Table 3-2. Troubleshooting (Continued)
TEST OR INSPECTION
5. FUEL PRESSURE TOO LOW OR FUEL PRESSURE PULSATES (WATER HEATER/DRYER). (Cont).
Check for clogged fuel filter.
If fuel filter is clogged, refer to paragraph 3-7 and perform maintenance on fuel filter.
If problem persists, notify your supervisor.
6. FUEL PUMP FAILS TO DELIVER FUEL TO BURNER (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 for proper rotation of fuel pump.
If fuel pump rotates in wrong direction, notify your supervisor.
If fuel pump rotates in proper direction, proceed to next step.
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 supply and return hose assemblies to see if they are reversed.
If supply and return hoses are reversed, disconnect and reconnect them in proper
If supply and return hoses are not reversed, 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.