TM 9-2320-272-24-1
1-22. ELECTRICAL SYSTEMS OPERATION (Contd)
c. Ether Starting System Operation.
The ether starting system is identical for all models covered in this manual and consists of the following
major components and circuitry:
Key Item and Function
1 BATTERY SWITCH - Provides 24-volt battery power to protective control box through circuits 459,
81A, and 81.
2 PROTECTIVE CONTROL BOX - Energizes ether feed switch through circuits 5, 5A, 27, 5C,
and 570.
3 ETHER FEED SWITCH - Controls 24-volt power to ether pressure switch through circuit 570.
4 ETHER PRESSURE SWITCH - Connects ether feed switch to ether tank valve through circuit 570.
5 ETHER TANK VALVE - Is activated through circuit 570 when ether pressure switch is closed and
ether feed switch is pressed.
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