Lotos MIG175 User Manual
LOTOS MIG175
MIG Welder
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TABLE OF CONTENTS
SAFETY...…………………...……………………………………………………………4
SPECIFICATIONS…………..….………………………………………………………9
General Description………………………………………………………………....9
What’s Included……………………………………………………...……………..9
Power Supply Ratings………..…………………………………………………....10
Machine Rear.……………………………………………………………………….11
Front Control Panel………………………………………………………………….11
Side Components…………..……………………………………………………….12
INSTALLATION………………………………………………………………………13
Before Installation…………………………………………………………………13
Environmental Area…………………………………………………………………13
Wire Feeder Installation……………………………………………………………..14
Welding Wire Installation…………………………………………………………..14
How to Thread Welding Wire Through the Wire Feeder…………………………..15
Shielding Gas Installation…………………………………………………………..16
OPERATION...……………………………………………………………………….17
Welding Operations…………………………………………………………………17
Welding Steps………………………………………………………………………17
Welding Process……………………………………………………………………..18
Spool Gun Operation…………………………………………………..……………18
Overload Protection…………………………………………………..……………19
Overload Protection to Wire Feeder……………………………………………….19
Welding Label……………………………………………………..………………20
OTHER ACCESSORIES………………………………………………………………21
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MIG175 MIG WELDER
Save This Manual
You will need the manual for safety warnings and precautions, assembly
instructions, operating and maintenance procedures, parts list and diagram.
Keep your invoice with this manual. Write invoice number and date of
purchase on the inside of the manual. Keep the manual and invoice in a safe
and dry place for future
Operation Manual
Carefully read the operation manual prior to using, installing and
maintaining the electric welding machine for the purpose of preventing
damages such as fire, electric shock and etc from occurring. Please keep the
manual for the reference in the future.
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SAFETY WARNINGS AND PRECAUTIONS
PLEASE READ AND UNDERSTAND THE FOLLOWING SAFETY HIGHLIGHTS.
BE SURE THAT ALL INSTALLATION, OPERATION, MAINTENANCE AND
REPAIR PROCEDURES ARE PERFORMED ONLY BY QUALIFIED INDIVIDUALS. ARC
AND TIG WELDING CAN BE HAZARDOUS. PROTECT YOURSELF AND OTHERS FROM
POSSIBLE SERIOUS INJURY OR DEATH. KEEP CHILDREN AWAY. PACEMAKER
WEARERS SHOULD CONSULT WITH THEIR DOCTOR BEFORE OPERATING.
WHEN USING THE WELDER, ALL BASIC SAFETY PRECAUTIONS SHOULD ALWAYS BE
FOLLOWED TO REDUCE THE RISK OF PERSONAL INJURY AND DAMAGE TO
EQUIPMENT.
READ ALL INSTRUCTIONS BEFORE USING THIS WELDER.
Keep work area clean. Cluttered areas invite injuries.
Observe work area conditions. Do not use machines or power tools in damp or wet locations.
Do not expose to rain. Keep work area well-lighted. Do not use electrically powered tools in the
presence of flammable gases or liquids.
Keep children away. Children must be never be allowed in the work area. Do not let them
handle machines, tools or extension cords.
Store idol equipment. When not in use, tools must be stored in a dry location to inhibit rust.
Always lock up tools and keep them out of the reach of children.
Do not force tool. It will do the job better and safer at the rate for which it was intended. Do not
use inappropriate attachments in an attempt to exceed the tool capacity.
Use the right tool for the job. Do not attempt to force a small tool or attachment to do the work
of a larger industrial tool. There are certain applications for which this welder was designed. Do not
modify this welder and do not use this welder for any other purposes for which it was not intended.
Dress properly. Do not wear loose clothing or jewelry as they can be caught in moving parts.
Protective, flame retardant, electrically non-conductive clothing and non-skid footwear are
recommended when working. Wear restrictive hair covering to contain long hair.
Use eye and ear protection. Always wear ANSI approved, arc shaded, impact safety face shield
(welding helmet). Always use a full-face shield when welding. Always wear ANSI approved eyewear
under face shield and while in the workplace. Wear a NIOSH approved dust mask or respirator when
working around metal, chemical dusts, fumes and mists.
Do not over reach. Keep proper footing and balance at all times. Do not reach over or across
running machines.
Maintain tools with care. Keep tools sharp and clean for better and safer performance. Follow
instructions for lubricating and changing accessories. Inspect tool cords periodically and, if damaged,
have them repaired by an authorized technician. The handl;es must be kept clean, dry, and free from
oil and grase at all times.
Disconnect power. Unplug tool when not in use.
Remove adjusting keys and wrenches. Check that keys and adjustment wrenches are removed
from the welder and work area before plugging in.
Avoid starting unintentionally. Be sure the switch is in the off position when not in use and
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before plugging in. Do not carry any tool with your finger on the trigger, whether it is plugged in or
not.
Stay alert. Watch what you are doing. Use common sense. Do not operate any tool when tired.
Check for damaged parts. Before using any tool, any part that appears damaged should be
carefully checked to determine that it would operate properly and perform its intended function.
Check for alignment and binding of moving parts; any broken parts or mounting fixtures; and any
other condition that may affect proper operation. Any part that is damaged should be properly repaired
or replaced by a qualified technician. Do not use the tool if any switch does not turn on and off
properly.
Guard against electric shock. Prevent body contact with grounded surfaces such as pipes,
radiators, ranges, and refrigerator enclosures.
Replacement parts and accessories. When servicing, use only identical replacement parts. Use
of any other parts will void warranty. Only use accessories intended for use with this welder.
Approved accessories are available from www.uwelding.com.
