TM 10-4320-310-146-8.REPAIR/REPLACE CRANKCASE (Continued)CLEANING/INSPECTION:WARNINGDry cleaning solvent P-D-680 (safety or Stoddard's Solvent)Is potentially dangerous. Avoid repeated and prolongedbreathing of vapors and skin contact with the liquid. Do notuse near open flame, arcing equipment, or other Ignitionsources. Always wear eye protection and protectiveclothing. The flash point of P-D-680 is 100°F to 138°F(38°C to 59°C).Death or serious injury could occur If compressed air isdirected against the skin. Do not use compressed air forcleaning or drying unless the pressure Is/has been reducedto 30 psi (2.06 bar) or less. When working with compressedair always use chip guards, eye protection, and otherpersonal equipment.Live steam used for cleaning shall not exceed 100 psi (6.9bar). Use goggles or face shield for eye protection. Do notdirect live steam against skin.1Clean crankcase thoroughly with steam cleaner. Clean all exterior openings and surfaces. Be especially sure toclean oil passages to make sure they are clear. Use a small and/or large wire bristle brush where necessary toremove carbon or other deposits from openings and surfaces. Use dry cleaning solvent as necessary to soften andremove carbon or hardened oil deposits. Dry with compressed air.2Inspect crankcase for any cracks, discoloration, distortion, rust, corrosion, or other damage. If crankcase iscracked, distorted, overheated, seriously rusted or corroded on machined surfaces, or exhibits other seriousdamage, replace crankcase.3Inspect two studs (9), two studs (10), and two studs (11) for thread damage. If damaged, replace studs.ASSEMBLY:1Lubricate new joint (8) with lubricating oil and install on oil drain plug (7). Install oil drain plug.2Install cylinder pin (6).3Lubricate new preformed packing (5) with lubricating oil and install on oil fill cap (4). install oil fill cap.4Lubricate new preformed packing (3) with lubricating oil and install on dipstick (1). Install oil dipstick in crankcase(2).6-27
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