Lincoln Electric FlexCut 80, Tomahawk 1500 Operator's Manual
Operator’s Manual
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IM10197-B | Issue D ate Oct-16
© Lincoln Global, Inc. All Rights Reserved.
For use with machines having Code Numbers:
12249, 12589
Save for future reference
Date Purchased
Code: (ex: 10859)
Serial: (ex: U1060512345)
FlexCut
™
80
THANK YOU FOR SELECTING
A QUALITY PRODUCT BY
LINCOLN ELEC TRIC.
PLEASE EXAMINE CARTON AND EQUIPMENT FOR
DAMAGE IMMEDIATELY
When this equipment is shipped, title passes to the purchaser
upon receipt by the carrier. Consequently, claims for material
damaged in shipment must be made by the purchaser against the
transportation company at the time the shipment is received.
SAFETY DEPENDS ON YOU
Lincoln arc welding and cutting equipment is designed and built
with safety in mind. However, your overall safety can be increased
by proper installation ... and thoughtful operation on your part.
DO NOT INSTALL, OPERATE OR REPAIR THIS EQUIPMENT
WITHOUT READING THIS MANUAL AND THE SAFETY
PRECAUTIONS CONTAINED THROUGHOUT. And, most importantly,
think before you act and be careful.
WARNING
This statement appears where the information must be followed
exactly to avoid serious personal injury or loss of life.
CAUTION
This statement appears where the information must be followed
to avoid minor personal injury or damage to this equipment.
KEEP YOUR HEAD OUT OF THE FUMES.
DON’T get too close to the arc.
se corrective lenses if necessary
U
to stay a reasonable distance
away from the arc.
READ and obey the Safety Data
Sheet (SDS) and the warning label
that appears on all containers of
welding materials.
USE ENOUGH VENTILATION or
exhaust at the arc, or both, to
keep the fumes and gases from
your breathing zone and the general area.
IN A LARGE ROOM OR OUTDOORS, natural ventilation may be
adequate if you keep your head out of the fumes (See below).
USE NATURAL DRAFTS or fans to keep the fumes away
from your face.
If you de velop unusual symptoms, see your supervisor.
Perhaps the welding atmosphere and ventilation system
should be checked.
WEAR CORRECT EYE, EAR &
BODY PROTECTION
PROTECT your eyes and face with welding helmet
properly fitted and with proper grade of filter plate
(See ANSI Z49.1).
PROTECT your body from welding spatter and arc
flash with protective clothing including woolen
clothing, flame-proof apron and gloves, leather
leggings, and high boots.
PROTECT others from splatter, flash, and glare
with protective screens or barriers.
IN SOME AREAS, protection from noise may be appropriate.
BE SURE protective equipment is in good condition.
Also, wear safety glasses in work area
AT ALL TIMES.
SPECIAL SITUATIONS
DO NOT WELD OR CUT containers or materials which previously
had been in contact with hazardous substances unless they are
properly cleaned. This is extremely dangerous.
DO NOT WELD OR CUT painted or plated parts unless special
precautions with ventilation have been taken. They can release
highly toxic fumes or gases.
Additional precautionary measures
PROTECT compressed gas cylinders from excessive heat,
mechanical shocks, and arcs; fasten cylinders so they cannot fall.
BE SURE cylinders are never grounded or part of an
electrical circuit.
REMOVE all potential fire hazards from welding area.
ALWAYS HAVE FIRE FIGHTING EQUIPMENT READY FOR
IMMEDIATE USE AND KNOW HOW TO USE IT.
Safety 01 of 04 - 06/15/2016
SECTION A:
WARNINGS
CALIFORNIA PROPOSITION 65 WARNINGS
Diesel Engines
Diesel engine exhaust and some of its constituents are known
to the State of California to cause cancer, birth defects, and other
reproductive harm.
Gasoline Engines
The engine exhaust from this product contains chemicals known
to the State of California to cause cancer, birth defects, or other
reproductive harm.
ARC 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.
Read and understand the following safety highlights. For
additional safety information, it is strongly recommended
that you purchase a copy of “Safety in Welding & Cutting ANSI Standard Z49.1” from the American Welding Society,
P.O. Box 351040, Miami, Florida 33135 or CSA Standard
W117.2-1974. A Free copy of “Arc Welding Safety” booklet
E205 is available from the Lincoln Electric Company,
22801 St. Clair Avenue, Cleveland, Ohio 44117-1199.
BE SURE THAT ALL INSTALLATION, OPERATION,
MAINTENANCE AND REPAIR PROCEDURES ARE
PERFORMED ONLY BY QUALIFIED INDIVIDUALS.
SAFETY
1.d. Keep all equipment safety guards, covers
and devices in position and in good repair.
Keep hands, hair, clothing and tools away
from V-belts, gears, fans and all other
moving parts when starting, operating or
repairing equipment.
1.e. In some cases it may be necessary to remove safety guards to
perform required maintenance. Remove guards only when
necessary and replace them when the maintenance requiring
heir removal is complete. Always use the greatest care when
t
working near moving parts.
1.f. Do not put your hands near the engine fan. Do not attempt to
override the governor or idler by pushing on the throttle control
rods while the engine is running.
1.g. To prevent accidentally starting gasoline engines while turning
the engine or welding generator during maintenance work,
disconnect the spark plug wires, distributor cap or magneto wire
as appropriate.
1.h. To avoid scalding, do not remove the radiator
pressure cap when the engine is
hot.
ELECTRIC AND
MAGNETIC FIELDS MAY
BE DANGEROUS
2.a. Electric current flowing through any conductor
causes localized Electric and Magnetic Fields (EMF).
Welding current creates EMF fields around welding cables
and welding machines
FOR ENGINE POWERED
EQUIPMENT.
1.a. Turn the engine off before troubleshooting
and maintenance work unless the
maintenance work requires it to be running.
1.b. Operate engines in open, well-ventilated
areas or vent the engine exhaust fumes outdoors.
1.c. Do not add the fuel near an open flame
welding arc or when the engine is running.
Stop the engine and allow it to cool before
refueling to prevent spilled fuel from
vaporizing on contact with hot engine parts
and igniting. Do not spill fuel when filling
tank. If fuel is spilled, wipe it up and do not start engine until
fumes have been eliminated.
2.b. EMF fields may interfere with some pacemakers, and
welders having a pacemaker should consult their physician
before welding.
