TM-9-2320-272-23-4

TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)

TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 4 OF 5

SEPTEMBER 2012

TM-9-2320-272-23-4 - Page 969 of 1393

CLEANING AND INSPECTION

WARNING

Solvent cleaning compound is flammable and toxic. Do not use near an open flame and

always have a fire extinguisher nearby when solvents are used. Use only in well-ventilated

places, wear protective clothing, and dispose of cleaning rags in approved container. Failure

to comply may result in damage to equipment, injury, or death to personnel.

1.

Steam clean exterior of reservoir.

2.

Flush interior of reservoir with solvent cleaning compound.

3.

Inspect reservoir for leaks:

a.

Plug all openings in reservoir except for oil gauge and filter screen opening.

b.

Insert air hose in filter inlet and cover opening around air hose.

c.

Coat exterior of reservoir with soapy water.

d.

Apply 6 psi (41 kPa) air pressure for a minimum of two minutes and check for air bubbles indicating leaks.

e.

Repair defective reservoir if any leaks are found (TM 9-237). Replace reservoir if leaks cannot

be

repaired.

END OF TASK

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