TM 5-3805-261-23-1
THEORY OF OPERATION - CONTINUED
0003 00
ELECTRICAL SYSTEM - CONTINUED
0003 00
6.
Hour Meter. Meter is mounted at a instrument panel in right-front vertical section of engine hood assembly. It registers
engine hours and is used to determine service intervals. Electrically driven by an oil pressure actuated switch.
7.
Sending Units.
HOUR METER
397-020
SENDING UNIT
LOCATION
Right side brake circuit air pressure
Brake pedal treadle valve
for EMS panel
Left side brake circuit air pressure for
Brake pedal treadle valve
EMS panel
Stoplight switch
Brake pedal treadle valve
Blackout stoplight switch
Brake pedal treadle valve
BLACKOUT
RIGHT AIR
STOPLIGHT
PRESSURE FOR
SWITCH
EMS PANEL
STOPLIGHT
SWITCH
LEFT AIR
PRESSURE FOR
EMS PANEL
397-021
0003 00-11
