on a
welder refers to the time in which the welder operates during
normal welding. A welder can only weld for a certain continuous
period of time before it requires to cool down.
If the internal components of the welder should become hot
the welder could overheat. If the welder overheats the Thermal
Overload Protection feature will automatically shut down the
welder.
THIS CAN OCCUR IN HEAVY USE AND DOES NOT INDICATE A
FAULT.
The Welder will cease to weld
and the Thermal Overload
LED light will turn on. This
LED indication light is just to
inform you that your welder is
becoming too hot and requires
a cool down to protect the
internal components of the
welder.
Do Not turn your welder Off as the welder has an internal cooling
fan and this will assist your welder to cool down quicker. Reducing
the cooling time will enable you to get back to your welding job
quicker.
Depending on how many Amps or how heavy the welding you are
doing the cooling time may take up to 10 minutes for your welder
cool down so you can return to your welding job.
Duty cycle % as referenced on the rating label are based on 10
minute intervals. For instance with a 20% duty cycle, one can weld
continuously for 2 minutes, but then must wait 8 minutes for the
welder to cool.
Lower current levels have longer duty cycles.
ON
THERMAL
OVERLOAD
ALLOW
WELDER
TO COOL
DOWN
!
100A INVERTER
MIG WELDER
VOLTAGE
MIN MAX
FEED RATE
MIN MAX
ON
THERMAL
OVERLOAD
ALLOW
WELDER
TO COOL
DOWN
!
100A INVERTER
MIG WELDER
VOLTAGE
MIN MAX
FEED RATE
MIN MAX
WARNING! IF THE WELDER OVERHEATS & THE
THERMAL OVERLOAD PROTECTION ENGAGES,
DO NOT TURN OFF THE WELDER AS THE FAN WILL
ASSIST IN SPEEDING UP THE COOLING TIME.
WARNING! ENSURE THE CLAMP & THE TORCH IS
AWAY FROM THE WELDING MATERIAL & PLACED
ON A NON-CONDUCTIVE SURFACE WHILE THE
OVERLOAD PROTECTION IS ENGAGED.

Welding Tips
Travel Speed
There are a range of welding movements used in welding.
Generally some form of zig-zag motion is used to ensure the arc
acts against both sheets to be welded.
The torch should be moved along at a smooth speed that will
give the size of run required. At the same time, the wire is fed
downwards to keep the correct welding distance at all times.
Excessive travel speeds lead to poor fusion and lack of penetration.
While too slow a rate of travel may damage the work piece and
can lead to burning a hole through the material.
Electricity
The electricity flows through the wire and will not leave the wire
unless it is near an earthed object. Electricity always finds the
fastest path to the earth. When the earth cable clamp is connected
to the metal work piece a direct earth connection is created back
to the welder. When the wire touches or is near the earthed work
piece when the trigger is squeezed, electricity flows through
the wire, the metal work piece and then through the earth cable
straight back to the welder.
7. TROUBLESHOOTING
Symptom Possible
Cause Suggested Solution
No Power
On/off
switch is off Check on/off switch is in the on position.
Power
supply fault
Test power supply with another product,
avoid using extension leads.
Circuit
breaker
tripped
Check the rating of the circuit breaker
on the supply and other appliances
connected to the circuit.
The welder is a high power device and
it is recommended that it is the only
appliance on the circuit to ensure it has
enough power to operate.
Difficulty
starting arc
Inadequate
earth clamp
connection
Check earth clamp has good connection
to material being welded. Surface for
clamp connections needs to be bare
metal, remove rust or paint.
Welding
technique
Hold torch at correct angle, practice on
scrap material.
Welder cuts
out
Thermal
overload
active
The thermal overload light will light up
and the welder will not operate until
cooled down and the light goes out. This
is normal in heavy welding, allow the unit
to cool down.
Sticking wire
Incorrect
settings
Increase voltage & wire feed speed to
recommended setting.
Coated
work piece Clean weld area to bare metal.
Incorrect
wire type/
size
Check that the wire type and size is
appropriate for the material being welded.
Excessive
welding wire
consumption
Welding
voltage too
high
Reduce voltage.
Wire size
too small for
material
Change to larger wire size.
WARNING! THE WELDER SHOULD ONLY BE SERVICED
BY QUALIFIED PERSONNEL.

