Lincoln Electric IM10128 User Manual

®

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AIR VANTAGE 500(AU) KUBOTA

IM10128

June, 2012

For use with machine having Code Number:

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, OPER-

ATE OR REPAIR THIS EQUIP­MENT WITHOUT READING
THIS MANUAL AND THE
SAFETY PRECAUTIONS CON­TAINED THROUGHOUT. And,

most importantly, think before you
act and be careful.

11858

• World's Leader in Welding and Cutting Products • • Sales and Service through Subsidiaries and Distributors Worldwide •

Cleveland, Ohio 44117-1199 U.S.A. TEL: [phone] For Service in U.S. and Canada: Call 1.888.935.3877

FAX: [phone] WEB SITE: lincolnelectric.com For Non-U.S. Service: Email [e-mail]

OPERATORʼS MANUAL

Copyright © Lincoln Global Inc.

i

SAFETY

i

WARNING

CALIFORNIA PROPOSITION 65 WARNINGS

Diesel engine exhaust and some of its constituents
are known to the State of California to cause can­cer, birth defects, and other reproductive harm.

The Above For Diesel Engines

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.

The engine exhaust from this product contains
chemicals known to the State of California to cause
cancer, birth defects, or other reproductive harm.

The Above For Gasoline Engines

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 n ear 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.

____________________________________________________

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 their removal is complete.
Always use the greatest care when 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.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

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.

___________________________________________________

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.

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.

ii

SAFETY

ii

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 of physical contact with work and ground.

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
between the 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.

3.j. Also see Items 6.c. and 8.

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 ma y 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 with electrodes which require special
ventilation such as stainless or hard facing (see
instructions on container or MSDS) 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. In confined spaces or in some circum­stances, outdoors, a respirator may 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
coming from degreasing, cleaning or spraying operations.
The heat and rays of the arc can react with solvent vapors
form phosgene, a highly toxic gas, and other irritating prod­ucts.

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.

vapors

to

5.e. 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.

5.f. Also see item 1.b.

iii

SAFETY

iii

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

Remember that welding sparks and hot
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
been “cleaned”. For information, purchase “Recommended
Safe Practices for the
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.

Sparks and spatter are thrown from the welding arc. Wear oil

6.f.
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.

the welding sparks from starting a fire.

though

they have

Preparation

for Welding and Cutting of

CYLINDER may explode
if damaged.

7.a. Use on ly com pr essed ga s cyli nd ers
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.

7.b. Alway s 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. Re ad and foll ow the inst ru ctions o n c ompressed gas
cylinders, associated equipment, and CGA publication P-l,
“Precautions for Safe Handling of Compressed Gases in
Cylinders,” available from the Compressed Gas Association
1235 Jefferson Davis Highway, Arlington, VA 22202.

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. Ins tall equipment in accordance with the U.S. National
Electrical Code, all local codes and the manufacturer’s
recommendations.

8.c. Ground the equipment in accordance with the U.S. National
Electrical Code 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.

Refer to http://www.lincolnelectric.com/safety for additional safety information.

iv

SAFETY

iv

PRÉCAUTIONS DE SÛRETÉ

Pour votre propre protection lire et observer toutes les instructions
et les précautions de sûreté specifiques qui parraissent dans ce
manuel aussi bien que les précautions de sûreté générales suiv­antes:

Sûreté Pour Soudage A LʼArc

1. Protegez-vous contre la secousse électrique:

a. Les circuits à lʼélectrode et à la piéce sont sous tension

quand la machine à souder est en marche. Eviter toujours
tout contact entre les parties sous tension et la peau nue
ou les vétements mouillés. Porter des gants secs et sans
trous pour isoler les mains.

b. Faire trés attention de bien sʼisoler de la masse quand on

soude dans des endroits humides, ou sur un plancher
metallique ou des grilles metalliques, principalement dans
les positions assis ou couché pour lesquelles une grande
partie du corps peut être en contact avec la masse.

c. Maintenir le porte-électrode, la pince de masse, le câble

de soudage et la machine à souder en bon et sûr état
defonctionnement.

d.Ne jamais plonger le porte-électrode dans lʼeau pour le

refroidir.

e. Ne jamais toucher simultanément les parties sous tension

des porte-électrodes connectés à deux machines à souder
parce que la tension entre les deux pinces peut être le
total de la tension à vide des deux machines.

f. Si on utilise la machine à souder comme une source de

courant pour soudage semi-automatique, ces precautions
pour le porte-électrode sʼapplicuent aussi au pistolet de
soudage.

6. Eloigner les matériaux inflammables ou les recouvrir afin de
prévenir tout risque dʼincendie dû aux étincelles.

7. Quand on ne soude pas, poser la pince à une endroit isolé de
la masse. Un court-circuit accidental peut provoquer un
échauffement et un risque dʼincendie.

8. Sʼassurer que la masse est connectée le plus prés possible
de la zone de travail quʼil est pratique de le faire. Si on place
la masse sur la charpente de la construction ou dʼautres
endroits éloignés de la zone de travail, on augmente le risque
de voir passer le courant de soudage par les chaines de lev­age, câbles de grue, ou autres circuits. Cela peut provoquer
des risques dʼincendie ou dʼechauffement des chaines et des
câbles jusquʼà ce quʼils se rompent.

