TM 9-2320-260-10
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ITEM AND FUNCTION
Primer pressure gage indicates pressure delivered by hand primer pump during
cold weather starting and used when purging fuel system of air.
Preheater indicator lamp lights when preheater switch is placed in ON position.
Preheater switch, when set to START position, sends electrical power to engine
preheater (used for cold weather starting).
Battery switch activates or deactivates all electrical circuits except horns. lights,
manifold heaters, and arctic heaters.
Fuel gage switch (M817 and M818). When in “L” position. fuel gage shows left
tank fuel level. When in “R” position. fuel gage shows right tank fuel level.
Fording valve control handle closes crankcase ventilating system during fording
operations when pulled out. Opens engine crankcase ventilating system during
normal operations when pushed in (kit only).
Air cleaner filter indicator. When engine air cleaner filter needs cleaning. red
band rises and locks to top of indicator window.
Floodlight control switch (M816, M819, and M821), when turned to ON
position, provides electrical power to floodlight switches. When turned to OFF
position. cuts electrical power to floodlight switches.
Brake lock switch (M816) locks vehicle service brakes in hold position.
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