Lincoln Electric Portable Generator 300 D User Manual
RETURN TO MAIN MENU  
IM631-B  
®
May, 2006  
CLASSIC 300 D  
For Machines with Code Numbers 10545, 10546, 10657, 10658, 10911 and 10927  
Safety Depends on You  
Lincoln arc welding 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.  
R
OPERATOR’S MANUAL  
Copyright © 2006 Lincoln Global Inc.  
• World's Leader in Welding and Cutting Products •  
• Sales and Service through Subsidiaries and Distributors Worldwide •  
Cleveland, Ohio 44117-1199 U.S.A. TEL: 216.481.8100 FAX: 216.486.1751 WEB SITE: www.lincolnelectric.com  
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SAFETY  
ARC RAYS can burn.  
ELECTRIC SHOCK can  
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.  
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.  
4.b. Use suitable clothing made from durable flame-resistant  
material to protect your skin and that of your helpers from  
the arc rays.  
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.  
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.  
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:  
FUMES AND GASES  
can be dangerous.  
5.a. Welding may produce fumes and gases  
hazardous to health. Avoid breathing these  
• Semiautomatic DC Constant Voltage (Wire) Welder.  
• DC Manual (Stick) Welder.  
fumes and gases.When welding, keep  
your head out of the fume. Use enough  
• AC Welder with Reduced Voltage Control.  
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 below Threshold Limit Values (TLV)  
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.  
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.  
5.b. 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.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.  
5.c. 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.  
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.  
5.d. 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.  
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.  
5.e. Also see item 1.b.  
Mar ‘95  
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SAFETY  
WELDING SPARKS can  
cause fire or explosion.  
CYLINDER may explode  
if damaged.  
6.a. Remove fire hazards from the welding area.  
If this is not possible, cover them to prevent  
7.a. Use only compressed gas cylinders  
containing the correct shielding gas for the  
the welding sparks from starting a fire.  
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.  
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. Always keep cylinders in an upright position securely  
chained to an undercarriage or fixed support.  
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.  
7.c. Cylinders should be located:  
•Away from areas where they may be struck or subjected to  
physical damage.  
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.  
•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.  
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).  
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  
1235 Jefferson Davis Highway, Arlington, VA 22202.  
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.  
FOR ELECTRICALLY  
powered equipment.  
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 cir-  
cuits. This can create fire hazards or overheat lifting chains  
or cables until they fail.  
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.h. Also see item 1.c.  
8.c. Ground the equipment in accordance with the U.S. National  
Electrical Code and the manufacturer’s recommendations.  
Mar ‘95  
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SAFETY  
5. Toujours porter des lunettes de sécurité dans la zone de  
soudage. Utiliser des lunettes avec écrans lateraux dans les  
zones où l’on pique le laitier.  
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 suiv-  
antes:  
6. Eloigner les matériaux inflammables ou les recouvrir afin de  
prévenir tout risque d’incendie 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 d’incendie.  
Sûreté Pour Soudage A L’Arc  
1. Protegez-vous contre la secousse électrique:  
a. Les circuits à l’électrode 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 s’isoler 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.  
8. S’assurer que la masse est connectée le plus prés possible  
de la zone de travail qu’il est pratique de le faire. Si on place  
la masse sur la charpente de la construction ou d’autres  
endroits éloignés de la zone de travail, on augmente le risque  
de voir passer le courant de soudage par les chaines de lev-  
age, câbles de grue, ou autres circuits. Cela peut provoquer  
des risques d’incendie ou d’echauffement des chaines et des  
câbles jusqu’à ce qu’ils 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.  
d.Ne jamais plonger le porte-électrode dans l’eau pour le  
refroidir.  
10. Ne pas souder en présence de vapeurs de chlore provenant  
d’opérations de dégraissage, nettoyage ou pistolage. La  
chaleur ou les rayons de l’arc peuvent réagir avec les vapeurs  
du solvant pour produire du phosgéne (gas fortement toxique)  
ou autres produits irritants.  
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 s’applicuent aussi au pistolet de  
soudage.  
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 n’importe quelle partie  
du corps.  
PRÉCAUTIONS DE SÛRETÉ POUR  
LES MACHINES À SOUDER À  
TRANSFORMATEUR ET À  
REDRESSEUR  
3. Un coup d’arc peut être plus sévère qu’un coup de soliel,  
donc:  
a. Utiliser un bon masque avec un verre filtrant approprié  
ainsi qu’un verre blanc afin de se protéger les yeux du ray-  
onnement de l’arc et des projections quand on soude ou  
quand on regarde l’arc.  
b. Porter des vêtements convenables afin de protéger la  
peau de soudeur et des aides contre le rayonnement de  
l‘arc.  
1. Relier à la terre le chassis du poste conformement au code de  
l’électricité et aux recommendations du fabricant. Le dispositif  
de montage ou la piece à souder doit être branché à une  
bonne mise à la terre.  
c. Protéger l’autre personnel travaillant à proximité au  
soudage à l’aide d’écrans appropriés et non-inflammables.  
2. Autant que possible, I’installation et l’entretien du poste seront  
effectués par un électricien qualifié.  
4. Des gouttes de laitier en fusion sont émises de l’arc de  
soudage. Se protéger avec des vêtements de protection libres  
de l’huile, tels que les gants en cuir, chemise épaisse, pan-  
talons sans revers, et chaussures montantes.  
3. Avant de faires des travaux à l’interieur de poste, la debranch-  
er à l’interrupteur à la boite de fusibles.  
4. Garder tous les couvercles et dispositifs de sûreté à leur  
place.  
Mar. ‘93  
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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!  
Thank You  
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 WEB SITE at www.lincolnelectric.com. Choose “Quick Links” and then  
“Product Registration”. 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:  
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.  
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TABLE OF CONTENTS  
vi  
vi  
Page  
Installation .......................................................................................................Section A  
Technical Specifications ........................................................................................A-1  
General Description...............................................................................................A-2  
Design Features ....................................................................................................A-2  
Pre-Operation Installation......................................................................................A-3  
Safety Precautions..........................................................................................A-3  
Exhaust Spark Arrester...................................................................................A-3  
Location/Ventilation.........................................................................................A-3  
Machine Grounding.........................................................................................A-3  
Lift Bail ............................................................................................................A-3  
Trailers ............................................................................................................A-4  
Polarity Control and Cable Sizes ....................................................................A-4  
Pre-Operation Service ...........................................................................................A-4  
Oil....................................................................................................................A-4  
Fuel .................................................................................................................A-4  
Cooling System...............................................................................................A-4  
Engine Break-in, Battery Charging..................................................................A-5  
________________________________________________________________________  
Operation .........................................................................................................Section B  
Engine Operation...................................................................................................B-1  
Starting The Perkins 104-22 Engine ...............................................................B-1  
Stopping the engine ........................................................................................B-1  
Welder Operation...................................................................................................B-2  
Duty Cycle.......................................................................................................B-2  
Control of Welding Current..............................................................................B-2  
Idler Operation ................................................................................................B-2  
Auxiliary Power ...............................................................................................B-3  
________________________________________________________________________  
Accessories.....................................................................................................Section C  
Optional Features (Field Installed) ........................................................................C-1  
________________________________________________________________________  
Maintenance ....................................................................................................Section D  
Safety Precautions ................................................................................................D-1  
General Instructions..............................................................................................D-1  
Cooling System.....................................................................................................D-1  
Bearings................................................................................................................D-1  
Commutator and Brushes .....................................................................................D-1  
Idler Maintenance..................................................................................................D-2  
Nameplates...........................................................................................................D-2  
Purging Air from Fuel System................................................................................D-2  
Engine Service Chart ....................................................................................D-3, D-4  
GFCI Receptacle Testing and Reseting Procedure (Optional)..............................D-5  
________________________________________________________________________  
Troubleshooting..............................................................................................Section E  
Safety Precautions.................................................................................................E-1  
Welder Troubleshooting ........................................................................................E-2  
Electronic Idler Troubleshooting Guide...........................................................E-3,E-4  
Engine Troubleshooting Guide .....................................................................E-5, E-6  
________________________________________________________________________  
Diagrams ..........................................................................................................Section F  
Wiring Diagram (Classic 300 D) ......................................................................F-1,F-2  
Connection Diagram ..............................................................................................F-3  
Dimension Print......................................................................................................F-4  
________________________________________________________________________  
Parts List ......................................................................................................P337 Series  
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A-1  
A-1  
INSTALLATION  
TECHNICAL SPECIFICATIONS - CLASSIC 300D  
INPUT - DIESEL ENGINE  
Make/Model  
Description  
Speed (RPM)  
Displacement  
Starting  
System  
Capacities  
Perkins  
104-22 Diesel  
Engine  
4 cylinder  
4 Cycle  
32.7 HP @  
1800 RPM  
High Idle 1800  
Low Idle 1350  
Full Load 1725  
135.6 cu. in  
(2.2 L)  
12VDC batteries  
(2) & Starter  
Fuel: 15 gal.  
