TM-9-2320-361-24-2 Field Maintenance Manual Volume 2 for M44A2 Series Trucks
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TM 9-2320-361-24-2 0265 00 0265 00-4 DISCHARGE VALVE REPAIR (Contd) CLEANING AND INSPECTION WARNING Skysol 100 solvent is combustible; DO NOT use or store near heat, sparks, flame, or other ignition sources. Use mechanical ventilation whenever product is used in a confined space, heated above ambient temperatures, or agitated. Keep container sealed when not in use. Contact with Skysol 100 may cause skin irritation. Use chemical-resistant gloves. In case of skin contact, remove any contaminated clothing and wash skin thoroughly with soap and water. Wash contaminated clothing before reuse. Eye contact may cause irritation, tearing, or blurring of vision. Use face shield or goggles when eye contact may occur. In case of eye contact, flush eyes with large amounts of water for at least 15 minutes or until irritation subsides. Inhalation may cause irritation to upper respiratory passages. DO NOT have food or drink in the vicinity. Failure to comply may result in injury to personnel. NOTE • Perform step 1 for cleaning M49A2C fuel tank discharge valves. • Perform step 2 for cleaning M50A3 water tank discharge valves. 1. Wash all parts with Skysol 100 solvent and allow to air dry. 2. Wash all parts with soap and hot water. Rinse all parts with hot water and dry using a clean, soft rag. Table 1. Discharge Valve Wear Limits. 3. Inspect cam stem (7) for scoring or cracks and wear. Refer to table 1, Discharge Valve Wear Limits, for measurements. Replace if damaged or worn past limits. 4. Inspect strainer (2) for tears. Replace if damaged. 5. Inspect valve housing (9) for cracks, stripped threads, scoring, or worn bores. Refer to table 1, Discharge Valve Wear Limits, for measurements. Replace if damaged or worn past limits. 6. Inspect cap (3) for wear or cracks at stem hole. Replace if damaged. 7. Inspect holder (1) for wear or cracks at tapered stem hole. Replace if damaged. 8. Inspect retainer (10) for cracks or damaged threads. Replace if damaged. ITEM NO. ITEM/POINT OF MEASUREMENT WEAR LIMITS/TOLERANCE INCHES MILLIMETERS 4 7 9 Spring (free length) Cam stem: Inside stem bore end diameter Plug end diameter Machined with square Discharge valve housing: Inside stem bore/inner diameter Outer stem bore/inner diameter 5.0 0.422–0.437 0.644–0.648 0.497–0.500 0.433–0.443 0.651–0.661 127.0 10.72–11.10 16.36–16.46 11.00–12.70 10.99–11.25 16.53–16.79