TROUBLESHOOTING PROCEDURES - CONTINUED
Table 1. Engine Troubleshooting Procedures - Continued.
TEST OR INSPECTION
Engine Exhaust Smokes Excessively
3. Check current draw
start 1. If current draw
is more than
less than 16 amperes, replace cold
(Black or Gray Smoke) - Continued.
to wire 377-OR. Have assistant
turn engine start switch and
new one. Close left- and right-side
starting aid switch to ON
door assemblies (TM 5-3895-379-
positions (TM 5-3895-379-10).
The current draw should be 16 to
18 amperes at 12 volts. Turn 2. If current draw is between 18 and
16 amperes, remove clamp-on
engine start switch to OFF
position and turn off battery
Particles blown by compressed air are hazardous. DO NOT exceed 15
psi (103 kPa) nozzle pressure when drying parts with compressed air.
Use a maximum of 30 psi (207 kPa) when cleaning components. DO
NOT direct compressed air against human skin. Failure to follow this
warning may cause injury or death. Make sure air stream is directed
away from user and other personnel in the area. To prevent injury, user
must wear protective goggles or face shield.
4. Check cold start heater for If bubbles are visible from the cold
leakage. Remove fuel line and start heater, replace cold start heater
an air supply with maximum 20
psi (140 kPa) to fuel inlet passage
of cold start heater. Submerge
cold start heater in a container of
clean diesel fuel for 10 seconds.
No air bubbles should be visible
from cold start heater.
1. Check engine oil level (TM 5- 1. If engine oil level is too high, drain
(White or Blue Smoke).
engine oil until level is correct
2. If engine oil level is correct, go to
2. Remove and test thermostat (WP 1. If thermostat is bad, install
2. If thermostat is OK, replace
go to Step 3.