9. Assurer une ventilation suffisante dans la zone de soudage.
Ceci est particuliérement important pour le soudage de tôles
galvanisées plombées, ou cadmiées ou tout autre métal qui
produit des fumeés toxiques.

10. Ne pas souder en présence de vapeurs de chlore provenant
dʼopérations de dégraissage, nettoyage ou pistolage. La
chaleur ou les rayons de lʼarc peuvent réagir avec les vapeurs
du solvant pour produire du phosgéne (gas fortement toxique)
ou autres produits irritants.

11. Pour obtenir de plus amples renseignements sur la sûreté,
voir le code “Code for safety in welding and cutting” CSA
Standard W 117.2-1974.

2. Dans le cas de travail au dessus du niveau du sol, se protéger
contre les chutes dans le cas ou on recoit un choc. Ne jamais
enrouler le câble-électrode autour de nʼimporte quelle partie
du corps.

3. Un coup dʼarc peut être plus sévère quʼun coup de soliel,
donc:

a. Utiliser un bon masque avec un verre filtrant approprié

ainsi quʼun verre blanc afin de se protéger les yeux du ray­onnement de lʼarc et des projections quand on soude ou
quand on regarde lʼarc.

b. Porter des vêtements convenables afin de protéger la

peau de soudeur et des aides contre le rayonnement de
lʻarc.

c. Protéger lʼautre personnel travaillant à proximité au

soudage à lʼaide dʼécrans appropriés et non-inflammables.

4. Des gouttes de laitier en fusion sont émises de lʼarc de
soudage. Se protéger avec des vêtements de protection libres
de lʼhuile, tels que les gants en cuir, chemise épaisse, pan­talons sans revers, et chaussures montantes.

5. Toujours porter des lunettes de sécurité dans la zone de
soudage. Utiliser des lunettes avec écrans lateraux dans les

zones où lʼon pique le laitier.

PRÉCAUTIONS DE SÛRETÉ POUR
LES MACHINES À SOUDER À
TRANSFORMATEUR ET À
REDRESSEUR

1. Relier à la terre le chassis du poste conformement au code de
lʼélectricité et aux recommendations du fabricant. Le dispositif
de montage ou la piece à souder doit être branché à une
bonne mise à la terre.

2. Autant que possible, Iʼinstallation et lʼentretien du poste seront
effectués par un électricien qualifié.

3. Avant de faires des travaux à lʼinterieur de poste, la debranch­er à lʼinterrupteur à la boite de fusibles.

4. Garder tous les couvercles et dispositifs de sûreté à leur
place.

Thank You

vv

for selecting a QUALITY product by Lincoln Electric. We want you
to take pride in operating this Lincoln Electric Company product

••• as much pride as we have in bringing this product to you!

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 customerʼs 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.

CUSTOMER ASSISTANCE POLICY

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.

Please record your equipment identification information below for future reference. This information can be
found on your machine nameplate.

Product _________________________________________________________________________________

Model Number ___________________________________________________________________________

Code Number or Date Code_________________________________________________________________

Serial Number____________________________________________________________________________

Date Purchased___________________________________________________________________________

Where Purchased_________________________________________________________________________

Whenever you request replacement parts or information on this equipment, always supply the information you
have recorded above. The code number is especially important when identifying the correct replacement parts.

On-Line Product Registration

- Register your machine with Lincoln Electric either via fax or over the Internet.

• For faxing: Complete the form on the back of the warranty statement included in the literature packet
accompanying this machine and fax the form per the instructions printed on it.

• For On-Line Registration: Go to our

Your Product”. Please complete the form and submit your registration.

Read this Operators Manual completely before attempting to use this equipment. Save this manual and keep it
handy for quick reference. Pay particular attention to the safety instructions we have provided for your protection.
The level of seriousness to be applied to each is explained below:

WEB SITE at www.lincolnelectric.com. Choose “Support” and then “Register

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.

vi

TABLE OF CONTENTS

Page

Installation.......................................................................................................................Section A

Technical Specifications.......................................................................................................A-1

Safety Precautions ........................................................................................................A-2

VRD (Voltage Reduction Device)..................................................................................A-2

Location and Ventilation................................................................................................A-2

Storing...........................................................................................................................A-2

Stacking ........................................................................................................................A-2

Angle of Operation ........................................................................................................A-2

Lifting.............................................................................................................................A-3

High Altitude Operation .................................................................................................A-3

High Temperature Operation ........................................................................................A-3

Towing...........................................................................................................................A-3

Vehicle Mounting...........................................................................................................A-3

Pre-Operation Engine and Compressor Service ..................................................................A-4

Oil..................................................................................................................................A-4

Fuel and Fuel Cap.........................................................................................................A-4

Engine Coolant System.................................................................................................A-4

Battery Connections......................................................................................................A-4

Muffler Outlet Pipe ........................................................................................................A-5

