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; iii
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
vi TABLE OF CONTENTS Page Installation .......................................................................................................................Section A Technical Specifications .......................................................................................................A-1S...
Page 8 - vii
vii TABLE OF CONTENTS Page Maintenance ....................................................................................................Section D Safety Precautions ................................................................................................D-1Input Filter Capacitor Discharge ...
Page 9 - INSTALLATION
A-1 INSTALLATION A-1 Weight Including Machine Torch Cable (Length) (25ft/7.6m) (50ft/15.2m) 70 lbs. 85 lbs. 32 kg. 39 kg. INPUT - SINGLE or THREE PHASE / 60 HERTZ ONLY RATED OUTPUT OUTPUT RECOMMEND INPUT WIRE AND FUSE SIZES REQUIRED GAS FLOW RATE REQUIRED GAS INLET PRESSURE PHYSICAL DIMENSIONS TECHN...
Page 10 - SAFETY PRECAUTIONS; Do not touch electrically hot parts.; SELECT PROPER LOCATION; STACKING; 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 Read entire Installation Section before installing thePRO-CUT 55. SAFETY PRECAUTIONS 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 fuse box and discharge input...
Page 11 - a. The Pro-Cut 55 should be connected only by a; ONLY; while the Pro-Cut is disconnected from the; FRAME GROUNDING
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. a. The Pro-Cut 55 should be connected only by a qualif...
Page 12 - GAS INPUT CONNECTIONS; CYLINDER; OUTPUT CONNECTIONS; Torch Connection
A-4 INSTALLATION PRO-CUT 55 A-4 GAS INPUT CONNECTIONS Supply the PRO-CUT 55 with clean compressed air ornitrogen. • S u p p l y p r e s s u r e m u s t b e b e t w e e n 8 0 p s i and 150 psi. • F l o w r a t e s h o u l d b e a p p r o x i m a t e l y 6 . 0 cfm (170 I/min.). NOTE: Oil in the air su...
Page 13 - OPERATION
B-1 OPERATION PRO-CUT 55 B-1 Read and understand this entire section before oper-ating the machine. SAFETY PRECAUTIONS DESCRIPTION The Pro-Cut 55 is a constant current, continuous con-trol plasma cutting power source. It provides superiorand reliable starting characteristics, cutting visibilityand a...
Page 14 - 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 15 - 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 or 40 amps, at 100% duty cycle.If the duty cycle is exceeded, a thermal protector will shut off the output of the machine until it cools to the normaloperating temperature. Figure B.1 show...
Page 16 - LIMITATIONS
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 17 - 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 18 - 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 20 - ACCESSORIES; NOZZLES
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. • The patented VORTECH ™ nozzle provides an extra “ kick ” of swirl as the arc exits the nozzle ...
Page 21 - 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 22 - 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 23 - TROUBLESHOOTING; CAUTION; Step 3. R E C O M M E N D E D C O U R S E O F; HOW TO USE TROUBLESHOOTING GUIDE
E-1 TROUBLESHOOTING E-1 PRO-CUT 55 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 Guid...
Page 24 - 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 27 - 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 28 - 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 CHECK 1. There...
Page 29 - DIAGRAMS
F-1 DIAGRAMS F-1 PRO-CUT 55 WIRING DIAGRAM PRO-CUT 55 FOR CODES 10473, 10474 ELECTRICAL SYMBOLS PER E1537 12 34 13 4 6 1 4 8 5 CONNECTOR CAVITY NUMBERING SEQUENCE (VIEWED FROM COMPONENT SIDE OF BOARD) NOTES: COLOR CODE: R = RED 1 7 8 14 FOR THREE PHASE INPUT: CONNECT GREEN LEAD TO GROUND PER NATIONA...
Page 30 - WIRING DIAGRAM PRO-CUT 55 FOR CODES 10475, 10476
F-2 DIAGRAMS F-2 PRO-CUT 55 310 ELEC ELEC xxxxxxx CONTROL S4 PRIMARY LEFT SIDE OF MACHINE A 360 365 J33 J31 S2 RESET J5,J22 15 14 217 216 J30 223 J4,J10, S3 PSI_SET J1,J20, J33 54 B U R S1 V W R POWER W 53 8 12V N 56 H1 R N 51 2 24V 203A 206 C1 1200/450 POWER 4 1 5 2 6 3 503 T3 277A 221 400- 460VAC ...
Page 31 - DIMENSION PRINT PR
F-3 DIAGRAMS F-3 PRO-CUT 55 12.60 11.00 25.94 19.50 2.95 DIMENSION PRINT PR O-CUT 55 10-31-97D M18806 OFFO F F XXXXX X X X XXXXX X X X XXXXX X X X XXXXX X X X PRO-CUT 55
Page 33 - 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...
