TM 9-6115-729-24
0011
TROUBLESHOOTING FAILURES WITHOUT FAULT CODES - Continued
WARNING
Cooling system operates at high temperature and pressure. Contact with high pressure steam
and/or liquids can result in burns and scalding. Shut down generator set, and allow system to cool
before performing checks, services, and maintenance. Failure to comply can cause injury or
death to personnel.
When running, generator set engine has hot metal surfaces that will burn flesh on contact. Shut
down generator set, and allow engine to cool before performing checks, services, and
maintenance. Wear gloves and additional protective clothing as required. Failure to comply can
cause injury or death to personnel.
SYMPTOM
24.
Excessive Black Smoke.
MALFUNCTION
Air Inlet Problem.
CORRECTIVE ACTION
STEP 1.
Check the air inlet and exhaust for restrictions and leaks.
a. Check for a restriction in the air inlet. Inspect and clear the obstruction.
b. Clean or replace air inlet filter (WP 0070).
c.
Repair any air leaks in the air inlet system (WP 0071).
d. Check for loose clamps or broken expansion joints on all pipes between the
Turbo and air-to-air after cooler and between the air-to-air aftercooler and
engine intake manifold.
e. If there are no problems with the air inlet system, replace failed atmospheric
or air inlet pressure sensor (WP 0100).
STEP 2.
Check for failed turbocharger. Repair or replace turbocharger as required
STEP 3.
Verify the problem has been resolved.
MALFUNCTION
Engine Timing.
CORRECTIVE ACTION
STEP 1.
Inspect/adjust engine timing sensors.
a. Inspect sensors and install and adjust if good (WP 0013).
b. If sensors are damaged, replace and adjust sensors (WP 0100).
STEP 2.
Check valve adjustment.
a. Readjust valves, as required (WP 0115).
b. If any valves cannot be adjusted to specifications, replace the cylinder head
0011-30