57 L  
(Water Cooled)  
Bore x Stroke  
Oil: 8.7 Qts.  
8.2 L  
3.875” x 5.00”  
(98.4 mm x 127.0mm)  
Coolant: 7.9 gal.  
7.5 L  
RATED OUTPUT - WELDER  
(1)  
WELDING OUTPUT*  
Current/Voltage/Duty Cycle  
OPEN CIRCUIT  
VOLTAGE  
OUTPUT RANGE  
AUXILIARY POWER  
AMPS  
40-350A  
115/230 VAC  
3000 Watts, 60 Hz.  
26 Amps @ 115V  
13 Amps @ 230V  
250A / 30V / 100%  
300A / 32V / 60%  
98 Max.  
@ 1800 RPM  
220A-MAX.  
160-240A  
120-240A  
120-190A  
80-130A  
Min.-90A  
PHYSICAL DIMENSIONS(2)  
HEIGHT  
WIDTH  
DEPTH  
WEIGHT  
1354 lbs.  
K1643-1  
45.50 in.  
1156 mm  
24.00 in.  
610 mm  
65.00 in.  
1651 mm  
(616 kg)  
1354 lbs.  
K1643-2  
(616 kg)  
* Based on a 10 min. period.  
(1) 115V will operate either 60 Hz. or 50/60 Hz. power tools, lights etc.  
(2) Height to top of exhaust elbow.  
PERKINS 104-22 DIESEL ENGINE TYPICAL FUEL CONSUMPTION DATA  
Low Idle (1375 RPM)-No Load @ 45 Volts  
High Idle (1800 RPM)-No Load @ 96.6 Volts  
50 Amps @ 22 Volts  
0.28 gal/hr ( 1.06 ltrs/hr)  
0.45 gal/hr ( 1.70 ltrs/hr)  
0.51 gal/hr ( 1.93 ltrs/hr)  
0.58 gal/hr ( 2.19 ltrs/hr)  
0.70 gal/hr ( 2.65 ltrs/hr)  
0.85 gal/hr ( 3.21 ltrs/hr)  
1.05 gal/hr ( 3.97 ltrs/hr)  
1.31 gal/hr ( 4.95 ltrs/hr)  
1.68 gal/hr ( 6.35 ltrs/hr)  
100 Amps @ 24 Volts  
150 Amps @ 26 Volts  
200 Amps @ 28 Volts  
250 Amps @ 30 Volts  
300 Amps @ 32 Volts  
350 Amps @ 34 Volts  
CLASSIC 300D  
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A-2  
A-2  
INSTALLATION  
GENERAL DESCRIPTION  
DESIGN FEATURES  
®
The Classic 300 D is a heavy duty, engine driven,  
DC arc welding power source, capable of providing  
constant current output for stick welding or DC TIG  
welding. This welder is wound with all copper coils,  
rated at 300 amps/32 Volts, and provides other  
Classic features such as improved door latches and  
stainless hinges. With the addition of the optional  
Control Panel  
Both the engine and the welder controls are located  
on one recessed panel at the exciter end of the  
machine. The welder controls consist of a five step  
“Current Range Selector” switch and a “Fine Current  
Adjustment” rheostat. The welder is equipped with a  
“Start” button, an “Ignition” switch, an “Idler” control  
switch, and a “Glow Plug” button for easier cold  
weather starting.  
™
K623-1 Wire Feed Module , the Classic 300 D will  
provide constant voltage output for running the LN-7,  
LN-23P, or LN-25 wire feeders. (The Wire Feed  
Module is factory installed on the K1643-2). The  
optional K924-4 or K924-5 Remote Control Kit (Both  
field installed) See Section C for description.  
The control panel also contains an engine tempera-  
ture gauge, a battery charging ammeter, an oil pres-  
sure gauge, two three prong grounding type recepta-  
cles and four circuit breakers for auxiliary power.  
The Classic 300 D has Diesel Engine Protection. In  
the event of sudden low oil pressure or high coolant  
temperature, the engine immediately shuts down.  
The Classic 300 D has a current range of 40-350 DC  
amps with output ratings as follows:  
All Copper Windings - For long life and dependable  
operation.  
Engine Idler - The Classic 300 D is equipped with an  
electronic automatic engine idler. It automatically  
increases and decreases engine speed when start-  
ing and stopping welding or using auxiliary  
power. A built-in time delay permits changing elec-  
trodes before the engine slows to its low idle speed.  
The “Idler” control switch on the panel locks the idler  
in high idle position when desired.  
RATED OUTPUT  
DUTY CYCLE  
250A @ 30V  
300A @ 32V  
100%  
60%  
Auxiliary Power - 3.0 kVA of nominal 115/230V,  
60Hz, AC. Output voltage is maintained within 10%  
These units are also capable of providing 3 kVA of  
115/230 volts of 60 cycle AC auxiliary power.  
at all loads up to rated capacity.  
Features for Power Plug Kit.)  
(See Optional  
The Classic 300 D uses the Perkins 104-22 industrial  
water-cooled diesel engine.  
Welder Enclosure - The complete welder is rubber  
mounted on a rugged steel “C” channel base.  
The output terminals are placed at the side of the  
machines so that they are protected by the door. The  
output terminals are labeled (+) and (-).  
Cranking System - A 12 volt electric starter is stan-  
dard.  
Air Cleaner - Heavy duty two stage dry type.  
Muffler - A muffler and stainless steel exhaust outlet  
elbow are standard.  
Engine Hour Meter - A meter to record hours of oper-  
ation.  
Engine Protection - The system shuts the engine  
down in the event of sudden low oil pressure or high  
coolant temperature. A warning light on the control  
panel will indicate such a fault. To reset the engine for  
restarting, turn the ignition switch off then on.  
CLASSIC 300D  
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A-3  
A-3  
INSTALLATION  
PRE-OPERATION INSTALLATION  
CAUTION  
DO NOT MOUNT OVER COMBUSTIBLE SUR-  
FACES.  
WARNING  
Do not attempt to use this equipment until you  
have thoroughly read the engine manufacturer’s  
manual supplied with your welder. It includes  
important safety precautions, detailed engine  
starting, operating and maintenance instructions,  
and parts lists.  
Where there is a combustible surface directly under  
stationary or fixed electrical equipment, the surface  
shall be covered with a steel plate at least  
.06”(1.6mm) thick, which shall extend not more than  
5.90”(150mm) beyond the equipment on all side.s.  
----------------------------------------------------------------------  
Machine Grounding  
------------------------------------------------------------------------  
ELECTRIC SHOCK can kill.  
• Do not touch electrically live parts or  
electrode with skin or wet clothing.  
• Insulate yourself from work and  
ground  
According to the United States National Electrical  
Code, the frame of this portable generator is not  
required to be grounded and is permitted to serve as  
the grounding means for cord connected equipment  
plugged into its receptacle.  
• Always wear dry insulating gloves.  
------------------------------------------------------------------------  
ENGINE EXHAUST can kill.  
• Use in open, well ventilated areas or  
vent exhaust outside.  
Some state, local, or other codes or unusual operating  
circumstances may require the machine frame to be  
grounded. It is recommended that you determine the  
extent to which such requirements may apply to your  
particular situation and follow them explicitly. A  
------------------------------------------------------------------------  
MOVING PARTS can injure.  
• Do not operate with doors open or  
guards off.  
machine grounding stud marked with the symbol  
is  
• Stop engine before servicing.  
• Keep away from moving parts.  
provided on the welding generator frame foot. In gen-  
eral, 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 water pipe going into  
the ground for at least ten feet and having no insulat-  
ed joints, or to the metal framework of a building  
which has been effectively grounded. The U.S.  
National Code lists a number of alternate means of  
grounding electrical equipment.  
------------------------------------------------------------------------  
See additional warning information at the  
front of this operator’s manual.  
-----------------------------------------------------------  
Exhaust Spark Arrester  
Some federal, state or local laws may require that  
engines be equipped with exhaust spark arresters  
when they are operated in certain locations where  
unarrested sparks may present a fire hazard. The  
standard muffler included with this welder does not  
qualify as a spark arrester. When required by local  
regulations, a suitable spark arrester must be installed  
and properly maintained.  
