Lincoln Electric PRO-CUT 80 Bedienungsanleitung

SVM146-A

September, 1999

Safety Depends on You

Lincoln arc welding and cutting

equipment is designed and built

with safety in mind. However,

your overall safety can be

increased by proper installation

. . . and thoughtful operation on

your part. DO NOT INSTALL,

OPERATE OR REPAIR THIS

EQUIPMENT WITHOUT READ-

ING THIS MANUAL AND THE

SAFETY PRECAUTIONS CON-

TAINED THROUGHOUT. And,

most importantly, think before

you act and be careful.

SERVICE MANUAL

For use with machine code numbers 10573, 10574, 10577, 10578

PRO-CUT ™80

• 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

• World's Leader in Welding and Cutting Products •

SAFETY

i i

PRO-CUT 80

FOR ENGINE

powered equipment.

1.a. Turn the engine off before troubleshooting and maintenance

work unless the maintenance work requires it to be running.

____________________________________________________

1.b.Operate engines in open, well-ventilated

areas or vent the engine exhaust fumes

outdoors.

____________________________________________________

1.c. Do not add the fuel near an open flame weld-

ing arc or when the engine is running. Stop

the engine and allow it to cool before refuel-

ing 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 equip-

ment.

____________________________________________________

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 con-

trol rods while the engine is running.

___________________________________________________

1.g. To prevent accidentally starting gasoline engines while

turning the engine or welding generator during maintenance

work, disconnect the spark plug wires, distributor cap or

magneto wire as appropriate.

ARC WELDING CAN BE HAZARDOUS. PROTECTYOURSELF AND OTHERS FROM POSSIBLE SERIOUS INJURY OR DEATH.

KEEP CHILDREN AWAY. PACEMAKER WEARERS SHOULD CONSULT WITHTHEIR DOCTOR BEFORE OPERATING.

Read and understand the following safety highlights.For additional safety information, it is strongly recommended that you pur-

chase 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.

WARNING

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.

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.

1.h. To avoid scalding, do not remove the

radiator pressure cap when the engine is

hot.

CALIFORNIA PROPOSITION 65 WARNINGS

Diesel engine exhaust and some of its constituents

are known to the State of California to cause can-

cer, birth defects, and other reproductive harm.

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 Diesel Engines The Above For Gasoline Engines

SAFETY

ii ii

PRO-CUT 80

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.

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.

FUMES AND GASES

can be dangerous.

5.a.Welding may produce fumes and gases

hazardous to health. Avoid breathing these

fumes and gases.When welding, keep

your head out of the fume. Use enough

ventilation and/or exhaust at the arc to keep

fumes and gases away from the breathing zone. When

welding 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.

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

form phosgene, a highly toxic gas, and other irritating

products.

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.

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.

5.e. Also see item 1.b.

SAFETY

iii iii

PRO-CUT 80

FOR ELECTRICALLY

powered equipment.

8.a.Turn off input power using the disconnect

switch at the fuse box before working on

the equipment.

8.b. Install equipment in accordance with the U.S. National

Electrical Code, all local codes and the manufacturer’s

recommendations.

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

Electrical Code and the manufacturer’s recommendations.

CYLINDER may explode

if damaged.

7.a. Use only compressed gas cylinders

containing the correct shielding gas for the

process used and properly operating

regulators designed for the gas and

pressure used. All hoses, fittings, 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.

7.c. Cylinders should be located:

•Away from areas where they may be struck or subjected to

physical damage.

•A safe distance from arc welding or cutting operations and

any other source of heat, sparks, or flame.

7.d. Never allow the electrode, electrode holder or any other

electrically “hot” parts to touch a cylinder.

7.e. Keep your head and face away from the cylinder valve outlet

when opening the cylinder valve.

7.f. Valve protection caps should always be in place and hand

tight except when the cylinder is in use or connected for

use.