Do not operate tool if under the influence of alcohol or drugs. Read warning labels on
prescriptions to determine if your judgment or reflexes are impaired while taking drugs. If there is any
doubt, do not operate the welder.
Maintenance. For your safety, service and maintenance should be performed regularly by a
qualified technician.
Use proper size and type extension cord. If an extension cord is required, it must be of the
proper size and type to supply the correct current to the welder without heating up. Otherwise, the
extension cord could melt and catch fire, or cause electrical damage to the welder. This welder
requires use of an extension cord of 20 amps minimum capability up to 30 feet, with a wire size rated
at 12 AWG. Longer extension cords require larger size wire. If you are using the welder outdoors, use
an extension cord rated for outdoor use, signified by “WA” on the jacket. Performance of this welder
may vary depending on condition in local line voltage. Extension cord usage may also affect welder
performance.
The warnings, cautions and instructions discussed in this instruction manual cannot cover all
possible conditions and situations that may occur. It must be understood, by the operator, that
common sense and caution are factors, which cannot be built into this product, but must be
supplied by the operator.
ARC WELDER SAFETY WARNINGS AND PRECAUTIONS
Warning: This product, when used for welding and similar applications, produces chemicals to
cause cancer and birth defects (or other reproductive harm).
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ELECTRIC SHOCK can be fatal
The electrode and work (or ground) circuits are electrically “hot” when the
machine is on. Do not touch these “hot” parts with your bare skin or wet clothing.
Protective clothing should be hole free, dry and ANSI approved. Wear dry,
hole-free gloves to insulate hands.
Do not permit electrically live parts, cables, or electrodes to contact skin,
clothing or gloves.
This unit draws enough current to cause serious injury and or death.
Before turning the welder on, check the welder gun to be sure that there are no protruding screw
heads and that all insulation is secure.
Insulate yourself from work and ground using dry insulation. Make certain the insulation is large
enough to cover your full area of physical contact with work and ground.
Always be sure the work cable makes a good electrical connection with the metal being cut.
The connection should be as close as possible to the area being cut.
Ground the work metal to be cut to a good electrical (earth) ground.
Maintain the welding torch, work clamp, power cable and cutting machine in good, safe
operating condition. Replace damaged insulation.
Never dip the electrode in water for cooling.
When working above floor level, use a safety belt to protect yourself from a fall should you
get a shock.
FUMES AND GASES can be dangerous
Plasma cutting may produce fumes and gases hazardous to health. Avoid
breathing these fumes and gases. When cutting, keep your head out of the fume.
Use enough ventilation and/or exhaust at the arc to keep fumes and gases away
from the breathing zone. In confined spaces or in some circumstances, outdoors,
a respirator may be required. Additional precautions are also required when
cutting on galvanized steel.
Do not cut in locations near chlorinated hydrocarbon vapors coming from degreasing,
cleaning or spraying operations. The heat and rays of the arc can react with solvent vapors to
form phosgene, a highly toxic gas, and other irritating products.
Read and understand the manufacturer’s instructions for this equipment and the consumables
to be used, including the material safety data sheet (MSDS) and follow your employer’s
safety practices. MSDS forms are available from your welding distributor or from the
manufacturer.
ELECTRIC AND MAGNETIC FIELDS may be dangerous
The EMF field that is generated during arc welding may interfere with
various electrical and electronic devices such as cardiac pacemakers.
Anyone using such devices should consult with their physician prior to
performing any electric welding operations.
Exposure to EMF fields while welding may have other health effects, which
are not known.
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ARC RAYS can burn
Avoid eye and body damage. Arc rays and infrared radiation can cause
injury to the eyes and burn the skin. Wear ANSI approved eye and body
protection. Do not allow viewing by visitors without proper eye and body
protection.
Use a shield with the proper filter and cover plates to protect your eyes
from sparks and the rays of the arc when plasma cutting or observing open arc plasma cutting.
Use suitable clothing made from durable flame-resistant material to protect your skin and that of
your helpers from the arc rays.
Protect other nearby personnel with suitable, non-flammable screening and/or warn them not to
watch the arc nor expose themselves to the arc rays or to hot spatter or metal.
WELDING SPARKS can cause fire or explosion
Remove fire hazards from the cutting area. If this is not possible, cover
them to prevent the welding sparks from starting a fire. Remember that welding
sparks and hot materials from cutting can easily go through small cracks and
openings to adjacent areas. Avoid cutting near hydraulic lines. Have a fire
extinguisher readily available. Do not operate the electric arc welder in areas where
flammable or explosive vapors are present.
Where compressed gases are to be used at the job site, special precautions should be used to
prevent hazardous situations.
Do not heat, cut or weld tanks, drums or containers until the proper steps have been taken to
insure that such procedures will not cause flammable or toxic vapors from substances inside.
They can cause an explosion even though they have been “cleaned”.
Always keep a fire extinguisher nearby while welding.
Use welding blankets to protect painted surfaces, dashboards, engines, etc.
Please make sure there are no combustible items around your welding area.
CYLINDER may explode if damaged
Use only compressed gas cylinders containing the correct shielding gas for the
process used and properly operating regulators designed for the gas and pressure
used. All hoses, fittings, etc. should be suitable for the application and maintained in
good condition.
Always keep cylinders in an upright position securely chained to an
undercarriage or fixed support.
Cylinders should be located:
Away from areas where they may be struck or subjected to physical damage.
A safe distance from arc welding or cutting operations and any other source of heat, sparks,
or flame.
Never allow any electrically “hot” parts to touch a cylinder.
Keep your head and face away from the cylinder valve outlet when opening the cylinder
valve.
Valve protection caps should always be in place and hand tight except when the cylinder is in
use or connected for use.
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