Table 3-2. Troubleshooting (Continued)
TEST OR INSPECTION
5. FUEL PRESSURE TOO LOW OR FUEL PRESSURE PULSATES (WATER HEATER/DRYER).
Fuel is very flammable and can explode easily. To avoid serious injury or death,
keep fuel away from open fire and keep fire extinguisher within easy reach when
working with fuel. Do not work on fuel system when burner is hot. Fuel can be
ignited by hot burner. Shut off engine and do not smoke while refueling.
Check fuel supply in fuel drum.
If fuel supply is low, fill-fuel drum.
If fuel supply is adequate, proceed to next step.
Inspect fuel hose for air leaks.
If leaks are present, tighten fuel hose connections.
If no leaks are present, proceed to next step.
Check feed and return fuel hose assemblies to see if they are reversed.
If feed and return fuel hoses are reversed, disconnect and reconnect fuel hose
assemblies in correct positions.
If feed and return fuel hoses are in correct position, proceed to next step.
Check fuel pump to verify that it has been primed.
If fuel pump has not been primed, refer to paragraph 2-8d and prime pump.
If fuel pump has been primed, proceed to next step.
Inspect fuel filter cover for loose hardware.
If fuel filter cover is loose, tighten connections.
If fuel filter cover is not loose, report problem to your supervisor.