TM 5-3805-281-24-1
Sub-System Diagnostics
TRAVEL ALARM CIRCUIT OPERATIONAL
INFORMATION
The following conditions must be met for the circuit to
function:
Key switch ON
Voltage present at travel alarm 5-amp fuse F10
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TRAVEL ALARM CIRCUIT THEORY OF
OPERATION
9015
15
95
The travel alarm circuit contains: travel alarm fuse F10,
travel alarm H10, travel alarm cancel switch S17, and
propel pressure switch B15. Operating voltage for the
travel alarm is applied from fuse F10 to travel alarm pin B.
When the propel levers are moved to forward or reverse
positions, propel pressure switch B15 senses pilot
pressure and closes. With the switch closed, ground is
applied to pin C of the travel alarm, activating the alarm.
After the travel alarm has sounded for 10 seconds, the
travel alarm cancel switch may be pushed to turn the
alarm off by grounding alarm pin A.
CED,OUOE012,37 1922DEC981/1