DESCRIPTION OF SYMBOLS
Warning
Regulatory Compliance Mark
(RCM)
VVolts Hz Hertz
~
W
/min
Alternating Current Direct Current (DC)
ØDiameter U0Non-load voltage
U1Rated input voltage U2On-load voltage
I2Current rating
HInsulation grade
XLoad duration rate
IP Protection class SUsed in an environment that has
high risk of electric shock
Single phase AV power &
rated frequency Self shielded flux cored arc welding
Single phase transformer - rectifier
Wear coveralls
Do not operate in rain
Wear appropriate face shield
Wear close-toed shoes Wear welding gloves
I1max Rated maximum input current I1eff Maximum effective input current
Watts
Revolutions or reciprocations
per minute
Read Instruction Manual
Power tools that are no longer usable should not be disposed of with
household waste but in an environmentally friendly way. Please recycle
where facilities exist. Check with your local council authority for recycling
advice.
Recycling packaging reduces the need for landfill and raw materials.
Reuse of recycled material decreases pollution in the environment.
Please recycle packaging where facilities exist. Check with your local
council authority for recycling advice.
CARING FOR THE ENVIRONMENT
SPARE PARTS
Spare parts can be ordered from the Special Orders Desk at your
local Bunnings Warehouse.
For further information, or any parts not listed here, visit
www.ozito.com.au or contact Ozito Customer Service:
Australia 1800 069 486 New Zealand 0508 069 486
E-mail: [email protected]
EQUIPMENT CLASSIFICATION
Additional Specifications
Duty Cycle: 20% @100A (19V DC)
60% @58A (16.9V DC)
100% @45A (16.3V DC)
The duty cycle was determined at 40°C by simulation.
I1max: 15.0A
I1eff: 6.7A
Welder Characteristics: Constant Voltage-Flat Characteristic
Carrying Method: Strap
Cooling System: Fan Cooling
Heating tests were conducted at ambient temperature.
Power Cable: 3 x 1.5-2mm2
Welding Cable: 1 x 10mm2
Recommended External Fuse: 16A.
This product is classified as Group 2, Class A welding equipment.
• Group 2 - This product generates radio frequency energy in the
frequency range 9KHz to 400GHz.
• Class A - This product is intended for use in an industrial environment.
Caution: This equipment is not intended for use in residential
environments and may not provide adequate protection to radio
reception in such environments.

IMW-100
0321
SELF SHIELDED
FLUX CORED
INVERTER ARC
WELDER
100A
MAINTENANCE MANUAL
ON
THERMAL
OVERLOAD
ALLOW
WELDER
TO COOL
DOWN
!
100A INVERTER
MIG WELDER
VOLTAGE
MIN MAX
FEED RATE
MIN MAX

I
0
AC 240V ~ 50Hz
OFF
ON
AC POWER
2
KNOW YOUR PRODUCT
CONTENTS
Know Your Product ....................................................................................... Page 2
Electrical Safety ........................................................................................... Page 4
General Power Tool Safety Warnings ............................................................ Page 5
Welder Safety Warnings................................................................................ Page 7
Circuit Diagram ............................................................................................ Page 10
Maintenance ................................................................................................ Page 12
1
2
1. On/Off Switch
2. AC Power Cord
3. Power ON LED
4. Thermal Overload LED
5. Voltage Control Dial
6. Feed Rate Control Dial
7. Torch
8. Earth Clamp
9. Torch Shroud
10. Torch Tip
SELF SHIELDED FLUX CORED INVERTER ARC WELDER

ON
THERMAL
OVERLOAD
ALLOW
WELDER
TO COOL
DOWN
!
100A INVERTER
MIG WELDER
VOLTAGE
MIN MAX
FEED RATE
MIN MAX
3
4
8
3
7
10 9
5
6
ONLINE MANUAL
Scan this QR Code with your mobile
device to take you to the online manual.