7.g. Read and follow the instructions on compressed gas

cylinders, associated equipment, and CGA publication P-l,

“Precautions for Safe Handling of Compressed Gases in

Cylinders,” available from the Compressed Gas Association

1235 Jefferson Davis Highway, Arlington, VA 22202.

WELDING SPARKS can

cause fire or explosion.

6.a.

Remove fire hazards from the welding area.

If this is not possible, cover them to prevent

the welding sparks 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.

6.b. Where compressed gases are to be used at the job site,

special precautions should be used to prevent hazardous

situations. Refer to “Safety in Welding and Cutting” (ANSI

Standard Z49.1) and the operating information for the

equipment being used.

6.c. When not welding, make certain no part of the electrode

circuit is touching the work or ground. Accidental contact can

cause overheating and create a fire hazard.

6.d. Do not heat, cut or weld tanks, drums or containers until the

proper steps have been taken to insure that such procedures

will not cause flammable or toxic vapors from substances

inside. They can cause an explosion even

though

they have

been “cleaned”. For information, purchase “Recommended

Safe Practices for the

Preparation

for Welding and Cutting of

Containers and Piping That Have Held Hazardous

Substances”, AWS F4.1 from the American Welding Society

(see address above).

6.e. Vent hollow castings or containers before heating, cutting or

welding.They may explode.

6.f.

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

free protective garments such as leather gloves, heavy shirt,

cuffless trousers, high shoes and a cap over your hair.Wear

ear plugs when welding out of position or in confined places.

Always wear safety glasses with side shields when in a

welding area.

6.g. Connect the work cable to the work as close to the welding

area as practical. Work cables connected to the building

framework or other locations away from the welding area

increase the possibility of the welding current passing

through lifting chains, crane cables or other alternate circuits.

This can create fire hazards or overheat lifting chains or

cables until they fail.

6.h. Also see item 1.c.

SAFETY

iv iv

PRO-CUT 80

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:

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 tou-

jours 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 planch-

er 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 l’eau pour le

refroidir.

e. Ne jamais toucher simultanément les parties sous ten-

sion 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.

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

enroule le câble-électrode autour de n’importe quelle partie

du corps.

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

rayonnement 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 rayonnementde

l’arc.

c. Protéger l’autre personnel travaillant à proximité au

soudage à l’aide d’écrans appropriés et non-inflamma-

bles.

4. Des gouttes de laiter en fusion sont émises de l’arc de

soudage. Se protéger avec es vêtements de protection libres

de l’huile, tels que les gants en cuir, chemise épaisse, pan-

talons 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 l’on pique le laitier.

6. Eloigner les matériaux inflammables ou les recouvrir afin de

prévenir ttout risque d’incendie dû 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.

8. S’assurer que la masse est connectée le plus prés possible

de la zone de travail qu’il est pratique de la 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 levage, câbles de grue, ou atres 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 fumées toxiques.

10. Ne pas souder en présence de vapeurs de chlore provenant

d’opéerations 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 forte-

ment roxique) ou autres produits irritants.

PRÉCAUTIONS DE SÛRETÉ POUR LES

MACHINES À SOUDER À TRANSFOR-

MATEUR ET À REDRESSEUR

1. Relier à la terre le chassis du poste conformement au code

de l’électricité et aux recommendations du fabricant. Le dis-

positif de montage ou la piece à souder doit être branché à

une bonne mise à la terre.

2. Autant que possible, l’installation et l’entretien du poste

seront effectués par un électricien qualifié.

3. Avant de faires des travaux à l’interieur de poste, la

debrancher à l’interrupteur à la boite de fusibles.

4. Garder tous les couvercles et dispostifis de sûreté à leur

place.

