Lincoln Electric COOL ARC 25 User manual

IM3013
07/2019
REV05
COOL ARC®25
OPERATOR’S MANUAL
ENGLISH
Lincoln Electric Bester Sp. z o.o.
ul. Jana III Sobieskiego 19A, 58-263 Bielawa, Poland
www.lincolnelectric.eu

English English
I
12/05
THANKS! For having chosen the QUALITY of the Lincoln Electric products.
Please Examine Package and Equipment in case of Damage. Claims for material damaged in shipment must be
notified immediately to the dealer.
For future reference record in the table below your equipment identification information. Model Name, Code &
Serial Number can be found on the machine rating plate.
Model Name:
………………...…………………………….…………………………………………………………………………………………..
Code & Serial number:
………………….……………………………………………….. …………………………………………………….……………..
Date & Where Purchased:
…………………………………………………………………... ……………………….…………………………………………..
ENGLISH INDEX
Technical Specifications .................................................................................................................................................. 1
Electromagnetic Compatibility (EMC) .............................................................................................................................. 2
Safety .............................................................................................................................................................................. 3
Installation and Operator Instructions .............................................................................................................................. 4
WEEE............................................................................................................................................................................ 11
Spare Parts.................................................................................................................................................................... 11
Authorized Service Shops Location............................................................................................................................... 11
Electrical Schematic ...................................................................................................................................................... 11
Accessories ................................................................................................................................................................... 12

English 1 English
Technical Specifications
NAME INDEX
COOL ARC®25 K14037-1
INPUT
Input Voltage U1Rated current Frequency
230 10% single phase 0,95A 50 Hz
RATED OUTPUT AT 40°C
Flow range
MIG
TIG
Open flow
0,5 to 3,3 l/min
with torch 4,5m: 1,7 1,8 l/min
with torch 3,8m: 1,3 1,4 l/min
3,3 l/min
Reservoir size 8,5 l
COOLANT
Recommended coolant: FREEZCOOL - W000010167
Do not use!!
Pre-packaged welding industry coolants. These coolants may contain oil-based substances,
which attack the plastic components of the cooler. Once added to the cooler, these
substances are impossible to purge from the water lines and heat exchanger.
Automotive anti-freeze. These coolants will damage the pump and block of the heat
exchanger, affecting cooling performance.
PHYSICAL DIMENSIONS
Height Width Length Weight
748 mm 238 mm 248 mm 17 Kg
Operating Temperature Storage Temperature
–10°C to +40°C -25°C to +55°C

English 2 English
Electromagnetic Compatibility (EMC)
11/04
This machine has been designed in accordance with all relevant directives and standards. However, it may still generate
electromagnetic disturbances that can affect other systems like telecommunications (telephone, radio, and television) or
other safety systems. These disturbances can cause safety problems in the affected systems. Read and understand this
section to eliminate or reduce the amount of electromagnetic disturbance generated by this machine.
This machine has been designed to operate in an industrial area. To operate in a domestic area it is necessary
to observe particular precautions to eliminate possible electromagnetic disturbances. The operator must install
and operate this equipment as described in this manual. If any electromagnetic disturbances are detected the
operator must put in place corrective actions to eliminate these disturbances with, if necessary, assistance from
Lincoln Electric.
Before installing the machine, the operator must check the work area for any devices that may malfunction because of
electromagnetic disturbances. Consider the following.
Input and output cables, control cables, and telephone cables that are in or adjacent to the work area and the
machine.
Radio and/or television transmitters and receivers. Computers or computer controlled equipment.
Safety and control equipment for industrial processes. Equipment for calibration and measurement.
Personal medical devices like pacemakers and hearing aids.
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.
The dimensions of the work area to consider will depend on the construction of the area and other activities that are
taking place.
Consider the following guidelines to reduce electromagnetic emissions from the machine.
Connect the machine to the input supply according to this manual. If disturbances occur if may be necessary to take
additional precautions such as filtering the input supply.
The output cables should be kept as short as possible and should be positioned together. If possible connect the
work piece to ground in order to reduce the electromagnetic emissions. The operator must check that connecting the
work piece to ground does not cause problems or unsafe operating conditions for personnel and equipment.
Shielding of cables in the work area can reduce electromagnetic emissions. This may be necessary for special
applications.