4
ELECTRICAL SAFETY
WARNING! When using mains-powered tools, basic safety precautions, including the following,
should always be followed to reduce risk of fire, electric shock, personal injury and material
damage.
Read the whole manual carefully and make sure you know how to switch the tool off in an emergency,
before operating the tool.
Save these instructions and other documents supplied with this tool for future reference.
This tool has been designed for 230V and 240V only. Always check that the power supply corresponds
to the voltage on the rating plate.
Note: The supply of 230V and 240V on Ozito tools are interchangeable for Australia and New Zealand.
Using an Extension Lead
Always use an approved extension lead suitable for the power input of this tool. Before use, inspect
the extension lead for signs of damage, wear and ageing. Replace the extension lead if damaged or
defective.
When using an extension lead on a reel, always unwind the lead completely. Use of an extension lead
not suitable for the power input of the tool or which is damaged or defective may result in a risk of fire
and electric shock.
The power supply for this product must be protected by a residual current device (rated at 30mA or
less). A residual current device reduces the risk of electric shock.

5
GENERAL POWER TOOL SAFETY WARNINGS
WARNING! Read all safety warnings and all instructions. Failure to follow the warnings and
instructions may result in electric shock, fire and/or serious injury.
Save all warnings and instructions for future reference. The term “power tool” in the warnings
refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool.
1. Work area safety
a. Keep work area clean and well lit. Cluttered or dark areas invite accidents.
b. Do not operate power tools in explosive atmospheres, such as in the presence of flammable
liquids, gases or dust. Power tools create sparks which may ignite the dust or fumes.
c. Keep children and bystanders away while operating a power tool. Distractions can cause you to
lose control.
2. Electrical safety
a. Power tool plugs must match the outlet. Never modify the plug in any way. Do not use any
adapter plugs with earthed (grounded) power tools. Unmodified plugs and matching outlets will
reduce risk of electric shock.
b. Avoid body contact with earthed or grounded surfaces, such as pipes, radiators, ranges and
refrigerators. There is an increased risk of electric shock if your body is earthed or grounded.
c. Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the
risk of electric shock.
d. Do not abuse the cord. Never use the cord for carrying, pulling or unplugging the power tool.
Keep cord away from heat, oil, sharp edges or moving parts. Damaged or entangled cords
increase the risk of electric shock.
e. When operating a power tool outdoors, use an extension cord suitable for outdoor use. Use of a
cord suitable for outdoor use reduces the risk of electric shock.
3. Personal safety
a. Stay alert, watch what you are doing and use common sense when operating a power tool. Do
not use a power tool while you are tired or under the influence of drugs, alcohol or medication.
A moment of inattention while operating power tools may result in serious personal injury.
b.Use personal protective equipment. Always wear eye protection. Protective equipment such as
dust mask, non-skid safety shoes, hard hat, or hearing protection used for appropriate conditions will
reduce personal injuries.
c. Prevent unintentional starting. Ensure the switch is in the off-position before connecting to
power source and/or battery pack, picking up or carrying the tool. Carrying power tools with
your finger on the switch or energising power tools that have the switch on invites accidents.
d. Remove any adjusting key or wrench before turning the power tool on. A wrench or a key left
attached to a rotating part of the power tool may result in personal injury.
e. Do not overreach. Keep proper footing and balance at all times. This enables better control of the
power tool in unexpected situations.
f. Dress properly. Do not wear loose clothing or jewellery. Keep your hair, clothing and gloves

