195 890-A | Hobart Welding Products TM-944C instruction

195 890-A

Figure 8-5. Circuit Diagram For 115 VAC Model Control Board PC1

Effective With Serial No. KK213350 And Following

Handler 135 / 175

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TM-944 Page 39

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Hobart Welding Products TM-944C manual 195 890-A

Contents

Description TM-944CProcesses Table of Contents Servicing Hazards − Safety Precautions for ServicingSymbol Usage EMF Information California Proposition 65 WarningsRadiation can cause interference Overuse can cause Overheating VAC Model − SpecificationsSpecifications Output Duty Cycle And OverheatingDuty Cycle % Output Amperes Volt-Ampere Curves Installing Welding Gun Installing Work Clamp − Installation For Solid Wire Electrode Negative For Flux Core WireProcess/Polarity Table Changing Polarity Installing Gas Supply Grounded Receptacle Rating LabelVolt, 20 ampere individual Up to 200 ft 61 m 18 in 457 mm of space for airflow Do not move or operate unit where it could tip= GND/PE L2 L1 230 VAC Installing Wire Spool And Adjusting Hub Tension Electrical Service Guide For 230 VAC Model230 Reference 1996 National Electrical Code NEC Pressure Indicator Scale Threading Welding WireBe sure that tip matches wire diameter Reinstall contact tip and nozzle Power Switch Voltage Switch− Operation Controls Weld Parameter Chart For 115 VAC Model Wire Speed Also Depends on Other variables Such Stick Out Starting Value only − Wire Speed Setting Can beElectrode Positive For Solid Wire While Weld Parameter Chart For 230 VAC Model Metal Etc Listed Starting Value Only − Wire Speed Setting can be − Theory of Operation Stablizer L1 Block Wire Drive MotorMain Polarity Troubleshooting Table − Troubleshooting Clear blockage in gun GS1 if necessary TM-944 V8/R5 V9/R6 V10 V11/R9 585 030/.035 SolidOr Flux Core 640 Handler 135 Test Equipment Needed 700 510600 Control Board PC1 Testing Information 115 VAC Model Circuit common Control Board PC1 Test Point Values 115 VAC Model Control Board PC1 Testing Information 230 VAC Model Control Board PC1 Test Point Values 230 VAC Model Routine Maintenance − MaintenanceDisconnect power before maintaining Overload Protection Drive Motor Protection Replacing Gun Contact Tip Changing Drive Roll Or Wire Inlet GuideTurn Off power before replacing contact tip To Reassemble Gun Cleaning Or Replacing Gun LinerDisconnect gun from unit Replacing Switch And/Or Head Tube Model Serial Or Style Number Circuit Diagram Wiring Diagram − Electrical Diagrams 194 324-C 194 325-A 196 637-A 196 655-A 195 890-A 195 891-A Handler 135 H-10 Gun 11 10 − Parts List Dia Part Mkgs Description Quantity Optional 195 Optional Drive RollsOptions Hobart Welding Products