MAINTENANCE | ||
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GENERATOR/WELDER MAINTENANCE
STORAGE: Store the BULLDOG™ 5500 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 hold- er 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
•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
2
3
16
45
1.BRUSH, BRUSH HOLDER ASSEMBLY
2.BEARING BRACKET END COVER
3.STATOR END BRACKET
4.(2) SCREWS
5.(2) BRUSHES
6.CABLE TIE
bULLDOG™ 5500