MASTER TABLE OF CONTENTS FOR ALL SECTIONS

v v

PRO-CUT 80

Page

Safety.................................................................................................................................................i-iv

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

Technical Specifications ..........................................................................................................A-2/3

Safety Precautions......................................................................................................................A-4

Select Suitable Location.............................................................................................................A-4

Stacking ......................................................................................................................................A-4

Lifting and Moving ......................................................................................................................A-4

Tilting...........................................................................................................................................A-4

High Frequency Interference Protection.....................................................................................A-4

Input Electrical Connections.......................................................................................................A-5

Input Power Cord Connector Installation ...................................................................................A-5

Frame Grounding ........................................................................................................................A-5

Gas Input Connections ...............................................................................................................A-7

Output Connections....................................................................................................................A-8

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

Safety Precautions......................................................................................................................B-2

General Description ....................................................................................................................B-3

Recommended Processes and Equipment................................................................................B-3

Operational Features and Controls ............................................................................................B-3

Design Features and Advantages ..............................................................................................B-3

Cutting Capability .......................................................................................................................B-4

Consumable Life.........................................................................................................................B-4

Limitations ..................................................................................................................................B-4

Controls and Settings.................................................................................................................B-5

Pilot Arc Discussion....................................................................................................................B-5

Cutting Operation .......................................................................................................................B-5

User Responsibility.....................................................................................................................B-7

Preheat Temperature for Plasma Cutting ...................................................................................B-7

Procedure Recommendations ....................................................................................................B-7

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

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

Theory of Operation .............................................................................................................Section E

Troubleshooting and Repair.................................................................................................Section F

Safety Precautions ......................................................................................................................F-2

How to Use Troubleshooting Guide............................................................................................F-2

Troubleshooting Guide ................................................................................................................F-4

Test Procedures ........................................................................................................................F-10

Replacement Procedures .........................................................................................................F-40

Electrical Diagrams..............................................................................................................Section G

Parts Manual....................................................................................................................P-340 Series

TABLE OF CONTENTS

- INSTALLATION SECTION -

Section A-1 Section A-1

PRO-CUT 80

Installation

Technical Specifications .............................................................................................................A-2

Safety Precautions......................................................................................................................A-4

Select Suitable Location.............................................................................................................A-4

Stacking......................................................................................................................................A-4

Lifting and Moving ......................................................................................................................A-4

Tilting ..........................................................................................................................................A-4

High Frequency Interference Protection.....................................................................................A-4

Input Electrical Connections.......................................................................................................A-5

Ground Connection ..............................................................................................................A-5

Input Power Cord Connector Installation...................................................................................A-5

Input Wire and Fuse Size .....................................................................................................A-5

Reconnect Procedure...........................................................................................................A-6

Gas Input Connections...............................................................................................................A-7

Output Connections ...................................................................................................................A-8

Torch Connection .................................................................................................................A-8

INSTALLATION

A-2 A-2

PRO-CUT 80

TECHNICAL SPECIFICATIONS - PRO-CUT 80

INPUT RATINGS

Single Phase Input Input Currents Rated Output Amps

Voltage and Hertz

208/1/60 87 80

230/1/60 81 80

460/1/60 48 80

Three Phase Input Input Currents Rated Output Amps

Voltage and Hertz

208/3/60 48 80

230/3/60 44 80

460/3/60 25 80

IDLE CURRENT AND WATTS

230/1/60 0.61 Amps 140 Watts

RATED OUTPUT

Duty Cycle Rated Output Amps

60% 80

100% 60

OUTPUT

Current Range Open Circuit Voltage Pilot Current

35 - 85 Amps 335VDC Maximum 20 Amps @ 100%

Duty Cycle

INSTALLATION

A-3 A-3

PRO-CUT 80

TECHNICAL SPECIFICATIONS (Cont’d) - PRO-CUT 80

GAS REQUIREMENTS

Required Gas Flow Rate Required Gas Inlet Pressure

70 PSI @ 480 SCHF 80 to 150 PSI

(4.8 Bar. @ 13550 LHR) (5.4 Bar. to 10.2 Bar.)

