ARMY TM 9-6115-643-24
AIR FORCE TO 35C2-3-445-22
8. BLACK OR GREY SMOKE IN EXHAUST
TABLE 2-6. UNIT TROUBLESHOOTING - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 1.
Check for improper grade of fuel.
a.
If improper grade of fuel, drain engine fuel system. Drain generator set tank. Service gen-
erator set fuel tank with clean fuel of a proper grade (TABLE 2–2). Prime engine fuel sys-
tem in accordance with TM 9-2815-254-24.
b.
If proper grade of fuel, notify next higher level of maintenance.
9. BLUE OR WHITE EXHAUST SMOKE.
Step 1.
Check for excessive engine oil level.
a.
If oil level is proper, do step 2.
b.
If oil level is excessive, drain to proper level, paragraph d.
Step 2.
Check for improper grade of fuel.
a.
If proper grade of fuel, do step 3.
b.
If improper grade, drain engine fuel system and generator set tank. Service generator set
fuel tank with clean fuel of a proper grade (TABLE 2–2). Prime engine fuel system in ac-
cordance with TM 9-2815-254-24.
Step 3.
Check for defective thermostat, refer to TM 9-2815-254-24.
a.
If defective, replace thermostat in accordance with TM 9-2815-254-24.
b.
If thermostat is not defective, notify next higher level of maintenance.
10. HIGH OIL CONSUMPTION.
Step 1.
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, paragraph 2.72.
Step 2.
Check for improper lube oil type.
a.
If improper, and paragraph 2.109.10 drain oil and refill with proper lube oil type (TABLE
2-3). Replace oil filter in accordance with TM 9-2815-254-24.
b.
If proper lube oil type, notify next higher level of maintenance.
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