TM 5-3810-306-20
TABLE 3-1. ORGANIZATIONAL TROUBLESHOOTING (CONTD)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
b. Contact General Support Maintenance to repair engine.
Step 5.
Fuel system malfunction.
a. Contact Direct Support Maintenance.
7.
ENGINE SURGES AT IDLE
Step 1.
Idle speed set too low (500-600 RPM).
a. Check idle speed. If OK, do Step 2.
b. Adjust low idle speed. (Refer to page 5-20.)
Step 2.
Air in the fuel system.
a. Bleed fuel system and check for suction leaks. (Refer to page 5-12.) If no air is detected, do
Step 3.
Step 3.
Restricted fuel supply.
a. Remove and inspect filters and screens and check fuel lines for restrictions. If OK, do Step 4.
b. Replace fuel filter and restricted fuel lines. (Refer to pages 5-15 and 5-9.)
Step 4.
Fuel system malfunction.
a. Contact Direct Support Maintenance.
8.
LOW LUBRICATING OIL PRESSURE
Step 1.
Defective oil pressure sending unit.
a. Using STE/ICE, perform VTM test for engine oil pressure. If OK, do Step 2.
b. Check engine oil pressure by using direct reading gauge. If no pressure, do Step 5.
c. Replace engine oil pressure sending unit. (Refer to page 8-46.)
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