Section II TROUBLESHOOTING PROCEDURES

TM 5-4110-234-14

TO 40R7-5-7-1

Section II TROUBLESHOOTING PROCEDURES

3-4. USE OF TABLE

Table 3-1 contains troubleshooting instructions designed to be useful in diagnosing and correcting unsatisfactory

operation or failure of the refrigerator.

a. Table 3-1 lists the common malfunctions which you may find during the operation or maintenance of the refrigeration

unit or its components. You should perform the tests/inspections and corrective actions in the order listed.

b. This manual cannot list all malfunctions that may occur, nor all tests or inspections and corrective actions. If a

malfunction is not listed or is not corrected by listed corrective actions, notify your supervisor.

c. Any trouble or corrective action beyond the scope of operator maintenance shall be reported to organizational

maintenance.

TABLE 3-1. OPERATOR'S TROUBLESHOOTING

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

1. REFRIGERATION UNIT DOES NOT START

Step 1. Check that REFRIGERATOR ON-OFF Switch is in the ON position.

Turn switch ON.

Step 2. On Model F10000R-6 check that main power cable is connected and that power source is on.

Connect power cable and turn on power.

Step 3. On Model F10000RG-2 check that fuel tank is not empty.

Fill with gasoline.

Step 4. On Model F10000RG-2 check that battery is not in discharged condition.

Report to organizational maintenance.

Step 5. On Model F10000R-6 check to see if OOMPRESSOR OVERLOAD circuit breaker is tripped.

Reset (push in) circuit breaker. If circuit breaker continues to trip or will not reset contact

organizational maintenance.

Step 6 On Model F10000RG-2 check to see if OVERCRANKING CIRCUIT BREAKER is tripped.

Reset (push in) circuit breaker. If circuit breaker continues to trip or will not reset contact

organizational maintenance.

Step 7. On Model F10000RG-2 check gasoline strainer sediment bowl for dirt or visible contaminants.

Contact organizational maintenance for cleaning of fuel strainer.

2. REFRIGERATION UNIT RUNS CONTINUOUSLY

Step 1. Check for excessive leakage of warm air into enclosure.

Keep enclosure door closed and check gaskets for leaks.

Step 2. Check evaporator and condenser coils for blockages.

Remove obvious blockages from outsides of screens. If coils are dirty or clogged inside of

screens contact organizational maintenance.

Step 3. Check the refrigerant sight glass.

If refrigerant has a milky appearance, bubbles are present or center indicator has a pink

color contact organizational maintenance.

Step 4. Check arrangement of items in refrigerator enclosure for free air passage to and from evaporator

coil.

3-2