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Page Title:
MECHANICAL SYSTEMS TROUBLESHOOTING - UNIT - continued |
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 TM 9-2320-361-24-1
0006 00
MECHANICAL SYSTEMS TROUBLESHOOTING - UNIT (Contd)
Table 1. Engine Troubleshooting Procedures (Contd).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
6. Check vertical exhaust system
1. If water is present in exhaust
1. ENGINE WILL NOT
and turbocharger for presence of
elbow, disassemble and drain
CRANK (Contd)
water. Remove exhaust elbow
exhaust system (WP 0073 00).
from turbocharger (WP 0073 00).
(For M50A3 series vehicles, refer
(For M50A3 series vehicles, refer
to WP 0074 00).
to WP 0074 00).
2. If water is present in
turbocharger housing, identified
by water on turbocharger fins or
hub, replace turbocharger
1. Check air cleaner indicator
1. If red appears at indicator
2. ENGINE CRANKS BUT
(TM 9-2320-361-10).
window, inspect air intake head
WILL NOT START
for restrictions. If restrictions are
not present, replace air cleaner
element (WP 0052 00).
2. Reset air cleaner indicator
(TM 9-2320-361-10).
WARNING
Diesel fuel is flammable. Do not
perform troubleshooting checks
near open flame, sparks, or
electricity. Injury or death to
personnel may result.
Compressed air source must not
exceed 30 psi (207 kPa). Wear
eyeshields when cleaning with
compressed air. Failure to wear
eyeshields may result in injury to
personnel.
2. Turn accessory switch to ON
1. If water or contamination are
position and drain 1/2 pint
present, remove fuel tank
(0.25 liter) of fuel from primary
fuel filter, secondary fuel filter,
2. Clean and flush entire fuel
and final fuel filter. Check for
system. Dry system with
contaminated fuel.
compressed air.
3. Check for white exhaust smoke
1. If white smoke can be seen, air
during cranking.
may be in fuel system. Bleed fuel
system (WP 0064 00).
2. If white smoke can be seen,
coolant may be inside
combustion chambers. If coolant
is present on dipstick, check
cylinder heads and gaskets for
defects (WP 0027 00).
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