Harris POWERTORCH PLASMA 20 Скачать руководство пользователя страница 14 | Manualshive

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B-5

NOTES

POWERTORCH™ PLASMA 20

B-5

PILOT ARC DISCUSSION

The POWERTORCH™ PLASMA 20 has a smooth, contin-

uous pilot arc. The pilot arc is only a means of transferring

the arc to the workpiece for cutting. Repeated pilot arc

starts, in rapid succession, is not recommended as these

starts will generally reduce consumable life. Occasionally,

the pilot arc may sputter or start intermittently. This is

aggravated when the consumables are worn or the air

pressure is too high. Always keep in mind that the pilot

arc is designed to transfer the arc to the workpiece and

not for numerous starts without cutting.

When the pilot arc is started, a slight impulse will be felt in

the torch handle. This occurrence is normal and is the

mechanism which starts the plasma arc. This impulse can

also be used to help troubleshoot a "no start" condition.

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Содержание POWERTORCH PLASMA 20

Страница 1: ...OT 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 For use with machines having Code Number 11453 Gainesville GA 30504 6000 U S A TEL 866 236 0044 FAX 800 840 8684 Copyright Lincoln Global Inc This manual covers equipment which is no longer in production by The Lincoln Elec...

Страница 2: ...l frame work such as floors gratings or scaffolds and when in posi tions such as sitting or lying make certain the insulation is large enough to cover your full area of physical contact with work and ground 1 d Always be sure the work cable makes a good electrical con nection with the metal being cut or gouged The connection should be as close as possible to the area being cut or gouged 1 e Ground...

Страница 3: ...cylinders contain ing the correct 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 5 b Always keep cylinders in an upright position securely chained to an undercarriage or fixed support 5 c Cylinders should be located Away from areas where they may be stru...

Страница 4: ...s et non inflammables 4 Des gouttes de laitier en fusion sont émises de lʼarc de soudage Se protéger avec des vêtements de protection libres de lʼhuile tels que les gants en cuir chemise épaisse 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 lʼon pique le laitier 6 Eloign...

Страница 5: ..._______________________________ Date Purchased___________________________________________________________________________ Where Purchased_________________________________________________________________________ Whenever you request replacement parts or information on this equipment always supply the information you have recorded above CUSTOMER ASSISTANCE POLICY The business of our company is manuf...

Страница 6: ...ations B 2 Controls and Settings B 2 Cutting Operations B 3 Check Air Quality B 3 Cutting with a Hand Torch B 3 B 4 Pilot Arc Discussion B 5 Torch Consumable Parts Selection B 6 ________________________________________________________________________ Maintenance Section D Safety Precautions D 1 Routine Maintenance D 1 Periodic Maintenance D 1 Compressed Air Filter D 2 _____________________________...

Страница 7: ...ight 12 in 305 mm Open Circuit Voltage 310 VDC For all plasma cutting applications Based on U S National Electrical Code Ambient Temperature 30o C or Less Pilot Current 17 Amps AMPS 15 A 20 A 1Ø Input Current at Rated Output 115 1 50 60Hz 15 Amp Branch 115 V 20A 50 115 V 26A 40 3 5 cu ft min 100L min 72 5 to 150 PSI 5 Bar TO 10 3 Bar 20 A 15 A Output Plug Size POWERTORCH PLASMA 20 115 1 50 60Hz 20...

Страница 8: ... chassis is connected to a good earth ground The work terminal ground does NOT ground the machine frame 2 Keep the work clamp isolated from other work clamps that have high frequency 3 If the work clamp cannot be isolated then keep the clamp as far as possible from other work clamp connections 4 When the machine is enclosed in a metal building several good earth driven electrical grounds around th...

Страница 9: ...inder the cylinder must have a pressure regulator Maximum psi from a nitrogen gas cylinder to the POWERTORCH PLASMA 20 regulator should never exceed 150 psi 10 3 Bar Install a hose between the nitrogen gas cylin der regulator and the POWERTORCH PLASMA 20 gas inlet CYLINDER could explode if damaged Keep cylinder upright and chained to a fixed support Keep cylinder away from areas where it could be ...

Страница 10: ...t of the cycle is determined by an arc called the pilot arc which is struck between the moveable electrode negative polarity and the torch nozzle positive polarity due to a short circuit between these two elements When the torch is brought into direct contact with the workpiece to be cut connected to the positive polarity of the power source the pilot arc is transferred between the electrode and t...

