THEORY OF OPERATION Continued
ENGINE STARTING SYSTEM Continued
The DC battery system provides 24 Vdc for engine starting and TQG control circuits. The four sealed 12 Vdc batteries are
charged by the engine alternator. The DC AMMETER on EMCP indicates alternator charging rate. Battery condition is
also shown on the EMCP lower display ENGINE METER function. Charge rate is shown from 25 amperes to +50
amperes in 5 ampere increments. Normal operating indication depends on the state of charge in the batteries. A low
charge such as exists immediately after engine starting, will cause a high reading. The battery system includes a manually
operated Battery Disconnect Switch to isolate the batteries from the engine. The Battery Disconnect Switch can be used to
remove DC power from the TQG. Battery condition is also shown on the EMCP lower display ENGINE METER function.
The batteries connect directly to the 24 Vdc NATO slave receptacle.