RECOMMENDED INPUT WIRE AND FUSE SIZES

For all plasma cutting applications based on U.S. National Electrical Code

Ambient Temperature 30°C or Less

AC Input Voltage Fuse (Super Lag) Type 75°C

at Circuit Breaker Copper Wire in Conduit AWG

60 Hertz (Delay Type) (IEC) Sizes

230VAC Single Phase 100 Amps #4 (21.1mm2) #4 (21.1mm2)

460VAC Single Phase 60 Amps #8 (8.4mm2) #8 (8.4mm2)

230VAC Three Phase 60 Amps #8 (8.4mm2) #8 (8.4mm2)

460VAC Three Phase 40 Amps #10 (5.3mm2) #10 (5.3mm2)

PHYSICAL DIMENSIONS

Height Width Depth Weight with

Torch Cable

16.5 Inches 13.75 Inches 29.5 Inches 98 lbs. (44.5 kg.)

419 mm 349 mm 749 mm (25 ft. cable)

113 lbs. (51.4 kg.)

(50 ft. cable)

Read this entire installation section before you

start installation.

SAFETY PRECAUTIONS

ELECTRIC SHOCK can kill.

¥ Turn the input power OFF at the

disconnect switch or fuse box

and discharge input capacitors

before working inside the equip-

ment.

¥ Do not touch electrically hot parts or electrodes with

your skin or wet clothing.

¥ Always connect the 80 grounding terminal (located

on the side of the Case Back Assembly) to a good

electrical earth ground.

¥ Always wear dry, insulating gloves.

¥ Turn the 80 Power Switch OFF when connecting

power cord to input power.

Only qualified personnel should install, use, or ser-

vice this equipment.

SELECT SUITABLE LOCATION

Place the PRO-CUT 80 where clean cool air can freely

circulate in through the rear louvers and out through

the front/bottom opening. Dirt, dust or any foreign

material that can be drawn into the machine should be

kept at a minimum. Failure to observe these precau-

tions can result in excessive operating temperatures

and nuisance shutdown of the machine.

A source of clean, dry air or nitrogen must be supplied

to the PRO-CUT 80. Oil in the air is a severe problem

and must be avoided. The supply pressure must be

between 80 and 150 psi. The flow rate is approximate-

ly 6.0 cfm (170 l/min.). Failure to observe these pre-

cautions could result in excessive operating tempera-

tures or damage to the torch.

STACKING

The PRO-CUT 80 cannot be stacked.

LIFTING AND MOVING

FALLING EQUIPMENT can cause

injury.

¥ Do not use the pull handle on the

optional undercarriage, if installed,

to lift the machine. This handle is

not designed to support the full

weight of the machine. Using it to

lift the machine could cause per-

sonal injury or damage to the

machine.

¥ Either the front or rear handles or both may be used

to lift or move the machine.

TILTING

The PRO-CUT 80 must be placed on a stable, level

surface so it will not topple over.

HIGH FREQUENCY INTERFERENCE

PROTECTION

The PRO-CUT 80 employs a touch start mechanism

for arc initiation. This eliminates high frequency emis-

sions from the machine as compared with spark gap

and solid state type high frequency generators. Keep

in mind, though, that these machines may be used in

an environment where other high frequency generating

machines are operating. By taking the following steps,

you can minimize high frequency interference.

¥Make sure the power supply chassis is connected to

a good earth ground. The work terminal ground does

NOT ground the machine frame.

¥Keep the work ground clamp isolated from other work

clamps that have high frequency.

¥If the ground clamp cannot be isolated, then keep the

clamp as far as possible from other work clamp con-

nections.

¥When the machine is enclosed in a metal building,

several good earth driven electrical grounds around

the periphery of the building are recommended.

Failure to observe these recommended installation pro-

cedures may cause improper function of the Pro-Cut or

possibly even damage the control system or power

supply components.

INSTALLATION

A-4 A-4

PRO-CUT 80

WARNING

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