The straight scoop.Don't be confused about who can repair what on the A-20 personnel heater. Here's the straight scoop: Unit-level maintenance: Limited to replacement of ignitors and removal and replacement of the entire heater. DS/GS-level maintenance: All troubleshooting Troubleshooting is a form of problem solving. It is the systematic search for the source of a problem so that it can be solved. Troubleshooting is often a process of elimination - eliminating potential causes of a problem. and repair with the exception of vent sensor and heat exchanger heat exchanger Any of several devices that transfer heat from a hot to a cold fluid. In many engineering applications, one fluid needs to be heated and another cooled, a requirement economically accomplished by a heat exchanger. replacement, which are a depot-level jobs. Keep in mind that this heater has sensitive electronics on board, mechanics. You must be grounded when working on the heater. Before doing any welding welding, process for joining separate pieces of metal in a continuous metallic bond. Cold-pressure welding is accomplished by the application of high pressure at room temperature; forge welding (forging) is done by means of hammering, with the addition of heat. on the vehicle, all electrical connections An electrical connection between discrete points allows the flow of electrons, (current). A pair of connections is needed for a circuit. Between points with a low voltage difference between them, direct current flow can be controlled by a switch. should be disconnected from the heater. The heater should not be between the grounding area and the welding area. If it is, remove theheater. TM 9-2540-207-14&P covers all heater troubleshooting and repair procedures. |
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