6
away from moving parts. Loose clothes, jewellery or long hair can be caught in moving parts.
g. If devices are provided for the connection of dust extraction and collection facilities, ensure
these are connected and properly used. Use of dust collection can reduce dust-related hazards.
h. Do not let familiarity gained from frequent use of tools allow you to become complacent
and ignore tool safety principles. A careless action can cause severe injury within a fraction of a
second.
4. Power tool use and care
a. Do not force the power tool. Use the correct power tool for your application. The correct power
tool will do the job better and safer at the rate for which it was designed.
b. Do not use the power tool if the switch does not turn it on and off. Any power tool that cannot be
controlled with the switch is dangerous and must be repaired.
c. Disconnect the plug from the power source and/or the battery pack from the power tool
before making any adjustments, changing accessories, or storing power tools. Such preventive
safety measures reduce the risk of starting the power tool accidentally.
d. Store idle power tools out of the reach of children and do not allow persons unfamiliar with
the power tool or these instructions to operate the power tool. Power tools are dangerous in the
hands of untrained users.
e. Maintain power tools. Check for misalignment or binding of moving parts, breakage of parts and
any other condition that may affect the power tool’s operation. If damaged, have the power tool
repaired before use. Many accidents are caused by poorly maintained power tools.
f. Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are
less likely to bind and are easier to control.
g. Use the power tool, accessories and tool bits etc. in accordance with these instructions,
taking into account the working conditions and the work to be performed. Use of the power tool
for operations different from those intended could result in a hazardous situation.
h. Keep handles and grasping surfaces dry, clean and free from oil and grease. Slippery handles
and grasping surfaces do not allow for safe handling and control of the tool in unexpected situations.
5. Service
a. Have your power tool serviced by a qualified repair person using only identical replacement
parts. This will ensure that the safety of the power tool is maintained.

7
WELDER SAFETY WARNINGS
WARNING! The appliance is not to be used by persons (including children) with reduced
physical, sensory or mental capabilities, or lack of experience and knowledge, unless
they have been given supervision or instruction.
Young children should be supervised to ensure that they do not play with the appliance.
Before connecting a tool to a power source (mains switch power point receptacle, outlet, etc.) be sure
that the voltage supply is the same as that specified on the nameplate of the tool. A power source
with a voltage greater than that specified for the tool can result in serious injury to the user, as well as
damage to the tool. If in doubt, do not plug in the tool. Using a power source with a voltage less than the
nameplate rating is harmful to the motor.
• Under no circumstances should the housing of the welder be opened.
• Never attempt to repair or modify the welder.
• Screen off the work place to protect others working nearby from UV rays.
• Do not use the welder in damp or wet conditions.
• Do not use the welder for pipe thawing.
• Do not use cables with worn insulation or loose connections.
• Disconnect from the power supply before replacing welding wire.
• Avoid direct contact with the welding circuit.
• Never pull on the welding leads or the power cord to move the welder.
• Ensure the welding materials are securely clamped down/fastened before welding.
• Always place welding torch and clamp on flat stable surface when not in use.
• Never put the welding torch down until the welder is switched off.
• Store all spare welding wire in a safe place, away from the welding area.
• Welding materials with contaminated surfaces may generate toxic fumes. Ensure the surface is clean
before welding. Avoid operating on materials cleaned with chlorinated solvents or near such solvents.
• Do not weld metal equipment that holds/contains flammable materials, gases or liquid combustibles.
• Zinc-plated or galvanized material should not be welded as the fumes created are highly toxic.
• Do not weld painted / oiled materials. Ensure all welding surfaces are stripped / cleaned down to the
bare metal.
• Always check the welding material before welding to see if it the material is compatible with self
shielded flux cored arc welding.
• Do not use the welder near food or food preparation areas.
• Do not weld cadmium plated steel. Always check the welding material for control measure before
welding
• Use only one welder to weld at all times.
• Only connect the welding machine to an earthed electric network.
• Never touch live parts or the welding rod with wet hands/gloves/clothing.
• Ensure there is a level of insulation (welding mats) between yourself and the ground as well as the
workpiece when welding.
• Ensure cables or welding electrode holder are not squashed by heavy objects and that they are not
exposed to sharp edges or a hot work piece.