2.c. Exposure to EMF fields in welding may have other health effects
which are now not known.
2.d. All welders should use the following procedures in order to
minimize exposure to EMF fields from the welding circuit:
2.d.1. Route the electrode and work cables together - Secure
them with tape when possible.
2.d.2. Never coil the electrode lead around your body.
2.d.3. Do not place your body between the electrode and work
cables. If the electrode cable is on your right side, the
work cable should also be on your right side.
2.d.4. Connect the work cable to the workpiece as close as possible to the area being welded.
2.d.5. Do not work next to welding power source.
Safety 02 of 04 - 06/15/2016
SAFETY
ELECTRIC SHOCK
CAN KILL.
3.a. The electrode and work (or ground) circuits are
electrically “hot” when the welder is on. Do
not touch these “hot” parts with your bare skin or wet clothing.
Wear dry, hole-free gloves to insulate hands.
3.b. Insulate yourself from work and ground using dry insulation.
Make certain the insulation is large enough to cover your full area
f physical contact with work and ground.
o
In addition to the normal safety precautions, if
welding must be performed under electrically
hazardous conditions (in damp locations or while
wearing wet clothing; on metal structures such as
floors, gratings or scaffolds; when in cramped
positions such as sitting, kneeling or lying, if there
is a high risk of unavoidable or accidental contact
with the workpiece or ground) use the following
equipment:
• Semiautomatic DC Constant Voltage (Wire) Welder.
• DC Manual (Stick) Welder.
• AC Welder with Reduced Voltage Control.
3.c. In semiautomatic or automatic wire welding, the electrode,
electrode reel, welding head, nozzle or semiautomatic welding
gun are also electrically “hot”.
3.d. Always be sure the work cable makes a good electrical
connection with the metal being welded. The connection should
be as close as possible to the area being welded.
3.e. Ground the work or metal to be welded to a good electrical (earth)
ground.
3.f. Maintain the electrode holder, work clamp, welding cable and
welding machine in good, safe operating condition. Replace
damaged insulation.
3.g. Never dip the electrode in water for cooling.
3.h. Never simultaneously touch electrically “hot” parts of electrode
holders connected to two welders because voltage
two can be the total of the open circuit voltage of both
welders.
3.i. When working above floor level, use a safety belt to protect
yourself from a fall should you get a shock.
between the
ARC RAYS CAN BURN.
4.a. 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 open arc welding. Headshield and filter lens should
conform to ANSI Z87. I standards.
4.b. Use suitable clothing made from durable flame-resistant material
to protect your skin and that of your helpers from the arc rays.
4.c. 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.
FUMES AND GASES
CAN BE DANGEROUS.
5.a. Welding may produce fumes and gases
hazardous to health. Avoid breathing these fumes and gases.
When welding, 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. When welding hardfacing
(see instructions on container or SDS) or on lead
or cadmium plated steel and other metals or
coatings which produce highly toxic fumes, keep
exposure as low as possible and within applicable
OSHA PEL and ACGIH TLV limits using local
exhaust or mechanical ventilation unless exposure
assessments indicate otherwise. In confined
spaces or in some circumstances, outdoors, a
respirator may also be required. Additional
precautions are also required when welding
on galvanized steel.
5. b. The operation of welding fume control equipment is affected by
various factors including proper use and positioning of the
equipment, maintenance of the equipment and the specific
welding procedure and application involved. Worker exposure
level should be checked upon installation and periodically
thereafter to be certain it is within applicable OSHA PEL and
ACGIH TLV limits.
5.c. Do not weld 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.
3.j. Also see It ems 6.c. and 8.
5.d. Shielding gases used for arc welding can displace air and
cause
injury or death. Always use enough ventilation, especially in
confined areas, to insure breathing air is safe.
5.e. Read and understand the manufacturer’s instructions for this
equipment and the consumables to be used, including the
Safety Data Sheet (SDS) and follow your employer’s safety
practices. SDS forms are available from your welding
distributor or from the manufacturer.
5.f. Also see item 1.b.
Safety 03 of 04 - 06/15/2016
SAFETY
WELDING AND CUTTING
SPARKS CAN CAUSE
FIRE OR EXPLOSION.
6.a. Remove fire hazards from the welding area. If
this is not possible, cover them to prevent the welding sparks
rom starting a fire. Remember that welding sparks and hot
f
materials from welding can easily go through small cracks and
openings to adjacent areas. Avoid welding near hydraulic lines.
Have a fire extinguisher readily available.
6.b. Where compressed gases are to be used at the job site, special
precautions should be used to prevent hazardous situations.
Refer to “Safety in Welding and Cutting” (ANSI Standard Z49.1)
and the operating information for the equipment being used.
6.c. When not welding, make certain no part of the electrode circuit is
touching the work or ground. Accidental contact can cause
overheating and create a fire hazard.
6.d. 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”. For information, purchase “Recommended Safe
Practices for the Preparation for Welding and Cutting of
Containers and Piping That Have Held Hazardous Substances”,
AWS F4.1 from the American Welding Society
(see address above).
6.e. Vent hollow castings or containers before heating, cutting or
welding. They may explode.
6.f. Sparks and spatter are thrown from the welding arc. Wear oil free
protective garments such as leather gloves, heavy shirt, cuffless
trousers, high shoes and a cap over your hair. Wear ear plugs
when welding out of position or in confined places. Always wear
safety glasses with side shields when in a welding area.
6.g. Connect the work cable to the work as close to the welding area
as practical. Work cables connected to the building framework or
other locations away from the welding area increase the
possibility of the welding current passing through lifting chains,
crane cables or other alternate circuits. This can create fire
hazards or overheat lifting chains or cables until they fail.
6.h. Also see item 1.c.
CYLINDER MAY EXPLODE IF
DAMAGED.
7.a. 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,
tc. should be suitable for the application and
e
maintained in good condition.
7.b. Always keep cylinders in an upright position securely chained to
an undercarriage or fixed support.
7.c. 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.
7.d. Never allow the electrode, electrode holder or any other
electrically “hot” parts to touch a cylinder.
7.e. Keep your head and face away from the cylinder valve outlet
when opening the cylinder valve.
7.f. Valve protection caps should always be in place and hand tight
except when the cylinder is in use or connected for use.
7.g. Read and follow the instructions on compressed gas cylinders,
associated equipment, and CGA publication P-l, “Precautions for
Safe Handling of Compressed Gases in Cylinders,” available from
the Compressed Gas Association, 14501 George Carter Way
Chantilly, VA 20151.
