Hobart Welding Products AirForce 375 Owner'S Manual Download Page 28 | Manualshive

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OM-2210 Page 24

SECTION 7 – PARTS LIST

Figure 7-1. Main Assembly

.

Hardware is common and
not available unless listed.

ST-801 412-H

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Summary of Contents for AirForce 375

Page 1: ...And Non CE Models AirForce 375 Processes Description Air Plasma Cutting and Gouging Air Plasma Cutter OM 2210 176 876N March 2001 ...

Page 2: ...e made installation and operation quick and easy With Hobart you can count on years of reliable service with proper maintenance And if for some reason the unit needs repair there s a Troubleshooting section that will help you figure out what the problem is The parts list will then help you to decide which exact part you may need to fix the problem Warranty and service information for your particul...

Page 3: ...cifications For Units Connected to a 30 Ampere 115 Volt Circuit or a 15 Ampere 230 Volt Circuit 11 3 3 Specifications For CE Model 11 3 4 Duty Cycle And Overheating For Non CE Model 12 3 5 Duty Cycle And Overheating For CE Model 12 3 6 Selecting A Location 13 3 7 Connecting Work Clamp And Gas Air Supply 14 3 8 Setting Input Voltage Selector Switch And Connecting Input Power 15 3 9 Installing Alter...

Page 4: ... 93 68 EEC Standards Electromagnetic compatibility EMC Product standard for arc welding equipment EN50199 August 1995 Safety Requirements for Arc Welding Equipment part 1 EN 60974 1 1989 Arc Welding Equipment Part 1 Welding Power Sources IEC 974 1 April 1995 Draft revision Degrees of Protection provided by Enclosures IP code IEC 529 1989 Manufacturer s Name Miller Electric Mfg Co Manufacturer s Ad...

Page 5: ...r or matches from your person before doing any cutting Touching live electrical parts can cause fatal shocks or severe burns The torch and work circuit are electrically live whenever the output is on The input power circuit and machine internal circuits are also live when power is on Plasma arc cutting requires higher voltages than welding to start and maintain the arc 200 to 400 volts dc are comm...

Page 6: ...Be sure the breathing air is safe D Do not cut in locations near degreasing cleaning or spraying oper ations The heat and rays of the arc can react with vapors to form highly toxic and irritating gases D Do not cut on coated metals such as galvanized lead or cadmium plated steel unless the coating is removed from the cutting area the area is well ventilated and if necessary while wearing an air su...

Page 7: ... not overload building wiring be sure power supply system is properly sized rated and protected to handle this unit STATIC ESD can damage PC boards D Put on grounded wrist strap BEFORE handling boards or parts D Use proper static proof bags and boxes to store move or ship PC boards H F RADIATION can cause interference D High frequency H F can interfere with radio navigation safety services compute...

Page 8: ... 10018 Cutting And Welding Processes NFPA Standard 51B from National Fire Protection Association Batterymarch Park Quincy MA 02269 1 5 EMF Information Considerations About Welding Or Cutting And The Effects Of Low Frequency Electric And Magnetic Fields Welding or cutting current as it flows through the welding or cutting cables will cause electromagnetic fields There has been and still is some con...

Page 9: ...nts qui ont déjà reçu des combustibles D Portez des vêtements de protection exempts d huile tels que des gants en cuir une veste résistante des pantalons sans revers des bottes et un casque D Ne placez pas le poste sur une surface combustible ou au dessus de celle ci D Avant le coupage retirez tout combustible de vos poches par exemple un briquet au butane ou des allumettes Le fait de toucher à un...

Page 10: ...aterial Safety Data Sheets MSDS et les instructions du fabricant pour obtenir plus de renseignements sur les métaux à couper les enrobages et les nettoyants D Travaillez dans un espace restreint uniquement s il est bien ventilé ou si vous portez un respirateur anti vapeurs Les vapeurs causées par le cou page et l épuisement de l oxygène peuvent altérer la qualité de l air et entraîner des blessure...

Page 11: ...érences avec les équipements de ra dio navigation et de communication les services de sécurité et les ordinateurs D Demander seulement à des personnes qualifiées familiarisées avec des équipements électroniques de faire fonctionner l installation D L utilisateur est tenu de faire corriger rapidement par un électricien qualifié les interférences résultant de l installation D Si le FCC signale des i...

