TM 9-4940-568-34
1-5
1-12. ELECTRICAL SYSTEM.
The electrical power for the FRS unit is provided by a 35KW Generator Set (1). The electrical system is composed of
a 24VDC system and 120/208 AC system. The 24VDC system provides electrical current for the crane (2),
domelights (3), heater (4) and portable flashlights (5). Electrical power for the 24VDC system is provided by two 12
volt series connected batteries (6). The alternator (7) on the engine of the generator set maintains battery charging and
equipment operation. Manual resetting circuit breakers are used for the different systems. Circuit breakers are
located in the 24VDC control panel (8) inside shelter of the FRS.
The 120/208 VAC system provides power for the welder (9), air compressor (10), 110 receptacles (11), reel lights (12)
and fixed lighting system (13). Electrical power for the 120/208 VAC system is provided by the 35KW generator set
which is powered by a 239 cubic inch (3.9L) diesel engine. Circuit breakers for the 120/208 system are located in
main panel (14) inside shelter of the FRS.
10
1
2
11
5
9
13
14
3
4
12
8
7
6
13