FOR ELECTRICALLY
POWERED EQUIPMENT.
8.a. Turn off input power using the disconnect
switch at the fuse box before working on
the equipment.
8.b. Install equipment in accordance with the U.S. National Electrical
Code, all local codes and the manufacturer’s recommendations.
6.I. Read and follow NFPA 51B “Standard for Fire Prevention During
Welding, Cutting and Other Hot Work”, available from NFPA, 1
Batterymarch Park, PO box 9101, Quincy, MA 022690-9101.
6.j. Do not use a welding power source for pipe thawing.
8.c. Ground the equipment in accordance with the U.S. National
Electrical Code and the manufacturer’s recommendations.
Refer to
http://www.lincolnelectric.com/safety
for additional safety information.
Safety 04 of 04 - 06/15/2016
SAFETY
General Precautions
Whereas plasma cutting has been used safely for years, it does
r
equire certain precautions to ensure the safety of the operator and
other people around the equipment. The following safety information
must be provided to each person who will operate, observe, perform
maintenance, or work in close proximity to this piece of equipment.
Installation, operation, and repairs made to the system should only be
performed by qualified personnel. The system makes use of both A.C.
and D.C. circuitry for operation. Fatal shock hazard does exist.
Exercise extreme caution while working on the system. Safety decals
On the power supply should not be removed.
ULTRAVIOLET RADIATION
PROTECTION
Plasma cutting produces ultraviolet radiation similar to a welding arc.
This ultraviolet radiation can cause skin and eye burns. For this
reason, it is essential that proper protection be worn. The eyes are
best protected by using safety glasses or a welding helmet with an
AWS No. 12 shade or ISO 4850 No. 13 shade, which provides
protection up to 400 amperes. All exposed skin areas should be
covered with flame-retardant clothing. The cutting area should also
be prepared in such a way that ultraviolet light does not reflect. Walls
and other surfaces should be painted with dark colors to reduce
reflected light. Protective screens or curtains should be installed to
protect additional workers in the area from ultraviolet radiation.
NOISE PROTECTION
The system generates high noise levels while cutting. Depending on
the size of the cutting area, distance from the cutting torch, and arc
current cutting level, acceptable noise levels may be exceeded.
Proper ear protection should be used as defined by local or national
codes. See Section 2 for noise emission levels.
TOXIC FUME PREVENTION
Care should be taken to ensure adequate ventilation in the cutting
area. Some materials give off toxic fumes that can be harmful or fatal
to people in the vicinity of the cutting area. Also, some solvents
decompose and form harmful gases when exposed to ultraviolet
radiation. These solvents should be removed from the area prior to
cutting. Galvanized metal can produce harmful gases during the
cutting process. Ensure proper ventilation and use breathing
equipment when cutting these materials.
Certain metals coated with or containing lead, cadmium, zinc,
beryllium, and mercury produce harmful toxins. Do not cut these
metals unless all people subjected to the fumes wear proper air
breathing equipment.
ELECTRIC SHOCK PREVENTION
The system uses high open circuit voltages that can be
fatal. Extreme care should be used when operating or
performing maintenance on the system. Only qualified personnel
s
hould service the system. Observe the following guidelines to protect
against electric shock:
• A wall-mounted disconnect switch should be installed and fused
according to local and national electrical codes. The disconnect
switch should be located as close as possible to the power supply
so it can be turned off in case of an emergency.
• The primary power cord should have a 600 volt minimum rating in
order to protect the operator. In addition, it should be sized
according to local and national electrical codes. Inspect the primary
power cord frequently. Never operate the system if the power cord
is damaged in any way.
• Make sure the primary power ground wire is connected at the input
power ground location on the power supply. Make sure the
connection is securely tightened.
• Make sure the positive output (work ground) of the power supply is
connected to a bare metal area on the cutting table. A driven
ground rod should be placed no further than five feet from this
connection. Make sure this ground point on the cutting table is
used as the star ground point for all other ground connections.
• Inspect the torch leads frequently. Never use the system if the leads
are damaged in any way.
• Do not stand in wet, damp areas when operating or performing
maintenance on the system.
• Wear insulated gloves and shoes while operating or performing
maintenance on the system.
• Make sure the system is switched off at the wall disconnect before
servicing the power supply or torch.
• Never change torch consumable parts unless main power to the
system is switched off at the power supply or wall disconnect.
• Do not attempt to remove any parts from beneath the torch when
cutting. Remember that the workpiece forms the current path back
to the power supply.
• Never bypass the safety interlock devices.
• Before removing any of the covers, switch the system off at the wall
disconnect. Wait at least five (5) minutes before removing any
cover. This will give the capacitors inside the unit time to discharge.
See Section 5 for additional safety precautions.
• Never operate the system without all of the covers in place. See
Section 5 for additional safety precautions.
• Preventive maintenance should be performed daily to avoid
possible safety hazards.
2
FLEXCUT™ 80
SAFETY
3
FLEXCUT™ 80
FIRE PREVENTION
When using the system , it is necessary to exercise good
judgment. While cutting, the arc produces sparks that could cause a
fire if they fall on flammable materials. Make sure that all flammable
m
aterials are a suitable distance away from the cutting area. All
flammable liquids should be at least 40 feet away from the cutting
area, preferably stored in a metal cabinet. Plasma cutting should
never be attempted on containers that contain flammable materials.
Make sure that fire extinguishers are readily accessible in the cutting
area.
EXPLOSION PREVENTION
The system uses compressed gases. Use proper
techniques when handling compressed gas cylinders and other
compressed gas equipment. Observe the following guidelines to
protect against explosion:
• Never operate the system in the presence of explosive gases or
other explosive materials.
• Never cut pressurized cylinders or any closed container.
• When using a water table and cutting aluminum under water or
with water touching the underside at the aluminum plate,
hydrogen gas is produced. This hydrogen gas may collect under
the plate and explode during the cutting process. Make sure the
water table is properly aerated to help prevent the accumulation
of hydrogen gas.
• Handle all gas cylinders in accordance with safety standards
published by the U.S. Compressed Gas Association (CGA),
American Welding Society (AWS), Canadian Standards
Association (CSA), or other local or national codes.
• Compressed gas cylinders should be maintained properly. Never
attempt to use a cylinder that is leaking, cracked, or has other
signs of physical damage.
