Lincoln Electric IM10005 manual GENERATOR/WELDER Maintenance, Screws Brushes

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D-4

MAINTENANCE

D-4

 

 

 

GENERATOR/WELDER MAINTENANCE

STORAGE: Store the BULLDOG™ 140 in clean, dry, protected areas.

CLEANING: Blow out the generator and controls periodically with low pressure air. Do this at least once a week in particularly dirty areas.

BRUSH REMOVAL AND REPLACEMENT: See Figure D.6. It’s normal for the brushes and slip rings to wear and darken slightly. Inspect the brushes when a general overhaul is necessary. Remove the brushes and clean the slip rings with fine grit emery paper.

CAUTION

Do not attempt to polish slip rings while engine is running.

To reinstall the brushes (Item 5), press them upward and slide a cable tie (Item 6) through the brush holder tabs as shown in figure D.6. Install the brush holder (Item 1) into the bearing end bracket (Item 3) and secure with the screws (Item 4) previously removed. Remove the cable tie and the brushes will seat onto the slip rings and replace bearing bracket end cover (Item 2).

RECEPTACLES: Keep the electrical receptacles in good condition. Remove any dirt, oil, or other debris from their surfaces and holes.

CABLE CONNECTIONS: Check the welding cable connections at the weld output terminals often. Be sure that the connections are always tight.

NOTE: Lincoln offers a rotor removal kit for any ser- vice which requires removal of the rotor from the engine. See the ACCESSORIES section for further details.

Removal of engine/generator assembly from the cradle can be achieved as follows:

•Remove the two 5/16-18 hex head cap screws from the engine block via the access hole located in the cradle cross support channel. Leave all other engine mountings intact.

•Remove the two hex nuts from the isolator thread- ed posts at the stator support bracket located opposite the engine. Leave all other stator mount- ings intact.

•With a jib hoist or crane, lift the unit upward and remove loose cradle from engine/generator assembly.

FIGURE D.6. – BRUSH REMOVAL AND REPLACEMENT

1

3

 

6

2

 

4 5

1.BRUSH, BRUSH HOLDER ASSEMBLY

2.BEARING BRACKET END COVER

3.ENGINE END BRACKET

4.(2) SCREWS

5.(2) BRUSHES

6.CABLE TIE

BULLDOG™ 140

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Contents Bulldog California Proposition 65 Warnings SafetyElectric Shock can kill Iii Welding and Cutting Sparks can Cause fire or explosionSûreté Pour Soudage a L’Arc Précautions DE SûretéOn-Line Product Registration Please Examine Carton and Equipment For Damage ImmediatelyTable of Contents Technical Specifications Bulldog 140 K2708-1 InstallationEngine Exhaust can kill Safety PrecautionsLocation and Ventilation StoringLifting PRE-OPERATION Engine ServiceStacking TiltingTable A.1 Recommended Welding Cable Size and Length Electrical Output ConnectionsWelding Cable Connections Machine Grounding 5INSTALLATIONA-5Auxiliary Power Receptacles Electrical ConnectionsCircuit Breakers Premises WiringType Common Electrical Devices Possible Concerns Table A.2 Electrical Device USE with the BulldogOperation Output Panel Controls LimitationsWELDER/GENERATOR Controls Gasoline Engine Controls Engine OperationStarting the Engine Before Starting the EngineGenerator Operation Table B.1 Generator Power Applications Control Function / Operation Current Control Dial Welding OperationWelding Guidelines Material Thickness Electrode Type Size SettingWelding circuit for Stick shielded metal arc welding What Happens in the Arc?Correct Welding Speed Correct Welding PositionCorrect Way to Strike An Arc Correct Arc LengthTypes of Welds PracticeCommon Metals Welding in the Vertical Position Fillet JointsPenetration Multiple Pass WeldsVertical-Down Welding Vertical-Up WeldingHardfacing To Reduce Wear How to Hardface the Sharp Edge Metal to Ground WearOverhead Welding Welding Sheet MetalCast Iron Plate Preparation Welding Cast IronLow Hydrogen Group AWS E7018 Selecting ElectrodesOut-of-Position Group AWS E6011 High-Speed Group AWS E6013 Lincoln Electric Accessories AccessoriesOPTIONS/ACCESSORIES Engine Maintenance MaintenanceRoutine and Periodic Maintenance Finger Guard Area Engine AdjustmentsOperational Clearance Table D.1 Engine Maintenance PartsSpark Plug Service Screws Brushes GENERATOR/WELDER MaintenanceFigure D.7. Major Component Locations HOW to USE Troubleshooting Guide TroubleshootingContact your local Lincoln Authorized Field Service Facility SymptomsTroubleshooting Engine requires service to head, head gasket, and/or valves Diagrams M22146 Dimension PrintBulldog Precaucion Guards off
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