Lincoln Electric PRO-CUTTM 25 IM665 manual

PRO-CUT TM 25 OPERA TOR’S MANUAL IM665 September, 2004 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 thought- ful operation on your part. DO NOT INSTALL, OPERATE OR REPAIR THIS EQUIPMENT WITHOUT READING THIS MA[...]

PROTECT YOURSELF AND OTHERS FROM POSSIBLE SERIOUS INJURY OR DEATH. KEEP CHILDREN AWAY. PACEMAKER WEARERS SHOULD CONSULT WITH THEIR DOCTOR BEFORE OPERATING. Read and understand the following safety highlights. For additional safety information it is strongly recommended that you pur- chase a copy of “Safety in Welding & Cutting - ANSI Standard[...]

PRO-CUT 25 FOR ELECTRICALL Y powered equipment. 6.a. Turn off input power using the disconnect switch at the fuse box before working on the equipment. 6.b. Install equipment in accordance with the U.S. National Electrical Code, all local codes and the manufacturer’s rec- ommendations. 6.c. Ground the equipment in accordance with the U.S. National[...]

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iv SAFETY iv PRÉCAUTIONS DE SÛRETÉ Pour votre propre protection lire et observer toutes les instructions et les précautions de sûreté specifiques qui parraissent dans ce manuel aussi bien que les précautions de sûreté générales suiv- antes: Sûreté Pour Soudage A L’Arc 1. Protegez-vous contre la secousse électrique: a. Les circuits ?[...]

Thank You 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! Read this Operators Manual completely before attempting to use this equipment. Save this manual and keep it handy for quick reference. Pay par[...]

T ABLE OF CONTENTS Page Installation ................................................................................................................... ....Section A Technical Specifications .......................................................................................................A-1 Safety Precautions ................................[...]

A-1 INST ALLA TION A-1 W eight Including T orch Cable 35 lbs. 15.9 kg. INPUT - SINGLE PHASE / 60 HERTZ ONL Y RA TED OUTPUT OUTPUT RECOMMEND INPUT WIRE AND FUSE SIZES REQUIRED GAS FLOW RA TE REQUIRED GAS INLET PRESSURE PHYSICAL DIMENSIONS TECHNICAL SPECIFICA TIONS - PRO-CUT 25 (K1756-1) Standard V oltage Duty Cycle 20% on 1 15 V 60% on 1 15 V 100% o[...]

A-2 INST ALLA TION PRO-CUT 25 A-2 Read entire Installation Section before installing the PRO-CUT 25. SAFETY PRECAUTIONS ELECTRIC SHOCK CAN KILL. • Only qualified personnel should install this machine. • Turn the input power OFF at the disconnect switch or fuse box and discharge input capacitors before working inside the equipment. • Do not to[...]

A-3 INST ALLA TION PRO-CUT 25 A-3 • Failure to wire as instructed may cause personal injury or damage to equipment. • To be installed or checked by an electrician or qualified person only. ------------------------------------------------------------------------ Use of normal 20 amp household breakers may result in over current trips. If breaker[...]

A-4 INST ALLA TION PRO-CUT 25 A-4 NOTE: When using nitrogen gas from a cylinder, the cylinder must have a pressure regulator. • Maximum psi from a nitrogen gas cylinder to the PRO-CUT 25 regulator should never exceed 150 psi. • Install a hose between the nitrogen gas cylinder regulator and the PRO-CUT 25 gas inlet . CYLINDER could explode if da[...]

B-1 OPERA TION PRO-CUT 25 B-1 SAFETY PRECAUTIONS DESCRIPTION The PRO-CUT 25 is a constant current, continuous control plasma cutting power source. It provides supe- rior and reliable starting characteristics, cutting visibili- ty and arc stability. The control system has a safety mechanism to insure that the nozzle and electrode are in place before[...]

B-2 OPERA TION B-2 USER RESPONSIBILITY Because design, fabrication, erection and cutting vari- ables affect the results obtained in applying this type of information, the serviceability of a product or struc- ture is the responsibility of the user. Variation such as plate chemistry, plate surface condition (oil, scale), plate thickness, preheat, qu[...]

