Instruction/ maintenance manual of the product SA-250 Lincoln Electric
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S A-250 OPERA TOR’S MANUAL For Machines with Code Numbers 10890 IM747 January, 2003 Safety Depends on You Lincoln arc welding equipment is designed and built with safety in mind. However, your overall safety can be increased by proper installation .
FOR ENGINE powered equipment. 1.a. Turn the engine off before troubleshooting and maintenance work unless the maintenance work requires it to be running. ____________________________________________________ 1.b. Operate engines in open, well-ventilated areas or vent the engine exhaust fumes outdoors.
ii SAFETY ii ARC RA YS can burn. 4.a. Use a shield with the proper filter and cover plates to protect your eyes from sparks and the rays of the arc when welding or observing open arc welding. Headshield and filter lens should conform to ANSI Z87. I standards.
FOR ELECTRICALL Y powered equipment. 8.a. Turn off input power using the disconnect switch at the fuse box before working on the equipment. 8.b. Install equipment in accordance with the U.S. National Electrical Code, all local codes and the manufacturer’s recommendations.
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.
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.
vi vi T ABLE OF CONTENTS Page ________________________________________________________________________ Installation .......................................................................................................Section A Technical Specifications .
A-1 INST ALLA TION SA-250 A-1 Make/Model Description Horsepower Operating Displacement cu. in.(ltrs) Starting Capacities @ 1800RPM S PEED System 1. Output rating in watts is equivalent to volt-amperes at unity power factor. Output voltage is within ± 10% at all loads up to rated capacity.
A-2 INST ALLA TION SA-250 A-2 PRE-OPERA TION INST ALLA TION EXHAUST SP ARK ARRESTER Some federal, state or local laws may require that engines be equipped with exhaust spark arresters when they are operated in certain locations where unarrested sparks may present a fire hazard.
PRE-OPERA TION SER VICE READ the engine operating and maintenance instruc- tions supplied with this machine. OIL This unit is supplied from the factory with the engine crankcase filled with a high quality SAE 10W/30 oil. This oil should be acceptable for most typical ambient temperatures.
A-4 INST ALLA TION SA-250 A-4 Battery Charging The SA-250 is equipped with a wet charged battery. The charging current is automatically regulated when the battery is low (after starting the engine) to a trickle current when the battery is fully charged.
B-1 OPERA TION B-1 SAFETY PRECAUTIONS GENERAL DESCRIPTION The SA-250 is a heavy duty, engine driven, DC arc welding power source, capable of providing constant current output for stick welding or DC TIG welding. This welder is wound with all copper coils, rated at 300 amps/32 Volts.
B-2 OPERA TION B-2 ENGINE OPERA TION Operate the welder with the doors closed. Leaving the doors open changes the designed air flow and can cause overheating. STARTING the SA-250 PERKINS 104-22 DIESEL ENGINE 1. Turn the “IDLER” switch to “HIGH”.
B-3 OPERA TION B-3 SA-250 WELDER OPERA TION DUTY CYCLE The NEMA output rating of the SA-250 is 300 amperes at 32 arc volts on a 60% duty cycle (consult Specifications in this manual for alternate ratings). Duty cycle is based on a ten minute period; thus, the welder can be loaded at rated output for six minutes out of every ten minute period.
B-4 OPERA TION B-4 SA-250 AUXILIARY POWER The AC auxiliary power, supplied as a standard, has a rating of 3.0 kVA of 115/230 VAC (60 hertz). With the 3.0 kVA, 115/230 VAC auxiliary power, one 115V duplex and one 230V duplex, grounding type receptacle are provided.
C-1 ACCESSORIES C-1 SA-250 OPTIONAL FEA TURES (Field Installed) Accessory Set (K704) - Includes electrode and work cables, headshield, work clamp and electrode holder. TIG Module (K930-2) - Portable, high frequency unit with gas valve for TIG welding.
D-1 MAINTENANCE D-1 MAINTENANCE GENERAL INSTRUCTIONS • Blow out the welder and controls with an air hose at least once every two months. In particularly dirty locations, this cleaning may be necessary once a week. Use low pressure air to avoid driving dirt into the insulation.
