TM 5-3805-294-10
OPERATOR MAINTENANCE
OPERATING THE COOLANT HEATER
INITIAL SETUP:
Not Applicable
COOLANT HEATER OPERATION
WARNING
The coolant heater must be switched off while the fuel tank on the machine is being filled.
Failure to comply may result in injury or death to personnel.
DO NOT operate engine or coolant heater in a closed place without proper ventilation.
Failure to comply may result in injury or death to personnel.
CAUTION
If a fault arises during coolant heater operation, the heat symbol will flash on the control panel
display and a three-digit fault code will be displayed. Shut down the coolant heater and notify
field maintenance. Failure to comply may result in damage to equipment.
NOTE
Coolant heater is only required to be used when temperature is -25 F (-32 C) or colder.
The timer can control operation of the coolant heater for up to 7 days in advance.
The default timer setting is for the coolant heater to operate for 120 minutes before
automatically turning off.
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