B-3 OPERA TION B-3 CUTTING CAP ABILITY The PRO-CUT 25 is rated at 25 amps, at 35% duty cycle on a 10 minute basis. If the duty cycle is exceeded, a thermal protector will shut off the output of the machine until it cools to the normal operating temperature. Figure B.1 shows the cut capacity of the PRO-CUT 25 when cutting mild steel. (The graph plot[...]

LIMIT A TIONS Do not exceed output current and duty cycle rating of machine. Do not use the PRO-CUT 25 for pipe thaw- ing. CONTROLS AND SETTINGS When preparing to cut, position the machine as close to the work as possible. Make sure you have all materials needed to complete the job and have taken all safety precautions. It is important to follow th[...]

Direction of Travel 5 ° - 15 ° 10 ° - 20 ° Arc Lag Leading Angle B-5 OPERA TION B-5 • Use a 5 ° - 15 ° leading angle in the direction of the cut. • Finish the cut to be made and release the trigger. • When the trigger is released, the arc will stop. - The gas will continue to flow for 10 seconds of postflow. If the trigger is activated [...]

B-6 OPERA TION B-6 PROCEDURE RECOMMENDA TIONS When properly used, plasma arc cutting is a very eco- nomical process. Improper use will result in a very high operating cost. General - In All Cases • Follow safety precautions as printed throughout this operating manual and on the machine. • If piercing is required, slowly lower the torch at an an[...]

C-1 ACCESSORIES C-1 AL W A YS USE GENUINE LINCOLN ELECTRIC ELECTRODES AND VORTECH ™ NOZZLES • Only Genuine Lincoln Electric consumables yield the best cutting performance for the PRO-CUT 25. • The patented VORTECH ™ nozzle provides an extra “ kick ” of swirl as the arc exits the nozzle which improves cutting performance. No other nozzle[...]

D-1 MAINTENANCE D-1 PRO-CUT 25 PERIODIC MAINTENANCE Change consumables as required. THERMAL PROTECTION Thermal Detection Devices protect the machine from excessive operating temperatures. Excessive temper- atures may be caused by a lack of cooling air or oper- ating the machine beyond the duty cycle and output rating. If excessive operating tempera[...]

E-1 TROUBLESHOOTING E-1 PRO-CUT 25 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. CAUTION This Troubleshooting Guide is provided to help you locate and repair possi[...]

E-2 TROUBLESHOOTING E-2 PRO-CUT 25 Observe all Safety Guidelines detailed throughout this manual 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. CAUTION PROBLEMS (SY[...]

E-3 TROUBLESHOOTING E-3 PRO-CUT 25 Observe all Safety Guidelines detailed throughout this manual 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. CAUTION PROBLEMS (SY[...]

E-4 TROUBLESHOOTING E-4 PRO-CUT 25 Observe all Safety Guidelines detailed throughout this manual 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. CAUTION PROBLEMS (SY[...]

E-5 TROUBLESHOOTING E-5 PRO-CUT 25 Observe all Safety Guidelines detailed throughout this manual 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. CAUTION PROBLEMS (SY[...]

E-6 TROUBLESHOOTING E-6 PRO-CUT 25 Observe all Safety Guidelines detailed throughout this manual ST A TUS BOARD INDICA TORS SYMPTOM The Air Low LED is lit The Safety LED is lit and steady The Thermal LED is lit CHECK 1. Make sure there is at least 80 psi connected to the gas connec- tion at the back of the machine. 2. Press the Purge button and set[...]

F-1 DIAGRAMS F-1 PRO-CUT 25 NOTE: This diagram is for reference only. It may not be accurate 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..[...]

W ARNING A VISO DE PRECAUCION A TTENTION W ARNUNG A TEN ÇÃ O Spanish French German Portuguese Japanese Chinese Korean Arabic READ AND UNDERST AND THE MANUF ACTURER’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 F ABRICANTE P ARA E[...]

W ARNING A VISO DE PRECAUCION A TTENTION W ARNUNG A TEN ÇÃ O Spanish French German Portuguese Japanese Chinese Korean Arabic LEIA E COMPREENDA AS INSTRUÇÕES DO F ABRICANTE P ARA ESTE EQUIPAMENTO E AS P ARTES DE USO, E SIGA AS PRÁTICAS DE SEGURANÇA DO EMPREGADOR. ● Keep your head out of fumes. ● Use ventilation or exhaust to remove fumes f[...]

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