Page 12: ... toujours en cours et les preuves continuent à être examinées En attendant que les conclusions finales de la recherche soient établies il vous serait sou haitable de réduire votre exposition aux champs électromagnétiques pendant le soudage ou le coupage Afin de réduire les champs électromagnétiques dans l environnement de travail respecter les consignes suivantes 1 Garder les câbles ensembles en l...

Page 13: ...l 3 1 Wear dry insulating gloves Do not wear wet or damaged gloves 3 2 Protect yourself from electric shock by insulating yourself from work and ground 3 3 Disconnect input plug or power before working on machine 4 Breathing cutting fumes can be hazardous to your health 4 1 Keep your head out of the fumes 4 2 Use forced ventilation or local exhaust to remove the fumes 4 3 Use ventilating fan to re...

Page 14: ...23 50 Hz 1 I1max 34A U1 115V I1max 17A U1 230V I1eff 20 5A I1eff 10 2A 1 2 3 Symbols And Definitions A Amperes Plasma Arc Cutting PAC Adjust Air Gas Pressure Low Air Pressure Light V Volts Increase No Do Not Do This Temperature Protective Earth Ground Single Phase Constant Current Voltage Input On Off Percent Direct Current U0 Rated No Load Voltage Average U1 Primary Voltage U2 Conventional Load V...

Page 15: ...ngle Phase Plasma Rated Cutting Rated Output 115 V 230 V 115 V KVA KW 230 V KVA KW Plasma Gas Gas Flow Pressure Capacity at 10 IPM Max OCV 27 A at 91 Volts DC At 35 Duty Cycle 33 6 max 19 9 eff 16 8 max 9 9 eff 3 8 KVA 3 1 KW 3 8 KVA 3 1 KW 115 VAC 21 A at 88 Volts DC At 60 Duty Cycle 25 3 max 19 6 eff 12 6 max 9 8 eff 2 9 KVA 2 2 KW 2 9 KVA 2 2 KW Air Or Nitrogen Only 4 5 CFM 129 L min At 60 PSI ...

Page 16: ...cted to a 20 Ampere 115 Volt Circuit or a 10 Ampere 230 Volt Circuit For Units Connected to a 30 Ampere 115 Volt Circuit or a 15 Ampere 230 Volt Circuit 35 Duty Cycle At 21 Amperes 88 volts dc 0 15 Minutes A OR Reduce Duty Cycle 3 5 Duty Cycle And Overheating For CE Model Duty Cycle is percentage of 10 min utes that unit can cut at rated load without overheating If unit overheats thermostat s open...

Page 17: ...to determine input power needs 4 115 Or 230 VAC Receptacle Locate unit near correct input power supply Y Special installation may be required where gasoline or volatile liquids are present see NEC Article 511 or CEC Section 20 6 3 4 in 171 mm 17 in 432 mm Movement Y Do not move or operate unit where it could tip Location And Airflow 3 Dimensions And Weight 42 lb 19 1 kg 10 in 254 mm 10 in 254 mm 2...

Page 18: ... Use only clean dry air with 70 to 150 psi 483 to 1034 kPa pressure 3 Air Filter Regulator 4 Gas Air Inlet Opening 5 Hose 6 Teflon Tape Obtain hose with 1 4 NPT right hand thread fitting Wrap threads with teflon tape optional or apply pipe sealant and install fitting in opening Route hose to gas air supply Adjust gas air pressure according to Section 4 1 Tools Needed 5 8 1 1 8 in From Gas Air Supp...

Page 19: ...481 A 115V 230V 2 1 3 4 If input voltage selector switch is set to a different voltage when unit is plugged in and turned on the unit will go into a protective shutdown mode To re cover normal unit operation from this condition proceed as follows S Place Power Switch in OFF position S Unplug input power cord S Place input voltage selector switch in correct position S Wait 60 seconds before reconne...

Page 20: ...d more adequate power see Section 3 8 2 Trouble Lights See Section 5 2 3 Ready Light Use light to tell if unit is ready for operation Ready light comes on when Power switch is placed in On position indicating that all safe ty shutdown systems are okay If Ready light does not come on check Trouble Lights 4 Power Light 5 Power Switch Setting Gas Air Pressure 6 Air Filter Regulator 7 Pressure Adjustm...

Page 21: ...ng speed capabilities of the power source and torch for mild steel of various thickness Cut at speeds below the lines shown to avoid poor cuts and torch wear 179 507 Recommended production cutting speed vs material thickness is approximately10 imp at 5 16 in mild steel thickness at max setting ...