Spark Arrestor ...............................................................................................................A-5

Air Cleaner Inlet Hood ..........................................................................................................A-5

Welding Terminals................................................................................................................A-5

Welding Output Cables .................................................................................................A-5

Machine Grounding.......................................................................................................A-5

Remote Control ....................................................................................................................A-6

Auxiliary Power Receptacles and Plugs, Standby Power Connections ...............................A-6

Connection of Lincoln Electric Wire Feeders................................................................A-7, A-8

Electrical Device used with this Product...............................................................................A-9

________________________________________________________________________________

vi

Operation.........................................................................................................................Section B

Safety Precautions ..............................................................................................................B-1

General Description..............................................................................................................B-1

For Auxiliary Power ..............................................................................................................B-1

Engine Operation..................................................................................................................B-1

Add Fuel ...............................................................................................................................B-1

Break in Period.....................................................................................................................B-1

Recommended Application - Welder, Air Compressor and Generator.................................B-2

Welder Controls .............................................................................................................B-3,B-4

Engine Controls .............................................................................................................B-5,B-6

Starting and Stopping the Engine...........................................................................B-6,B-7

Welding Operation................................................................................................................B-7

Duty Cycle and Electrode Information...........................................................................B-7

Constant Current (Stick) Welding.........................................................................................B-7

Downhill Pipe (Stick) Welding ...................................................................................... B-8

TIG Welding ..................................................................................................................B-8

Wire Welding-CV...........................................................................................................B-9

Arc Gouging ..................................................................................................................B-9

Typical Current Ranges for Tungsten Electrodes .........................................................B-9

Paralleling...........................................................................................................................B-10

Auxiliary Power...................................................................................................................B-10

Simultaneous Welding and Power Loads ...................................................................B-10

Extension Cord Recommendations.............................................................................B-10

________________________________________________________________________________

Accessories.....................................................................................................Section C

Field Installed Options / Accessories ...............................................................................C-1

________________________________________________________________________________

vii

TABLE OF CONTENTS

Maintenance......................................................................................................Section D

Safety Precautions ................................................................................................D-1

Routine Maintenance, Daily and Weekly ..............................................................D-1

Compressor Maintenance .....................................................................................D-1

Vehicle Mounted Air Compressors........................................................................D-1

Engine Maintenance..............................................................................................D-1

Air Filter .................................................................................................................D-1

Service Instructions And Installation Tips for Engine Air Filter..............................D-2

Engine Oil Change..........................................................................................D-3

Engine Oil Filter Change.................................................................................D-3

Air Cleaner .....................................................................................................D-3

Cooling System .....................................................................................................D-4

Fan Belt...........................................................................................................D-4

Fuel .................................................................................................................D-4

Bleeding the Fuel System ...............................................................................D-4

Fuel Filter ........................................................................................................D-5

Engine Adjustment ..........................................................................................D-5

Battery Maintenance .......................................................................................D-5

Servicing Optional Spark Arrestor ...................................................................D-5

Welder / Generator Maintenance ........................................................................D-6

Storage ...........................................................................................................D-6

Cleaning..........................................................................................................D-6

Brush Removal and Replacement ..................................................................D-6

________________________________________________________________________

Troubleshooting..............................................................................................Section E

________________________________________________________________________

Connection Diagrams, Wiring Diagrams and Dimension Print...................Section F

________________________________________________________________________

Parts List.....................................................................................................P-714 Series

________________________________________________________________________

vii

A-1

INSTALLATION

TECHNICAL SPECIFICATIONS - AIR VANTAGE®500(AU) KUBOTA (K3212-1 )

INPUT - DIESEL ENGINE

Make/Model Description Speed (RPM) Displacement Starting Capacities

cu. in. (ltrs.) System

A-1

KUBOTA 58 HP (43.2kw) starter (94.6 L)
V3600-T 1850 RPM Full Load 1850

4 cylinder High Idle 1850 220.9(3.62)

Bore x Stroke inch (mm)

Diesel Engine

Low Idle 1425

3.86 X 4.72

(98 x 120mm) 2.6gal. (9.8L)

12VDC Battery &

Fuel: 25 gal.

Oil: 3.5gal. (13.2L)

Radiator Coolant:

RATED OUTPUT @ 104°F(40°C) - WELDER

Duty Cycle Welding Output Volts at Rated Amps

100% 500 Amps (DC multi-purpose) 40 Volts

60% 550 Amps (DC multi-purpose) 36 volts
50% 575 Amps (DC multi-purpose) 35 volts

OUTPUT @ 104°F(40°C) - WELDER AND GENERATOR

Welding Range

30 - 575 Amps CC/CV

20 - 250 Amps TIG

Open Circuit Voltage

60 Max OCV @ 1850 RPM

Auxiliary Power

2 x 240 VAC Receptacles

2 x 3600 WATTS, 60 Hz., Single Phase

(1)

COMPRESSOR SPECIFICATIONS

Compressor Model

VMAC™

S700066

Height

42.0 in 32.7 in. 63.1 in. 1730 lbs.