Lift Bail  
A lift bail is provided for lifting with a hoist.  
WARNING  
• Lift only with equipment of  
adequate lifting capacity.  
CAUTION  
Use of an incorrect arrester may lead to engine damage  
or performance loss. Contact the engine manufacturer  
for specific recommendations.  
------------------------------------------------------------------------  
Location / Ventilation  
• Be sure machine is stable  
when lifting.  
• Do not lift this machine using  
lift bale if it is equipped with a  
heavy accessory such as trail-  
er or gas cylinder.  
FALLING  
• Do not lift machine if lift bale is  
damaged.  
Always operate the welder with the doors closed.  
Leaving the doors open changes the designed air flow  
and may cause overheating.  
EQUIPMENT can • Do not operate machine while  
cause injury. suspended from lift bale.  
------------------------------------------------------------------------  
The welder should be located to provide an unrestrict-  
ed flow of clean, cool air. Also, locate the welder so  
that engine exhaust fumes are properly vented to an  
outside area.  
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A-4  
A-4  
INSTALLATION  
RECOMMENDED COPPER CABLE SIZES  
TRAILER (See Optional Features)  
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 dam-  
age the welding equipment. Some of the factors to be  
considered are as follows:  
Cables Sizes for Combined Length  
of Electrode Plus Work Cable  
Amps  
250  
Duty Cycle  
100%  
Up to 200ft.(61m) 200 to 250ft.  
(61 to 76m)  
1
1/0  
300  
60%  
1/0  
2/0  
1. Design capacity of trailer vs. weight of Lincoln  
equipment and likely additional attachments.  
PRE-OPERATION SERVICE  
CAUTION  
2. Proper support of, and attachment to, the base of  
the welding equipment so there will be no undue  
stress to the framework.  
READ the engine operating and maintenance instruc-  
tions supplied with this machine.  
-----------------------------------------------------------------------  
3. Proper placement of the equipment on the trailer to  
ensure stability side to side and front to back when  
being moved and when standing by itself while being  
operated or serviced.  
WARNING  
• Stop engine while fueling.  
• Do not smoke when fueling.  
• Keep sparks and flame away  
from tank.  
4. Typical conditions of use, i.e., travel speed, rough-  
ness of surface on which the trailer will be operated;  
environmental conditions, likely maintenance.  
• Do not leave unattended while  
fueling.  
• Wipe up spilled fuel and allow  
fumes to clear before starting  
engine.  
DIESEL FUEL  
(1)  
5. Conformance with federal, state and local laws.  
can cause fire.  
(1)  
Consult your federal, state and local laws regarding specific  
requirements for use on public highways.  
• Do not overfill tank, fuel  
expansion may cause over-  
flow.  
VEHICLE MOUNTING  
Improperly mounted concentrated loads may cause  
unstable vehicle handling and tires or other compo-  
nents to fail.  
• Only transport this equipment on serviceable vehi-  
cles which are rated and designed for such loads.  
• Distribute, balance and secure loads so vehicle is  
stable under conditions of use.  
DIESEL FUEL ONLY  
------------------------------------------------------------------------  
Oil  
This unit is supplied from the factory with the engine  
crankcase filled with a high quality SAE 10W/30 oil.  
This oil should be acceptable for most typical ambient  
temperatures. Consult the engine operation manual  
for specific engine manufacturer’s recommendations.  
Upon receipt of the welder, check the engine dipstick  
to be sure the oil is at the “full” mark. DO NOT overfill.  
• Do not exceed maximum rated loads for compo-  
nents such as suspension, axles and tires.  
• Mount equipment base to metal bed or frame of  
vehicle.  
• Follow vehicle manufacturer’s instruction.  
----------------------------------------------------------------------------  
Fuel  
POLARITY CONTROL AND CABLE SIZES  
Fill the fuel tank with the grade of fuel recommended  
in the Engine Operator’s manual. Make sure the fuel  
valves on the sediment bowl and the water separator  
are in the open positions.  
With the engine off, route the electrode and work  
cables through the strain relief bracket on the base  
and connect to the studs located below the fuel tank  
mounting rail. (See size recommendations below.)  
For positive polarity, connect the electrode cable to  
the terminal marked “+”. For Negative polarity, con-  
nect the electrode cable to the “-” stud. These con-  
nections should be checked periodically and tightened  
if necessary.  
Cooling System  
The radiator has been filled at the factory with a 50-50  
mixture of ethylene glycol antifreeze and water.  
Check the radiator level and add a 50-50 solution as  
needed (see engine manual or antifreeze container for  
alternate antifreeze recommendations).  
When welding at a considerable distance from the  
welder, be sure you use ample sized welding cables.  
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A-5  
A-5  
INSTALLATION  
Battery Charging  
ENGINE BREAK-IN  
WARNING  
Lincoln Electric selects high quality, heavy-duty indus-  
trial engines for the portable welding machines we  
offer. While it is normal to see a small amount of  
crankcase oil consumption during initial operation,  
excessive oil use, wetstacking (oil or tar like sub-  
stance at the exhaust port), or excessive smoke is not  
normal.  
GASES FROM BATTERY can explode.  
• Keep sparks, flame and cigarettes  
away.  
BATTERY ACID can burn eyes and  
skin.  
• Wear gloves and eye protection and  
be careful when boosting, charging or  
working near battery.  
Larger machines with a capacity of 350 amperes and  
higher, which are operated at low or no-load condi-  
tions for extended periods of time are especially sus-  
ceptible to the conditions described above. To  
accomplish successful engine break-in, most diesel-  
powered equipment needs only to be run at a reason-  
ably heavy load within the rating of the welder for  
some period of time during the engine’s early life.  
However, if the welder is subjected to extensive light  
loading, occasional moderate to heavy loading of the  
engine may sometimes be necessary. Caution must  
be observed in correctly loading a diesel/generator  
unit.  
To prevent EXPLOSION when:  
a) Installing a new battery - disconnect the  
negative cable from the old battery first and  
connect the negative cable to the new battery  
last.  
b) Connecting a battery charger - remove the  
battery from the welder by disconnecting the  
negative cable first, then the positive cable and  
battery clamp. When reinstalling, connect the  
negative cable last.  
c) Using a booster - connect the positive lead to  
the battery first, then connect the negative lead to  
the ground lead on the base.  
1. Connect the welder output studs to a suit-  
able resistive load bank. Note that any  
attempt to short the output studs by con-  
necting the welding leads together, direct  
shorting of the output studs, or connecting  
the output leads to a length of steel will  
result in catastrophic damage to the gener-  
ator and voids the warranty.  
To prevent ELECTRICAL DAMAGE when:  
a) Installing a new battery.  
b) Using a booster.  
Use correct polarity - Negative Ground.  
To prevent BATTERY DISCHARGE, if you have an  
ignition switch, turn it off when engine is not  
running.  
2. Set the welder controls for an output cur-  
rent and voltage within the welder rating  
and duty cycle. Note that any attempt to  
exceed the welder rating or duty cycle for  
any period of time will result in catastrophic  
damage to the generator and voids the  
warranty.  
• To prevent BATTERY BUCKLING, tighten nuts on  
battery clamp until snug.  
------------------------------------------------------------------------  
The Classic 300 D is equipped with a wet charged  
battery. The charging current is automatically regulat-  
ed when the battery is low (after starting the engine)  
to a trickle current when the battery is fully charged.  
3. Periodically shut off the engine and check  
the crankcase oil level.  
When replacing, jumping or otherwise connecting the  
battery to the battery cables, the proper polarity must  
be observed. This system is NEGATIVE GROUND.  
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B-1  
B-1  
OPERATION  
7. Allow the engine to run at high idle speed for sev-  
eral minutes to warm the engine. Stop the engine  
and recheck the oil level, after allowing sufficient  
time for the oil to drain into the pan. If the level is  
down, fill it to the full mark again. The engine con-  
trols were properly set at the factory and should  
require no adjusting when received.  
ENGINE OPERATION  
WARNING  
Do not attempt to use this equipment until you  
have thoroughly read the engine manufacturer’s  
manual supplied with your welder. It includes  
important safety precautions, detailed engine  
starting, operating and maintenance instructions,  
and parts lists.  
COLD WEATHER STARTING:  
------------------------------------------------------------------------  
ELECTRIC SHOCK can kill.  
