Table 6-3. Improved Clean Air Induction System Troubleshooting - Continued

TB 9-2300-378-14

Table 6-3. Improved Clean Air Induction System Troublshooting - Continued

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

POWERPLANT WARNING AND DUST DEFLECTOR WARNING LIGHTS ON, ONE (OR

BOTH) DUST DETECTOR PRESSURE SWITCH(ES) TRIPPED, AND DUST DETECTOR

FILTER STRIP INDICATES CONTAMINATION OF INTAKE AIR BY: - Continued

OIL, BLACK, AND WET

Notify support maintenance personnel of defective turbosupercharger compressor

shaft seal.

WATER - (Wet, not oil, possible mud color of local surroundings).

Inspect

air cleaner outlet hose for holes or loose clamps.

Step 1.

clamps are loose, tighten them.

b. If

hose is damaged, replace (para 6-11).

c . If

air cleaner outlet hose is OK, go to step 2.

Step 2.

Inspect

air cleaner outlet elbow for leaking gasket, cracks, or beaks.

gasket leaks, replace it (para. 6-14b).

b. If

elbow is damaged, replace (para 6-14 b).

Service

dust detector filter strip (see quarterly PMCS, item 23).

Step 3.

POWERPLANT WARNING AND DUST DETECTOR WARNING LIGHTS ON, ONE (OR

BOTH) DUST DETECTOR PRESSURE SWITCH(ES) TRIPPED, BUT DUST DETECTOR

FILTER STRIP DOES NOT INDICATE CONTAMINATION OF INTAKE AIR.

Press plastic cap on dust detector pressure switch to reset switch.

Step 1.

WARNING

Make sure area around vehicle is clear of

personnel and equipment before per-

forming step 2.

Start engine. Apply vehicle brakes. Put transmission lever in high gear and

Step 2.

operate engine at 1800 to 1900 rpm for no more than 30 seconds. If switch

trips and warning lights come on again, replace dust detector pressure

6-16