TM 10-4320-310-14
6-8.
REPAIR/REPLACE CRANKCASE (Continued)
CLEANING/INSPECTION:
WARNING
Dry cleaning solvent P-D-680 (safety or Stoddard's Solvent)
Is potentially dangerous. Avoid repeated and prolonged
breathing of vapors and skin contact with the liquid. Do not
use near open flame, arcing equipment, or other Ignition
sources. Always wear eye protection and protective
clothing. 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 is
directed against the skin. Do not use compressed air for
cleaning or drying unless the pressure Is/has been reduced
to 30 psi (2.06 bar) or less. When working with compressed
air always use chip guards, eye protection, and other
personal equipment.
Live steam used for cleaning shall not exceed 100 psi (6.9
bar). Use goggles or face shield for eye protection. Do not
direct live steam against skin.
1
Clean crankcase thoroughly with steam cleaner. Clean all exterior openings and surfaces. Be especially sure to
clean oil passages to make sure they are clear. Use a small and/or large wire bristle brush where necessary to
remove carbon or other deposits from openings and surfaces. Use dry cleaning solvent as necessary to soften and
remove carbon or hardened oil deposits. Dry with compressed air.
2
Inspect crankcase for any cracks, discoloration, distortion, rust, corrosion, or other damage. If crankcase is
cracked, distorted, overheated, seriously rusted or corroded on machined surfaces, or exhibits other serious
damage, replace crankcase.
3
Inspect two studs (9), two studs (10), and two studs (11) for thread damage. If damaged, replace studs.
ASSEMBLY:
1
Lubricate new joint (8) with lubricating oil and install on oil drain plug (7). Install oil drain plug.
2
Install cylinder pin (6).
3
Lubricate new preformed packing (5) with lubricating oil and install on oil fill cap (4). install oil fill cap.
4
Lubricate new preformed packing (3) with lubricating oil and install on dipstick (1). Install oil dipstick in crankcase
(2).
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