TM 5-6115-593-12
TO 35C2-3-463-1
Table 4-3. Organizational Troubleshooting-Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2. ENGINE CRANKS AT NORMAL SPEED WILL NOT START-continued
NOTE
To check this component, refer to FO-3 to determine where these points are electrically accessible
to meter probes.
If present, L1 may be defective and must be referred to next higher maintenance.
If 24V DC is absent, diode CR23 (part of AC-DC control relay assembly, 18, figure 4-19) may be
defective and must be referred to higher maintenance.
3. ENGINE SHUTS DOWN SOON AFTER STARTING.
Step 1.
Using a multimeter, check 24V DC across the starter solenoid L1 (see figure 4-40) and crank engine until it
starts. Note voltage reading across L1 when engine shuts down.
NOTE
To check this component refer to FO-3 to determine where these points are electrically accessible
to meter probes.
If reading remains at 24V DC after shut down, L1 may be defective and must be referred to next
higher maintenance.
If reading drops to zero as engine shuts down, proceed to next step.
Step 2.
Place a temporary short across oil pressure switch OP1 (see figures 4-40 and 4-46) and, using a
multimeter, check for presence of 24V DC across contacts 3 and 4 or run-stop relay K1 (7, figure 4-19).
NOTE
To check this component refer to FO-3 to determine where these points are electrically accessible
to jumper.
If present, K1 may be defective and should be referred to next higher level of maintenance. If 24V
DC is present, proceed to next step.
4-23