With a fully charged battery and the proper weight oil,  
the engine should start satisfactorily even down to  
about -15°F (-26°C), it maybe desirable to install cold-  
starting aides.  
• 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.  
Note: Extreme cold weather staring may require  
longer glow plug operation.  
• Use in open, well ventilated areas or  
vent exhaust outside.  
WARNING  
------------------------------------------------------------------------  
MOVING PARTS can injure.  
Under NO conditions should ether or other  
starting fluids be used!  
------------------------------------------------------------------------  
• Do not operate with doors open or  
guards off.  
• Stop engine before servicing.  
• Keep away from moving parts.  
------------------------------------------------------------------------  
Stopping the Engine  
1. Turn the “IGNITION” switch to “OFF”  
See additional warning information at the  
front of this operator’s manual.  
At the end of each day’s welding, check the crankcase  
oil level, drain accumulated dirt and water from the  
sediment bowl under the fuel tank and refill the fuel  
tank to minimize moisture condensation in the tank.  
Also, running out of fuel tends to draw dirt into the fuel  
system.  
-----------------------------------------------------------  
Operate the welder with the doors closed. Leaving  
the doors open changes the designed air flow and can  
cause overheating.  
When hauling the welder between job sites, close the  
fuel feed valve beneath the fuel tank.  
Starting the Classic 300 D Perkins 104-22  
Diesel Engine  
If the fuel supply is cut off or runs out while the fuel  
pump is operating, air may be entrapped in the fuel  
distribution system. If this happens, bleeding of the  
fuel system may be necessary. Use qualified person-  
nel to do this per the instructions in the MAINTE-  
NANCE section of this manual.  
1. Turn the “IDLER” switch to “HIGH”.  
2. Turn the “IGNITION” switch to “ON”.  
3. Press the Glow Plug button for 20 to 30 seconds.  
(maximum 60 seconds).  
4. Press the Start button. When the engine starts  
running, release both buttons. If the engine fails to  
start in 20 seconds, wait 30 seconds and repeat  
the above procedure.  
5. Observe the oil pressure. If no pressure shows  
within 30 seconds, stop the engine and consult  
the engine operating manual. To stop the engine,  
turn the “IGNITION” switch to “OFF”.  
6. If the engine protection warning light comes on  
during cranking or after start up, the “IGNITION”  
switch must be turned “OFF” to reset the engine  
protection system.  
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B-2  
B-2  
OPERATION  
Range Selector” to the 190-120 position and then  
adjust the “Fine Current Adjustment” for 175 amps.  
WELDER OPERATION  
WARNING  
When a forceful “digging” arc is required, usually for  
vertical and overhead welding, use a higher “Current  
Range Selector” setting and lower open circuit volt-  
age. For example: to obtain 175 amps and a forceful  
arc, set the “Current Range Selector” to the 240-160  
position and the “Fine Current Adjustment” setting to  
get 175 amps.  
ELECTRIC SHOCK can kill.  
• Do not touch electrically live parts or  
electrode with skin or wet clothing.  
• Insulate yourself from work and ground.  
FUMES & GASES can be dangerous.  
• Keep your head out of the fumes.  
• Use ventilation or exhaust to remove  
fumes from breathing zone.  
Some arc instability may be experienced with EXX10  
electrodes when trying to operate with long arc tech-  
niques at settings at the lower end of the open circuit  
voltage range.  
WELDING SPARKS can cause fire or  
explosion.  
• Keep flammable material away.  
CAUTION  
DO NOT attempt to set the “Current Range Selector”  
between the five points designated on the nameplate.  
------------------------------------------------------------------------  
ARC RAYS can burn.  
• Wear eye, ear, and body protection.  
These switches have a spring loaded cam which  
almost eliminates the possibility of setting this switch  
between the designated points.  
Duty Cycle  
Idler Operation  
The NEMA output rating of the Classic 300 D is 300  
amperes at 32 arc volts on a 60% duty cycle (consult  
Specifications in this manual for alternate ratings).  
Duty cycle is based on a ten minute period; thus, the  
welder can be loaded at rated output for six minutes  
out of every ten minute period.  
Start the engine with the “Idler” switch in the “High”  
position. Allow it to run at high idle speed for several  
minutes to warm the engine. See Specifications for  
operating speeds.  
The idler is controlled by the “Idler” toggle switch on  
the welder control panel. The switch has two posi-  
tions as follows:  
Control of Welding Current  
CAUTION  
1. In the “High”  
position, the idler solenoid acti-  
DO NOT TURN THE “CURRENT RANGE SELEC-  
TOR” WHILE WELDING because the current may  
arc between the contacts and damage the switch.  
------------------------------------------------------------------------  
vates, and the engine goes to high idle speed. The  
speed is controlled by the governor.  
2. In the “Auto”  
/
position, the idler oper-  
ates as follows:  
The “Current Range Selector” provides five overlap-  
ping current ranges. The “Fine Current Adjustment”  
adjusts the current from minimum to maximum within  
each range. Open circuit voltage is also controlled by  
the “Fine Current Adjustment” permitting control of the  
arc characteristics.  
a. When welding or drawing power for lights or tools  
(approximately 100-150 watts minimum) from the  
receptacles, the idler solenoid activates and the  
engine operates at high idle speed.  
b. When welding ceases or the power load is turned  
off, a preset time delay of about 15 seconds  
starts. This time delay cannot be adjusted.  
A high open circuit voltage setting provides the soft  
“buttering” arc with best resistance to pop-outs pre-  
ferred for most welding. To get this characteristic, set  
the “Current Range Selector” to the lowest setting that  
still provides the current you need and set the “Fine  
Current Adjustment” near maximum. For example: to  
obtain 175 amps and a soft arc, set the “Current  
c. If the welding or power load is not re-started  
before the end of the time delay, the idler sole-  
noid deactivates and reduces the engine to low  
idle speed.  
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B-3  
B-3  
OPERATION  
Auxiliary Power  
The AC auxiliary power, supplied as a standard, has a  
rating of 3.0 kVA of 115/230 VAC (60 hertz).  
With the 3.0 kVA, 115/230 VAC auxiliary power, one  
115V duplex and one 230V duplex, grounding type  
receptacle are provided. The circuit is protected with  
circuit breakers.  
The rating of 3.0 kVA permits a maximum continuous  
current of 13 amps to be drawn from the 230 volt  
duplex receptacle. Or a total of 26 amps can be drawn  
from the 115 volt duplex receptacle. The 115 volt  
duplex receptacle has a configuration which permits  
20 amps to be drawn from either half. The total com-  
bined load of all receptacles is not to exceed 3.0 kVA.  
An optional power plug kit is available. When this kit is  
specified, the customer is supplied with a plug for  
each receptacle.  
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C-1  
C-1  
ACCESSORIES  
Remote Control Kit (K924-4) - Contains switch,  
receptacle, remote control rheostat, and 100 ft  
(30.5m) cable for adjusting the OCV at the welding  
site.(For Codes below 10911.)  
OPTIONAL FEATURES (Field Installed)  
GENERAL OPTIONS  
Remote Control Kit (K924-5) - Contains remote  
control rheostat and 100 ft. (30.5 m) cable for adjust-  
ing the OCV at the welding site. (For Codes 10911  
and above.)  
WARNING  
Pipe Thawing with an arc welder can cause fire,  
explosion, damage to electric wiring or to the arc  
welder if done improperly. The use of an arc  
welder for pipe thawing is not approved by the  
CSA, nor is it recommended or supported by  
Lincoln Electric.  
Remote Control Kit (K2464-1) - Contains remote  
control rheostat (for adjusting the CC “STICK OVC),  
remote control potentiometer (for adjusting the CV  
“WIRE” OCV) and 100 ft. (30.5 m) cable.  
------------------------------------------------------------------------  
TIG OPTIONS  
Power Plug Kit (K802D) - A power plug kit for the  
auxiliary power receptacles is available. (Provides a  
plug for each receptacle.)  
TIG Module (K930-2) - Provides high frequency and  
shielding gas control for AC and DC GTAW (TIG)  
welding applications. Its compact case is designed for  
easy carrying, complete with a handle. High frequen-  
cy bypass is built in.The K938-1 Contactor Kit must  
be field installed in the TIG Module when used with a  
ZR-10. Additionally, the K936-3 control cable is  
required if remote control is used. If remote control is  
not used the K936-4 control cable is required.  