(1066.8 mm) (830.1mm) (1603mm) (785kg)

1. Output rating in watts is equivalent to volt-amperes at unity power factor.
Output voltage is within +/- 10% at all loads up to rated capacity. When welding, available auxiliary power will be reduced.

2. Top of Enclosure, add 7.0” (177.8mm) for exhaust pipe.

Description Delivery Maximum System Compressor Capacities

Direct-Drive Rotary

Screw Air Compressor 60 CFM @ 100PSI

(2)

High Idle Mode: 150 PSI

(28.3 Ltr/sec. @

7.0 kg/cm)

Low Idle Mode: High Temperature

40 CFM @ 100PSI Automatic Shutdown

(18.9 Ltr/sec. @ 290° F (143°C)

7.0 kg/cm)

PHYSICAL DIMENSIONS

Width Depth Weight

Pressure Profection

Safety Relief Valve

(10.5 kg/cm2) 200 PSI

(10.5 kg/cm2)

(Approx)

1.3 gal.(5.0 ltrs)

AIR VANTAGE®500(AU) KUBOTA

A-2

INSTALLATION

A-2

SAFETY PRECAUTIONS

WARNING

Do not attempt to use this equipment until you
have thoroughly read the engine manufacturerʼs
manual supplied with your welder. It includes
important safety precautions, detailed engine
starting, operating and maintenance instructions,
and parts lists.

------------------------------------------------------------------------

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.

------------------------------------------------------------------------

ENGINE EXHAUST can kill.

• Use in open, well ventilated areas or
vent exhaust outside.

------------------------------------------------------------------------

MOVING PARTS

•

Do not operate with doors open or
guards off.

• Stop engine before servicing.

• Keep away from moving parts.

------------------------------------------------------------------------

See additional warning information at

front of this operatorʼs manual.

Only qualified personnel should install,
use, or service this equipment.

VRD (VOLTAGE REDUCTION DEVICE)

The VRD feature provides additional safety in the CC-Stick
mode especially in an environment with a higher risk of
electric shock such as wet areas and hot humid sweaty
conditions.

The VRD reduces the OCV (Open Circuit Voltage) at the
welding output terminals while not welding to less than 13V
DC when the resistance of the output circuit is above 200Ω
(ohms).

The VRD requires that the welding cable connections be
kept in good electrical condition because poor connections
will contribute to poor starting. Having good electrical con­nections also limits the possibility of other safety issues
such as heat-generated damage, burns and fires.

The machine is shipped with the VRD switch in the “Off”
position. To turn it “On” or “Off”.

• Turn the engine “Off”.

• Disconnect the negative battery cable.

• Lower the control panel by removing 4 front
panel screws.

• Place the VRD switch in the “On” or “Off” position.
(See Figure A.1)

With the VRD switch in the “On” position, the VRD lights
are enabled.

(See Figure A.1)

 can injure.

LOCATION AND VENTILATION

The welder should be located to provide an unrestrict­ed flow of clean, cool air to the cooling air inlets and to
avoid restricting the cooling air outlets. Also, locate
the welder so that the engine exhaust fumes are prop­erly vented to an outside area.

CAUTION

DO NOT MOUNT OVER COMBUSTIBLE SURFACES
Where there is a combustible surface directly
under stationary or fixed electrical equipment, that
surface should be covered with a steel plate at
least .06”(1.6mm) thick, which should extend not
less than 5.90”(150mm) beyond the equipment on
all sides.

------------------------------------------------------------------------

STORING

1. Store the machine in a cool, dry place when it is
not in use. Protect it from dust and dirt. Keep it
where it canʼt be accidentally damaged from con­struction activities, moving vehicles, and other
hazards.

2. Drain the engine oil and refill with fresh 10W30
oil. Run the engine for about five minutes to cir­culate oil to all the parts. See the MAINTE­NANCE section of this manual for details on
changing oil.

3. Remove the battery, recharge it, and adjust the
electrolyte level. Store the battery in a dry, dark
place.

STACKING

AIR VANTAGE®500(AU) KUBOTA machines cannot
be stacked.

ANGLE OF OPERATION

To achieve optimum engine performance the
TAGE®500(AU) KUBOTA
tion. The maximum angle of operation for the VMAC
Compressor and KUBOTA engine is 20 degrees con­tinues in all directions and 30 degrees intermittent
(less than 10 minutes). When operating the welder at
an angle, provisions must be made for checking and
maintaining the oil level at the normal (FULL) oil
capacity. Also the effective fuel capacity will be slightly
less than the specified 25 gal.(94.6 ltrs.).

should be run in a level posi-

AIR VAN-

AIR VANTAGE®500(AU) KUBOTA

A-3

INSTALLATION

A-3

LIFTING

The

AIR VANTAGE®500(AU) KUBOTA

lift bale should be
used to lift the machine. The Air Vantage 500 is
shipped with the lift bale retracted. Before attempting
to lift the

AIR VANTAGE®500(AU) KUBOTA

the lift bale
must be secured in a raised position. Secure the lift
bale as follows:

a. Open the engine compartment door.

b. Locate the 2 access holes on the upper middle

region of compartment wall just below the lift
bale.

c. Use the lifting strap to raise the lift bale to the

full upright position. This will align the mount­ing holes on the lift bale with the access holes.

d. Secure the lift bale with 2 thread forming

screws. The screws are provided in the
shipped loose parts bag.

