Cleaning, Inspection and Repair.
Clean all parts in a well-ventilated
area. Avoid inhalation of solvent
fumes and prolonged exposure of
skin to cleaning solvent. Wash
cleaning solvent (Fed. Spec. P-D-680
and P-S-661) used to clean parts is
potentially dangerous to personnel
and property. Do not use near open
flame or excessive heat. Flash point
of solvent is 100°-F(38°C).
Clean items with cleaning solvent, Fed.
Spec. P-D-680 or P-S-661, and dry
Inspect the fuel lines and filter for
deterioration. Replace all damaged or
Installation. Refer to figure 4-52 and install
the fuel filter and lines.
Three-Way Valve and Heater Fuel Valve
Removal (All Serial Numbers except
MA68-0001 thru MA68-2987.
Remove the fuel hose and fuel lines,
Remove the threeway valve, heater
fuel valve and brackets, figure 4-53.