8
• Turn off the welder when it is not in use.
Important Information about Radio Electromagnetic Compatibility
• Extra precautions for Electromagnetic Compatibility may be required when this Welding Power
Source is used in a domestic situation.
• It is the user’s responsibility to install and use the equipment properly in accordance with the
instructions issued by the manufacturer. If electromagnetic disturbances are detected then it shall be
the responsibility of the user of the equipment to resolve the situation with the following guidelines.
Precautions to consider in the surrounding area that may cause/be affected by electromagnetic
disturbances
• Other supply cables or signal cables in close proximity to the welding equipment;
• Radio and television transmitters and receivers;
• Computer or electronic equipment;
• Personal medical devices (pacemakers and hearing aids).
Methods of reducing electromagnetic disturbances
• If interference occurs when the equipment is connected to the mains power supply in a residential
(domestic) low voltage power network, an electromagnetic filter may be required.
• The Welding cables should not be modified and kept as short as possible.
• Nearby cables and equipment may need to be moved or shielded.
Fumes
• Toxic gases are given off during the welding process, which may collect in the welding area if the
ventilation is poor. Be alert at all times to the possibility of fume build-up.
• Provide adequate ventilation or a means for removal of the welding fumes produced (forced
circulation using a blower or fan).In small or confined areas use a fume extractor.
Glare
• The electric arc generated by the process gives direct heat and ultraviolet radiation. It is essential
that the eyes of the operator and bystanders are protected from the glare during welding.
• ALWAYS USE A FACESHIELD OR WELDING HELMET FITTED WITH THE CORRECT GLASS FILTER.
Position and Handling
• Position the welding machine on a horizontal surface that is able to support the weight: otherwise
(e.g. inclined or uneven floors etc.) there is danger of overturning.
• The welder MUST NOT be supported by the operator (e.g using belts).
The operator MUST NOT BE ALLOWED to weld in raised positions unless safety platforms are used.
• Do not weld materials in overhead positions.
Heat
• It is desirable that welding gloves are worn whilst welding. They will protect the hands from ultra-
violet radiation and direct heat of the arc.
Dress
• In addition to face shield, welding gloves and overalls, other types of protective clothing should be
worn when welding. Additional protective clothing such as a leather apron, sock protectors and a hat

9
will all assist in reducing any injuries due to heat, sparks and slag produced during welding.
• OVERALLS should also be worn. They should be of type designed to be buttoned at the wrists and the
neck.
• Avoid exposing skin as UV rays are produced by the arc.
Spatter and fire
• Welding spark may cause accidental fire, please make sure that there is no welding working position
nearby the welding working position, equip with the fire extinguisher all around.
• Welding is always classified as hot work, so pay attention to fire safety regulations during welding
and after it.
• Remember that fire can break out from sparks even several hours after the welding work is
completed.
• Protect the environment from welding splatter. Remove flammable materials, such as flammable
fluids, from the welding vicinity and supply the welding site with adequate fire fighting equipment.
• In special welding jobs, be prepared for hazards such as fire or explosion when welding container
type work pieces.
• Never direct the spark spray or cutting spray of a grinder toward the welding machine or flammable
materials.
• Beware of hot objects or splatter falling on the machine when working above the machine.
• Welding in flammable or explosive sites is absolutely forbidden.