WARNING

• Lift only with equipment of ade­quate lifting capacity.

• Be sure machine is stable when lift­ing.

• Do not lift this machine using lift
bail if it is equipped with a heavy
accessory such as trailer or gas
cylinder.

FALLING • Do not lift machine if lift bail is

EQUIPMENT can damaged.

cause injury. • Do not operate machine while

suspended from lift bail.

--------------------------------------------------------------------------------

HIGH ALTITUDE OPERATION

At higher altitudes, output derating may be necessary.
For maximum rating, derate the welder output 5% for
every 500 meters (1640ft.) above 400 meters (1312
ft.).

Contact a KUBOTA Service Representative for any
engine adjustments that may be required.

HIGH TEMPERATURE OPERATION

At temperatures above 40°C (104°F), output voltage
derating may be necessary. For maximum output cur­rent ratings, derate welder voltage rating 2 volts for
every 10°C (21°F) above 40°C (104°F).

TOWING

The recommended trailer for use with this equipment
for road, in-plant and yard towing by a vehicle
Lincolnʼs K2641-2. If the user adapts a non-Lincoln
trailer, he must assume responsibility that the method
of attachment and usage does not result in a safety
hazard nor damage the welding equipment. Some of
the factors to be considered are as follows:

1. Design capacity of trailer vs. weight of Lincoln
equipment and likely additional attachments.

2. Proper support of, and attachment to, the base of
the welding equipment so that there will be no
undue stress to the trailerʼs framework.

3. Proper placement of the equipment on the trailer
to insure stability side to side and front to back
when being moved and when standing by itself.

4. Typical conditions of use, such as travel speed,
roughness of surface on which the trailer will be
operated, and environmental conditions.

5. Proper preventative maintenance of trailer.

6. Conformance with federal, state and local laws

(1)

Consult applicable federal, state and local laws
regarding specific requirements for use on public
highways.

(1)

(1)

VEHICLE MOUNTING

WARNING

Improperly mounted concentrated loads may
cause unstable vehicle handling and tires or other
components to fail.

• Only transport this Equipment on serviceable
vehicles which are rated and designed for such
loads.

• Distribute, balance and secure loads so vehicle
is stable under conditions of use.

• Do not exceed maximum rated loads for compo­nents such as suspension, axles and tires.

• Mount equipment base to metal bed or frame of
vehicle.

• Follow vehicle manufactureʼs instructions.

--------------------------------------------------------------------------------

is

.

AIR VANTAGE®500(AU) KUBOTA

A-4

INSTALLATION

PRE-OPERATION ENGINE AND COM­PRESSOR SERVICE

READ the engine and compressor operating and
maintenance instructions supplied with this machine.

WARNING

A-4

ENGINE COOLANT

WARNING

HOT COOLANT can burn skin.

•Do not remove cap if radiator is hot.

• Keep hands away from the engine
muffler or HOT engine parts.

• Stop engine and allow to cool before
fuelling.

• Do not smoke when fuelling.

• Fill fuel tank at a moderate rate and do not over­fill.

• Wipe up spilled fuel and allow fumes to clear
before starting engine.

• Keep sparks and flame away from tank.

--------------------------------------------------------------------------------

OIL

The AIR VANTAGE®500(AU) KUBOTA is shipped
with the engine crankcase filled with high quality SAE
10W-30 oil (API class CD or better). Check the engine
and compressor oil levels before starting the engine. If
it is not up to the full mark on the dip stick, add oil as
required. Check the oil level every four hours of run­ning time during the first 35 running hours. Refer to
the engine and compressor Operatorʼs Manuals for
specific oil recommendations and break-in informa­tion. The oil change interval is dependent on the quali­ty of the oil and the operating environment. Refer to
the engine and compressor Operatorʼs Manuals for
the proper service and maintenance intervals.

FUEL

USE DIESEL FUEL ONLY
Low Sulphur fuel or ultra low sulphur fuel in USA and

CANADA only.

• Fill the fuel tank with clean, fresh diesel fuel.
The capacity of the fuel tank is approximately 25
gallons (95 liters). See engine Operatorʼs Manual
for specific fuel recommendations. Running out
of fuel may require bleeding the fuel injection
pump. NOTE: Before starting the engine, open
the fuel shutoff valve (pointer to be in line with
hose).

--------------------------------------------------------------------------------

FUEL CAP

--------------------------------------------------------------------------------

The welder is shipped with the engine and radiator
filled with a 50% mixture of ethylene glycol and water.
See the MAINTENANCE section and the engine
Operatorʼs Manual for more information on coolant.

BATTERY CONNECTION

GASES FROM BATTERY can explode.

• Keep sparks, flame and cigarettes
away from battery.

To prevent EXPLOSION when:

• INSTALLING A NEW BATTERY — disconnect
negative cable from old battery first and connect
to new battery last.

