TM-9-2320-272-23-5
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 5 OF 5
SEPTEMBER 2012
TM-9-2320-272-23-5 - Page 400 of 623
GENERAL CLEANING INSTRUCTIONS - Continued
6.
Oil Passages.
Particular attention must be given to all oil passages in castings and machined parts. Oil
passages must be clean and free of any obstruction.
a.
Clean passages with wire probes to break up any sludge or gum deposits.
b.
Wash passages by flushing with solvent cleaning compound.
WARNING
Compressed air source will not exceed 30 psi (207 kPa). When cleaning with
compressed air, eyeshields must be worn. Failure to comply may result in injury or death
to personnel.
c.
Dry passages with compressed air.
7.
Seals, Electrical Cables, and Flexible Hoses.
Clean with soap and water.
8.
Bearings.
a.
Bearings require special cleaning. After removing surface oil and gum deposits, wipe bearings dry; do
not use compressed air. After cleaning, coat bearings with oil, wrap, and hold for inspection.
b.
Refer to TM 9-214 for more information on care of bearings.
WARNING
•
Solvent cleaning compound is flammable and will not be used near open flame. Use only
in well-ventilated places and keep fire extinguisher nearby. Failure to comply may result
in injury or death to personnel.
•
Compressed air source will not exceed 30 psi (207 kPa). When cleaning with compressed
air, eyeshields must be worn. Failure to comply may result in injury or death to personnel.
9.
Machined Tooled Parts.
Clean with solvent cleaning compound and dry with compressed air.
10.
Machined Surfaces.
Clean with solvent cleaning compound and dry with lint-free cloth.
TM 9-2320-272-23-5
0819
0819-3
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