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Safety
01/11
WARNING
This equipment must be used by qualified personnel. Be sure that all installation, operation, maintenance and repair
procedures are performed only by qualified person. Read and understand this manual before operating this equipment.
Failure to follow the instructions in this manual could cause serious personal injury, loss of life, or damage to this equipment.
Read and understand the following explanations of the warning symbols. Lincoln Electric is not responsible for damages
caused by improper installation, improper care 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 from possible serious injury or
death.
READ AND UNDERSTAND INSTRUCTIONS: Read and understand this manual before operating
this equipment. Arc welding can be hazardous. Failure to follow the instructions in this manual could
cause serious personal injury, loss of life, or damage to this equipment.
ELECTRIC SHOCK CAN KILL: Welding equipment generates high voltages. Do not touch the
electrode, work clamp, or connected work pieces when this equipment is on. Insulate yourself from
the electrode, work clamp, and connected work pieces.
ELECTRICALLY POWERED EQUIPMENT: Turn off input power using the disconnect switch at the
fuse box before working on this equipment. Ground this equipment in accordance with local electrical
regulations.
ELECTRICALLY POWERED EQUIPMENT: Regularly inspect the input, electrode, and work clamp
cables. If any insulation damage exists replace the cable immediately. Do not place the electrode
holder directly on the welding table or any other surface in contact with the work clamp to avoid the
risk of accidental arc ignition.
ELECTRIC AND MAGNETIC FIELDS MAY BE DANGEROUS: Electric current flowing through any
conductor creates electric and magnetic fields (EMF). EMF fields may interfere with some
pacemakers, and welders having a pacemaker shall consult their physician before operating this
equipment.
CE COMPLIANCE: This equipment complies with the European Community Directives.
ARTIFICIAL OPTICAL RADIATION: According with the requirements in 2006/25/EC Directive and
EN 12198 Standard, the equipment is a category 2. It makes mandatory the adoption of Personal
Protective Equipments (PPE) having filter with a protection degree up to a maximum of 15, as
required by EN169 Standard.
FUMES AND GASES CAN BE DANGEROUS: Welding may produce fumes and gases hazardous to
health. Avoid breathing these fumes and gases. To avoid these dangers the operator must use
enough ventilation or exhaust to keep fumes and gases away from the breathing zone.
ARC RAYS CAN BURN: Use a shield with the proper filter and cover plates to protect your eyes from
sparks and the rays of the arc when welding or observing. Use suitable clothing made from durable
flame-resistant material to protect you skin and that of your helpers. Protect other nearby personnel
with suitable, non-flammable screening and warn them not to watch the arc nor expose themselves to
the arc.
WELDING SPARKS CAN CAUSE FIRE OR EXPLOSION: Remove fire hazards from the welding
area and have a fire extinguisher readily available. Welding sparks and hot materials from the welding
process can easily go through small cracks and openings to adjacent areas. Do not weld on any
tanks, drums, containers, or material until the proper steps have been taken to insure that no
flammable or toxic vapors will be present. Never operate this equipment when flammable gases,
vapors or liquid combustibles are present.
WELDED MATERIALS CAN BURN: Welding generates a large amount of heat. Hot surfaces and
materials in work area can cause serious burns. Use gloves and pliers when touching or moving
materials in the work area.
SAFETY MARK: This equipment is suitable for supplying power for welding operations carried out in
an environment with increased hazard of electric shock.

