Table 4-2. Unit Troubleshooting-continued -706880176

TM 5-4210-233-14&P-1

Table 4-2. Unit Troubleshooting - Continued

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

ENGINE - Continued

EXHAUST SMOKE - BLACK

Step 1. Recheck engine when operating.

Allow engine to reach operating temperature and check for black smoke.

Step 2. Check fuel.

Drain and refill tank with correct fuel.

Step 3. Check exhaust for restriction.

Remove restriction or notify Direct Support to replace exhaust.

Step 4. Check air cleaner.

Replace air cleaner if blocked (see para 4-128. ).

HIGH LUBRICATING OIL CONSUMPTION

Step 1. Check external oil lines or connections for leaks.

Tighten/remake connections, or replace hoses (air compressor, turbocharger)

Step 2. Check crankcase oil level.

Drain oil from crankcase if overfilled.

Step 3. Check crankcase breathers.

Clean/replace as required (see para 4-140).

Step 4. Check air cleaner.

Replace air cleaner if blocked (see para 4-1 8. ).

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