TB-9-2300-378-14
M48 & M60 SERIES VEHICLES
TECHNICAL BULLETIN; AIR INDUCTION SYSTEM MAINTENANCE
SEPTEMBER 1985
TB-9-2300-378-14 - Page 138 of 296
TB 9-2300-378-14
Table 6-3. Improved Clean Air Induction System Troublshooting - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
6.
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
D.
OIL, BLACK, AND WET
Notify support maintenance personnel of defective turbosupercharger compressor
shaft seal.
E.
WATER - (Wet, not oil, possible mud color of local surroundings).
Step 1.
Inspect air cleaner outlet hose for holes or loose clamps.
a.
If 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.
a.
If gasket leaks, replace it (para. 6-14b).
b.
If elbow is damaged, replace (para 6-14 b).
Step 3.
Service dust detector filter strip (see quarterly PMCS, item 23).
7.
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.
Step 1.
Press plastic cap on dust detector pressure switch to reset switch.
WARNING
Make sure area around vehicle is clear of
personnel and equipment before per-
forming step 2.
Step 2.
Start engine.
Apply vehicle brakes.
Put transmission lever in high gear and
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
switch (para 6-17b).
6-16
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