Figure 19. Locations of engine shroud and air control handle.
M2 Water Heater
See that the glass in the gages is unbroken and that the pointers register zero on the water and fuel
pressure gages. See that the water temperature gage indicates the surrounding temperature when the
equipment is not operating. See that the HEATER-ON/PURGE-ON switch is in the PURGE-ON
position. See that the main power cable is not broken and the connector is not missing. Inspect the fuel
hose assembly for completeness and damage. Inspect the fuel lines for cracks or breaks, missing parts,
or other visible damage. Inspect the water hose for cuts or damage. Fill the fuel supply source (5-gallon
can) and connect it to the M2 water heater. If gasoline or JP-4 is being used to power the boiler, pour
number 2 diesel fuel oil (1 pint per 5 gallons of gasoline) into the fuel container. This prevents the fuel
from freezing. When the fuel pump "freezes," the fuel and ignition drive motor stops operating. Use a
screwdriver on the drive arms and free the shaft of the fuel pump. The shaft is free when it will turn by
a flick of the finger on the drive arms. See that the electric motors and drive arms (moving parts) are
free to operate and that no parts are missing.