• All gas cylinders should be secured to a wall or rack to prevent
accidental knock over.
• If a compressed gas cylinder is not being used, replace the
protective valve cover.
• Never attempt to repair compressed gas cylinders.
• Keep compressed gas cylinders away from intense heat, sparks,
or flames.
• Clear the compressed gas cylinder connection point by opening
the valve momentarily prior to installing a regulator.
• Never lubricate compressed gas cylinder valves or pressure
regulators with any type of oil or grease.
• Never use a compressed gas cylinder or pressure regulator for
any purpose other than which it is intended.
• Never use a pressure regulator for any gas other than which it is
intended.
• Never use a pressure regulator that is leaking or has other signs
of physical damage.
• Never use any gas hose that is leaking or has other signs of
physical damage.
HEALTH SUPPORT EQUIPMENT
The system creates electric and magnetic fields that
may interfere with certain types of health support
equipment, such as pacemakers. Any person who uses a pacemaker
o
r similar item should consult a doctor before operating, observing,
maintaining, or servicing the system. Observe the following guidelines
to minimize exposure to these electric and magnetic fields:
• Stay as far away from the~power supply, torch, and torch leads
as possible.
• Route the torch leads as close as possible to the work ground
cable.
• Never place your body between the torch leads and work ground
cable. Keep the work ground cable and the torch leads on the
same side of your body.
• Never stand in the center of a coiled up set of torch leads or work
ground cable.
SAFETY
FLEXCUT™ 80
Safety Standards Booklet Index
For further information concerning safety practices to be exercised
with plasma arc cutting equipment, please refer to the following
p
ublications:
1
. AWS Standard AWN, Arc Welding and Cutting Noise, obtainable
from the American Welding Society, 550 NW LeJeune Road, Miami,
FL 33126.
2. AWS Standard C5.2, Recommended Practices for Plasma Arc
Cutting, obtainable from the American Welding Society, 550 NW
LeJeune Road, Miami, FL 33126.
3. AWS Standard FSW, Fire Safety in Welding and Cutting, obtainable
from the American Welding Society, 550 NW LeJeune Road, Miami,
FL 33126.
4. AWS Standard F4.1, Recommended Safe Practices for Preparation
for Welding and Cutting of Containers and Piping, obtainable from
the American Welding Society, 550 NW LeJeune Road, Miami, FL
33126.
5. AWS Standard ULR, Ultraviolet Reflectance of Paint, obtainable
from the American Welding Society, 550 NW LeJeune Road, Miami,
FL 33126.
6. AWS I ANSI Standard Z49.1, Safety in Welding, Cutting, and Allied
Processes, obtainable from the American Welding Society, 550 NW
LeJeune Road, Miami, FL 33126.
7. ANSI Standard Z41.1 , Standard For Men's Safety-Toe Footwear,
obtainable from the American National Standards Institute, 11 West
42nd Street, New York, NY 10036.
8. ANSI Standard Z49.2, Fire Prevention in the Use of Cutting and
Welding Processes, obtainable from the American National
Standards Institute, 11 West 42nd Street, New York, NY 10036.
9. ANSI Standard Z87.1, Safe Practices For Occupation and
Educational Eye and Face Protection, obtainable from the American
National Standards Institute, 11 West 42nd Street, New York, NY
10036.
10. ANSI Standard Z88.2, Respiratory Protection, obtainable from the
American National Standards Institute, 11 West 42nd Street, New
York, NY 10036.
11. OSHA Standard 29CFR 1910.252, Safety and Health Standards,
obtainable. from the U.S. Government Printing Office, Washington,
D.C. 20402.
12. NFPA Standard 51 , Oxygen - Fuel Gas Systems for Welding,
Cutting, and Allied Processes, obtainable from the National Fire
Protection Association, 1 Batterymarch Park, Quincy, MA 02269.
13. NFPA Standard 51 B, Cutting and Welding Processes, obtainable
from the National Fire Protection Association, 1 Batterymarch
Park, Quincy, MA 02269.
14. NFPA Standard 70, National Electrical Code, obtainable from the
National Fire Protection Association, 1 Batterymarch Park, Quincy,
MA 02269.
15. CGA booklet P-1 , Safe Handling of Compressed Gases in
Containers, obtainable from the Compressed Gas Association,
1725 Jefferson Davis Highway, Suite 1004, Arlington, VA 22202.
16. CGA booklet P-14, Accident Prevention in Oxygen-Rich and
Oxygen-Deficient Atmospheres, obtainable from the Compressed
Gas Association, 1725 Jefferson Davis Highway, Suite 1004,
Arlington, VA 22202.
17. CGA booklet TB-3, Hose Line Flashback Arrestors, obtainable from
the Compressed Gas Association, 1725 Jefferson Davis Highway,
Suite 1004, Arlington, VA 22202.
18. CSA Standard W117 .2, Safety in Welding, Cutting, and Allied
P
rocesses, obtainable from Canadian Standards Association, 178
Rexdale Boulevard, Toronto, Ontario M9W IR3, Canada.
19. Canadian Electrical Code Part 1, Safety Standard for Electrical
Installations, obtainable from the Canadian Standards Association,
178 Rexdale Boulevard, Toronto, Ontario M9W 1 R3, Canada.
4
SAFETY
5
F
LEXCUT™ 80
Table Of Contents
Page
General Description....................................................................................................................................
Preheat Temperature For Plasma Cutting ............................................................................................6
D
uty Cycle...........................................................................................................................................6
User Responsibility..............................................................................................................................6
Design Features And Advantages ........................................................................................................6
Installation ..................................................................................................................................Section A
Select Suitable Location...................................................................................................................A-1
Lifting ............................................................................................................................................A-2
Stacking ..........................................................................................................................................A-2
Tilting ............................................................................................................................................A-2
High Frequency Interference Protection ...........................................................................................A-2
Input Connection..............................................................................................................................A-2
Machine Grounding..........................................................................................................................A-2
Input Plug Installation ......................................................................................................................A-3
Power Cord Replacement.................................................................................................................A-3
Engine Driven Generator ..................................................................................................................A-3
Gas Supply Requirements................................................................................................................A-3
Connecting The Gas Supply .............................................................................................................A-4
Output Connections .........................................................................................................................A-4
Operation ..................................................................................................................................Section B
Controls And Settings ......................................................................................................................B-2
Hand Cutting .................................................................................................................................B-4
Hand Cutting Charts.........................................................................................................................B-5
Mechanized Cutting.......................................................................................................................B-10
Mechanized Cutting Charts............................................................................................................B-12
Consumable Life............................................................................................................................B-16
Cut Quality.....................................................................................................................................B-16
Options/Accessories...................................................................................................................Section C
Maintenance ...............................................................................................................................Section D
Daily Procedures .............................................................................................................................D-1
Monthly Procedures.........................................................................................................................D-1
Troubleshooting ..........................................................................................................................Section E
Wiring Diagrams..........................................................................................................................Section F
Wiring Diagram ............................................................................................................................F-1
Dimension Print............................................................................................................................F-2
Parts List .........................................................................................................parts.lincolnelectric.com
Content/details may be changed or updated without notice. For most current Instruction Manuals, go to
parts.lincolnelectric.com.