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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. Always keep cylinders in an upright position securely chained to a fixed support. Do
not move or transport gas cylinders with the protection cap removed. Do not allow the electrode,
electrode holder, work clamp or any other electrically live part to touch a gas cylinder. Gas cylinders
must be located away from areas where they may be subjected to physical damage or the welding
process including sparks and heat sources.
HOT COOLANT CAN BURN SKIN: Always be sure coolant is NOT HOT before servicing the cooler.
The manufacturer reserves the Right to make changes and/or improvements in design without upgrade at the same time
the operator’s manual.
Installation and Operator Instructions
Read this entire section before installation or operation
of the machine.
WARNING
ELECTRIC SHOCK can kill.
Do not operate with covers removed.
Do not operate if cables are wet or
immersed in water.
MOVING PARTS can injure.
Moving parts can injure. Never place
fingers into openings of Cooler.
HOT COOLANT can burn skin.
Always be sure coolant is NOT HOT
before servicing the cooler.
LOCATION
This machine will operate in harsh environments.
However, it is important that simple preventative
measures are followed to assure long life and reliable
operation.
Do not place or operate this machine on a surface
with an incline greater than 15° from horizontal.
Do not use this machine for pipe thawing.
This machine must be located where there is free
circulation of clean air without restrictions for air
movement to and from the air vents. Do not cover
the machine with paper, cloth or rags when switched
on.
Dirt and dust that can be drawn into the machine
should be kept to a minimum.
This machine has a protection rating of IP23. Keep it
dry when possible and do not place it on wet ground
or in puddles.
Locate the machine away from radio controlled
machinery. Normal operation may adversely affect
the operation of nearby radio controlled machinery,
which may result in injury or equipment damage.
Read the section on electromagnetic compatibility in
this manual.
Do not operate in areas with an ambient temperature
higher than 40°C. The ambient air temperature
influences the parameters of cooling. If the ambient
temperature is higher, the cooling system will be less
effective
WARNING
Avoid placing the cooler near areas of extreme heat.
Product Description
COOL ARC®25 cooler is a stand alone recirculating
cooling system designed for use with water cooled TIG,
MIG, PAC (Plasma Arc Cutting) and PAW (Plasma Arc
Welding). Additional applications include resistance
welding, water cooled inductive heating.
The fittings located on the back of the COOL ARC®25
are two a female left-hand threaded quick water fittings.
(type 21KATS09MPX). Quick Connect Water Adapter
converting quick water fitting to a male 5/8"-18 left hand
hose fitting is supplied with each COOL ARC®25. The
cooler is also equipped with a bracket so it can be
mounted at the rear of a Lincoln power source, to the
dual cylinder undercarriage.
COOL ARC®25 cooler is designed for use with all water-
cooled TIG and medium duty MIG torches and guns.
The COOL ARC®25 coolers bring new technology in the
areas of pump, heat exchanger and reservoir designs to
the water cooler market. These technologies allow the
COOL ARC®25 coolers to be lighter in weight, lower in
energy consumption.
Warranty
Warranty for this product is 3 year after the date of
purchase. For any warranty claim, contact a certified
Lincoln service center.

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Installation
Figure 1
Coolant INLET and OUTLET fittings are placed at the
rear of the unit (A). The right side fitting is marked
"coolant out" (supplies coolant to the welding
equipment); the left side one is marked "coolant in"
(takes warm coolant from the welding equipment).
The FILL CAP of the coolant reservoir is on the top of
the unit (B). Fill Cap can be removed by twisting it off.
The coolant FLOW INDICATOR is accessed by removal
of the reservoir fill cap. Actual return flow is directly
visible by the fill opening (C) with the unite in the vertical
position.
Coolant volume can be monitored through sight window
on the front panel (D). The maximum coolant level is
indicated by the upper marker, the minimum level by the
lower one.
Air flow louvers (E): Design of he front case allows for
ease access to internal parts at repairing. Air flow
louvers secure adequate air circulation. The louvers on
the front of the case allow to suck in cold air from bottom
of the unit. Hot air is removed by the side and rear
louvers.
Filling The Reservoir
Proper Coolant Addition
FREEZCOOL - W000010167 is recommended coolant for
COOL ARC®25.
For use above freezing: Tap, distilled, deionized, mineral
water. For use below freezing: water and pure ethylene
glycol mixture (10% glycol between at 0°C and 30% at -
15°C).
WARNING
DO NOT USE PREPACKAGED WELDING INDUSTRY
COOLANTS. These coolants may contain oil-based
substances which attack the plastic components in the
pump of the COOL ARC®25 cooler and severely reduce
pump life. Once added to the cooler, the substances are
virtually impossible to purge from the water lines and heat
exchanger.
To avoid freeze damage and water leakage in shipment,
every COOL ARC®25 unit is delivered empty with no
coolant in the system. To fill the unit, locate the plastic
reservoir fill cap at the front middle of the unit.
NOTE: The unit can be filled only vertically.
WARNING
UNPLUG THE COOLER BEFORE FILLING THE
RESERVOIR.
Filling:
Tilt the unit backward and pour 8,5 liters of coolant into
the reservoir fill hole through a funnel.
or
If 2,5 liter antifreeze fill bottle or fill bottle is available, tilt
the unit forward until the bottle mates with the reservoir
fill hole. Then tilt the unit backward until the fill bottle is
emptied.
WARNING
AVOID SPILLING COOLANT INTO THE FRONT
CASING OF THE UNIT.
Unit will be full when coolant lies just below the reservoir
opening with the unit in its upright position.
NOTE: DO NOT ADD MORE THAN 8.5 LITERS OF
COOLANT INTO THE RESERVOIR.
The fill cap contains a pressure release air hole which
must not be blocked by overfilling the reservoir with
coolant.
Be certain to replace the reservoir fill cap when the
reservoir is full. Operation of the COOL ARC®25 cooler
without the fill cap in place can cause poor cooling
efficiency, evaporation loss of coolant, and low product
life.
Water Hoses Connection
Figure 2 Water Hoses Connection Diagram
A. FROM HEAT SOURCE (RED)
B. TO HEAT SOURCE (BLUE)
Water hoses connection is made with quick water fittings
(type 21KATS09MPX). In case of hoses with 5/8"-18 left
hand nut, you have to use Quick Connect Water Adapter,
which is delivered with the unit. In this case, firstly you
should connect the adapters to the water hoses and then
connect them to the quick water fittings of the cooler.
In case of disconnection water hoses from the cooler,
firstly you should disconnect quick water fittings, which are
equipped with the automatic outflow blockade.
If you firstly unplug the connection quick water fitting -
5/8"/18 nut, it can cause coolant outflow from the cooler

