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Models 5E, 5F, 5G & 5H Electric Switch Machines: Single ... - Alstom

Models 5E, 5F, 5G & 5H Electric Switch Machines: Single ... - Alstom

Models 5E, 5F, 5G & 5H Electric Switch Machines: Single ... - Alstom

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Scheduled Maintenance4.10. SEMI-ANNUAL MAINTENANCE4.10.1. Commutator InspectionTable 4–25. Commutator Inspection ProcedureStepAction1 Disconnect the switch machine power by removing the 110 VDC fuses andheater fuse. Locate the fuses by using the Book of Plans.2 Inspect commutator area that contacts the brushes.3 If area is not black or dark brown-colored and highly polished, check forproper grade of brush and possible external contaminants.4 If external contamination is causing commutator to roughen and gall, tryremoving motor's ventilation and refinishing the commutator. Replace wrongbrush with proper grade of brush.5 Keep commutator smooth and free of grease or oil.6 Remove any carbon dust around commutator end of armature in undercuts.7 Reconnect energy to motor.P1293, Rev. Jun/07 4–48 <strong>Alstom</strong> Signaling Inc.

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