5-21. CRANKCASE (ENGINE HOUSING) MAINTENANCE INSTRUCTIONS
This task includes:
Tool Kit, General Mechanics
Caliper, Vernier; item 6, Appx F
Press, Arbor (Puller Kit and Press Frame); item 21,
Sleeve, Press: item 31, Appx F
Solvent, Dry Cleaning; item 9, Appx E
Bearing, Main Front (1)
Compactor set on level ground in a protected area.
General Safety Instructions
Observe all WARNINGS and CAUTIONS
If not already removed, remove the crankshaft as-
sembly (Para 5-20).
Remove the oil pump (Para. 5-18)
Remove straight threaded plug (1) and flat cop-
per washer (2) from engine housing (3).
Remove tapered pipe plug (4) from engine hous-
Remove studs (5 and 6) only if replacement is re-
P-D-680, Type III, Is moderately toxic to
the skin, eyes and respiratory tract;
avoid prolonged exposure. Skin and
eye protection is required. Good ventila-
tion is required. Do not use near open
flame or excessive heat. Flash point is
200° F (93.3 C).
Clean all parts in dry cleaning solvent and dry
Ensure that oil galleys are clean and drained of
dry cleaning solvent.