1-17. HEATER FUEL SYSTEM PRINCIPLES OF OPERATION.
Fuel is supplied to the burner from a five gallon (18.9 liter) fuel can.
from the combustion air fan provides a positive pressure in the fuel can. A
coarse filter is located on the inlet hose assembly to remove the larger par-
ticles from from the fuel.
The fuel then passes to the fine filter to remove the
From the engine driven fuel pump, fuel is forced through a
magnetic valve and check valve to the burner fuel jet.
Unused fuel is by-
passed back to the fuel can.
Heater Fuel System.