TM 9-2350-287-20-12-19. TROUBLESHOOTING CHART (continued).u. AUXILIARY POWER UNIT (continued).(1) ENGINE CRANKS BUT FAILS TO START(continued).CONTINUED FROM NO. 1. Place a suitable container under the fuelpumps.2. Disconnect fuel line from the inlet port ofthe second fuel pump.3. With the aid of an assistant turn MAS-TER switch and FUEL SHUT-OFF switchON (refer to TM 9-2350-287-10).4. Observe fuel hose for fuel flow.5. Turn MASTER switch and FUEL SHUT-OFF switch OFF (refer to TM 9-2350-287-10).Does fuel flow out of the fuel pump?Replace second fuel pump (para 4-5). Verifyproblem is solved.P. 1. Connect fuel line to the inlet port of thesecond fuel pump.2. Disconnect fuel line from outlet port of thefirst fuel pump.3. With the aid of an assistant turn MASTERswitch and FUEL SHUT-OFF switch ON(refer to TM 9-2350-287-10).4. Observe fuel hose for fuel flow.5. Turn MASTER switch and FUEL SHUT-OFF switch OFF (refer to TM 9-2350-287-10).Does fuel flow out of the fuel pump?Continued on next page2-301
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