English 6 English
reservoir.
Before water hoses installing to the cooler, you should
check if the tread of the connector water hose nut
matches the quick water connectors placed in the
connector block on the back of the unit.
All Lincoln products have water hoses which are equipped
with 5/8"-18 left hand nuts so hose connectors must be
matched the quick water fittings on the back of the cooler,
in the following way:
Take the two quick connect water adapters (5/8-18 left
hand hose fitting to quick water fitting) supplied with
the cooler and thread hoses nuts into the adapters.
Secure the connector nuts of the hoses tightly with a
wrench so that leaking does not occur. Then take the
INLET hose (colored or tagged blue on most hoses)
and attach it into the coolant OUT line located on the
right side of the connector block at the back of the
cooler. Then take the OUTLET hose (colored or
tagged red on most hoses) and attach it into the
coolant IN line located on the left side of the connector
block.
For products having water hoses equipped with quick
water fittings which mate with fittings on the connector
block at the back of the cooler, you should:
Save the two quick water adapters for future use.
Take INLET hose (colored or tagged blue on most
hoses) and attach it into the coolant OUT line located
on the right side of the connector block at the back of
the cooler. Then take the OUTLET hose (colored or
tagged red on most hoses) and attach it into the
coolant IN line located on the left side of the connector
block.
WARNING
BE CERTAIN THAT NO LEAKS EXIST WHEN COOLER
IS TURNED ON. A LEAK WILL DEPLETE RESERVOIR
VOLUME, CAUSE POOR OR COOLING
PERFORMANCE AND REDUCE GUN, TORCH OR
PUMP LIFE.
NOTE: Be certain that only 5/8"-18 left hand male nuts
with clean and smooth threads are used on your water
hoses. Wrong nuts and bad connections can cause
coolant leaking, cooling system efficiency reducing and
at last the cooler damaging.
Mounting
Figure 3A Bracket Mounting Depending on the Power
Source Height
Figure 3B COOL ARC®25 Mounting to the Power Source
Diagram
1. Main Mounting Bracket
2. Water Hoses Bracket
3. Blackened Screw B6P 4,8x13
4. Bolt M6x16 S6K
5. Plain Washer M6 P/M-82005
Before mounting COOL ARC®25 to the power source
firstly you must mount the water hoses bracket. Use
blackened screw B6P 4,8x13 and thread the water hoses
bracket to the power source case, paying attention to the
bracket stamp which must be fit into the hole bellow the
hole for the blackened screw. After mounting you should
hang the water hoses on it. It allows to arrange water
hoses without squeezing or sharp bends.

