4-9. GENERAL MAINTENANCE PROCEDURES - Continued
4-9.2 General Cleaning Instructions - Continued
1,1,1 Tricloroethane is toxic to skin, eyes and lungs. Skin and eye protection is required. Avoid
prolonged or repeated contact. Good, general ventilation is normally adequate.
Heavy oil and grease may be removed with a degreasing machine filled with 1,1,1
Trichloroethane. All parts shall be dipped in rust preventive oil after removal from machine.
Baking Soda Solution
Truck battery exterior surfaces, terminals, and cable clamps should be cleaned with a weak solution of baking soda
(item 5, Appendix E) and water. A bristle brush soaked in the solution may be used to remove caked dirt or
Solvent Spray Gun
Spray gun must be used in spray booth with filter and face shield for personnel since dry
cleaning solvent (item 10, Appendix E) is toxic to skin, eyes and lungs. Avoid prolonged or
Radiator cores should be cleaned with steam or hot water. If sediment within the core cannot be completely
removed in this way, core will have to be boiled in a chemical bath. This bath is a strong solution of caustic soda
and is available in a radiator repair shop.
Painted surfaces (e g truck body) shall be cleaned with a detergent solution and a pressure washer. Always rinse
surface with clean water.
Although the truck body paint is very durable, certain solvents may damage the paint. Keep solvents away from
painted surfaces. A pressure washer should be used to remove excessive road dirt, oil, and grease from exterior
parts prior to dismantling.
Oil and fuel tanks should be flushed with steam for at least 24 hours before welding or maintaining such tanks
Ball and Roller Bearings
When cleaning ball or roller bearings, place them in a basket. Suspend the basket in a dry cleaning solvent, (item
10, Appendix E) preferably, overnight. If needed, use a brush to remove caked grease or chips. Avoid rotating the
bearings until all solid particles are removed. When bearings are clean, spin them in a light lubricating oil to
remove solvent, (item 17, Appendix E).