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RETURN TO MAIN MENU
IM10006
PLASMA 20
January, 2009
11578
For use with machines having Code Number:
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
MANUAL AND THE SAFETY
PRECAUTIONS CONTAINED
THROUGHOUT. And, most
importantly, think before you act
and be careful.
OPERATOR'S MANUAL
Copyright © Lincoln Global Inc.
• World's Leader in Welding and Cutting Products •
• 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
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Summary of Contents for Lincoln Electric PLASMA 20
- Page 1 RETURN TO MAIN MENU IM10006 PLASMA 20 January, 2009 11578 For use with machines having Code Number: 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 ...
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Page 2: Electric Shock Can Kill
SAFETY WARNING PLASMA CUTTING or GOUGING can be hazardous. 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 purchase a copy of “Safety in Welding &... - Page 3 SAFETY 4.c. When not cutting or gouging, make certain no part of the elec- FOR ELECTRICALLY trode circuit is touching the work or ground. Accidental contact powered equipment. can cause overheating and create a fire hazard. 6.a. Turn off input power using the disconnect 4.d.
- Page 4 NOTES...
- Page 5 SAFETY 5. Toujours porter des lunettes de sécurité dans la zone de PRÉCAUTIONS DE SÛRETÉ soudage. Utiliser des lunettes avec écrans lateraux dans les zones où l’on pique le laitier. Pour votre propre protection lire et observer toutes les instructions et les précautions de sûreté...
- Page 6 Electric for advice or information about their use of our products. We respond to our customers based on the best information in our posses- sion at that time. Lincoln Electric is not in a position to warrant or guarantee such advice, and assumes no liability, with respect to such infor- mation or advice.
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Page 7: Table Of Contents
TABLE OF CONTENTS Page Installation........................Section A Technical Specifications .......................A-1 Safety Precautions .......................A-2 Select Proper Location ......................A-2 Stacking..........................A-2 Tilting ............................A-2 High Frequency Interference Protection................A-2 Input Electrical Connections ....................A-2 Compressed Air or Gas Input Connections ................A-3 Connections to Ground Cable ....................A-3 Torch Connections .......................A-3 ________________________________________________________________________________ Operation.........................Section B Safety Precautions .......................B-1... -
Page 8: Installation
INSTALLATION TECHNICAL SPECIFICATIONS - PLASMA 20 INPUT - SINGLE PHASE Standard Voltage 1Ø Input Current at Rated Output 115/1/50/60Hz (15 Amp Branch) 115 V: 20A @ 50% 115 V: 26A @ 40% 115/1/50/60Hz (20 Amp Branch with 20 Amp Plug*) -
Page 9: Safety Precautions
MA 20 or possibly even damage to the control system other applicable electrical codes. or power supply components. • The PLASMA 20 power switch is to be in the OFF (“O”) position when installing work cable and INPUT ELECTRICAL CONNECTIONS gun and when connecting power cord to input power. -
Page 10: Compressed Air Or Gas Input Connections
A source of clean, dry air or nitrogen must be supplied where it could be damaged. to the PLASMA 20. Oil in the air is a severe problem and must be avoided. The supply pressure must be • Never lift machine with cylinder attached. -
Page 11: Operation
• Insulate yourself from work and ground. The PLASMA 20 utilizes a 3 second delay after press- ing the trigger before arc initiation to ensure that the • Always wear dry insulating operator is ready. The unit will not function if consum- gloves. -
Page 12: User Responsibility
CUTTING CAPABILITY 4. Red LED – Turns ON when torch is triggered The PLASMA 20 is rated for 20A @ 40% duty cycle. Blinks quickly during 3 second safety pre-flow The unit is designed to cut up to 3/8” inch mild steel,... -
Page 13: Cutting Operations
Installation” section of this manual. • COMPRESSED AIR TORCH PARTS The PLASMA 20 requires compressed air to be attached to the unit. The input air pressure mini- Check the torch for proper assembly. Install proper mum must be 72.5 PSI, 5 Bar and must not exceed torch parts for the desired application (refer to the 150 PSI, 10.3 Bar. - Page 14 Troubleshooting Section. • Use a 5° - 15° leading angle in the direction of the cut. • Use the proper cutting procedures referred to in • Finish the cut to be made and release the trigger. Procedure Recommendations. PLASMA 20...
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Page 15: Pilot Arc Discussion
PILOT ARC DISCUSSION FIGURE B.2 SHEILD CUP The PLASMA 20 has a smooth, continuous pilot arc. The pilot arc is only a means of transferring the arc to the work- NOZZLE piece for cutting. Repeated pilot arc starts, in rapid succes-... -
Page 16: Maintenance
SAFETY • Timely and appropriate maintenance on torch parts CONDITIONS. If repairs cannot be made on site is essential for safety and proper functionality of the contact a local field service shop. cutting system. PLASMA 20... -
Page 17: Compressed Air Filter
(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. PLASMA 20... -
Page 18: Troubleshooting
HOW TO USE TROUBLESHOOTING GUIDE WARNING Service and Repair should only be performed by Lincoln Electric Factory Trained Personnel. Unauthorized repairs performed on this equipment may result in danger to the technician and machine operator and will invalidate your factory warranty. For your safety and to avoid Electrical Shock, please observe all safety notes and precautions detailed throughout this manual. - Page 19 3. Faulty Main PC Board. Repair/Replace. CAUTION 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. PLASMA 20...
- Page 20 DIAGRAMS PLASMA 20...
- Page 21 NOTES PLASMA 20...
- Page 22 ● ● ● Do not touch electrically live parts or Keep flammable materials away. Wear eye, ear and body protection. WARNING electrode with skin or wet clothing. ● Insulate yourself from work and ground. Spanish ● ● ● No toque las partes o los electrodos Mantenga el material combustible Protéjase los ojos, los oídos y el AVISO DE...
- Page 23 ● ● ● Keep your head out of fumes. Turn power off before servicing. Do not operate with panel open or ● WARNING Use ventilation or exhaust to guards off. remove fumes from breathing zone. Spanish ● Los humos fuera de la zona de res- ●...
- Page 24 • World's Leader in Welding and Cutting Products • • 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...