ARMY TM 9-6115-842-24
AIR FORCE TO 35C2-3-455-12
MARINE CORPS TM 09247A/09248A-24/2
TABLE 2-6. UNIT TROUBLESHOOTING - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
8. BLACK OR GREY SMOKE IN EXHAUST.
Check for improper grade of fuel.
a. If improper grade of fuel, drain fuel tank. Service fuel tank with clean fuel of a proper grade
(TABLE 2-2). Prime engine fuel system in accordance with TM 9-2815-253-24.
b. If proper grade of fuel and trouble persists, notify next higher level of maintenance.
9. BLUE OR WHITE EXHAUST SMOKE.
Step 1. Check for improper grade of fuel.
a. If proper grade of fuel, do Step 2.
b. If improper grade of fuel, drain fuel tank. Service fuel tank with clean fuel of a proper grade
(TABLE 2-2). Prime engine fuel system in accordance with TM 9-2815-253-24.
Step 2. Check for defective thermostat, refer to TM 9-2815-253-24.
a. If defective, replace thermostat in accordance with TM 9-2815-253-24.
b. If thermostat is not defective and trouble persists, notify next higher level of maintenance.
10. HIGH OIL CONSUMPTION.
Step 1.
Step 2.
Check for blocked air intake system.
a. If air intake system is not blocked, do Step 2.
b. If blocked, unblock or replace air intake system components as required, paragraphs 2-88 and 2+7.
Check for improper lubrication oil.
11.
a. If improper, drain crankcase and refill with proper lubrication oil (TABLE 2-3). Replace oil filter in
accordance with TM 9-2815-253-24.
b. If proper lubrication oil and trouble persists, notify next higher level of maintenance.
LOW OIL PRESSURE
Step 1. Check for improper lubrication oil.
a. If proper lubrication oil, do Step 2.
b. If improper, drain oil and refill with proper lubrication oil (TABLE 2–3), Replace oil filter in accordance
with TM 9-2815-253-24.
Step 2. Test for defective OIL PRESSURE indicator, paragraph 2-41.2.
a. If OIL PRESSURE indicator is not defective, do Step 3.
b. If defective, replace OIL PRESSURE indicator, paragraph 2-41.
Step 3. Test for defective oil pressure sender, paragraph 2-91.1.
a. If defective, replace oil pressure sender, paragraph 2-91.
./
b. If oil pressure sender is not defective and trouble persists, notify next higher level of maintenance.
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