TM 10-4510-206-14
Table 4-2.
Organizational Troubleshooting Procedures (Cont’d)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2.
FLAME FAILURE DURING FIRING CYCLE (CONT’D)
Step 12.
Check solenoid fuel valve to see if it is defective.
Replace solenoid fuel valve.
See paragraph 4-14.
3.
FUEL PRESSURE GAGE INDICATES PRESSURE TOO LOW
Step 1.
Check to see if burner control valve is defective.
Replace burner control valve.
See paragraph 4-14.
Step 2.
Check fuel pump pressure to see if it is 100 psi.
Adjust pump pressure.
Step 3.
Check to see if fuel filter is dirty or clogged.
Clean filter.
See paragraph 4-14.
Step 4.
Check for breaks in fuel hoses or loose couplings.
Tighten couplings or replace hose.
4.
FUEL PRESSURE GAGE INDICATES PRESSURE TOO HIGH
Step 1.
Check to see if fuel pressure gage is defective.
Replace fuel pressure gage.
See paragraph 4-14.
Step 2.
Check to see if fuel pump pressure is properly adjusted.
Adjust fuel pump pressure.
Step 3.
Check to see if fuel nozzle is defective.
Clean fuel nozzle.
Replace fuel nozzle.
Step 4.
Check to see if return fuel hose is restricted.
Disconnect return fuel hose and remove restriction.
4-11