• CONNECTING A BATTERY CHARGER — remove
battery from welder by disconnecting negative
cable first, then positive cable and battery clamp.
When reinstalling, connect negative cable last.
Keep well ventilated.

• USING A BOOSTER — connect positive lead to
battery first then connect negative lead to nega­tive battery lead at engine foot.

BATTERY ACID can burn eyes and skin.

• Wear gloves and eye protection and be
careful when working near battery.

• Follow instructions printed on battery.

IMPORTANT: To prevent ELECTRICAL DAMAGE

WHEN:

a) Installing new batteries.

b) Using a booster.

Use correct polarity — Negative Ground.

Remove the plastic cap covering from the Fuel Tank
Filler neck and install the Fuel Cap.

AIR VANTAGE®500(AU) KUBOTA

A-5

The AIR VANTAGE®500(AU) KUBOTA is shipped
with the negative battery cable disconnected. Before
you operate the machine, make sure the Engine
Switch is in the OFF position and attach the discon­nected cable securely to the negative (-) battery termi­nal.

Remove the insulating cap from the negative battery
terminal. Replace and tighten negative battery cable
terminal. NOTE: This machine is furnished with a wet
charged battery; if unused for several months, the bat­tery may require a booster charge. Be sure to use the
correct polarity when charging the battery.

INSTALLATION

MUFFLER OUTLET PIPE

Remove the plastic plug covering the muffler outlet
tube. Using the clamp provided secure the outlet pipe
to the outlet tube with the pipe positioned such that it
will direct the exhaust in the desired position.

SPARK ARRESTOR

Some federal, state or local laws may require that
petrol or diesel engines be equipped with exhaust
spark arrestors when they are operated in certain
locations where unarrested sparks may present a fire
hazard. The standard muffler included with this welder
has an internal spark arrestor. When required by local
regulations, a suitable spark arrestor, must be
installed and properly maintained.

CAUTION

An incorrect arrestor may lead to damage to the
engine or adversely affect performance.

--------------------------------------------------------------------------------

AIR CLEANER INLET HOOD

Remove the plastic plug covering the air cleaner inlet.
Install the air cleaner inlet hood to the air cleaner.

WELDING TERMINALS

The AIR VANTAGE®500(AU) KUBOTA is equipped
with a toggle switch for selecting "hot" welding termi­nals when in the "WELD TERMINALS ON" position or
"cold" welding terminals when in the "REMOTELY
CONTROLLED" position.

WELDING OUTPUT CABLES

With the engine off, route the electrode and work
cables thru the strain relief bracket provided on the
front of the base and connect to the terminals provid­ed. These connections should be checked periodically
and tightened if necessary.

A-5

Listed in Table A.1 are copper cable sizes recom­mended for the rated current and duty cycle. Lengths
stipulated are the distance from the welder to work
and back to the welder again. Cable sizes are
increased for greater lengths primarily for the purpose
of minimizing cable voltage drop.

Table A.1 Combined Length of Electrode and

Work Cables.

TOTAL COMBINED LENGTH OF

ELECTRODE AND WORK CABLES

Cable Length

0-150 Ft. (0-46 meters)
150-200 Ft. (46-61 meters)
200-250 Ft. (61-76 meters)

Cable Size for

500 Amps

100% Duty Cycle

3 / 0 AWG
3 / 0 AWG
4 / 0 AWG

MACHINE GROUNDING

Because this portable engine driven welder creates its
own power, it is not necessary to connect its frame to
an earth ground, unless the machine is connected to
premises wiring (home, shop, etc.).

To prevent dangerous electric shock, other equipment
to which this engine driven welder supplies power
must:

WARNING

• Be grounded to the frame of the welder using a
grounded type plug or be double insulated.

• Do not ground the machine to a pipe that carries
explosive or combustible material.

--------------------------------------------------------------------------------

When this welder is mounted on a truck or trailer, its
frame must be securely connected to the metal frame
of the vehicle. When this engine driven welder is con­nected to premises wiring such as that in a home or
shop, its frame must be connected to the system earth
ground. See further connection instructions in the sec­tion entitled “Standby Power Connections” as well as
the article on grounding in the latest National
Electrical Code and the local codes.

In general, if the machine is to be grounded, it should
be connected with a #8 or larger copper wire to a solid
earth ground such as a metal ground stake going into
the ground for at least 10 Feet or to the metal frame­work of a building which has been effectively ground­ed.

The National Electric Code lists a number of alternate
means of grounding electrical equipment. A machine
grounding stud marked with the symbol is provided
on the front of the welder.

AIR VANTAGE®500(AU) KUBOTA

A-6

INSTALLATION

A-6

REMOTE CONTROL

The AIR VANTAGE®500(AU) KUBOTA is equipped
with a 6-pin and a 14-pin connector. The 6-pin con­nector is for connecting the K857 or K857-1 Remote
Control or for TIG welding, the K870 foot Amptrol or
the K963-3 hand Amptrol. When in the CC-STICK,
ARC GOUGING or CV-WIRE modes and when a
remote control is connected to the 6-pin Connector,
the auto-sensing circuit automatically switches the
OUTPUT control from control at the welder to remote
control.