D-2 MAINTENANCE D-2 Lincoln brushes have a curved face to fit the commu- tator. Have an experienced maintenance man seat these brushes by lightly stoning the commutator as the armature rotates at full speed until contact is made across the full face of the brushes.
D-3 D-3 SA-250 MAINTENANCE I EVERY 400 HOURS OR 12 MONTHS EVERY 200 HOURS OR 6 MONTHS EVERY 100 HOURS OR 3 MONTHS FIRST SERVICE-(20 / 50 HOURS) EVERY DAY OR EVERY 8 HOURS If necessary use shorter periods. These preventive maintenance periods apply to average conditions of operation.
E-1 TROUBLESHOOTING E-1 SA-250 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.
E-2 WELDER TROUBLESHOOTING E-2 SA 250 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 your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
E-3 ENGINE TROUBLESHOOTING E-3 SA 250 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 your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
E-4 ENGINE TROUBLESHOOTING E-4 SA-250 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 your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
E-5 TROUBLESHOOTING SA-250 E-5 ELECTRONIC IDLER TROUBLESHOOTING GUIDE With Idler Control Switch in the Auto Position, Engine Will Not Return to Low Idle in Approximately 15 Seconds After Welding and A.
E-6 TROUBLESHOOTING SA-250 E-6 ELECTRONIC IDLER TROUBLESHOOTING GUIDE With Idler Control Switch in the AUTO Position, Engine Will Not Pick Up Speed When: The Arc is Struck Reed Switch in Weld Circuit Defective -- Will Not Close To Check: Short the Red Lead on P.
F-1 DIAGRAMS F-1 SA-250 M20016 C + - + - R W B SLIP RINGS 346 A 54 3 2 1 CB3 CB1 115 VOLT RECEPTACLE 230 VOLT RECEPTACLE WELDER LEAD BL OCK AC AC 42 602A U CB2 CB4 1 2 3 4 5 6 600A 41 GENERAT O R N -W 48 START + 52 + IDLER SOLENOI D - P9 J8 POSIT IVE 400D 400E - 51 56 RHEOSTAT EXC ALTERNATOR + PUMP SOLENOID 50 50B (CC+) & (CV+ W ITH W.
F-2 DIMENSION PRINT F-2 SA-250 M8869-24 A 28.00 22.00 22.14 24.50 27.12 25.00 31.75 51.50 6.00 32.82 42.63 43.13 48.50 53.75 61.00 65.25 67.00 8.12 3.00 .88 16.30 33.75 N.B. N.A. N.A. N.A. N.B. N.C. NOTES: N.A. .81 HOLES N.B. .69 HOLES N.C. CENTER OF GRAVITY WI TH OIL AND COOLANT IN ENGI NE, BUT NOT F UEL.
NOTES SA-250.
NOTES SA-250.
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W ARNING A VISO DE PRECAUCION A TTENTION W ARNUNG A TEN ÇÃ O Spanish French German Portuguese Japanese Chinese Korean Arabic READ AND UNDERST AND THE MANUF ACTURER’S INSTRUCTION FOR THIS EQUIPMENT AND THE CONSUMABLES TO BE USED AND FOLLOW YOUR EMPLOYER’S SAFETY PRACTICES.
W ARNING A VISO DE PRECAUCION A TTENTION W ARNUNG A TEN ÇÃ O Spanish French German Portuguese Japanese Chinese Korean Arabic LEIA E COMPREENDA AS INSTRUÇÕES DO F ABRICANTE PARA ESTE EQUIP AMENTO E AS PAR TES DE USO, E SIGA AS PRÁTICAS DE SEGURANÇA DO EMPREGADOR.
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An important point after buying a device Lincoln Electric SA-250 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Lincoln Electric SA-250 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Lincoln Electric SA-250 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Lincoln Electric SA-250 you will learn all the available features of the product, as well as information on its operation. The information that you get Lincoln Electric SA-250 will certainly help you make a decision on the purchase.
If you already are a holder of Lincoln Electric SA-250, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Lincoln Electric SA-250.
However, one of the most important roles played by the user manual is to help in solving problems with Lincoln Electric SA-250. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Lincoln Electric SA-250 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
