TM-9-2350-247-10 Operator Manual M548A1 M548A3 Tracked Cargo Carrier Download

Page 82 of 640

TM 9-2350-247-10 DESCRIPTION AND USE OF DRIVER’S CONTROLS AND INSTRUMENTS — Continued 0004 00 0004 00-4 Lights up gauges and indicators on instrument panel when panel lights are turned on. INSTRUMENT PANEL LIGHTS Indicates level of fuel in fuel tank. FUEL GAUGE Table 4. DRIVER’S INSTRUMENT PANEL - M548A1 Aids in starting engine when temperature is below 40 F (4.4 C). KEY AIR BOX HEATER SWITCH Guarded switch allows fuel pump to be turned OFF if MASTER SWITCH will be on for a long period of time with the engine not running. FUEL PUMP SWITCH CONTROL OR INDICATOR FUNCTION Two position toggle switch to select IR (infrared) or BO (blackout) mode of lights operation. IR-BO SELECT SWITCH Engages engine starter. START SWITCH