When in TOUCH START TIG mode and when a
Amptrol is connected to the 6-Pin Connector, the
OUTPUT dial is used to set the maximum current
range of the CURRENT CONTROL of the Amptrol.

When in the DOWNHILL PIPE mode and when a
remote control is connected to the 6-Pin or 14-Pin
connector, the output control is used to set the max­imum current range of the remote.

EXAMPLE: When the OUTPUT CONTROL on the
welder is set to 200 amps the current range on the
remote control will be 40-200 amps, rather than the
full 40-300 amps. Any current range that is less than
the full range provides finer current resolution for more
fine tuning of the output.

AUXILIARY POWER RECEPTACLES

The auxiliary power capacity of the AIR VANTAGE®
500(AU) KUBOTA is 7.2KW of 60Hz single phase
power protected by an RCD (Residual Current
Device) and 2 single phase 15 amp circuit breakers.

The auxiliary power capacity in watts equivalent to
volt-amperes at unity power factor.
This model has:

1 Residual Current Device (RCD) protection (30mA).

2 x 1 phase 15 amp Circuit Breakers.
2 x 1 phase 240 volt 15 amp per outlet.

Note: The single-phase outlets are from different

phases and cannot be paralleled.

The auxiliary power receptacles should only be used
with three grounded type plugs or approved double
insulated tools. The current rating of any plug used
with the system must be at least equal to the current
capacity of the associated receptacle.

STANDBY POWER CONNECTIONS

The AIR VANTAGE® 500(AU) KUBOTA is suitable for
temporary, standby or emergency power using the
engine manufacturerʼs recommended maintenance
schedule.

In the CV-WIRE mode, if the feeder being used has a
voltage control when the wire feeder control cable is
connected to the 14-Pin Connector, the auto-sensing
circuit automatically makes OUTPUT CONTROL inac­tive and the wire feeder voltage control active.
Otherwise, the OUTPUT CONTROL is used to preset
the voltage.

The 14-pin connector is used to directly connect a
wire feeder control cable. In the CV-WIRE mode,
when the control cable is connected to the 14-pin con­nector, the auto-sensing circuit automatically makes
the Output Control inactive and the wire feeder volt­age control active.

WARNING

NOTE: When a wire feeder with a built in welding
voltage control is connected to the 14-pin connec­tor, do not connect anything to the 6-pin connec­tor.

--------------------------------------------------------------------------------

The AIR VANTAGE® 500(AU) KUBOTA can be per­manently installed as a standby power unit for 240 volt
(60Hz). Connections must be made by a licensed
electrician who can determine how the 240 VAC
power can be adapted to the particular installation and
comply with all applicable electrical codes. The follow­ing information can be used as a guide by the electri­cian for most applications.

1 Install an isolation switch between the power com-

pany meter and the premises disconnect. (The AIR
VANTAGE® 500(AU) KUBOTA and the power
company supplies must not be connected togeth­er).

Switch rating must be the same or greater than the
customerʼs premises disconnect and service over cur­rent protection.

2. Take necessary steps to assure load is limited to

the capacity of the AIR VANTAGE® 500(AU)
KUBOTA. Loading above the rated output will
reduce output voltage below the allowable -10% of
rated voltage which may damage appliances or
other motor-driven equipment and may result in
overheating of the AIR VANTAGE® 500(AU) KUB­OTA engine.

AIR VANTAGE®500(AU) KUBOTA

A-7

INSTALLATION

CONNECTION OF LINCOLN ELEC­TRIC WIRE FEEDERS

A-7

4. Control Cable Model:

Connection of LN-7, LN-8 OR LN-742 to the AIR
VANTAGE

1. Shut the welder off.

2. Connect the LN-7, LN-8 OR LN-742 per instruc­tions on the appropriate connection diagram in
Section F.

3. Set the "WIRE FEEDER VOLTMETER" switch to
either "+" or "-" as required by the electrode being
used.

4. Set the "MODE" switch to the "CV WIRE " posi­tion.

5. Set the "ARC CONTROL" knob to "0" initially and
adjust to suit.

6. Set the "WELD TERMINALS" switch to the
"REMOTELY CONTROLLED" position.

7. Set the "IDLE" switch to the "HIGH" position.

Connection of LN-15 to the AIR VANTAGE
500(AU) KUBOTA

®

500(AU) KUBOTA

• Connect Control Cable between Engine Welder
and Feeder.

• Set the "WELD TERMINALS" switch to
"REMOTELY CONTROLLED"

• Set the MODE switch to the "CV-WIRE " position.

• Set the "WIRE FEEDER VOLTMETER" switch to
either "+" or "-" as required by the electrode polar­ity being used.

• Set the "ARC CONTROL" knob to "0" initially and
adjust to suit.

• Set the "IDLE" switch to the "AUTO" position.

• When the gun trigger is closed, the current sens-

®

ing circuit will cause the AIR VANTAGE
KUBOTA engine to go to the high idle speed, the
wire will begin to feed and the welding process
started. When welding is stopped, the engine will
revert to low idle speed after approximately 12

®

seconds unless welding is resumed.

