5-11. GENERAL CLEANING INSTRUCTIONS (CONT).

TM 9-2320-304-14&P 5-76 Direct Support and General Support Maintenance (Cont) 5-11. GENERAL CLEANING INSTRUCTIONS (CONT). WARNING Solvents used with a spray gun must be used in a spray booth with a filter. Face shield must be used by personnel operating spray gun. Failure to comply may result in injury to personnel. b. LHS Assembly. Use a spray gun and solvent for cleaning exterior of LHS assembly. Allow solvent to remain on item surface for 10 minutes before rinsing. Rinse with hot water under 80 to 120 pounds of pressure if available. An ordinary garden hose with nozzle may be used if other equipment is not available. Rinse thoroughly. WARNING To prevent corrosion, parts should be dipped in rust preventive within two hours of degreasing. c. Degreasing Machine. A degreasing machine may be used to remove heavy grease and oil from metal parts. d. Passages. After degreasing, check all oil passages and cavities for dirt or blockage before coating with rust preventive. Run a thin, flexible wire through oil passages to make sure they are not clogged. Use a pressure spray gun and drycleaning solvent to clean dirty passages. e. Electrical Parts. Electrical parts; such as coils, junction blocks, and switches, should not be soaked or sprayed with cleaning solutions. Clean these parts with a clean, lint-free cloth moistened with drycleaning solvent. 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. CAUTION · Never use gasoline or other petroleum based products to clean or preserve hydraulic system parts. f. Hydraulic System. When cleaning hydraulic system parts use drycleaning solvent, P-D-680. Clean and dry parts thoroughly to make sure no residue remains. If a coating preservative is required before assembly, apply a light film of preservative oil. If petroleum-free solvents are not available, use the same hydraulic fluid as used in the truck’s hydraulic system.