F
LEXCUT™ 80
GENERAL DESCRIPTION
The FLEXCUT™ 80 is a constant current, continuous control plasma
cutting power source. It provides superior and reliable starting
characteristics, cutting visibility and arc stability. The control system
h
as a safety mechanism to insure that the nozzle and electrode are in
place before cutting or gouging. This is extremely important due to
the high voltages involved.
The FLEXCUT™ 80 comes standard with an air regulator and
pressure gauge. The machine also comes with an input power cord.
Torches and consumables are included with FLEXCUT™ 80
One-Paks
®
, so that cutting can begin right out of the box.
Consumables and torches can also be ordered as individual
packages.
The FLEXCUT™ 80 initiates the plasma arc with a simple, yet
reliable, contact start mechanism. This system eliminates many of the
failure problems associated with hi-frequency start systems.
PREHEAT TEMPERATURE FOR PLASMA CUTTING
Preheat temperature control is not necessary in most applications
when plasma arc cutting or gouging. Preheat temperature control
may be necessary on high carbon alloy steels and heat treated
aluminum for crack resistance and hardness control. Job conditions,
prevailing codes, alloy level, and other considerations may also
require preheat temperature control. The following minimum preheat
temperature is recommended as a starting point. Higher temperatures
may be used as required by the job conditions and/or prevailing
codes. If cracking or excessive hardness occurs on the cut face,
higher preheat temperature may be required. The recommended
minimum preheat temperature for plate thickness up to 1/2"
(12.7mm) is 70°F (21.1°C).
DUTY CYCLE
The duty cycle of a plasma machine is the percentage of time in a 10
minute cycle at which the operator can operate the machine at rated
cutting current.
Example: 80% duty cycle means that it is possible to cut for 8
minutes, followed by 2 minutes of machine idling.
Refer to the Technical Specification section for more information
about the machine rated duty cycles.
USER RESPONSIBILITY
Because design, fabrication, erection and cutting variables affect the
results obtained in applying this type of information, the serviceability
of a product or structure is the responsibility of the user. Variation
s
uch as plate chemistry, plate surface condition (oil, scale), plate
thickness, preheat, quench, gas type, gas flow rate and equipment
may produce results different than those expected. Some adjustments
to procedures may be necessary to compensate for unique individual
conditions. Test all procedures duplicating actual field conditions.
DESIGN FEATURES AND ADVANTAGES
The FLEXCUT™ 80 design makes plasma cutting uncomplicated. This
list of design features and advantages will help you understand the
machine's total capabilities so that you can get maximum use from
your machine.
- Light weight and portable design for industrial use.
- Continuous control, 25 - 80 amps.
- Reliable touch start mechanism for plasma arc initiation.
- Rapid arc restrike for fast cutting of expanded metal.
- Input over voltage protection.
- Bright 5.0 second timed pilot arc.
- Gas purge selection.
- Air regulator and pressure gage included.
- Internal water separator included.
- Parts-in-Place mechanism to detect proper installation of
consumables and torch.
- Preflow/Postflow timing. Preflow is eliminated if arc is reinitiated in Postflow.
- Thermostatic Protection.
- Solid state over-current protection.
- Patented electrode, nozzle and shield cap for optimum cooling,
cut quality and long life.
6
A-1
I
NSTALLATION
F
LEXCUT™ 80
TECHNICAL SPECIFICATIONS K4809-1 FLEXCUT™ 80
INPUT - SINGLE PHASE/THREE PHASE/ 50 / 60 HERTZ
Input Voltage +/- 10%
Input Amperes @ Rated Output
Circuit Breaker (Delay Type)
200V/208V/1/50/60
71
52
80% Duty Cycle
100% Duty Cycle
80 Amps
60 Amps
230V/1/50/60
62
48
80% Duty Cycle
100% Duty Cycle
70 Amps
60 Amps
200V/208V/3/50/60
41
31
80% Duty Cycle
100% Duty Cycle
50 Amps
230V/3/50/60
37
28
80% Duty Cycle
100% Duty Cycle
50 Amps
400V/3/50/60
21
16
80% Duty Cycle
100% Duty Cycle
30 Amps
460V/3/50/60
18
14
80% Duty Cycle
100% Duty Cycle
25 Amps
575V/3/50/60
14
12
80% Duty Cycle
100% Duty Cycle
20 Amps
RATED OUTPUT AT 40° C
Duty Cycle CURRENT VOLTAGE
100% 60A 140 VDC
80%* 80A 140 VDC
RECOMMENDED INPUT WIRE
For all plasma cutting applications
Based on U.S. National Electrical Code
Ambient Temperature 30oC or Less
Input Cord Supplied
with Machine
5OOW, 600V
Type S, SO, ST, STO
or Extra Hard Usage Cord
AWG (IEC) Sizes
Input Supply Wires
#6 (13.3 mm
2
)
1 Ground Wire
#6 (13.3 mm2)
OUTPUT
Current Range Open Circuit Voltage Pilot Current
25 - 80 Amps 270 VDC 20 Amps
PHYSICAL DIMENSIONS
Height Width Depth Weight
17.9 in.
(454 mm)
11.8 in.
(300 mm)
25.4 in.
(645 mm)
96 lbs.
(44 kgs)
TEMPERATURE RANGES
OPERATING TEMPERATURE
RANGE
STORAGE TEMPERATURE
RANGE
-10°C to +40°C -25°C to +55°C
GAS
REQUIRED GAS FLOW RATE
REQUIRED GAS INLET
PRESSURE
300 SCFH min @ 90 PSI
(140 SLPM min @ 6.2 bar)
87.0 to 109.0 PSI
(6.0 Bar. to 7.5 Bar.)