CIRCUIT DIAGRAM
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D
D
C
C
B
B
A
A
AC
AC
+DC
-DC
BR1
Q2
D4
D5
R6_1
C9
LO1 OUT+
OUT-
Q1
C1 C2
R4
C7
R17
R18
VGND
310V
D13
R9
C12
D3_1
C37OUT 6
SEN 3
VCC 7
COMP
1
VFB
2
RT/CT
4
VREF
8
GND
5
N10
VGND
R56 C35 VGND
C6_1
VGND
R55
R29
C14
Q30
R51 R52
Vin
1Vout 3
GND
2
U7
Vin
2Vout 3
GND
1
U5
R14
+310V_1
GND
R13
R12
VGND
R54 DZ9
R10
D4_1
C8_1
D5_1
C10
C5_1R11
VGND
R16
R57
VGND
+12V
R15C15
C13
D15
D5
1
2
CN6
11
12
3
1
5
6 8
10
9
2
T6
D30'
D29
D33
D32
C49C47
C11 C4_1
GND
GND
C48C46
-15V
C9_1
C3_1
+15V
+15V
C44
C51
+24V
D16
C3
R5C8
D17
1
2
3
D3
1
2
3
D2
1
2
3
D3
C25
C24_1
EARTH
DZ3
DZ4
R28
R26
D8
Q3
R20
D7
R22
D6
C23
DZ5
DZ6
R30
R27
D12
Q4
R21
D10
D11
R23
C24
T2 T1
D9_1
DZ2
DZ1
26
R59
GND
R58
C19
WK
R65
XS6
+24V
Vin 3
adj 1
Vout
2
N13
R34
C27
1
2
3
4
5
6
7
8
CN2
R32
Q13
GND
GND
R44 D37
R_CURR
R69
1
2
C
N4
C26
C96
Q7
U+
R37
C28
GND
VR1
R38
C30
R46
R49
C31
R67
R8
+15V
GND
R7
R60
C39
R40
R31
+15V
GND
1.25V
D_POW
R_VOL
D_OH
GND
R41
R42
R63
C32C41
R62
GND
C34
R50
DZ8 D26
R68
-15V
R66
+24V'''
D30
R74
R33
GND
D31
D28
C50
C40
+15V
R64
D27
C43
R48
Q8
C42 GND
3
2
1
8 4
U4A
+15V
-15V
5
6
7
U4B
GND
OUT 6
SEN 3
VCC 7
COMP
1
VFB
2
RT/CT
4
VREF
8
GND
5
U1
C3
C2
D1
C08
C1
R01
R26
R03
R28
C7
R29 C9
R27
R10 R09
C5
R05
C6
R14
D2
R04
D5
R06
R02
R12
R07
R08
R11
R19
C12
GND
D10
R20
R18
C10
R17
R16
R15
R13
C11
R21
C13
R22
D15
R25
R24
C14
+15
C15
R23
C16
D14
C17
3
2
1
4 11
U2A
12
13
14
U2D
10
9
8
U2C
5
6
7
U2B
D13A
1 3
D12A
13
D7A
32
D3B
1 3
D3A
1 3 D11
1 3
D4A
32
D4B
GND
GND
+15V
R25
T3
GND
104????
33R
电流 限制 在
180-190A
1
2
CN7
VGND
WK (+15V)
WK (+15V)
1
2
3
4
CON1
310V
R179
R195
ERROR
D9
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
CTR _BOARD
C24_2 C25_1
R45
R0 R1
C5
C6
R3 C4
R61
R47
+15V
+15V
+15V
+15V
D1_2
GND
U+
PCON2
C39
D23
2C3
1C2
1C1
2MT2
2MT1
2C4
2C2
2C1
2C5
S1
AC 230V 2R1
EMC

