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IM10145
AUTOPRO
20
™
January 2013
11971
For use with machines having Code Number:
Safety Depends on You
Marquette
arc welding and cut-
®
ting equipment is designed and
built with safety in mind. However,
your overall safety can be
increased by proper installation ...
and thoughtful operation on your
part. DO NOT INSTALL, OPER-
ATE OR REPAIR THIS EQUIP-
MENT WITHOUT READING
THIS MANUAL AND THE
SAFETY PRECAUTIONS CON-
TAINED THROUGHOUT. And,
most importantly, think before you
act and be careful.
OPERATORʼS MANUAL
Copyright © Lincoln Global Inc.
2345 Murphy Blvd. Gainesville, GA 30504 TEL: 866-236-0044
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Summary of Contents for Lincoln Electric MARQUETTE AUTOPRO 20
- Page 1 IM10145 AUTOPRO ™ January 2013 11971 For use with machines having Code Number: Safety Depends on You Marquette arc welding and cut- ® ting equipment is designed and built with safety in mind. However, your overall safety can be increased by proper installation ... and thoughtful operation on your part.
- Page 2 THANK YOU FOR SELECTING A QUALITY PRODUCT BY KEEP YOUR HEAD OUT OF THE FUMES. DON’T get too close to the arc. LINCOLN ELEC TRIC. Use corrective lenses if necessary to stay a reasonable distance away from the arc. READ and obey the Safety Data PLEASE EXAMINE CARTON AND EQUIPMENT FOR Sheet (SDS) and the warning label DAMAGE IMMEDIATELY...
- Page 3 W117.2-1974. A Free copy of “Arc Welding Safety” booklet E205 is available from the Lincoln Electric Company, 2.d. All welders should use the following procedures in order to 22801 St. Clair Avenue, Cleveland, Ohio 44117-1199.
- Page 4 SAFETY ELECTRIC SHOCK ARC RAYS CAN BURN. CAN KILL. 3.a. The electrode and work (or ground) circuits are 4.a. Use a shield with the proper filter and cover plates to protect your electrically “hot” when the welder is on. Do eyes from sparks and the rays of the arc when welding or not touch these “hot”...
- Page 5 SAFETY WELDING AND CUTTING CYLINDER MAY EXPLODE IF SPARKS CAN CAUSE DAMAGED. FIRE OR EXPLOSION. 7.a. Use only compressed gas cylinders containing the correct shielding gas for the process used 6.a. Remove fire hazards from the welding area. If and properly operating regulators designed for this is not possible, cover them to prevent the welding sparks the gas and pressure used.
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Page 6: 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 7: Installation
INSTALLATION TECHNICAL SPECIFICATIONS - AUTOPRO™ 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*) RATED OUTPUT Duty Cycle AMPS... -
Page 8: Safety Precautions
INSTALLATION Read entire Installation Section before installing the AUTOPRO™ 20. (1) Make sure the power supply chassis is connected to a good earth ground. The work terminal ground SAFETY PRECAUTIONS does NOT ground the machine frame. (2) Keep the work clamp isolated from other work WARNING clamps that have high frequency. -
Page 9: Compressed Air Or Gas Input Connections
INSTALLATION Use of normal 20 amp household breakers may result WARNING in over current trips. If breaker trips occur, reduce the cutting current output until nuisance trips stop. CYLINDER could explode if dam- COMPRESSED AIR OR GAS INPUT aged. CONNECTION •... -
Page 10: Operation
OPERATION DESCRIPTION SAFETY PRECAUTIONS WARNING The AUTOPRO™ 20 is a constant current, continuous control plasma cutter power source. ELECTRIC SHOCK The AUTOPRO™ 20 comes standard with an air reg- can kill. ulator and pressure gauge. The unit is powered from •... -
Page 11: User Responsibility
OPERATION USER RESPONSIBILITY CONTROLS AND SETTINGS Variation such as plate chemistry, plate 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. -
Page 12: Cutting Operations
OPERATION CUTTING OPERATIONS CHECKING AIR QUALITY To check air quality, deactivate the torch (post-flow) BEFORE CUTTING and place a welding filter lens in front of the torch. Any WARNING oil or moisture in the air will be visible on the lens. DO NOT initiate pilot arc while checking air quality. -
Page 13: Safety Precautions
OPERATION • When ready to cut, place the torch near the work, NOTE: For better torch control, it is acceptable to let make certain all safety precautions have been taken the nozzle drag along the work piece surface. This and pull the trigger. will shorten nozzle life. -
Page 14: Pilot Arc Discussion
OPERATION PILOT ARC DISCUSSION FIGURE B.2 SHEILD CUP The AUTOPRO™ 20 has a smooth, continuous pilot arc. The pilot arc is only a means of transferring the arc to the NOZZLE workpiece for cutting. Repeated pilot arc starts, in rapid GAS DIFFUSER RING succession, is not recommended as these starts will gener- ELECTRODE... -
Page 15: Maintenance
MAINTENANCE PERIODIC MAINTENANCE WARNING WARNING ELECTRIC SHOCK can kill. • Have a qualified person service this ELECTRIC SHOCK CAN KILL. equipment. • Turn off machineand disconnect • Disconnect input power by removing input power by removing the plug plug from receptacle before assem- from the receptacle switch before bling or disassembling torch parts, tightening, cleaning or replacing... -
Page 16: Compressed Air Filter
MAINTENANCE COMPRESSED AIR FILTER The unit is supplied with a filter 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. -
Page 17: 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 18 TROUBLESHOOTING Observe all Safety Guidelines detailed throughout this manual PROBLEMS POSSIBLE RECOMMENDED (SYMPTOMS) CAUSE COURSE OF ACTION GREEN LED OFF, Fan not operat- 1. Plug unit into 115V outlet. ing. No Input Power. 2. Reset Breaker. GREEN LED ON, YELLOW 1. Make sure the unit has not been Overtemperature / under pressure operated beyond duty cycle limits.
- Page 19 DIAGRAMS AUTOPRO™ 20...
- Page 20 NOTES AUTOPRO™ 20...
- Page 21 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 bajo carga con la piel o ropa moja-...
- Page 22 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- Desconectar el cable de ali- No operar con panel abierto o AVISO DE...
- Page 23 Copyright © Lincoln Global Inc. 2345 Murphy Blvd. Gainesville, GA 30504 TEL: 866-236-0044...
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