background image

RED-D-ARC
EX350i

IM678-A

March, 2002

Red-D-Arc Spec-Built Welding Equipment

This 

RED-D-ARC

welder is built to 

RED-D-ARC Extreme Duty

design specifications by Lincoln Electric.

Safety Depends on You

This welder 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, 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. 

For use with machines having Code Numbers:

10666; 10749

North America’s Largest Fleet of Welding Equipment

1-800-245-3660

OPERATOR’S MANUAL

Summary of Contents for EX350i

Page 1: ...fety in mind However your overall safety can be increased by proper installation and thoughtful operation on your part DO NOT INSTALL OPERATE OR REPAIR THIS EQUIPMENT WITHOUT READING THIS MANUAL AND T...

Page 2: ...KER 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...

Page 3: ...ctrical earth ground 3 f Maintain the electrode holder work clamp welding cable and welding machine in good safe operating condition Replace damaged insulation 3 g Never dip the electrode in water for...

Page 4: ...prevent the welding sparks from starting a fire Remember that welding sparks and hot materials from welding can easily go through small cracks and openings to adjacent areas Avoid welding near hydraul...

Page 5: ...ns appropri s et non inflammables 4 Des gouttes de laitier en fusion sont mises de l arc de soudage Se prot ger avec des v tements de protection libres de l huile tels que les gants en cuir chemise pa...

Page 6: ...followed to avoid minor personal injury or damage to this equipment CAUTION Please Examine Carton and Equipment For Damage Immediately When this equipment is shipped title passes to the purchaser upon...

Page 7: ...Cycle B 1 Operational Features and Controls B 1 Thru B 3 Remote Control of the Output Control and Weld Terminals B 3 Design Features and Advantages B 4 Auxiliary Power B 5 Limitations B 5 Recommended...

Page 8: ...61 76m 200 250 FT 100 275 1 0 1 0 60 350 1 0 2 0 EX350i INPUT CURRENT Note 2 When operating on these inputs the line cord should be changed to an input conductor of 6 AWG or larger Recommended Fuse Si...

Page 9: ...t ut y nibh euismod tincidun t ut laoreet dolore magna aliquam er laoreet dolore magna aliquam erat at Lorem ipsum dolor sit amet consect etuer adipisci ng Lorem ipsum dolor sit amet consect etuer ad...

Page 10: ...ire feeder amphenol con nector on the rear of the EX350i Cobramatic Connection Instructions Turn the EX350i power switch off Connect the control cable from the Cobramatic to the 24 42 VAC 14 pin wire...

Page 11: ...The arc control pots should be kept identical on the two machines QUICK DISCONNECT PLUGS A quick disconnect system is used for the welding cable connections The welding plug included with the machine...

Page 12: ...t adjustment while in the hold period results in the prior to operation char acteristics stated above The displays blink indicat ing that the machine is in the Hold period 2 VOLT METER Prior to CV ope...

Page 13: ...intended for most SMAW applications and Arc Gouging Arc Gouging Setting the output of the Stick Soft mode to 425 amps will enable the arc gouging mode The actual output current will depend on the size...

Page 14: ...results in a crisp arc High pinch settings are preferable for welding FCAW and GMAW with CO2 CV FLUX CORED The CV FLUX CORED mode fea tures continuous control from 10 to 45 volts This mode was design...

Page 15: ...6 will set the EX350i to mini mum output for the mode that has been selected while 10 volts supplied to 76 will set the EX350i to the maximum output for the mode Note In TIG mode 10 volts supplied to...

Page 16: ...AC supply is rated at 5 5 amps and is protected by a 6 amp breaker located by the amphenol 24 VAC supply is rated at 5 5 amps and is protected by a 6 amp breaker located by the amphenol LIMITATIONS Th...

Page 17: ...t Control K814 Arc Start Switch K812 Hand Operated Amptrol K870 Foot Operated Amptrol K930 1 TIG Module K428 K446 K449 LN 25 K617 1 or 2 K618 1 or 2 LN 742 K440 1 K567 1 LN 7 GMA K1559 1 K1564 1 LN 10...

Page 18: ...Thermostats protect the machine from excessive operating temperatures Excessive temperatures may be caused by a lack of cooling air or operating the machine beyond the duty cycle and output rating If...

