PERSONNEL HEATER CONTROL SYSTEM (cont)

PERSONNEL HEATER CONTROL SYSTEM (cont) - TM-9-2350-256-20_301

PERSONNEL HEATER CONTROL SYSTEM (cont) - TM-9-2350-256-20_303

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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CHAPTER 2: VEHICLE MAINTENANCE INSTRUCTIONS TM 9-2350-256-20 2-19 ELECTRICAL TROUBLESHOOTING-Continued PERSONNEL HEATER CONTROL SYSTEM-Continued 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. C Place red lead of multimeter on pin A of wire 402 and black lead to ground. Turn MASTER switch on, HEATER CONTROL switch to START, and check for voltage. Place HEATER CONTROL switch in RUN position and check for voltage. Turn MASTER and HEATER CONTROL switches OFF. If voltage is present, go to step D. If voltage is not present, replace HEATER CONTROL box (see paragraph 6-12). D Place red lead of multimeter on pin C of wire 403 and black lead to ground. Turn MASTER switch on, HEATER CONTROL switch to START, and check for voltage. Place heater controls switch in RUN position and check for voltage. Turn MASTER and HEATER CONTROL switches OFF. If voltage is present, go to step E. If voltage is not present, replace HEATER CONTROL box (see paragraph 6- 12). E Place red lead of multimeter on pin C of wire 403 and black lead on pin E of wire 407. Check for continuity. If continuity is present, go to step F. If continuity is not present, replace HEATER CONTROL box (see paragraph 6-12). 2-234

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