GFCI Receptacle Kit (K1690-1) - Includes one UL  
approved 115V ground fault circuit interrupter duplex  
type receptacle with cover and installation instruc-  
tions. Replaces the factory installed 115V duplex  
receptacle. Each receptacle of the GFCI duplex is  
rated at 20 amps. Maximum total current from the  
GFCI duplex is limited to 20 amps. See the MAINTE-  
NANCE section for detailed information on testing and  
resetting the GFCI receptacle.  
PTA-26V TIG Torch K1783-9-Air cooled 200 amp-  
torch equipped with valve for gas flow control. 25Ft.  
length.  
Spark Arrestor Kit (K903-1) - Includes a heavy gage  
steel, approved spark arrestor, clamp and adapter for  
mounting to the muffler exhaust pipe.  
Magnum Parts Kit For PTA-26V TIG Torch KP509  
Remote Control Cable (K936-4) - Control cable for  
connecting the K930-2 TIG Module to a ZR-10 not  
equipped with a K892-1 Remote Kit. 9-Socket to a  
grounded 115 V plug and a 6 pin MS-connector.  
(Contains circuits 31, 32, and ground)  
K953-1 TRAILER - Two-wheeled trailer with optional fender  
and light package. For highway use, consult applicable feder-  
al, state, and local laws regarding possible additional require-  
ments. There is a choice of 2 hitches, a fender & a light pack-  
age.  
K953-1 Trailer  
Arc Start Switch K814  
Contactor Kit K938-1  
K958-1 Ball Hitch  
K958-2 Lunette Eye Hitch  
K959-1 Fender & Light Kit  
K965-1 Cable Rack  
Control Cable Extension K937-45-Cable is 45Ft. in  
length.  
OIL DRAIN KIT K1586-1 - Includes ball valve, hose  
and clamp.  
Water Valve Kit K844-1-For use with a water-cooled  
TIG torch. Installs inside TIG Module.  
STICK OPTIONS  
K704 ACCESSORY SET - Includes 35 feet (10 m) of  
electrode cable and 30 feet (9 m) of work cable, head-  
shield, work clamp and electrode holder. Cable is  
rated at 500 amps, 60% duty cycle.  
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C-2  
C-2  
ACCESSORIES  
Wire Feed Module (K623-1) - Provides constant  
voltage (CV) output with improved arc stability for  
Innershield welding. Excellent for MIG welding.  
Recommended wire feeders are the LN-7, LN-23P  
and LN-25. (Factory installed on the K1643-2).  
SG Control Module K488-The interface between the  
power source and the spool gun. Provides control of  
wire speed and gas flow.  
Input Cable K691-10.-For Lincoln engine drives with  
14-pin MS-type connection, separate 115V NEMA  
receptacle and output stud connections. 10 ft.  
length.  
LN-25 Wire Feeder K449-Portable CC/CV unit for  
flux-cored and MIG welding. Includes Gas Solenoid &  
Internal Contactor. Requires Wire Feed Module.  
Remote Voltage Control Kit for LN-25 K444-2  
Provides 25 ft. (7.5m) of remote output voltage control  
and output jumper (2 and 4) for machines having 14  
pin MS-type connector.  
Magnum® 350 Innershield Gun (for LN-25)K126-2-  
For self-shielded wire with 15 ft. (4.5m) cable. For  
.062-3/32” (1.6-2.8mm) wire.  
Magnum® 200 MIG Gun (for LN-25)K497-3-With  
15 ft. (4.5m) cable. For .025 (0.6m) wire.  
Magnum Gun Connector KiT-Connects Magnum  
200 MIG gun to LN-25 Wire Feeder.  
LN-23P Wire Feeder K316L-1-Portable CV unit for  
Innershield pipe welding. Control cable operates con-  
tactor inside Wire Feed Module for “cold” electrode.  
Requires LN-23P Adapter Kit (K350-1) and Gun and  
Cable Assembly.  
LN-23P Adapter Kit K350-1-Required to adapt LN-  
23P to any Lincoln power source. Makes 14 pin con-  
nection at power source.  
Magnum® 250 Innershield Gun (for LN-23P) K355-  
10-For lighter weight and easier handling. Rated 250  
amps, 60% duty cycle. For .068 through 5/64” (1.7  
through 2.0 mm) Innershield wire and includes  
reduced speed switch. For pipewelding, an M11476  
62° gun tube is recommended.  
62° gun tube for Pipe Welding KP1909-1-  
Recommended modification for K355-X or K345-x  
guns with 90° gun tubes. Compatible with K126-1,-  
2,K264_8 and K355-10.  
SPOOL GUN WELDER  
Magnum Spool Gun K487-25-Hand held semiauto-  
matic wire feeder requires SG Control Module. 25 ft.  
length.  
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D-1  
D-1  
MAINTENANCE  
MAINTENANCE  
4. When necessary, remove the sediment bowl, if so  
equipped, from beneath the fuel tank and clean out  
any accumulated dirt and water.  
WARNING  
Have qualified personnel do the maintenance  
work. Turn the engine off before working inside  
the machine. In some cases, it may be neces-  
sary to remove safety guards to perform  
required maintenance. Remove guards only  
when necessary and replace them when the  
maintenance requiring their removal is com-  
plete. Always use the greatest care when work-  
ing near moving parts.  
5. Follow the engine service schedule in this manual  
and the detailed maintenance and troubleshooting in  
the engine manufacturer’s manual.  
Cooling System  
The Classic 300 D is equipped with a pressure radia-  
tor. Keep the radiator cap tight to prevent loss of  
coolant. Clean and flush the cooling system periodi-  
cally to prevent clogging the passage and overheating  
the engine. When antifreeze is needed, always use  
the permanent type. Capacity = 9.5 qts (9.0 Ltrs.).  
Do not put your hands near the engine cooling  
blower fan. If a problem cannot be corrected by  
following the instructions, take the machine to  
the nearest Lincoln Field Service Shop.  
-----------------------------------------------------------------------  
ELECTRIC SHOCK can kill.  
Bearings  
This welder is equipped with a double-shielded ball  
bearing having sufficient grease to last indefinitely  
under normal service. Where the welder is used con-  
stantly or in excessively dirty locations, it may be nec-  
essary to add one half ounce of grease per year. A  
pad of grease one inch wide, one inch long, and one  
inch high weighs approximately one half ounce. Over-  
greasing is far worse than insufficient greasing.  
• 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.  
When greasing the bearings, keep all dirt out of the  
area. Wipe the fittings completely clean and use clean  
equipment. More bearing failures are caused by dirt  
introduced during greasing than from insufficient  
grease.  
------------------------------------------------------------------------  
MOVING PARTS can injure.  
• Do not operate with doors open or  
guards off.  
Commutator and Brushes  
• Stop engine before servicing.  
• Keep away from moving parts.  
WARNING  
------------------------------------------------------------------------  
See additional warning information at  
Uncovered rotating equipment can be dangerous.  
Use care so your hands, hair, clothing or tools do  
not catch in the rotating parts. Protect yourself  
from particles that may be thrown out by the rotat-  
front of this operator’s manual.  
-----------------------------------------------------------  
ing armature when stoning the commutator.  
General Instructions  
------------------------------------------------------------------------  
Shifting of the commutator brushes may result in:  
- Change in machine output  
1. Blow out the welder and controls with an air hose at  
least once every two months. In particularly dirty loca-  
tions, this cleaning may be necessary once a week.  
Use low pressure air to avoid driving dirt into the insu-  
lation.  
- Commutator damage  
- Excessive brush wear  
Periodically inspect the commutator, slip rings, and  
brushes by removing the covers. DO NOT remove or  
replace these covers while the machine is running.  
Commutators and slip rings require little attention.  
However, if they are black or appear uneven, have  
them cleaned by an experienced maintenance man  
using fine sandpaper or a commutator stone. Never  
use emery cloth or paper for this purpose.  
2. “Current Range Selector” contacts should not be  
greased. To keep the contacts clean, rotate the cur-  
rent control through its entire range frequently. Good  
practice is to turn the handle from maximum to mini-  
mum setting twice each morning before starting to  
weld.  
3. Put a drop of oil on the “Current Range Selector”  
shaft at least once every month.  
CLASSIC 300D  
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D-2  
D-2  
MAINTENANCE  
Replace brushes when they wear within 1/4” of the  
pigtail. A complete set of replacement brushes should  
be kept on hand. Lincoln brushes have a curved face  
to fit the commutator. Have an experienced mainte-  
nance man seat these brushes by lightly stoning the  
commutator as the armature rotates at full speed until  
contact is made across the full face of the brushes.  
After stoning, blow out the dust with low pressure air.  