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Vertical Installation COOL ARC®25 on a Power
Source with a Cylinder Undercarriage
For the COOL ARC®25 vertically mounted on a power
source with a cylinder undercarriage, you should use the
main mounting bracket. For proper installation, you
should see Figure 3A and Figure 3B. Using provided
blackened screws and proper holes in the cooler case,
fasten the bracket to the cooler back. Then place the
cooler on the undercarriage on its left side. Align the
holes of the cooler bracket with the holes on the rivet nut
in the back of the power source. Using provided bolt
M6x16 S6K and plain washer M6 PN/M-82005 fasten the
cooler bracket to the power source back. After installation
you should check if the connection is firm.
Figure 4 Water Cooled TIG Torch Connection
1. Gas In/Out
2. to Work
3. Gas
4. Power Cable Adapter
5. Hot Coolant from the Torch
6. Coolant
7. Coolant Out
8. Coolant In
9. Argon Gas Cylinder
10. Regulator Flowmeter
11. TIG Torch
87
6
6
12
Figure 5 Water cooled MIG gun connection
6. COOLANT
7. COOLANT OUT
8. COOLANT IN
12. GUN CABLE
87
6
6
13
14
15
Figure 6 Water cooled Plasma system connection
6. COOLANT
7. COOLANT OUT
8. COOLANT IN
13. AIR
14. PLASMA, CUTTING, POWER SOURCE
15. ELECTRODE CABLE & AIR
The following should always be observed when
operating the COOL ARC®25:
Never operate the cooler with case off.
Immersion in water around electrical lines can cause
electrical shock.
Never place fingers into openings of cooler. Moving
parts can injure.
Unplug the cooler before filling the reservoir.
Never operate the cooler with the reservoir fill cap
off.
Never operate the cooler with the reservoir empty.
Operating Precautions
The following should always be observed when
operating any COOL ARC®25 cooler:
Check the reservoir daily.
Keep the reservoir full especially after changing any
water lines.
Never operate the cooler with the reservoir fill cap
removed.
Avoid placing the cooler near areas of extreme heat.
Avoid placing the cooler near a flux hopper or an
area where dust build-up is extreme.
Avoid kinking or putting sharp bends in any water
lines.
Keep all water lines clean.
Turning The System ON
After filling the reservoir and connecting the coolant hoses
to the COOL ARC®25 cooler per the Installation Sections,
plug the unit into an electrical receptacle for start-up
operation. Be certain that the power input into the unit
matches the cooler’s rated input. COOL ARC®25 cooler
cordsets contains a 90 angled CEE 7/4, 7/7 Schuko
compatible plug. The plug mates with an auxiliary
receptacle located at the back of many international
Lincoln power sources for power supply to a
COOL ARC®25 cooler.
You will be able to hear the fan running and feel air flow
out of the back of the unit when the cooler is operating.
When first starting the unit, check all of the water lines to
insure that no water leaks are present. Water leakage
causes poor welding performance, poor cooling
performance, low welding component and pump life and
potential electrical safety hazards.

