Page 2 - PERFORMED ONLY BY QUALIFIED INDIVIDUALS.; WARNING; PLASMA CUTTING or GOUGING can be hazardous.; SAFETY
PROTECT YOURSELF AND OTHERS FROM POSSIBLE SERIOUS INJURY OR DEATH. KEEP CHILDRENAWAY. 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 “S...
Page 3 - ii
FOR ELECTRICALLYpowered equipment. 6.a. Turn off input power using the disconnectswitch at the fuse box before working on theequipment. 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 a...
Page 4 - NOTES
Page 5 - iv; PRÉCAUTIONS DE SÛRETÉ
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 seco...
Page 6 - Thank You; Please Examine Carton and Equipment For Damage Immediately
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...
Page 7 - TABLE OF CONTENTS; Page
vi vi TABLE OF CONTENTS Page Installation .......................................................................................................Section A Technical Specifications ........................................................................................A-1Safety Precautions..............
Page 9 - INSTALLATION; THREE PHASE; Hz; RECOMMENDED INPUT WIRE AND FUSE SIZES; Weight
A-1 INSTALLATION A-1 RATED OUTPUT OUTPUT RECOMMEND INPUT WIRE AND FUSE SIZES REQUIRED GAS FLOW RATE REQUIRED GAS INLET PRESSURE TECHNICAL SPECIFICATIONS - PRO-CUT 55 Duty Cycle 50% Duty Cycle 100% Duty Cycle Current Range 25-60 Amps Open Circuit Voltage MAX 335 VDC For all plasma cutting application...
Page 10 - SAFETY PRECAUTIONS; Do not touch electrically hot parts.; SELECT PROPER LOCATION; STACKING; cannot; LIFTING AND MOVING; DO NOT; use the pull handle on the optional undercar-; TILTING; (1) Make sure the power supply chassis is connected
A-2 INSTALLATION PRO-CUT 55 A-2 SAFETY PRECAUTIONS Read entire Installation Section before installingthe PRO-CUT 55. ELECTRIC SHOCK CAN KILL. • O n l y q u a l i f i e d p e r s o n n e l should install this machine. • Turn the input power OFF at the disconnect switch or f u s e b o x a n d d i s c ...
Page 11 - CORD INSTALLATION
A-3 INSTALLATION PRO-CUT 55 A-3 INPUT ELECTRICALCONNECTIONS Before installing the machine, check that input supplyvoltage, phase, and frequency are the same as themachine's voltage, phase, and frequency as specifiedon the machine's rating plate. The Pro-Cut 55 should be connected only by a quali-fie...
Page 12 - FRAME GROUNDING; ONLY; USE ON ENGINE DRIVEN POWER SUPPLIES; AC Wave Form Restrictions
A-4 INSTALLATION PRO-CUT 55 A-4 2. If the ground screw assembly is loose, tighten the assembly to the base before installing the newground lead. Install the green lead on the groundscrew assembly, replace the plain washer and lockwasher, then tighten nut. Install in accordance withall local and nati...
Page 13 - GAS INPUT CONNECTIONS; Torch Connection
A-5 INSTALLATION PRO-CUT 55 A-5 GAS INPUT CONNECTIONS Supply the PRO-CUT 55 with clean compressed air ornitrogen. • Supply pressure must be between 80 psi and 150 psi. • Pressure guage, located on the front of the machine, should be set to approximately 70 PSI for a 25 ft.torch and 75 PSI for a 50 f...
Page 14 - OPERATION
B-1 OPERATION PRO-CUT 55 B-1 SAFETY PRECAUTIONS Read and understand this entire section before oper-ating the machine. NOTE: All P.C. boards are protected by a moisture resis-tant coating. When the plasma cutter is operated, this coat-ing will "bake off" of certain power resistors that norma...
Page 15 - USER RESPONSIBILITY
B-2 OPERATION B-2 USER RESPONSIBILITY Because design, fabrication, erection and cutting vari-ables affect the results obtained in applying this typeof information, the serviceability of a product or struc-ture is the responsibility of the user. Variation such asplate chemistry, plate surface conditi...
Page 16 - CUTTING CAPABILITY; Mild Steel Cut Capacity Chart; CONSUMABLE LIFE
B-3 OPERATION B-3 CUTTING CAPABILITY The PRO-CUT 55 is rated at 55 amps, at 50% duty cycle on a 10 minute basis (runs 55 amps for 5 minutes, thenidling for 5 minutes) or 40 amps, at 100% duty cycle (continuous use). If the duty cycle is exceeded, a thermalprotector will shut off the output of the ma...
Page 17 - LIMITATIONS; Tu r n t h e m a i n p o w e r a n d t h e m a c h i n e
B-4 OPERATION B-4 LIMITATIONS Do not exceed output current and duty cycle rating ofmachine. Do not use the PRO-CUT 55 for pipe thaw-ing. CONTROLS AND SETTINGS When preparing to cut or gouge, position the machineas close to the work as possible. Make sure you haveall materials needed to complete the ...
