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TM 9-2320-360-20-1
2-17. GENERAL CLEANING INSTRUCTIONS (CONT)
WARNING
Face shield must be used by personnel operating spray gun. Failure to comply
may result in injury to personnel.
g.
Engine, Cab, and Body. Use a spray gun and solvent mixture for cleaning exterior of engine, cab, and body.
Allow mixture to remain on item surface for about 10 minutes before rinsing. Rinse with hot water under 80 to 120 psi
(550 to 830 kPa), if available. An ordinary garden hose with nozzle may be used if other equipment is not available.
Rinse thoroughly.
h.
Passages. Check all oil passages and cavities for dirt or blockage. A thin, flexible wire should be run through oil
passages to ensure they are not clogged. Individual passages that are dirty may be cleaned using a pressure spray gun
and dry cleaning solvent.
i.
Electrical Parts. Electrical parts, such as coils, junction blocks, switches, and igniters, which use insulating
materials, should not be soaked or sprayed with cleaning solutions. Clean these parts with a clean, lint-free cloth.
j.
Fuel Tanks. Pay special attention to all warnings and cautions when working on fuel tanks.
WARNING
Battery acid (electrolyte) is extremely harmful. Always wear safety goggles and
rubber gloves and do not smoke when performing maintenance on batteries.
injury will result if acid contacts skin or eyes. Wear rubber apron to prevent
Clothing being damaged.
k.
Battery. Exterior surfaces of the electrical system and battery should be cleaned with a solution of baking soda
and water. Apply solution with a bristle brush to remove any corrosion.
2-18. GENERAL INSPECTION INSTRUCTIONS
a.
Inspection. Inspection consists of checking for defects such as distortion, wear, cracks, and pitting. Clean all
parts before inspection.
b.
Sealing Surfaces. Inspect all surfaces in contact with gaskets, packings, or seals. Ensure there are no nicks,
burrs, or scratches. If any defect is found, remove or repair it as outlined in para 2-19.
c.
Bearings. Check bearings for rusted or pitted balls, races, or separators. Check balls and races for brinelling,
abrasion, and serious discoloration. Following are causes for bearing rejection:
(1)
Cuts or grooves parallel to ball or roller rotation.
(2)
Pits.
(3)
Cracks.
d.
Drain Plugs. When removing drain plugs from transmission, engine, or hydraulic system components, inspect
sediment adhering to plug. A few fine particles are normal. A build-up of grit or fine metal particles may indicate part
failure. This inspection is effective in determining defective parts prior to internal inspection of parts.
e.
Splines. Inspect shaft splines for wear, pitting, rolling, peeing, and fatigue cracks.
2-986
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