Figure 1-15. Instrument System -726280052

TM 9-2320-364-20-1

1-12. ELECTRICAL SYSTEM (CONT).

STEERING WHEEL

SHOWN REMOVED

FOR CLARITY

Figure 1-15. Instrument System

f. Instruments. The instrument system (Figure 1-15) includes all gages that give the operator information. The

speedometer (1) receives signals from a sending unit mounted on the transfer case. Tachometer (2) input is provided

from the DDEC controller. The fuel gage (3), oil pressure gage (4), water temperature gage (5) and transmission oil

temperature gage (6) all receive electrical signals from sending units. These sending units monitor fluid level, pressure

and temperature and send this information to the gages.

g. Warning Lights and Buzzers. The warning lights (7) and buzzers (8) in the cab are activated by sensors

located in different systems. These include low air pressure, low engine oil pressure, low hydraulic oil level and high

water temperature. When one or more of these sensors are activated, they energize the proper light and/or buzzer,

informing the operator of a problem.

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