APU LOW OIL PRESSURE SYSTEM (cont) - TM-9-2350-256-20

APU LOW OIL PRESSURE SYSTEM (cont) - TM-9-2350-256-20_248

TM-9-2350-256-20 Carrier Cargo Tracked 6-Ton M548A1 (2350-01-096-9356) M548A3 2350-01-369-6081 Manual
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SECTION V: TROUBLESHOOTING TM 9-2350-256-20 WARNING Remove all jewelry such as rings, dog tags, bracelets, etc. If jewelry contacts a metal surface a direct short may result in instant heating of tools, damage to equipment, and injury or death to personnel. M Reconnect bulkhead to APU, master relay, and rigger's lights wiring harness to bulkhead disconnect. Open center-front air inlet doors (TM 9-2350-256-10). Disconnect bulkhead to APU, master relay, and rigger's lights wiring harness from APU engine disconnect. Place red lead of multimeter on pin B of wire 420A and black lead to ground. Turn MASTER and APU FUEL SHUTOFF switches ON and check for voltage. Turn MASTER and APU FUEL SHUTOFF switches OFF. If voltage is present, notify Direct Support Maintenance. If voltage is not present, repair/replace wire 420A of bulkhead to APU, master relay, and rigger's lights wiring harness (see paragraph 6-75 for dual voltage; 6- 76 for single voltage). 2-181

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