Page 19: ...ed POSSIBLE CAUSE lists the obvious external possibilities that may contribute to the machine symptom Step 3 RECOMMENDED COURSE OF ACTION This column provides a course of action for the Possible Cause...

Page 20: ...2 Welding procedure is drawing too much output current or duty cycle is too high Reduce output cur rent duty cycle or both 3 There is internal damage to the power source Contact an autho rized Lincoln...

Page 21: ...ON Thermal symbol is lit Wire feeder won t work Apparently no power to wire feeder 1 Check for proper fan operation 2 Check for material blocking intake or exhaust louvers 1 Check circuit breakers by...

Page 22: ...ver Check the machine Self clearing as current fault interrupt possibly ground condition ceases caused by noise or a signal level If problem persists misc hardware fault 1 contact an authorized Lincol...

Page 23: ...ial three second period are displayed for 1 sec ond each Weld mode is changing A constant voltage weld mode is selected machine output is off The numeric value in the right display is the work point A...

Page 24: ...A I G H T P L U G 1 4 P I N T O P O W E R S O U R C E C A B L E R E C E P T A C L E 6 S O C K E T C A B L E R E C E P T A C L E 1 4 S O C K E T T O 1 L N 7 W I R E F E E D E R S T O 1 K 8 5 7 R E M O...

Page 25: ...TRIC SHOCK CAN KILL I N V E R T E C W I T H 1 1 5 V A C S 1 9 4 0 4 K867 PLUG TO LN 7 CONNECTION DIAGRAM N A W E L D I N G C A B L E M U S T B E S I Z E D F O R C U R R E N T A N D D U T Y C Y C L E O...

Page 26: ...C A B L E E F D A B C 7 7 7 6 7 5 S P A R E 4 2 2 1 8 2 8 1 4 2 4 1 G N D 3 1 3 2 N D N D R E M O V E 6 P I N P L U G F R O M K 4 3 2 C A B L E I N O R D E R T O C O N N E C T K 8 6 7 P L U G L A B E...

Page 27: ...5 A M P 1 1 5 V A C 2 A M P I N V E R T E C F R A M E C O N N E C T I O N N D N D F O R W I R E F E E D E R S T H A T R E T U R N A S I G N A L F O R W E L D I N G O U T P U T U S E I S O L A T I O N...

Page 28: ...C Y C L E O F A P P L I C A T I O N N B D I A G R A M S H O W S E L E C T R O D E P O S I T I V E T O C H A N G E P O L A R I T Y T U R N P O W E R O F F R E V E R S E E L E C T R O D E A N D W O R K...

Page 29: ...I T Y T U R N P O W E R O F F R E V E R S E E L E C T R O D E A N D W O R K C A B L E A T P O W E R S O U R C E E L E C T R O D E C A B L E T O L N 7 T O W O R K 1 4 P I N A M P H E N O L L N 7 C O N...

Page 30: ...575V 550 460V 440 230V 220 380 415V 208V 200 7 2 3 8 9 4 6 1 5 10 11 12 13 14 15 16 609 602 612 607 901 90 3 804 903 7 2 3 8 9 4 6 1 10 5 2 2 3 4 1 5 7 8 9 10 2 3 1 6 5 4 7 8 802 806 801 Y YELLOW W WH...

Page 31: ...EX350i 14 79 12 44 3 44 21 60 27 82 5 50 10 00 MOUNTING HOLE LOCATIONS M19527 13 1 0 1 4 20 NUT 4 PLACES NOTE MOUNTING SCREWS CA 8 00 N NOT PROTR UDE MORE THAN 0 5 INCHES INSIDE THE MACHINE 11 84 3 50...

Page 32: ...EX350i NOTES...

Page 33: ...electrically live parts or electrode with skin or wet clothing Insulate yourself from work and ground No toque las partes o los electrodos bajo carga con la piel o ropa moja da Aislese del trabajo y...

Page 34: ...e Be und Entl ftung des Arbeitsplatzes Mantenha seu rosto da fuma a Use ventila o e exhaust o para remover fumo da zona respirat ria Turn power off before servicing Desconectar el cable de ali mentaci...

Page 35: ...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 World s Leader in Welding and Cutting Pr...

Reviews: