TM 10-4520-259-13&P
Table 3-1. Operator Troubleshooting Procedures - Continued
Malfunction
Test or Inspection
Corrective Action
Step 4.
Check supply and return fuel hose assemblies to see if they are reversed.
If reversed, disconnect and reconnect fuel hose assemblies correctly.
Step 5.
Check fuel pump to verify that it has been primed.
Prime pump as described in paragraph 2-10.
Step 6.
Check ignition cable assemblies for loose connections at spark plug and transformer end.
Tighten any loose connections.
3.
FUEL PRESSURE TOO HIGH OR TOO LOW
Step 1.
Check burner fuel control valve.
Ensure valve is fully open.
Step 2.
Check hoses and make certain they are not clogged or kinked.
Remove kinks and/or replace clogged hoses.
Step 3.
Check for clogged fuel filter and/or strainer.
If clogged, drain.
4.
FUEL PRESSURE PULSATES
Step 1.
Check fuel feed hose connections for leaks.
Tighten fuel hose connections.
Step 2.
Check for clogged fuel filter.
If clogged, drain.
3-4