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Cooling Efficiency
Figure 7 Circulation of COOL ARC®25
1. COOLANT RETURN
2. COOLANT IN TAKE
3. PUMP
4. FAN
5. HEAT EXCHANGER
6. HEATED AIR OUT
7. COOLANT OUT
8. COOLANT IN
9. RESERVOIR
The high cooling efficiency COOL ARC®25 offers a
cooler, more comfortable weld than conventional air-
cooled procedures as well as leading competitors water
cooled systems. The corrugated radiator of the heat
exchanger improves heat convection with minimal air flow
restriction. This design ensures a durable construction
which is able to withstand impact of different objects
through air slots. Figure 7 shows work principles of the
COOL ARC®25.
The COOL ARC®25 cooler effectively removes the heat
of the arc away from the gun or torch handle and places it
into the exiting air flow at the back of the cooler. Ambient
air temperature can affect the cooling parameters of the
COOL ARC®25.
For example:
COOL day (50°F, 10°C): More HEAT is transferred
from the water in the heat exchanger to the air. The
water is COOLER and more HEAT is transferred
from the gun or torch to the water.
RESULT: THE GUN OR TORCH FEELS COOLER
•HOT day (100°F, 38°C): Less HEAT is transferred
from the water in the heat exchanger to the air. The
water is HOTTER and less HEAT is transferred from
the gun or torch to the water.
RESULT: THE GUN OR TORCH FEELS HOTTER.
Unlike other water coolers that depend on bulky
reservoir size, the high efficiency components of
COOL ARC®25 cooler allows the reservoir size to be
small. The result is a lightweight, portable unit.
Cooling Efficiency - Recommended Values
COOL ARC®25 ref: K14037-1
Max welding current TIG 100% duty cycle 350A
Max welding current MIG 100% duty cycle 350A
Transport
To avoid freeze damage and water leakage during
transport, the coolant must be removed from the cooler’s
reservoir.
Maintenance
WARNING
For any repair operations, modifications or maintenance, it
is recommended to contact the nearest Technical Service
Center or Lincoln Electric. Repairs and modifications
performed by unauthorized service or personnel will
cause the manufacturer’s warranty to become null and
void.
Any noticeable damage should be reported immediately
and repaired.
Heat Exchanger Maintenance
To maintain maximum efficiency, the heat exchanger
should be kept clean from dust and dirt buildup. Clean the
heat exchanger periodically using a vacuum hose or low
pressure air line. Avoid placing the unit near a flux hopper
or a flux waste container. A clean heat exchanger offers
better cooling performance and longer product life. If
extremely dirty conditions exist, it may be necessary to
remove the heat exchanger completely from the cooler for
a thorough soap and water cleaning of the cooling fins.
Use care to avoid damaging the fins.
Reservoir Maintenance
The reservoir volume should be checked daily before
using the cooler. You can do it by observation the level of
the coolant in the sight window on the front panel.. The
unit is full when the coolant level reaches upper marker.
Keep the reservoir full especially after changing the water
lines. The cooler should always be operated with the
reservoir fill cap on. In areas where dust can be
introduced into the reservoir through water lines or
reservoir fill cap removal, periodically flush the unit out.
Dump the old coolant and rinse the inside of the reservoir.
Add new coolant when finished. A reservoir free from
particle buildup and dirt offers better cooling efficiency and
longer pump, gun and torch life.
ROUTINE MAINTENANCE
Check the condition of water-cooler hoses and
connections of the power lead.
Check the welding torch / gun condition: replace it, if
necessary.
Check condition and operation of the cooling fan. Keep
its airflow slots clean.
The reservoir volume should be checked daily before
using the cooler.
Keep the reservoir full, especially after disconnecting
the water lines or changing the accessory being cooled.

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PERIODIC MAINTENANCE (NOT LESS THAN ONCE
A YEAR)
Perform the routine maintenance and, in addition:
Keep the machine clean. Using a dry (and low
pressure) airflow, remove the dust from the external
case and from the heat exchanger inside.
In dirty or dusty environments or if biological growth
occurs in the coolant, it may be necessary to flush the
coolant reservoir. Drain the old coolant, rinse the inside
of the reservoir and circulate rinsing solution through the
coolant system. Add new coolant when cleaning is
finished.
WARNING
Hot coolant can burn skin. Always be sure coolant is NOT
HOT before servicing the cooler.
WARNING
Special precautions have to be taken when
the coolant is removed from the cooler
reservoir. The coolant must not be poured out
into ground water, sewerage, or soil. Read
"Material Safety Data Sheet" (coolant used)
and contact the local Department of
Environmental Protection office to obtain
information on recycling coolant.
The frequency of the maintenance operations may vary
in accordance with the working environment where the
machine is placed.
WARNING
Do not touch electrically live parts.
WARNING
Before the case of machine will be removed, the machine
has to be turned off and the power lead has to be
disconnected from mains socket.
WARNING
Mains supply network must be disconnected from the
machine before each maintenance and service. After
each repair, perform proper tests to ensure safety.
Customer Assistance Policy
The business of The Lincoln Electric Company is
manufacturing and selling high quality welding
equipment, consumables, and cutting equipment. Our
challenge is to meet the needs of our customers and to
exceed their expectations. On occasion, purchasers may
ask Lincoln Electric for advice or information about their
use of our products. We respond to our customers
based on the best information in our possession at that
time. Lincoln Electric is not in a position to warrant or
guarantee such advice, and assumes no liability, with
respect to such information or advice. We expressly
disclaim any warranty of any kind, including any
warranty of fitness for any customer’s particular purpose,
with respect to such information or advice. As a matter of
practical consideration, we also cannot assume any
responsibility for updating or correcting any such
information or advice once it has been given, nor does
the provision of information or advice create, expand or
alter any warranty with respect to the sale of our
products
Lincoln Electric is a responsive manufacturer, but the
selection and use of specific products sold by Lincoln
Electric is solely within the control of, and remains the
sole responsibility of the customer. Many variables
beyond the control of Lincoln Electric affect the results
obtained in applying these types of fabrication methods
and service requirements.
Subject to Change – This information is accurate to the
best of our knowledge at the time of printing. Please
refer to www.lincolnelectric.com for any updated
information.

