TM 9-2350-287-20-112-19. TROUBLESHOOTING CHART (continued).m. BILGE PUMP.The bilge pump is used to evacuate water from the engine compartment, usually after fording. The bilge pumpshould not be operated for more than one minute in a dry compartment or 15 minutes in a flooded compartment,unless the engine is running.The bilge pump system consists of the bilge pump, bilge pump relay, bilge pump circuit breaker, circuit breaker2, and associated wiring.To operate the bilge pump, the MASTER switch must be turned ON. By turning on the MASTER switch, 24vdc is supplied from the batteries through the MASTER relay, to circuit breaker 2. From circuit breaker 2, thevoltage is routed to the bilge pump switch. When the bilge pump switch is turned on, power is supplies throughthe bilge pump circuit breaker to the bilge pump relay. The bilge pump relay sends the power to the bilge pumpand the bilge pump is energized.2-229
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