Purging Air from Fuel System (Perkins  
104-22 Engine)  
WARNING  
Keep fuel clear of open flames or arcs, allow  
engine to cool before working on the fuel system.  
Wipe up any spilled fuel and do not start engine  
until fumes clear.  
------------------------------------------------------------------------  
If the engine is running rough and you suspect air has  
been trapped in the fuel system, (e.g. the engine was  
allowed to run out of fuel) perform the following steps  
using qualified personnel:  
To seat slip ring brushes, position the brushes in  
place. Then slide one end of a piece of fine sandpaper  
between slip rings and brushes with the coarse side  
against the brushes. With slight additional finger pres-  
sure on top of the brushes, pull the sandpaper around  
the circumference of the rings - in direction of rotation  
only - until brushes seat properly. In addition, stone  
slip ring with a fine stone. Brushes must be seated  
100%.  
1. Loosen by two or three turns, the vent screw  
(Figure D.1) on the fuel inlet connection.  
Arcing or excessive exciter brush wear indicates a  
possible misaligned shaft. Have an authorized Field  
Service Shop check and realign the shaft.  
Vent Screw  
Idler Maintenance  
CAUTION  
Before doing electrical work on the idler printed  
circuit board, disconnect the battery.  
Priming  
Lever  
------------------------------------------------------------------------  
When installing a new battery or using a jumper bat-  
tery to start the engine, be sure the battery polarity is  
connected properly. The correct polarity is negative  
ground. Damage to the engine alternator and the  
printed circuit board can result from incorrect connec-  
tion.  
FIGURE D.1  
2. For Engines Equipped with a mechanical fuel pump:  
Operate the priming lever on the fuel lift pump until  
fuel, free of air, flows from the vent point. Tighten  
the vent screw. If the pump is at the point of maxi-  
mum lift, it will not be possible to operate the prim-  
ing lever. If this occurs, turn the crankshaft one  
revolution.  
1. The solenoid plunger must work freely and not  
bind. Dust the plunger about once a year with  
graphite powder.  
For Engines Equipped with an electric fuel pump:  
Operate the electric fuel pump by turning the  
“Ignition” switch “ON” until fuel, free of air, flows  
from the vent point. Tighten the vent screw.  
2. Proper operation of the idler requires good ground-  
ing of the printed circuit board, reed switch, and  
battery.  
3. Contact your Perkins Engine repair facility if prob-  
lems persist.  
3. Idler solenoid is activated for high idle.  
4. If desired, the welder can be used without automat-  
ic idling by setting the “Idler” switch to the “High”  
position.  
Nameplates  
Whenever routine maintenance is performed on this  
machine - or at least yearly - inspect all nameplates  
and labels for legibility. Replace those which are no  
longer clear. Refer to the parts list for the replace-  
ment item number.  
CLASSIC 300D  
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D-3  
D-3  
MAINTENANCE  
FOR CODES 10658 AND BELOW  
ENGINE SERVICE  
EVERY DAY OR EVERY 8 HOURS  
FIRST SERVICE-(20 / 50 HOURS)  
EVERY 100 HOURS OR 3 MONTHS  
EVERY 200 HOURS OR 6 MONTHS  
EVERY 400 HOURS OR 12 MONTHS  
EVERY 600 HOURS OR 18 MONTHS  
ENGINE SERVICE (NOTE 2)  
TYPE OR QUANTITY  
MAINTENANCE ITEM  
Coolant level  
I
I
I
Concentration of antifreeze  
Coolant (NOTE 3)  
50/50 Water/Ethylene Glycol  
9.5qrts, (9.0L)  
R
Engine oil level (NOTE 1)  
Engine oil (NOTE 1 & 3)  
Engine oil filter  
8.7qrts, (8.2L) (including filter)  
Perkins #140517000  
R
R
C
R
R
C
Drain water separator & fuel strainer  
Fuel filter canister  
Perkins #1300366120  
R
I
Tension of alternator drive belt  
Alternator drive belt wear  
Alternator drive belt  
I
R
Perkins # 080109080  
C
C
I
Air filter (earlier check may be req'd.)  
Air filter element  
R
Donaldson #P181050 or Nelson #70206N  
Check and adjust idle speed  
Tighten cylinder head  
Valve clearances  
I
I
I
Intake .008", exhaust .008"  
Electrical systems  
I
All nuts and bolts for tightness  
Injector performance  
Leaks or engine damage  
Battery  
I
Contact Perkins  
BCI Group 24  
I
I
I = Inspect  
NOTES:  
(1) Consult Engine Operators Manual for oil recommendations.  
C = Clean  
R = Replace  
(2) Consult Engine Operators Manual for additional maintenance schedule information.  
(3) Fill slowly! Ensure correct quantity is used.  
Above operations to be carried out by trained personnel with reference to the workshop manual where necessary.  
These preventive maintenance periods apply to average conditions of operation.  
If necessary use shorter periods.  
5/06  
S20919-2  
CLASSIC 300D  
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D-4  
D-4  
MAINTENANCE  
FOR CODES 10911 AND ABOVE  
ENGINE SERVICE  
EVERY DAY OR EVERY 8 HOURS  
FIRST SERVICE-(20 / 50 HOURS)  
EVERY 100 HOURS OR 3 MONTHS  
EVERY 200 HOURS OR 6 MONTHS  
EVERY 400 HOURS OR 12 MONTHS  
EVERY 600 HOURS OR 18 MONTHS  
ENGINE SERVICE (NOTE 2)  
TYPE OR QUANTITY  
MAINTENANCE ITEM  
Coolant level  
Concentration of antifreeze  
Coolant (NOTE 3)  
I
I
50/50 Water/Ethylene Glycol  
9.5qrts., 9.0L  
I
R
Engine oil level (NOTE 1)  
Engine oil (NOTE 1 & 3)  
Engine oil filter  
8.7qrts, 8.2L (including filter)  
Perkins #140517000  
R R  
R R  
C C  
Drain water separator & fuel strainer  
Fuel filter canister  
R
I
Perkins #26560017  
Tension of alternator drive belt  
Alternator drive belt wear  
Alternator drive belt  
Air filter (earlier check may be req’d.)  
Air filter element  
I
R
Perkins #080109080  
C C  
I
R
Donaldson #P181050, Nelson #70206N  
Check and adjust idle speed  
Tighten cylinder head  
Valve clearances  
I
I
I
I
Intake .008", exhaust .008"  
Contact Perkins  
Electrical systems  
All nuts and bolts for tightness  
Injector performance  
I
I
I
Leaks or engine damage  
Battery  
I = Inspect  
Notes:  
C = Clean  
R = Replace  
(1) Consult Engine Operators Manual for oil recommendations.  
(2) Consult Engine Operators Manual for additional maintenance schedule information.  
(3) Fill slowly! Ensure correct quantity is used.  
Above operations to be carried out by trained personnel with reference to the workshop manual where necessary.  
These preventive maintenance periods apply to average conditions of operation.  
S25557  
If necessary use shorter periods.  
CLASSIC 300D  
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D-5  
D-5  
MAINTENANCE  
GFCI RECEPTACLE TESTING AND RESET-  
TING PROCEDURE  
The GFCI receptacle should be properly tested at  
least once every month or whenever it is tripped. To  
properly test and reset the GFCI receptacle:  
• If the receptacle has tripped, first carefully remove  
any load and check it for damage.  
• If the equipment has been shut down, it must be  
restarted.  
• The equipment needs to be operating at high idle  
speed and any necessary adjustments made on the  
control panel so that the equipment is providing at  
least 80 volts to the receptacle input terminals.  
• The circuit breaker for this receptacle must not be  
tripped. Reset if necessary.  
• Push the "Reset" button located on the GFCI recep-  
tacle. This will assure normal GFCI operation.  
• Plug a night-light (with an "ON/OFF" switch) or other  
product (such as a lamp) into the GFCI receptacle  
and turn the product "ON".  
• Push the "Test" button located on the GFCI recepta-  
cle. The night-light or other product should go  
"OFF".  
• Push the "Reset" button, again. The light or other  
product should go "ON" again.  
If the light or other product remains "ON" when the  
"Test" button is pushed, the GFCI is not working prop-  
erly or has been incorrectly installed (miswired). If  
your GFCI is not working properly, contact a qualified,  
certified electrician who can assess the situation,  
rewire the GFCI if necessary or replace the device.  
CLASSIC 300D  
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E-1  
E-1  
TROUBLESHOOTING  
TROUBLESHOOTING  
ELECTRIC SHOCK can kill.  