11
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D
D
C
C
B
B
A
A
AC
AC
+DC
-DC
BR1
Q2
D4
D5
R6_1
C9
LO1 OUT+
OUT-
Q1
C1 C2
R4
C7
R17 R18
VGND
310V
D13
R9
C12
D3_1
C37OUT 6
SEN 3
VCC 7
COMP
1
VFB
2
RT/CT
4
VREF
8
GND
5
N10
VGND
R56 C35 VGND
C6_1
VGND
R55
R29
C14
Q30
R51 R52
Vin
1Vout 3
GND
2
U7
Vin
2Vout 3
GND
1
U5
R14
+310V_1
GND
R13
R12
VGND
R54 DZ9
R10
D4_1
C8_1
D5_1
C10
C5_1R11
VGND
R16 R57
VGND
+12V
R15C15
C13
D15
D5
1
2
CN6
11
12
3
1
5
6 8
10
9
2
T6
D30'
D29
D33
D32
C49C47
C11 C4_1
GND
GND
C48C46
-15V
C9_1
C3_1
+15V
+15V
C44
C51
+24V
D16
C3
R5C8
D17
1
2
3
D3
1
2
3
D2
1
2
3
D3
C25
C24_1
EARTH
DZ3
DZ4
R28
R26
D
8
Q3
R20
D7
R22
D6
C23
DZ5
DZ6
R30
R27
D12
Q4
R21
D10
D11
R23
C24
T2 T1
D9_1
DZ2
DZ1
26
R59
GND
R58
C19
WK
R65
XS6
+24V
Vin 3
adj 1
Vout
2
N13
R34
C27
1
2
3
4
5
6
7
8
CN2
R32
Q13
GND
GND
R44 D37
R_CURR
R69
1
2
CN4
C26
C96
Q7
U+
R37
C28
GND
VR1
R38
C30
R46
R49
C31
R67
R8
+15V
GND
R7
R60
C39
R40
R31
+15V
GND
1.25V
D_POW
R_VOL
D_OH
GND
R41
R42
R63
C32C41
R62
GND
C34
R50
DZ8 D26
R68
-15V
R66
+24V'''
D30
R74
R33
GND
D31
D28
C50
C40
+15V
R64
D27
C43
R48
Q8
C42 GND
3
2
1
8 4
U4A
+15V
-15V
5
6
7
U4B
GND
OUT 6
SEN 3
VCC 7
COMP
1
VFB
2
RT/CT
4
VREF
8
GND
5
U1
C3
C2
D1
C08
C1
R01
R26
R03
R28
C7
R29 C9
R27
R10 R09
C5
R05
C6
R14
D2
R04
D5
R06
R02
R12
R07
R08
R11
R19
C12
GND
D10
R20
R18
C10
R17
R16
R15
R13
C11
R21
C13
R22
D15
R25
R24
C14
+15
C15
R23
C16
D14
C17
3
2
1
4 11
U2A
12
13
14
U2D
10
9
8
U2C
5
6
7
U2B
D13A
1 3
D12A
13
D7A
32
D3B
1 3
D3A
1 3 D11
1 3
D4A
32
D4B
GND
GND
+15V
R25
T3
GND
104????
33R
电流 限制 在
180-190A
1
2
CN7
VGND
WK (+15V)
WK (+15V)
1
2
3
4
CON1
310V
R179
R195
ERROR
D9
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
CTR _BOARD
C24_2 C25_1
R45
R0
R1
C5
C6
R3 C4
R61
R47
+15V
+15V
+15V
+15V
D1_2
GND
U+
PCON2
C39
D23
2C3
1C2
1C1
2MT2
2MT1
2C4
2C2
2C1
2C5
S1
AC 230V 2R1
EMC

MAINTENANCE
Cleaning
1. We recommend that you clean the appliance immediately after you use it.
2. Keep the safety devices free of dirt and dust as much as possible. Wipe the equipment with
a clean cloth.
3. Clean the appliance regularly with a damp cloth and some soft soap. Do not use cleaning
agents or solvents; these may be aggressive to the plastic parts in the appliance. Ensure
that no water can get into the interior of the appliance.
Storage
Pull the mains plug out of the socket, switch off the tool and make sure that it is secured in
such a way that it cannot be started up again by any unauthorised person.
Store the tool in a dry location which is not accessible to unauthorised persons.
Supply Cords
If replacement of the supply cord is necessary, this has to be done by a certified electrician in
order to avoid a safety hazard.
Note: Ozito Industries will not be responsible for any damage or injuries caused by the repair
of the tool by an unauthorised person or by mishandling of the tool.
WARNING! BEFORE CLEANING THE APPLIANCE OR CARRYING OUT ANY
MAINTENANCE PROCEDURE, MAKE SURE THAT IT IS DISCONNECTED FROM
THE POWER SUPPLY TO PREVENT ACCIDENTAL STARTING.