TM-9-2320-279-10-1
M977 SERIES, 8x8 HEAVY EXPANDED MOBILITY TACTICAL TRUCKS (HEMTT)
OPERATOR’S MANUAL VOLUME 1 OF 2
DECEMBER 1998
CHANGE 5
TM-9-2320-279-10-1 - Page 83 of 773
TM 92320-279-10-1
Controls and Indicators (Cont)
2-2.
LOCATION AND USE OF CONTROLS AND INDICATORS (CONT).
Figure 2- 19.
Arctic Heater
Key
Control or Indicator
Function
1
Coolant Pump Indicator
Lights when coolant pump is operating.
2
ON/OFF Switch
Two way toggle switch that starts coolant
pump and supplies 24 vdc to heater cable
receptacle. Pull up on toggle and push
toggle to right to place switch in ON
position. Pull toggle to left to place switch in
OFF position.
3
Heater Cable Receptacle
Provides 24 vdc to start heater.
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