WARNING  
• Do not touch electrically live parts or  
electrode with skin or wet clothing.  
• Insulate yourself from work and  
ground  
Have qualified personnel do the troubleshooting  
work. Turn the engine off before working inside  
the machine. In some cases, it may be neces-  
sary to remove safety guards to perform  
required maintenance. Remove guards only  
when necessary and replace them when the  
maintenance requiring their removal is com-  
plete. Always use the greatest care when work-  
ing near moving parts.  
• Always wear dry insulating gloves.  
------------------------------------------------------------------------  
ENGINE EXHAUST can kill.  
• Use in open, well ventilated areas or  
vent exhaust outside.  
------------------------------------------------------------------------  
MOVING PARTS can injure.  
• Do not operate with doors open or  
guards off.  
Do not put your hands near the engine cooling  
blower fan. If a problem cannot be corrected by  
following the instructions, take the machine to  
the nearest Lincoln Field Service Shop.  
• Stop engine before servicing.  
• Keep away from moving parts.  
------------------------------------------------------------  
------------------------------------------------------------------------  
See additional warning information at the  
front of this operator’s manual  
------------------------------------------------------------  
CAUTION  
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your  
Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.  
CLASSIC 300D  
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E-2  
E-2  
TROUBLESHOOTING  
WELDER TROUBLESHOOTING  
TROUBLE  
CAUSES  
WHAT TO DO  
1.  
Machine fails to hold  
a.  
b.  
c.  
Rough or dirty commutator.  
a.  
b.  
c.  
Commutator should be turned or  
cleaned.  
the output (heat) consistently.  
Brushes may be worn down to  
limit.  
Replace brushes.  
Field circuit may have variable  
resistance connection or  
Check field current with ammeter to  
discover varying current. This  
applies to both the main generator  
and exciter.  
intermittent open circuit due to  
loose connection or broken wire.  
d.  
e.  
f.  
Electrode lead or work lead  
connection may be poor.  
d.  
e.  
f.  
Tighten all connections.  
Use Lincoln brushes.  
Wrong grade of brushes may  
have been installed on generator.  
Field rheostat may be making  
poor contact and overheating.  
Inspect and clean the rheostat.  
2.  
Welder starts but fails  
to generate current.  
a.  
Generator or exciter brushes  
may be loose or missing.  
a.  
Be sure that all brushes bear on the  
commutator and have proper spring  
tension.  
b.  
c.  
Exciter may not be operating.  
b.  
c.  
Check exciter output voltage with  
voltmeter or lamp.  
Field circuit of generator or  
exciter may be open.  
Check for open circuits in rheostat,  
field leads, and field coils. Check  
rectifier bridge.  
d.  
e.  
Exciter may have lost excitation.  
d.  
e.  
Flash fields. (1) Check flashing  
diode at 5 o’clock brushholder in  
generator.  
Series field and armature circuit  
may be open-circuited.  
Check circuit with ringer or voltmeter.  
(1)  
FLASHING THE FIELDS:  
1.  
2.  
3.  
Stop the engine welder and remove the cover from the exciter.  
Turn the “Fine Current Adjustment” (rheostat) to “100” on the dial.  
Using a 12 volt automotive battery, connect it’s negative terminal to the negative brushholder. The  
negative brushholder is the one nearest to the rotor lamination. See the wiring diagram. With the  
engine NOT running, touch the positive battery terminal to the positive brushholder. Remove the  
battery from the circuit.  
4.  
Replace the exciter cover. Start the welder and the generator voltage should build up.  
3.  
4.  
Welding arc is loud and  
spatters excessively  
a.  
b.  
Current setting may be too high.  
Polarity may be wrong.  
a.  
b.  
Check setting and current output with ammeter.  
Check polarity. Try reversing polarity or try an  
electrode of the opposite polarity.  
Welding current too great or too  
small compared to indication on  
the dial.  
a.  
b.  
Exciter output low causing low output  
compared to dial indication.  
a.  
b.  
Check exciter field circuit.  
Operating speed too low or too high.  
Adjust speed with screw stops at throttle linkage.  
(High idle - 1800 RPM, Low idle - 1375 RPM)  
5.  
Arc continuously pops out.  
a.  
“Current Range Selector” switch may be  
set at an intermediate position.  
a.  
Set the switch at the center of the current range  
desired.  
CLASSIC 300D  
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E-3  
E-3  
TROUBLESHOOTING  
ELECTRONIC IDLER TROUBLESHOOTING GUIDE  
With Idler Control Switch in the Auto Position,  
Engine Will Not Return to Low Idle in Approximately 15 Seconds  
After Welding and Auxiliary Loads are Removed  
Set Idler Control Switch  
to the Auto Position  
Check for Continuity through Idler  
Control Switch  
Open  
Closed  
Measure DC Voltage on  
Idler Solenoid Coil  
Replace Idler  
Control Switch  
12 VDC  
0 VDC  
Check Continuity of  
Reed Switch in Weld Circuit  
Check for Jamming  
of the Idler Solenoid  
Mechanism or a broken  
Return Spring  
Open  
Closed  
1. Check Wiring in  
Idler Solenoid  
Circuit  
Replace Reed  
Switch  
2. Replace Idler  
P.C. Board  
CAUTION  
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your  
Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.  
CLASSIC 300D  
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E-4  
E-4  
TROUBLESHOOTING  
ELECTRONIC IDLER TROUBLESHOOTING GUIDE  
With Idler Control Switch in the AUTO Position,  
Engine Will Not Pick Up Speed When:  
The Arc is Struck  
The Auxiliary Power Load is Turned ON  
Reed Switch in Weld Circuit  
Defective -- Will Not Close  
Power Load Too Small  
Try Load Above 150 Watts  
To Check: Short the Red Lead  
on P.C. Board to Welder Frame.  
Engine Does Not Pick Up Speed  
1. Check Continuity of Idler Solenoid Coil  
(8.5-9.0 ohms) and Replace as  
Required.  
2. Check for Jamming of the Idler  
Solenoid Mechanism.  
Engine Picks Up Speed  
Engine Does Not Pick Up  
Speed  
3. Check for Continuity of Current  
Transformer (Toroid). Replace as  
Required.  
1. Check for Break in  
Red Lead and Repair  
1. Check Continuity of Idler  
Solenoid Coil (8.5-9.0  
ohms) and Replace as  
Required.  
2. Replace Reed Switch  
in Weld Circuit.  
4. Check Idler Circuit Wiring and Repair  
as Required.  
2. Check for Jamming of  
the Idler Solenoid  
Mechanism.  
5. Replace Idler P.C. Board.  
3. Check Idler Circuit  
Wiring and Repair as  
Required.  
4. Replace Idler P.C.  
Board.  
CAUTION  
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your  
Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.  
CLASSIC 300D  
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E-5  
E-5  
TROUBLESHOOTING  
ENGINE TROUBLESHOOTING  
TROUBLE  
CAUSES  
WHAT TO DO  
1.  
Engine does not start  
Faulty Ignition switch and or Injector pump solenoid  
Insufficient charging or complete discharge of the battery  
Lack of fuel  
Correct the connection and contact.  
Charge.  
Supply fuel.  
Air mixed in the fuel system  
Bleed air (To be done by qualified personnel only)  
Replace.  
Clogged fuel filter  
Irregular and faulty fuel supply (Injector pump trouble)  
Glow plug not heated  
Repair in an authorized service shop.  
Breakage of the glow plug; replace.  
Inspect and replace.  
Improper viscosity of the lubricating oil  
Clogged air cleaner  
Clean or replace.  
No compression  
Repair in a service shop.  
Engine protection light is ON  
60 second start period elapsed, Turn ignition switch  
OFF & ON - See #4 Below.  
Bleed air (To be done by qualified personnel only)  
Repair in an authorized service shop.  
Replace.  
2.  
Irregular running of the engine  
Air mixed in the fuel system  
Uneven fuel injection (Faulty fuel injector pump)  
Clogged fuel filter  
Defective governor  
Check and correct.  
Engine itself defective  
Repair in an authorized service shop.  
3.  
4.  
Engine stops during operation  
and the Engine Protection light  
does not turn on.  
Lack of fuel in the fuel tank  
Clogged fuel filter  
Supply fuel and bleed air (To be done by qualified personnel only)  
Replace.  
Air mixed in the fuel system  
Faulty function of the engine  
a. Overheat of the Engine  
Lack of Coolant  
Bleed air (To be done by qualified personnel only)  
Repair in a service shop.  
