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IM790
March, 2005
SP- 175 Plus
For use with machine Code Numbers 10976
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
Co
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i i SAFETY WARNING CALIFORNIA PROPOSITION 65 WARNINGS Diesel engine exhaust and some of its constituents The engine exhaust from this product contains are known to the State of California to cause can- chemicals known to the State of California to cause cer, birth defects, and other reproductive harm. cancer, birth defects, or other reproductive harm. The Above For Diesel Engines The Above For Gasoline Engines ARC WELDING CAN BE HAZARDOUS. PROTECT YOURSELF AND OTHERS FROM POSSIBLE SERIOUS INJURY
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ii ii SAFETY ELECTRIC SHOCK can ARC RAYS can burn. 4.a. Use a shield with the proper filter and cover kill. plates to protect your eyes from sparks and 3.a. The electrode and work (or ground) circuits the rays of the arc when welding or observing are electrically “hot” when the welder is on. open arc welding. Headshield and filter lens Do not touch these “hot” parts with your bare should conform to ANSI Z87. I standards. skin or wet clothing. Wear dry, hole-free gloves to insulate hands. 4.b. Us
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iii iii SAFETY WELDING SPARKS can CYLINDER may explode cause fire or explosion. if damaged. 6.a. Remove fire hazards from the welding area. 7.a.Use only compressed gas cylinders If this is not possible, cover them to prevent containing the correct shielding gas for the the welding sparks from starting a fire. process used and properly operating Remember that welding sparks and hot regulators designed for the gas and materials from welding can easily go through small cracks pressure used. All hos
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iv iv SAFETY PRÉCAUTIONS DE SÛRETÉ 6. Eloigner les matériaux inflammables ou les recouvrir afin de prévenir tout risque d’incendie dû aux étincelles. Pour votre propre protection lire et observer toutes les instructions et les précautions de sûreté specifiques qui parraissent dans ce 7. Quand on ne soude pas, poser la pince à une endroit isolé de manuel aussi bien que les précautions de sûreté générales suiv- la masse. Un court-circuit accidental peut provoquer un antes: échauffement et un risqu
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v v for selecting a QUALITY product by Lincoln Electric. We want you to take pride in operating this Lincoln Electric Company product Thank You ��� as much pride as we have in bringing this product to you! Please Examine Carton and Equipment For Damage Immediately When this equipment is shipped, title passes to the purchaser upon receipt by the carrier. Consequently, Claims for material damaged in shipment must be made by the purchaser against the transportation company at the time the shipment
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vi vi TABLE OF CONTENTS Page Installation .......................................................................................................Section A Technical Specifications ........................................................................................A-1 Identify and Locate Components...........................................................................A-2 Select Suitable Location ........................................................................................A-3 Ou
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A-1 A-1 INSTALLATION TECHNICAL SPECIFICATIONS – SP-175 Plus INPUT – SINGLE PHASE ONLY Standard Voltage/Frequency Input Current 230V/60Hz 21 Amps @ Rated Output 208V/60Hz 23 Amps @ Rated Output RATED OUTPUT Duty Cycle Current Voltage 30% Duty Cycle @ 230V/60Hz 130 Amps 20 V 25% Duty Cycle @ 208V/60Hz 130 Amps 20 V OUTPUT Welding Current Range Maximum Open Circuit Voltage Wire Speed Range Rated DC Output: 30 – 175 amps 33 50-400IPM (1.3-10.2m/min) RECOMMENDED INPUT CABLE AND FUSE SIZES Fuse or Ou
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WELDING AMP RANGE 25-125 SP-175 Plus A-2 A-2 INSTALLATION FIGURE A.1 Read entire installation section before starting installation. 1 SAFETY PRECAUTIONS 2 WARNING ELECTRIC SHOCK can kill. � Only qualified personnel should perform this installation. � Only personnel that have read and under- stood the SP-175 Plus Operating Manual should install and operate this equipment. � Machine must be plugged into a receptacle which is grounded per any national, local or other applicable electrical
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A-3 A-3 INSTALLATION Work Clamp Installation SELECT SUITABLE LOCATION Attach the work clamp per the following: Locate the welder in a dry location where there is free circulation of clean air into the louvers in the back and 1. Unplug the machine or turn the power switch to the left side and out the front of the unit. A location that “OFF” position. minimizes the amount of smoke and dirt drawn into the louvers reduces the chance of dirt accumulation 2. Insert the work cable terminal lug with the