Page 18 - ELECTRIC SHOCK CAN KILL.
B-5 OPERATION B-5 • H o l d t h e n o z z l e s t a n d o f f 1 / 8 ” ( 3 . 2 m m ) t o 3 / 1 6 ” (4.7mm) above the workpiece during cutting. Do notlet the torch nozzle touch the work or carry a longarc. • Keep moving while cutting. Cut at a steady speed without pausing. Maintain the cutting speed s...
Page 19 - PILOT ARC DISCUSSION; General - In All Cases
B-6 OPERATION B-6 PILOT ARC DISCUSSION The PRO-CUT has a smooth, continuous pilot arc.The pilot arc is only a means of transferring the arc tothe workpiece for cutting. Repeated pilot arc starts, inrapid succession, is not recommended as these startswill generally reduce consumable life. Occasionall...
Page 21 - ACCESSORIES; NOZZLES; Note: The shield cup does not prevent the torch tip
C-1 ACCESSORIES C-1 ALWAYS USE GENUINE LINCOLNE L E C T R I C E L E C T R O D E S A N DVORTECH ™ NOZZLES • Only Genuine Lincoln Electric consumables yield the best cutting performance for the PRO-CUT 55. • T h e p a t e n t e d V O R T E C H ™ n o z z l e p r o v i d e s a n extra “ kick ” of swirl ...
Page 22 - MAINTENANCE; ELECTRIC SHOCK; LOCATION OF INPUT FILTER CAPACITOR TERMINALS.
D-1 MAINTENANCE D-1 PRO-CUT 55 INPUT FILTER CAPACITORDISCHARGE PROCEDURE 1. Turn off input power or disconnect input power lines. 2. Remove the 5/16" hex head screws from the side and top of the machine and remove wrap-aroundmachine cover. 3. Be careful not to make contact with the capacitor ter...
Page 23 - ROUTINE MAINTENANCE
D-2 MAINTENANCE D-2 ROUTINE MAINTENANCE 1. Keep the cutting or gouging area and the area around the machine clean and free of combustiblematerials. No debris should be allowed to collectwhich could obstruct air flow to the machine. 2. Every 6 months or so, the machine should be cleaned with a low pr...
Page 24 - TROUBLESHOOTING; CAUTION; Step 3. RECOMMENDED COURSE OF ACTION; HOW TO USE TROUBLESHOOTING GUIDE
E-1 TROUBLESHOOTING E-1 If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact yourLocal Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed. CAUTION This Troubleshooting Guide is provid...
Page 25 - PROBLEMS
E-2 TROUBLESHOOTING E-2 PRO-CUT 55 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 yourLocal Lincoln Authorized Field Service Facility for technical troubleshooting as...
Page 28 - Observe all Safety Guidelines detailed throughout this manual; Check work lead connection for
E-5 TROUBLESHOOTING E-5 PRO-CUT 55 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 yourLocal Lincoln Authorized Field Service Facility for technical troubleshooting as...
Page 29 - STATUS BOARD INDICATORS
E-6 TROUBLESHOOTING E-6 PRO-CUT 55 Observe all Safety Guidelines detailed throughout this manual STATUS BOARD INDICATORS SYMPTOM Machine is unresponsive immediately afterpower-up. The Air Low LED is lit The Safety LED is flashing The Safety LED is lit and steady The Thermal LED is lit The “ Ready ” ...
Page 30 - A. If the Safety LED is LIT AND STEADY, perform the following:
E-7 TROUBLESHOOTING E-7 PRO-CUT 55 Observe all Safety Guidelines detailed throughout this manual CONSUMABLE RELATED SAFETY LED TROUBLESHOOTING A. If the Safety LED is LIT AND STEADY, perform the following: 1. If the reset button (when pressed) does not turn the Safety LED off, the reset button or as...
Page 31 - DIAGRAMS; ram for a particular code is pasted inside
F-1 DIAGRAMS F-1 PRO-CUT 55 NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. The specific diag ram 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 ...
Page 35 - DIMENSION PRINT PR
F-5 DIAGRAMS F-5 PRO-CUT 55 12.60 11.00 25.94 19.50 2.95 DIMENSION PRINT PR O-CUT 55 10-31-97D M18806 OFF OF F X X X X XXXX XX XX X X X X XXXX XX XX PRO-CUT 55
Page 38 - ÇÃ
WARNING AVISO DE PRECAUCION ATTENTION WARNUNG ATEN ÇÃ O Spanish French German Portuguese Japanese Chinese Korean Arabic READ AND UNDERSTAND THE MANUFACTURER’S INSTRUCTION FOR THIS EQUIPMENT AND THE CONSUMABLES TO BEUSED AND FOLLOW YOUR EMPLOYER’S SAFETY PRACTICES. SE RECOMIENDA LEER Y ENTENDER LAS I...