Engine stops during operation  
and the Engine Protection light  
does turn on.  
Supply coolant. Inspect leakage and correct.  
Remove oil, dust, etc. and tighten.  
Replace.  
Loose or slipping fan belt  
Damaged fan belt  
Clogged radiator  
Flush the radiator.  
Clean.  
Clogged radiator fin  
Dust or scale clogged in the cooling water passage  
Faulty function of the thermostat  
Lack of lubricating oil.  
Flush the system.  
Inspect or replace thermostat.  
Add oil.  
Overloading  
Decrease the load.  
Replace.  
Faulty Idler/Engine Protection P.C. Board  
b. Loss of Engine Oil Pressure  
Lack of engine oil  
Supply oil up to the specified level.  
Replace the switch.  
Fault in the Oil Pressure Switch  
Oil leakage from the lubricating system  
Clogged oil filter  
Inspect and retighten.  
Replace with new one.  
Drain and refill with proper grade.  
Replace.  
Oil too light  
Faulty Idler/Engine Protection P.C. Board  
Excess engine oil  
5.  
6.  
White or Blue Smoke  
Dark Grey Smoke  
Inspect and correct the level.  
Inspect and replace the oil with proper grade.  
Repair in a service shop.  
Inspect and replace with correct grade.  
Inspect and adjust (in a service shop).  
Repair in a service shop.  
Reduce the load.  
Too low viscosity of the engine oil  
Faulty injection timing  
Unsuitable fuel  
Excess injection  
Faulty function of the engine  
Overloading  
Clogged air cleaner  
Clean.  
7.  
Faulty Charging  
Loose fan belt  
Correct the tension.  
Inspect and correct.  
Repair.  
Faulty wiring  
Faulty battery  
Worn out alternator brush  
Loose or damaged wiring  
Drained voltage from battery  
Damaged starter motor (including solenoid)  
Broken Light Bulb  
Replace.  
8.  
9.  
Starter Motor does not run  
Inspect and tighten.  
Charge the battery.  
Repair in a service shop.  
Replace the bulb.  
Engine Protection Light not  
coming on (after the ignition  
switch has been in the ON  
position for more than 60  
seconds with the engine  
not started).  
Faulty light wiring (to GND or P.C. Board)  
Faulty Idler/Engine Protection P.C. Board  
Correct.  
Replace.  
CAUTION  
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your  
Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.  
CLASSIC 300D  
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F-1  
F-1  
DIAGRAMS  
}
A
+
CLASSIC 300D  
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F-2  
F-2  
DIAGRAMS  
}
+
CLASSIC 300D  
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F-3  
F-3  
DIAGRAMS  
K2464-1 REMOTE CONTROL  
WIRING / CONNECTION DIAGRAM  
X
Y
G
B
W
CV "WIRE" CONTROL POT  
CCW  
RESISTORS  
CC "STICK CONTROL  
BLUE  
ORANGE  
RED  
CABLE CONNECTION TABLE  
LEAD COLOR  
PIN  
E
RED  
F
ORANGE  
BLUE  
G
C
D
WHITE JUMPER  
REMOTE CONTROL BOX  
CONNECT TO CASE  
WHITE JUMPER  
A
S26097  
CLASSIC 300D  
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F-4  
F-4  
DIAGRAMS  
A
A
A
A
A
A
CLASSIC 300D  
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● Do not touch electrically live parts or  
electrode with skin or wet clothing.  
● Insulate yourself from work and  
ground.  
● Keep flammable materials away.  
● Wear eye, ear and body protection.  
WARNING  
Spanish  
● No toque las partes o los electrodos ● Mantenga el material combustible  
● Protéjase los ojos, los oídos y el  
bajo carga con la piel o ropa moja-  
da.  
● Aislese del trabajo y de la tierra.  
fuera del área de trabajo.  
cuerpo.  
AVISO DE  
PRECAUCION  
French  
● Ne laissez ni la peau ni des vête-  
ments mouillés entrer en contact  
avec des pièces sous tension.  
● Gardez à l’écart de tout matériel  
inflammable.  
● Protégez vos yeux, vos oreilles et  
votre corps.  
ATTENTION  
● Isolez-vous du travail et de la terre.  
German  
● Berühren Sie keine stromführenden  
Teile oder Elektroden mit Ihrem  
Körper oder feuchter Kleidung!  
● Isolieren Sie sich von den  
● Entfernen Sie brennbarres Material! ● Tragen Sie Augen-, Ohren- und Kör-  
perschutz!  
WARNUNG  
Elektroden und dem Erdboden!  
Portuguese  
● Não toque partes elétricas e elec-  
trodos com a pele ou roupa molha-  
da.  
● Mantenha inflamáveis bem guarda- ● Use proteção para a vista, ouvido e  
dos.  
corpo.  
ATENÇÃO  
● Isole-se da peça e terra.  
Japanese  
Chinese  
Korean  
Arabic  
READ AND UNDERSTAND THE MANUFACTURER’S INSTRUCTION FOR THIS EQUIPMENT AND THE CONSUMABLES TO BE  
USED AND FOLLOW YOUR EMPLOYER’S SAFETY PRACTICES.  
SE RECOMIENDA LEER Y ENTENDER LAS INSTRUCCIONES DEL FABRICANTE PARA EL USO DE ESTE EQUIPO Y LOS  
CONSUMIBLES QUE VA A UTILIZAR, SIGA LAS MEDIDAS DE SEGURIDAD DE SU SUPERVISOR.  
LISEZ ET COMPRENEZ LES INSTRUCTIONS DU FABRICANT EN CE QUI REGARDE CET EQUIPMENT ET LES PRODUITS A  
ETRE EMPLOYES ET SUIVEZ LES PROCEDURES DE SECURITE DE VOTRE EMPLOYEUR.  
LESEN SIE UND BEFOLGEN SIE DIE BETRIEBSANLEITUNG DER ANLAGE UND DEN ELEKTRODENEINSATZ DES HER-  
STELLERS. DIE UNFALLVERHÜTUNGSVORSCHRIFTEN DES ARBEITGEBERS SIND EBENFALLS ZU BEACHTEN.  
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● Keep your head out of fumes.  
● Use ventilation or exhaust to  
remove fumes from breathing zone.  
● Turn power off before servicing.  
● Do not operate with panel open or  
guards off.  
WARNING  
Spanish  
● Los humos fuera de la zona de res-  
piración.  
● Mantenga la cabeza fuera de los  
humos. Utilice ventilación o  
aspiración para gases.  
● Desconectar el cable de ali-  
mentación de poder de la máquina  
antes de iniciar cualquier servicio.  
● No operar con panel abierto o  
guardas quitadas.  
AVISO DE  
PRECAUCION  
French  
● Débranchez le courant avant l’entre- ● N’opérez pas avec les panneaux  
tien.  
● Gardez la tête à l’écart des fumées.  
● Utilisez un ventilateur ou un aspira-  
teur pour ôter les fumées des zones  
de travail.  
ouverts ou avec les dispositifs de  
protection enlevés.  
ATTENTION  
German  
● Strom vor Wartungsarbeiten  
abschalten! (Netzstrom völlig öff-  
nen; Maschine anhalten!)  
● Anlage nie ohne Schutzgehäuse  
oder Innenschutzverkleidung in  
Betrieb setzen!  
● Vermeiden Sie das Einatmen von  
Schweibrauch!  
● Sorgen Sie für gute Be- und  
Entlüftung des Arbeitsplatzes!  
WARNUNG  
Portuguese  
● Não opere com as tampas removidas.  
● Desligue a corrente antes de fazer  
serviço.  
● Mantenha-se afastado das partes  
moventes.  
● Não opere com os paineis abertos  
ou guardas removidas.  
● Mantenha seu rosto da fumaça.  
● Use ventilação e exhaustão para  
remover fumo da zona respiratória.  
ATENÇÃO  
● Não toque as partes elétricas nuas.  
Japanese  
Chinese  
Korean  
Arabic  
LEIA E COMPREENDA AS INSTRUÇÕES DO FABRICANTE PARA ESTE EQUIPAMENTO E AS PARTES DE USO, E SIGA AS  
PRÁTICAS DE SEGURANÇA DO EMPREGADOR.  
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• World's Leader in Welding and Cutting Products •  
• Sales and Service through Subsidiaries and Distributors Worldwide •  
Cleveland, Ohio 44117-1199 U.S.A. TEL: 216.481.8100 FAX: 216.486.1751 WEB SITE: www.lincolnelectric.com  
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