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Troubleshooting
This Troubleshooting Guide is designed to be used by the machine Owner/Operator. Unauthorized repairs performed on
this equipment may result in danger to the technician and machine operator and will invalidate your factory warranty. For
your safety, please observe all safety notes and precautions detailed in the Safety Section of this manual to avoid
electrical shock or danger while troubleshooting this equipment.
WARNING
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact the
nearest authorized Technical Service Center or Lincoln Electric for technical troubleshooting assistance before you proceed.
LOCATE PROBLEM
(SYMPTOM). POSSIBLE CAUSE RECOMMENDED COURSE OF ACTION
Cooler does not
operate with power
switch on (Switch
pushed to "1" position).
Power cord unplugged.
No power at outlet.
Power cordset damaged.
Water lines blocked or crimped.
Leak in gun or water hoses.
Reservoir empty.
Power switch faulty.
Plug in power cord.
Check outlet circuit breaker.
Repair damaged cord or order new
cordset.
Clear blockage in hose. Avoid kinking or
putting sharp bends in water lines.
Repair leak.
Fill reservoir.
Replace power switch.
Internal water leak. Hose clamp loose on one of internal
hoses.
Internal hose punctured.
Heat exchanger leaking.
Tighten or replace hose clamp.
Replace punctured hose with new hose.
Replace heat exchanger.
Leak at inlet/outlet
connector block.
Loose connector fitting.
Hose clamp loose.
Tighten connector nut. (5/8-18 left hand
thread).
Tighten hose clamp onto hose.
Torch or gun runs hot. Unit placed by area of extreme heat.
Low coolant flow.
No coolant flow.
Fan not operating.
Move unit away from hot air.
See Low Coolant FlowSection.
See No Coolant Flow Section.
Reference fan section.
Fan operates but there
is low coolant flow.
Leak in torch/gun or hoses.
Torch/gun or hoses partially obstructed.
Reservoir empty or very low.
Repair leak.
Clear obstruction.
Refill reservoir.
Fan operates but there
is nocoolant flow.
Pump failure.
Pump seized.
Replace pump.
Replace pump.
Pump operates, but fan
does not.
Fan blade contacting heat exchanger.
Fan motor failure
If fan blades are plastic, replace. Reset
fan clearance and secure fan to motor
shaft.
Replace fan motor with Fan Motor and
Mount Assembly.
Cooler trips outlet
circuit breaker.
Circuit overloaded.
Cooler electrical component failure.
Check outlet circuit breaker.
Replace suppressor assembly and rectifier
bridge inside of cooler.

English 11 English
WEEE
07/06
English
Do not dispose of electrical equipment together with normal waste!
In observance of European Directive 2012/19/EC on Waste Electrical and Electronic Equipment (WEEE)
and its implementation in accordance with national law, electrical equipment that has reached the end of its
life must be collected separately and returned to an environmentally compatible recycling facility. As the
owner of the equipment, you should get information on approved collection systems from our local
representative.
By applying this European Directive you will protect the environment and human health!
Spare Parts
12/05
Part List reading instructions
Do not use this part list for a machine if its code number is not listed. Contact the Lincoln Electric Service
Department for any code number not listed.
Use the illustration of assembly page and the table below to determine where the part is located for your particular
code machine.
Use only the parts marked "X" in the column under the heading number called for in the assembly page (# indicate
a change in this printing).
First, read the Part List reading instructions above, then refer to the "Spare Part" manual supplied with the machine, that
contains a picture-descriptive part number cross-reference.
Authorized Service Shops Location
09/16
The purchaser must contact a Lincoln Authorized Service Facility (LASF) about any defect claimed under Lincoln's
warranty period.
Contact your local Lincoln Sales Representative for assistance in locating a LASF or go to
www.lincolnelectric.com/en-gb/Support/Locator.
Electrical Schematic
Refer to the "Spare Part" manual supplied with the machine.

English 12 English
Accessories
W000010167 FREEZCOOL (coolant)