4-22. GENERAL CLEANING INSTRUCTIONS.

TM 9-2320-304-14&P 4-144 Organizational Maintenance Instructions (Cont) 4-22. GENERAL CLEANING INSTRUCTIONS. WARNING · Drycleaning solvent (P-D-680) is TOXIC and flammable. Wear protective goggles, face shield, and gloves; use only in a well-ventilated area; avoid contact with skin, eyes, and clothes; and do not breathe vapors. Keep away from heat or flame. Never smoke when using solvent. The flashpoint for Type III Drycleaning Solvent is 200_F (93_C). Failure to do so may result in injury or death to personnel. · If personnel become dizzy while using cleaning solvent, immediately get fresh air and medical help. If solvent contacts skin or clothes, flush with cold water. If solvent contacts eyes, immediately flush eyes with water, and get immediate medical attention. · Never use fuel to clean parts. Fuel is highly flammable. Serious personal injury could result if fuel ignites during cleaning. · Compressed air used for cleaning purposes will not exceed 30 psi (207 kPa). Use only with effective chip guarding and personal protective equipment (goggles/shield, gloves, etc). Failure to comply may result in injury to personnel. a. Cleaning Solvents. Use only approved cleaning solvents to clean parts. Drycleaning solvent P-D-680 (Item 18, Appendix F) is commonly used. Always work in a well-ventilated area. b. Removing Deposits. Soak parts in drycleaning solvent (Item 18, Appendix F), and wash away deposits by flushing or spraying. When necessary, brush with a soft bristle brush (not wire) moistened in solvent. Use compressed air to dry parts (except bearings) after cleaning. Bearings must drip and air dry. c. Tools. Do not use wire brushes, abrasive wheels, or abrasive compounds to clean parts unless specifically approved in the detailed procedures. Parts may be scratched or altered and a highly stressed part may weaken. d. Ball and Roller Bearings. When cleaning ball or roller bearings, place them in a basket and suspend them in a container of drycleaning solvent (Item 18, Appendix F). If needed, use a brush to remove caked grease, chips, etc. Avoid rotating bearing before solid particles are removed to prevent damaging races and balls. When bearings have been cleaned, coat them lightly with lubricating oil (Item 10, Appendix F) to remove solvent. CAUTION Do not clean tires, lubricant seals, rubber hoses, or electrical components with solvent. e. Rubber Parts. Do not clean preformed packings or rubber parts in drycleaning solvent. Wipe parts clean with a dry, cleaning cloth (Item 5, Appendix F). WARNING Steam cleaning creates hazardous noise levels and severe burn potential. Eye, skin, and ear protection is required. Failure to comply may result in injury to personnel. f. Exterior Parts. Steam clean all exterior parts thoroughly before removing. This will make inspection and disassembly easier.