500(AU)

1. Shut the welder off.

2. For electrode Positive, connect the electrode

cable to the "+" terminal of the welder and work
cable to the "-" terminal of the welder. For elec­trode Negative, connect the electrode cable to the
"-" terminal of the welder and work cable to the "+"
terminal of the welder.

3. Across The-Arc Model:

• Attach the single lead from the front of the LN-15
to work using the spring clip at the end of the
lead. This is a control lead to supply current to
the wire feeder motor; it does not carry welding
current.

• Set the "WELD TERMINALS" switch to "WELD
TERMINALS ON".

• When the gun trigger is closed, the current sens­ing circuit will cause the AIR VANTAGE
500(AU) KUBOTA engine to go to the high idle
speed, the wire will begin to feed and the welding
process started. When welding is stopped, the
engine will revert to low idle speed after approxi­mately 12 seconds unless welding is resumed.

®

AIR VANTAGE®500(AU) KUBOTA

A-8

INSTALLATION

A-8

CONNECTION OF THE LN-25 TO THE AIR

®

VANTAGE

500(AU) KUBOTA.

WARNING

Shut off welder before making any electrical con­nections.

--------------------------------------------------------------------------------

The LN-25 with or without an internal contactor may
be used with the AIR VANTAGE®500(AU) KUBOTA .
See the appropriate connection diagram in Section F.

1. Shut the welder off.

2. For electrode Positive, connect the electrode
cable from the LN-25 to the "+" terminal of the
welder and work cable to the "-" terminal of the
welder. For electrode Negative, connect the elec­trode cable from the LN-25 to the "-" terminal of
the welder and work cable to the "+" terminal of
the welder.

3. Attach the single lead from the front of the LN-25
to work using the spring clip at the end of the lead.
This is a control lead to supply current to the wire
feeder motor; it does not carry welding current.

CONNECTION OF AN NA-3 AUTOMATIC
WELDING SYSTEM TO THE AIR VAN­TAGE®500(AU) KUBOTA

For connection diagrams and instructions for connect­ing an NA-3 Welding System to the AIR VANTAGE
500(AU) KUBOTA, refer to the NA-3 Welding System
instruction manual. The connection diagram for the
LN-8 can be used for connecting the NA-3.

• Set the Wire Feeder Voltage Switch to 115V.

CONNECTION OF MAGNUM SC SPOOL
GUN TO THE AIR VANTAGE®500(AU)
KUBOTA (SEE SECTION F)

®

4. Set the MODE switch to the "CV-WIRE " position.

5. Set the "WELD TERMINALS" switch to "WELD
TERMINALS ON"

6. Set the "ARC CONTROL" knob to "0" initially and
adjust to suit.

7. Set the "IDLE" switch to the "AUTO" position.

®

When not welding, the AIR VANTAGE
KUBOTA engine will be at the low idle speed. If
you are using an LN-25 with an internal contactor,
the electrode is not energized until the gun trigger
is closed.

8. When the gun trigger is closed, the current sens­ing circuit will cause the AIR VANTAGE
KUBOTA engine to go to the high idle speed, the
wire will begin to feed and the welding process
started. When welding is stopped, the engine will
revert to low idle speed after approximately 12
seconds unless welding is resumed.

500(AU)

®

500(AU)

CAUTION

If you are using an LN-25 without an internal con­tactor, the electrode will be energized when the
AIR VANTAGE

------------------------------------------------------------------------

®

500(AU) KUBOTA is started.

AIR VANTAGE®500(AU) KUBOTA

A-9

INSTALLATION

CAUTION

Certain Electrical devices cannot be powered to this Product. See Table A.2

TABLE A.2

ELECTRICAL DEVICE USE WITH THIS PRODUCT

A-9

Type

Resistive

Capacitive

Inductive

Common Electrical Devices

Heaters, toasters, incandescent
light bulbs, electric range, hot
pan, skillet, coffee maker.

TV sets, radios, microwaves,
appliances with electrical control.

Single-phase induction motors,
drills, well pumps, grinders, small
refrigerators, weed and hedge
trimmers.

Possible Concerns

NONE

Voltage spikes or high voltage
regulation can cause the capac­itative elements to fail. Surge
protection, transient protection, and
additional loading is recom­mended for 100% fail-safe opera­tion. DO NOT RUN
THESE DEVICES WITHOUT
ADDITIONAL RESISTIVE TYPE
LOADS.

These devices require large
current inrush for starting. (See
Some synchronous motors may
be frequency sensitive to attain
maximum output torque, but
they SHOULD BE SAFE from
any frequency induced failures.

Capacitive / Inductive

The Lincoln Electric Company is not responsible for any damage to electrical components
improperly connected to this product.

Computers, high resolution TV sets,
complicated electrical equipment.

AIR VANTAGE®500(AU) KUBOTA

An inductive type line condition­er along with transient and
surge protection is required,
and liabilities still exist.
DO NOT USE THESE DEVICES
WITH THIS PRODUCT.