*Derated to 60% on 200/208V 1~ input
A-2
I
NSTALLATION
F
LEXCUT™ 80
R
ead entire Installation Section before installing the
FLEXCUT™ 80 .
SAFETY PRECAUTIONS
ELECTRIC SHOCK CAN KILL.
• Only qualified personnel should install
this machine.
• Turn the input power OFF at the
disconnect switch or fuse box and
discharge input capacitors before working inside the
equipment.
• Do not touch electrically hot parts.
• Turn the FLEXCUT™ 80 Power Switch OFF when
connecting power cord to input power.
SELECT SUITABLE LOCATION
Place the FLEXCUT™ 80 where clean cool air can freely circulate in
through the rear of the machine and out through the front and side
louvers. Maintain at least 10 inches of space on all sides of the unit.
Dirt, dust, or any foreign material that be drawn into the machine
should be kept to a minimum. A properly installed machine will allow
for dependable service and reduce periodic maintenance time. Failure
to observe these precautions may result in excessive operating
temperatures and nuisance shutdowns of the machine.
LIFTING
The FLEXCUT™ 80 power supply should be lifted by two people or a
hoist. In order to prevent damage, the power supply should be lifted
by both handles while keeping the unit as horizontal as possible. Only
hoisting straps approved for the weight of the machine should be
used.
STACKING
The FLEXCUT™ 80 cannot be stacked.
TILTING
The FLEXCUT™ 80 must be placed on a stable, level surface so it will
not topple over.
HIGH FREQUENCY INTERFERENCE PROTECTION
The FLEXCUT™ 80 employs a touch start mechanism for arc initiation
w
hich eliminates high frequency emissions from the machine as
compared with spark gap and solid state type high frequency
generators. Keep in mind though, that these machines may be used in
an environment where other high frequency generating machines are
operating. By taking the following steps, high frequency interference
i
nto the FLEXCUT™ 80 can be minimized:
(
1) Make sure the power supply chassis is connected to a good earth
ground. The work terminal ground does NOT ground the machine
frame.
(2) Keep the work clamp isolated from other work clamps that have
high frequency.
(3) If the work clamp cannot be isolated, then keep the clamp as far
as possible from other work clamp connections.
(4) When the machine is enclosed in a metal building, several good
earth driven grounds around the periphery of the building are
recommended.
INPUT CONNECTION
Only a qualified electrician should connect the input leads to
the FLEXCUT™ 80. Connections should be
made in accordance with all local and
national electrical codes and the
connection diagrams. Failure to do so may
result in bodily injure or death.
The FLEXCUT™ 80 is rated for 208 VAC through 575 VAC input
voltages, single or three phase and 50 or 60 Hertz. Before connecting
the machine to power, be sure the input supply voltage, phase and
frequency all match those listed on the machine’s rating plate.
The FLEXCUT™ 80 automatically senses and adjusts to work with
any input voltage, phase or frequency listed on the rating plate. No
reconnect switch settings are required.
MACHINE GROUNDING
The frame of the welder must be grounded. A ground terminal
marked with a ground symbol is located next to the
input power connection block.
See your local and national electrical codes for
proper grounding methods.
The FLEXCUT™ 80 ON/OFF switch is not intended as a
service disconnect for this equipment. Only a qualified
electrician should connect the input leads to the FLEXCUT
80. Connections should be made in accordance with all
local and national electrical codes. Failure to do so may
result in bodily injury or death.
WARNING
WARNING
WARNING
A-3
I
NSTALLATION
F
LEXCUT™ 80
INPUT PLUG INSTALLATION
A 10 ft. (3m) power cord is provided with the
FLEXCUT™ 80.
Single Phase Input
Connect green lead to ground per National Electrical Code.
Connect black and red leads to power.
Wrap white lead with tape to provide 600V insulation.
Three Phase Input
Connect green lead to ground per National Electric Code.
Connect black, red and white leads to power.
In all cases, the green or green/yellow grounding wire must be
connected to the grounding pin of the plug, usually identified by a
green screw.
Attachment plugs must comply with the Standard for Attachment
Plugs and Receptacles, UL498.
The product is considered acceptable for use only when an
attachment plug as specified is properly attached to the supply cord.
POWER CORD REPLACEMENT
Only a qualified electrician should connect the input leads to
the FLEXCUT 80. Connections should be made in
accordance with all local and national electrical codes and
the connection diagrams. Failure to do so may result in
bodily injure or death.
If the input cord is damaged or needs to be replaced, the new cord
must be wired directly into the switch on the back of the machine.
Be sure to disconnect the cord from input power before working
on the machine. Remove the sheetmetal wraparound from the
machine, loosen the strain relief on the rear of the machine, and
loosen the three input screws on the power switch as well as the
grounding nut. Remove the old cord and replace as shown below. Be
sure to torque the phillips screws on the input power switch and the
grounding nut to 18-25 in-lbs.
ALWAYS CONNECT THE GROUNDING LUG (LOCATED INSIDE THE
MACHINE) TO A PROPER SAFETY (EARTH) GROUND.
ENGINE DRIVEN GENERATOR
For use on engine drives, keep in mind the above input draw
restrictions and the following precaution.
The FLEXCUT™ 80 can be operated on engine driven generators as
long as the 230 volt auxiliary meets the following conditions:
• The AC waveform peak voltage is below 400 volts.
• The AC waveform frequency is between 45 and 65 Hz.
Lincoln Electric Vantage®and Ranger®engine drives meet these
specifications.
Operation of the FLEXCUT™ 80 is not recommended on engine drives
not conforming to these conditions. Such combinations may
overvoltage the FLEXCUT™ 80 power source.
GAS SUPPLY REQUIREMENTS
Supply the FLEXCUT™ 80 with clean, dry, oil-free compressed air or
nitrogen. A high pressure regulator MUST be used with a compressor
or a high pressure cylinder.
Supply pressure must be between 87-110 psi (6 - 7.6 bar) with flow
rates of at least 300 SCFH or 140 SLPM.
Air supply pressure should never exceed 110
psi or damage to the machine may occur!
The FLEXCUT™ 80 contains a built-in filter but depending on the
quality of the supply, additional filtration may be required. Be aware
that shop air systems are prone to oil and moisture contamination. If
shop air is used, it must be cleaned to ISO 8573-1:2010, Class 1.4.1.