Страница 11: ...e surface condi tion oil scale plate thickness preheat quench gas type gas flow rate and equipment may produce results different than those expected Some adjust ments to procedures may be necessary to compen sate for unique individual conditions Test all proce dures duplicating actual field conditions DESIGN FEATURES AND ADVANTAGES Light weight Continuous output control Indicator LEDs Cooling fan ...

Страница 12: ...hat the work lead is clamped to the work piece before cutting Set the output current control knob at maximum position for higher cutting speed and less dross for mation Reduce the current if desired to reduce the kerf cut width heat affected zone or travel speed as required POWERTORCH PLASMA 20 CUTTING OPERATIONS BEFORE CUTTING ELECTRIC SHOCK CAN KILL Disconnect input power by removing the plug fr...

Страница 13: ...ace the nozzle when the orifice exit is eroded away or oval shaped If the machine does not reset or continues to trip consult the Troubleshooting Section Use the proper cutting procedures referred to in Procedure Recommendations ELECTRIC SHOCK CAN KILL Disconnect input power by removing the plug from the receptacle before assembling or disassembling torch parts or torch and lead assemblies WARNING...

Страница 14: ...ble life Occasionally the pilot arc may sputter or start intermittently This is aggravated when the consumables are worn or the air pressure is too high Always keep in mind that the pilot arc is designed to transfer the arc to the workpiece and not for numerous starts without cutting When the pilot arc is started a slight impulse will be felt in the torch handle This occurrence is normal and is th...

Страница 15: ... piece is too thick cutting current is too low torch parts are worn out non genuine Manufacturerʼs parts Interruption of the cutting arc cutting speed too slow excessive distance between torch and work piece Input Voltage too low reduce output current torch parts are worn out non genuine Manufacturerʼs parts poor work cable connection disconnected Excessive slag dross too low cutting speed bottom ...

Страница 16: ...t Do not touch electrically hot parts ROUTINE MAINTENANCE 1 Keep the cutting or gouging area and the area around the machine clean and free of combustible materials No debris should be allowed to collect which could obstruct air flow to the machine 2 Every 3 4 months or so the machine should be cleaned with a low pressure airstream Keeping the machine clean will result in cooler operation and high...

Страница 17: ... for the compressed air and fitted with a manual drain for condensation Drain is located on the bottom of the filter Purge periodical ly to remove the water in the filter by opening the drain knob Do not use solvents to clean the filter use soapy water only POWERTORCH PLASMA 20 ...

Страница 18: ... symptom Step 3 RECOMMENDED COURSE OF ACTION This column provides a course of action for the Possible Cause generally it states to contact you local Authorized Field Service Facility If you do not understand or are unable to perform the Recommended Course of Action safely contact you local Authorized Field Service Facility HOW TO USE TROUBLESHOOTING GUIDE Service and Repair should only be performe...

Страница 19: ...Reset Breaker 1 Make sure the unit has not been operated beyond duty cycle limits 2 Air Flow obstructed 1 Air not connected or pressure too low Check source for at least 72 5 PSI 5 Bar during purge or pre flow adjust air pressure to 65 PSI 4 5 Bar 2 Air filter or air line blocked torch blocked Replace filter cartridge Check that air line and torch leads are free of twists and kinks 1 Shield cup no...

Страница 20: ...urate for all machines covered by this manual The specific diagram for a particular code is pasted inside the machine on one of the enclosure panels If the diagram is illegible write to the Service Department for a replacement Give the equipment code number 5 INVERTER BOARD DISPLAY BOARD CONTROL BOARD ...

Страница 21: ...NOTES POWERTORCH PLASMA 20 ...

Страница 22: ...electrically live parts or electrode with skin or wet clothing Insulate yourself from work and ground No toque las partes o los electrodos bajo carga con la piel o ropa moja da Aislese del trabajo y de la tierra Ne laissez ni la peau ni des vête ments mouillés entrer en contact avec des pièces sous tension Isolez vous du travail et de la terre Berühren Sie keine stromführenden Teile oder Elektrode...

Страница 23: ...gute Be und Entlüftung des Arbeitsplatzes Mantenha seu rosto da fumaça Use ventilação e exhaustão para remover fumo da zona respiratória Turn power off before servicing Desconectar el cable de ali mentación de poder de la máquina antes de iniciar cualquier servicio Débranchez le courant avant l entre tien Strom vor Wartungsarbeiten abschalten Netzstrom völlig öff nen Maschine anhalten Não opere co...

Страница 24: ...Gainesville GA 30504 6000 U S A TEL 866 236 0044 FAX 800 840 8684 ...

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