TM-9-2320-361-34
2-1/2-TON, 6x6, M44A2 SERIES TRUCKS (MULTIFUEL)
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE
MAY 1992
TM-9-2320-361-34 - Page 49 of 764
TM 9-2320-361-34
2-8. CLEANING
(Contd)
h. Bearings.
(1)
Bearings require special cleaning. After removing surface oil and gum deposits, place bearings in hot
oil 140F (60°C) to loosen congealed oil and grease. Wipe bearings dry; do not use compressed air. After
cleaning, coat bearings with oil, wrap in paper, and hold for inspection.
(2)
Refer to TM 9-214 for information on care of bearings.
. Drycleaning solvent is flammable and will not be used near open
flame. Use only in well-ventilated places. Failure to do so may
result in injury to personnel.
●
Compressed air source will not exceed 30 psi (207 kPa). When
cleaning with compressed air, eyeshields must be worn. Failure to
wear eyeshields may result in injury to personnel.
i. Machine Tooled Parts.
Clean with drycleaning solvent and dry with compressed air.
j. Machined Surfaces.
Clean with drycleaning solvent and dry with lint-free cloth.
k. Mating Surfaces.
Use compressed air to blow out all tapped screw holes when cleaning gasket material
(ex: cylinder head gasket cleaning).
2-9. INSPECTION
a. General Instructions.
Procedures for inspections will be the same for many parts and components
which make up the vehicle subassemblies. General procedures are detailed in “b’ through “p.” Dimensional
standards for parts have been fixed at extremely close tolerances, so use specification tables. Use specified
inspection equipment for inspections where cracks and other damage cannot be spotted visually. Exercise
extreme care in all phases of inspection.
b. Castings.
(1)
Inspect all ferrous and nonferrous castings for cracks using a magnifying glass and strong light.
(2)
Refer to MIL-I-6866, Inspection, Liquid Penetrant Methods, and MIL-I-6868, Inspection Process,
Magnetic Particles.
(3)
Particularly check areas around studs, pipe plugs, threaded inserts, and sharp corners. Replace all
cracked castings.
(4)
Inspect machined surfaces for nicks, burrs, or raised metal. Mark damaged areas for repair or
replacement.
(5)
Inspect all pipe plugs, pipe
plug openings, screws, and screw openings for damaged or stripped threads.
(6)
Check all gasket mating surfaces, flanges on housings, and supports for warpage with a straightedge
or surface plate. Visually inspect mating flanges for discolorations. This may indicate persistent oil leakage.
(7)
Check all castings for conformance to applicable repair standards.
c. Bearings.
Refer to TM 9-214 for inspection of bearings. Check all bearings for conformance to applicable
repair standards.
d. Studs, Bolts, and Screws.
Replace if threads are damaged, bent, loose, or stretched.
e. Gears.
(1)
(2)
(3)
2-34
NOTE
When gear teeth wear limits are not established, good judgement is
required to determine if gear replacement is necessary.
Inspect all gears for cracks using a magnifying glass and strong light. No cracks are allowed.
Inspect gear teeth for wear, sharp fins, burrs, and galled or pitted surfaces.
Check keyway slots for wear and/or damage.
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