Specify dry air when using compressed cylinders. Breathing quality
air conains moisture and should not be used.
A standard nominal 5 micron inline filter is recommended, but for
optimal performance, select a pre-filter with a 3 micron absolute
rating.
CYLINDER could explode if damaged.
• Keep cylinder upright and chained to a fixed support.
• Keep cylinder away from areas where
it could be damaged.
• Never lift machine with cylinder
attached.
• Never allow the cutting torch to touch the cylinder.
• Keep cylinder away from live electrical parts.
• Maximum inlet pressure 110 psi.
WARNING
WARNING
WARNING
BLACK
RED
WHITE
GREEN
CONNECTING THE GAS SUPPLY
Air or gas must be supplied to the FLEXCUT™ 80 with 3/8” inside
diameter tubing and a ¼” NPT quick disconnect coupler.
OUTPUT CONNECTIONS
T
orch
The FLEXCUT™ 80 is sent from the factory with a work clamp
included. The work clamp must be securely connected to the work
piece. If the work piece is painted or extremely dirty it may be
necessary to expose the bare metal in order to make a good electrical
connection.
FlexCut 80 Cut and gouge CapaCities
* Maximum cut speeds are based on results obtained from
Lincoln Electric’s laboratory testing.
Different cutting applications may alter the actual cutting
speed.
A-4
I
NSTALLATION
F
LEXCUT™ 80
MAXIMUM OUTPUT CURRENT
Mechanized Cut Capacity - Material Thickness
Recommended cut capacity at 24 ipm 3/4 in.
Recommended cut capacity at 13 ipm 1 in.
Severance capacity at 8 ipm 1-1/4 in.
Pierce Capacity - Material Thickness
Pierce capacity with programmable torch height control 3/4 in.
Pierce capacity without programmable torch height control 5/8 in.
Maximum Cut Speeds - Mild Steel *
1/4 in. 148 ipm
1/2 in. 52 ipm
3/4 in. 26 ipm
1 in. 14 ipm
1-1/4 in. 9 ipm
Gouge Capacity - Mild Steel
Metal Removal Rate - 80 Amps 19.08 lbs/hr
B-1
O
PERATION
OPERATION
SAFETY PRECAUTIONS
ELECTRIC SHOCK can kill.
• Do not touch electrically live parts
or electrode with skin or wet
clothing.
• Insulate yourself from work and
ground.
• Always wear dry insulating gloves.
FUMES AND GASES can be
dangerous.
• Keep your head out of fumes.
• Use ventilation or exhaust to
remove fumes from breathing zone.
WELDING, CUTTING and
GOUGING SPARKS can cause
fire or explosion
• Keep flammable material away.
• Do not weld, cut or gouge on
containers that have held combustibles.
ARC RAYS can burn.
• Wear eye, ear and body protection.
PLASMA ARC can injure
• Keep your body away from nozzle
and plasma arc.
• Operate the pilot arc with caution.
The pilot arc is capable of burning
the operator, others or even
piercing safety clothing.
Observe additional Safety Guidelines detailed in the beginning
of this manual.
GRAPHIC SYMBOLS THAT APPEAR ON THIS
M
ACHINE OR IN THIS MANUAL
WARNING
FLEXCUT™ 80
INPUT VOLTAGE
WARNING OR CAUTION
HIGH TEMPERATURE
READ INSTRUCTION
MANUAL
CUT
GAS INPUT
SINGLE PHASE
CONTINUOUS PILOT
GOUGE
POWER ON
POWER OFF
PARTS IN PLACE - CONSUMABLES
MISSING OR LOOSE
PROTECTIVE
GROUND
OUTPUT ON
GAS PURGE
A
B-2
CONTROLS AND SETTINGS
FIGURE B.2
FLEXCUT™ 80 front command panel.
When the machine is turned ON, an auto-test is executed; during this
test all of the LEDs on the Control Panel light up.
1. Output Current Knob: For setting the output current used
during cutting. Refer to the Technical Specification section for
more information about the machine’s rated current range.
Air, Gas Purge: The Output Current Knob completely rotated
counterclockwise enables the air purge function.
2. Power ON/OFF green LED: Illuminates when the machine is
ON.
Blinking: Input voltage out of range condition.
The machine is disabled: When the input
voltage returns to the correct range, the
machine will restart automatically.
Note: The Fan may automatically turn OFF if the error condition
persists for more than 2 seconds.
3. Output red LED:
The cutting torch is energized.
Blinking: Internal auxiliary undervoltage
condition. The machine needs to be turned
OFF then ON again to restart.
4. Thermal yellow LED:
The machine is overheated and the output has
been disabled. This usually occurs when the
duty cycle of the machine has been exceeded. Leave
the machine ON to allow the internal components to cool.
When the thermal LED turns off, normal operation is again possible.
5. Gas Pressure yellow LED:
The Input Gas pressure is out of range. The
machine will restart automatically when a correct gas pressure is detected.
To check/adjust the primary gas pressure (see recommended
values in the Technical Specifications of this manual):
• When this LED illuminates, the machine will automatically enter
into Purge mode for 10 seconds.
• During Purge time verify and adjust the gas pressure using
the gas pressure regulator knob.
• If necessary, also verify and adjust the inlet gas pressure to
the unit.
6. Parts In Place (PIP) yellow LED:
Torch consumables are not attached correctly.
To reset the machine:
• Firmly attach the torch shielding Cup by hand. Do not over
tighten.
• After the torch is restored, the machine will restart after 5
seconds. During this time the PIP LED will blink.
Note: When the LED is blinking, if another PIP error occurs or
if the Torch Trigger pushbutton is pressed the machine will
return to the error condition: PIP LED returns to steady ON
and the restoring procedure repeats.
• When the PIP LED turns OFF the machine is ready to operate.
7. Primary Air, Gas Pressure Gauge and Regulator Knob:
Allows the regulation and monitoring of the primary air/gas
pressure.
The inlet primary air/gas pressure is limited by this pressure
regulator, set at the factory to 80 PSI (5.5 bar). To adjust the
air/gas pressure, place the machine in Purge mode.
Pull out on regulator knob and turn to adjust.
8. Cutting Operating Mode Selection: Press the pushbutton to
select the desired operating mode (the LED indicates the selected mode):
• CUT (Upper LED): for cutting or piercing
operations on a solid work piece.