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A-4 A-4 INSTALLATION The leads are to be routed under the Wire Feed 4. For GMAW Only: Refer to Figure A.2. As deliv- Gearbox (6) and through the Cable Hanger (7) on the ered, the SP-175 Plus is wired for positive polarity. inner panel. This is the appropriate configuration for the Gas Metal Arc Welding (GMAW) process. To complete 3. Insert the connector on the gun conductor cable installation, use the provided wing nut to connect through the Gun Cable Access Hole (2) in the SP- the work cable’s
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A-5 A-5 INSTALLATION 3. Attach the flow regulator to the cylinder valve and WARNING tighten the union nut securely with a wrench. The flow regulator for carbon dioxide must have a plas- � Keep cylinder away from welding tic washer seated in the fitting that attaches to the or other live electrical circuits. cylinder to prevent leakage. BUILDUP OF SHIELDING GAS may harm health or kill. 4. Refer to Figure A.6. Attach one end of inlet gas hose to the outlet fitting of the flow regulator and � Shut
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A-6 A-6 INSTALLATION Line Cord Connection ELECTRICAL INPUT CONNECTION FOR RATED OUTPUT A 3 conductor line cord with a 50 amp, 250 volt, three- prong plug (NEMA Type 6-50P) is factory installed. Connect this plug to a mating grounded receptacle WARNING which is connected to an appropriate power supply per the U.S. National Electric Code and any applicable ELECTRIC SHOCK can kill. local codes. � Disconnect input power by removing plug from receptacle before working Grounding inside SP-175 Plus. Ty
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B-1 B-1 OPERATION Read entire Operation section before operating the SP-175 Plus. WARNING ELECTRIC SHOCK can kill. � Do not touch electrically live parts or electrode with skin or wet clothing. Insulate yourself from work and ground. � Always wear dry insulating gloves. FUMES AND GASES can be dangerous. � Keep your head out of fumes. � Use ventilation or exhaust to remove fumes from breathing zone. WELDING SPARKS can cause fire or explosion. � Keep flammable material away. � Do not weld on close
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B-2 B-2 OPERATION ● Reversible, dual groove drive roll. Drive roll will feed GENERAL DESCRIPTION .023-.035” (0.6- 0.9 mm) diameter wire. The SP-175 Plus is a complete semiautomatic constant volt- ● Accommodates both 8” (200 mm) diameter and 4” (100 age DC arc welding machine. Included is a continuous con- mm) diameter spools of wire. trolled, single phase constant voltage transformer/rectifier ● No external shielding gas is required when used with power source and a wire feeder with welding gun
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B-3 B-3 OPERATION WELDING OPERATIONS SEQUENCE OF OPERATION 1 1 2 Wire Loading WELDING AMP RANGE Refer to Figure B.2 and B.3. 25-125 The machine power switch should be turned to the 3 OFF (“O”) position before working inside the wire feed enclosure. SP-175 Plus The machine is shipped from the factory ready to feed 8” (200 mm) diameter spools [2.2” (56 mm) max. width]. These spools fit on a 2” (50 mm) diameter spindle that has a built-in adjustable friction brake to prevent overrun of th
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B-4 B-4 OPERATION FIGURE B.3 FIGURE B.4 Wire Spindle Shaft 4" Wire Spool 2 1 Wing Nut and Spacer 4 5 To wire drive 3 The Wire Drive Feed Roll can accommodate two wire sizes by flipping the wire drive feed roll Note: The brake should be adjusted with a spool of over. The sizes are stenciled on wire installed. When properly adjusted it should the drive roll. move freely but not coast. 6. The idle roll pressure adjustment wing nut is nor- mally set for mid-position on the pressure arm Friction Bra
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B-5 B-5 OPERATION FIGURE B.5 FIGURE B.6 Gun Handle Contact Tip Gas Diffuser/ Contact Tip Wire Electrode 3/8" – 1/2" Contact Tip to Gas Nozzle Work Distance (CTWD) Shielding Gas When using the GMAW process, a cylinder of shield- ing gas, must be obtained. Refer to the ACCES- SORIES section for more information about selecting 4. Check that the polarity is correct for the welding gas cylinders for use with the SP-175 Plus. Be sure wire being used and that the gas supply, if to observe all cylinder
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B-6 B-6 OPERATION 9. To stop welding, release the gun trigger and then CAUTION pull the gun away from the work after the arc goes It is important when changing between welding out. with steel wire and aluminum to exchange feeding components due to the lubricant applied to steel 10. When no more welding is to be done, close valve wire. Failure to do so may result in contaminated on gas cylinder (if used), momentarily operate gun welds when welding aluminum. trigger to release gas pressure, and tu
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B-7 B-7 OPERATION OVERLOAD PROTECTION Output Overload The SP-175 Plus is equipped with a circuit breaker which protects the machine from potential damage from excessive output current. The circuit breaker but- ton will extend out when tripped. The circuit breaker must be manually reset. Thermal Protection The SP-175 Plus duty cycle is exceeded a thermostat will shut off the output until the machine cools to a nor- mal operating temperature. This is an automatic func- tion and is self resetting.
