TM-9-2330-356-14

SEMITRAILER, TANK: 5000 GALLON, BULK HAUL, SELF LOAD/UNLOAD M967 AND M967A1; SEMITRAILER, TANK: 5000 GALLON, FUEL DISPENSING, AUTOMOTIVE M969 AND M969A1; SEMITRAILER, TANK: 5000 GALLON, FUEL DISPENSING, UNDER/OVERWING AIRCRAFT M970 AND M970A1

TECHNICAL MANUAL; OPERATOR’S, UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL

OCTOBER 1990

TM-9-2330-356-14 - Page 150 of 528

TM 9-2330-356-14

Table 4-9. Unit Troubleshooting (Con ‘t).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

ENGINE

13. ENGINE STARTER MOTOR WILL NOT RUN.

Step 1.

Step 2.

Step 3.

Step 4.

Check condition of battery.

NOTE

Do not slave start or Jump start batteries.

Charge battery if discharged (para 4-23).

Check for a blown circuit breaker.

Replace blown circuit breaker.

Test for a defective Engine or Starter switch. Use a multimeter or a 12V test light.

If either switch Is defective, replace that switch.

Test for a defective starter solenoid (para 4-80).

If defective, replace solenoid.

14. ENGINE TURNS OVER BUT FAILS TO START

Step 1.

Step 2.

Step 3.

Step 4.

Check engine temperature.

a. If

engine temperature is below 240°F, test high-temperature switch (para 4-22).

b.

If temperature is above 240°F, the high-temperature switch (para 4-22) contacts have

opened and de-energized the fuel stop solenoid, stopping the engine. Allow engine to

cool before attempting to start engine again.

Check for defective manifold heater and lead (para 4-20).

If defective, replace the manifold heater or the lead.

(Defective fuel system) Check fuel lines for leaks. Test for non-functioning electric fuel pump

(para 4-73).

a.

Tighten all connections and replace or repair any damaged fuel lines.

b.

Replace electric fuel pumps (para 4-73), if defective, or repair or replace fuel pump

wiring.

Check air cleaner dirt indicator for showing of red band and examine for clogged filter intake.

a.

Replace filter element if red band is showing (para 3-18).

b.

Remove air cleaner intake cap and clean as necessary (para 3-18).

c.

Replace air cleaner if damaged (para 4-74).

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