• GRID (Middle LED): for cutting operations on a grid work piece.
• GOUGE (Lower LED): for removing material from a solid work
piece (removing a weld).
The Operating Mode can only be changed with the machine at
idle or during Purge or Post Flow times.
Pressing the pushbutton during Pilot Arc or Cutting will have no
effect.
FLEXCUT™ 80
O
PERATION
A
2
3
4
5
6
8
7
9
1
11
10
B-3
O
PERATION
9. Torch Connection:
Connect handheld or machine torch.
1
0. Work Connection:
Connect cable with work clamp.
11. Remote Connection (14-pin amphenol):
Allows access to Arc Start trigger, Arc Initiated contact and raw
Arc Voltage.
Items 12 thru 15 on the back of the
FLEXCUT™ 80 (See Figure B.3)
12. Fan: Provides machine cooling. When the machine is
switched ON, the fan runs continuously.
13. Power Switch:
Turns the input power to the machine ON/OFF.
14. Input Cord (10 ft.):
Connects the unit to input power.
15. Air or Gas Inlet (1/4” NPT Quick Connect):
Compressed air or gas connection.
FIGURE B.3
FLEXCUT™ 80
14
13
12
15
HAND CUTTING
The FLEXCUT 80 is designed for
Shielded contact. A special
insulated nozzle is used in
conjunction with a special drag
shield. Shielded contact set-ups
are for applications greater than
40 amps.
Gouging Setup:
If gouging metal and not cutting
completely through the part is required, a
special gouging nozzle is used in
conjunction with a gouge shield to
protect the nozzle from molten metal
blow back.
Refer to the torch parts decal located on
your machine or the parts pages at the
back of this manual for the specific part
numbers required for each of these
setups.
ALWAYS USE GENUINE LINCOLN
ELECTRIC ELECTRODES, NOZZLES,
AND EXPENDABLE PARTS FOR THE BEST CUTTING
PERFORMANCE.
H
andle
S28175-1
H
ead
S28176-1
I
nsulation Kit
S28176-4
Electrode
K
P4141-1
Retaining Cap
KP4141-8
Drag Shield
KP4141-14 (40A)
KP4141-15 (80A)
Swirl Ring
KP4141-9
Nozzle
40A - KP4141-4
60A - KP4141-5
80A - KP4141-6
Retaining Cap
KP4141-8
Gouge Shield
KP4141-17
Gouge Nozzle
KP4141-18 (80A)
Standard Gouging
B-4
O
PERATION
FLEXCUT™ 80
Electrode
Swirl Ring
Shielded Nozzle
Retaining Cap
Drag Shield
Shielded Contact
Electrode
Swirl Ring
Gouge Nozzle
Retaining Cap
Gouge Shield
Gouging
TORCH PART CONFIGURATIONS
Different hand held torch configurations are available depending on the cutting or gouging application.
O
PERATION
Hand Cutting Process
The air plasma cutting process uses air or nitrogen as a cutting gas
and to cool the torch.
The FLEXCUT™ 80 provides constant current at the set value,
i
ndependent of the plasma arc length.
W
hen preparing to operate, make sure you have all materials needed
to complete the job and have taken all safety precautions. Install the
machine as instructed in this manual and remember to attach the
work clamp to the work piece.
• With the machine switched OFF, prepare the torch with the
consumables adequate to the desired process (CUT / GRID /
GOUGE).
• Connect the Torch and the work cable to the machine.
• Turn ON the Power Switch on the back of the machine; the Input
Power LED on the front panel will illuminate. The unit is now
ready to operate.
• Verify correct gas pressure using the Gas Purge function.
• Select the desired process using Operating Mode pushbutton.
• Set the desired cutting current using the Output Current knob.
Once the process is completed releasing the torch trigger will
cause the plasma arc to turn off. The gas flow will continue,
allowing the torch to cool.
• Pilot Arc
- The air will flow for a preflow time of 2 seconds and the pilot arc
will start. (Exceptions: after a thermal, the initial trigger will be
ignored. This is a safety feature to prevent the pilot arc from
firing unexpectedly. The other exception is if the machine is in
postflow, then the preflow time is skipped and the pilot arc will
start immediately.)
- The pilot arc will run for 5.0 seconds and shut off unless the arc
is brought in contact with the work and the arc is transferred.
Avoid excessive pilot arc time by transferring the arc to the
workpiece quickly. This will extend consumable life.
- When the arc is brought within 1/8” - 1/4" from the work piece
the arc will transfer, the current will ramp to the setting on the
control panel, and the cut can last indefinitely (or until the duty
cycle of the FLEXCUT™ 80 is exceeded).
•
Pierce the work piece by slowly lowering the torch onto the metal
at a 30º angle away from the operator. This will blow the dross
away from the torch tip. Slowly rotate the torch to vertical
position as the arc becomes deeper.
• Keep moving while cutting. Cut at a steady speed without
p
ausing. Maintain the cutting speed so that the arc lag is 10° to
20° behind the travel direction.
• Use a 5° - 15° leading angle in the direction of the cut.
• Finish the cut to be made and release the trigger.
• If the dross is difficult to remove, reduce the cutting speed. High
speed dross is more difficult to remove than low speed dross.
•
The Post Flow time is proportional to the selected cutting
current and it is divided into 4 time ranges:
Hand Cutting CHarts
The cutting charts shown on the following pages are intended to give
the operator the best starting point to use when making a cut on a
particular material type and thickness. Small adjustments may have
to be made to achieve the best cut. Also, remember that the arc
voltage must be increased as the electrode wears in order to maintain
the correct cutting height.
FLEXCUT™ 80
3030
00
VERVERTICAL ANGLETICAL ANGLE
FOR CUTTINGFOR CUTTING
CUT
90
0
TORCH AT 300ANGLE
TO PIERCE
ROTATE TO
90
0
ANGLE TO CUT
B-5
Selected Cutting Current Post Flow Time
Less than 30A 15 seconds
Between 30A and 40A 20 seconds
Between 40A and 50A 25 seconds
Greater than 50A 30 seconds
MATERIAL PAGE
MILD STEEL B-6
STAINLESS STEEL B-7
ALUMINUM B-8
B-6
O
PERATION
Mild steel Cut CHarts F
lexCut 80; lC105 Hand torCH
TOMAHAWKTM1500
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*Above listed speeds provide best cut quality - best cut angle, least dross, best cut surface finish.
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