TM 5-3805-25420-1
ORGANIZATIONAL TROUBLESHOOTING - CONTINUED
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
9.
ENGINE OIL PRESSURE INDICATION ABOVE 75 PSI AT 2100 RPM.
Start engine (TM 5-3805-254-10) and allow to reach operating temperature. Shut down engine (TM 5-
3805-254-10). Remove engine OIL PRESSURE gage (page 2-1426). Connect Simplified Test
Equipment for Internal Combustion Engines (STE/ICE) to engine oil pressure gage supply line. Start
engine (TM 5-3805-254-10) and check for 40 to 75 psi at 2100 rpm on STE/ICE readout display. Shut
down engine (TM 5-3805-254-10) and disconnect STE/ICE.
NOTE
For normal operating engine oil pressure refer to TM 5-3805-254-10.
a.
Check oil level (TM 5-3805-254-10).
b.
If display is between 40 and 75 psi at 2100 rpm, replace engine OIL PRESSURE gage (page 2-1426).
c.
If display is above 75 psi at 2100 rpm, notify Direct Support Maintenance.
10. ENGINE USES TOO MUCH FUEL.
Step 1.
Check AIR CLEANER VACUUM gage reading (TM 5-3805-254-10). If in red zone, remove air cleaner
element (1) (page 2-452) and check for clogged or damaged condition.
a.
If air cleaner element (1) is clogged or damaged, clean or replace (page 2-452).
b.
If air cleaner element (1) is not clogged or damaged, install (page 2-452) and go to step 2.
Step 2.
Check muffler (2) and exhaust pipes (3) for clogged or damaged condition.
a.
if muffler (2) or exhaust pipes (3) are clogged or damaged, clean or replace (page 2-604 or 2-590).
b.
If muffler (2) or exhaust pipes (3) are not clogged or damaged, go to step 3.
Step 3.
Check that engine oil level is not above H mark on dipstick (4) (TM 5-3805-254-10).
a.
If engine oil level is above H mark on dipstick (4), check for presence of diesel fuel in engine oil. If diesel
fuel is present, notify Direct Support Maintenance.
2-112