Page 22: ...8 B Turn On Power Source Put On Personal Safety Equipment The pilot arc starts immediately when trigger is pressed Place torch tip on edge of metal Do not clean torch by hitting it against a hard surface Hitting hard surfaces can damage torch parts and stop proper opera tion Inspect shield cup tip and electrode for wear before cutting or whenever cutting speed has been significantly reduced see to...

Page 23: ...ften during severe conditions Each Use Check Gas Air Pressure Check Torch Tip Electrode And Shield Cup Every Week Check Shield Cup Shutdown System 3 Months Replace Damaged Or Unreadable Labels Service Air Filter Regulator Replace Cracked Parts Gas Air Hose Torch Body Cable Tape Torn Outer Covering 6 Months Blow Out Or Vacuum Inside ...

Page 24: ... shutdown is activated Check shield cup shutdown system once a week 3 Temperature Light Lights if power source overheats see Section 3 5 4 Torch Shield Cup Turn Power On and loosen shield cup If shutdown system works properly Ready light goes off and Cup light comes on If not turn pow er Off and check for proper gas air pressure see Section 4 1 blocked or leaking hose or loose shield cup see torch...

Page 25: ...nto gas valve 5 Plug PLG18 6 Safety Control Board PC2 7 Receptacle RC18 Connect PLG18 to RC18 Route leads along existing lead bundle 8 Female Friction Terminals 9 Male Friction Terminal 10 Power Control Board PC1 11 Receptacle RC4 Connect female terminals to leads 23 and 24 from RC4 connect to either lead Connect male terminal to lead 25 from RC4 Route leads as shown Work Cable Connections 12 Stra...

Page 26: ...CR6 safety control board PC2 input resistor R2 power control board PC1 Check for proper torch lead connections Check opera tion of gas valve GS1 and check gas air system for leaks No control of output Check position of input voltage selector switch S2 see Section 3 8 Have Factory Authorized Service Agent check power control board PC1 and safety control board PC2 No gas air flow Power light on Read...

Page 27: ...OM 2210 Page 23 SECTION 6 ELECTRICAL DIAGRAM Figure 6 1 Circuit Diagram For Power Source 189 005 B ...

Page 28: ...OM 2210 Page 24 SECTION 7 PARTS LIST Figure 7 1 Main Assembly Hardware is common and not available unless listed ST 801 412 H ...

Page 29: ...g of 1 16 177 346 TUBING pneumatic 250 OD x 170 ID x 13 500 1 17 176 122 FITTING plstc Qdisc straight 1 8NPT x 1 4 OD 1 18 S3 174 670 SWITCH pressure air 40PSI fixed 1 19 602 965 FITTING pipe brs tee 1 8NPT 1 20 073 655 FITTING pipe brs nipple hex 1 8NPT 1 21 GS1 175 827 VALVE 24VAC 3 way 1 8NPT 5 32 orf 100PSI 1 22 157 057 BRACKET valve 1 23 175 998 FITTING pipe brs adaptor 1 8NPT 375 24 LH 1 24 ...

Page 30: ...mer 1 42 188 116 INSULATOR toroid 1 43 PC2 192 790 CIRCUIT CARD ASSEMBLY safety control 1 PLG11 169 240 CONNECTOR SOCKETS 1 44 S1 124 511 SWITCH toggle DPST 40A 600VAC 1 181 708 GASKET switch 1 PLG20 22 167 640 CONNECTOR SOCKETS 2 45 CR6 149 823 RELAY encl 12VDC SPST 1 46 R2 178 587 RESISTOR WW fxd 5W 10 ohm 1 47 174 991 KNOB pointer 1 48 121 276 BUSHING strain relief 1 When ordering a component o...

Page 31: ...obart s 5 3 1 Limited Warranty shall not apply to 1 Consumable components such as contact tips cutting nozzles slip rings drive rolls gas diffusers plasma torch tips and electrodes weld cables and tongs and tips or parts that fail due to normal wear 2 Items furnished by Hobart Miller but manufactured by others such as engines or trade accessories These items are covered by the manufacturer s warra...

Page 32: ...r To locate a Distributor retail or service location Call 1 877 Hobart1 or visit our website at www HobartWelders com Contact your Distributor for Welding Supplies and Consumables Options and Accessories Personal Safety Equipment Service and Repair Replacement Parts Training Schools Videos Books Technical Manuals Servicing Information and Parts Circuit Diagrams Welding Process Handbooks Contact th...

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