5-14. GEAR COVER MAINTENANCE INSTRUCTIONS - Continued
Remove two capscrews (1), copper washers (2),
and cover plate (3) with gasket (4). Discard the
10. Remove drain plug (5) and copper washer (6).
11. Remove two capscrews (7), copper washers (8),
and drain flange (9) with gasket (10). Discard the
12. Remove six capscrews (11 and 12) and pull the
gear cover (13) from the engine housing.
It may be necessary to tap on the gear
cover with a plastic hammer to loosen the
cover. Should the cover catch on internal
parts, Cranking the engine slightly will free
13. Remove gasket (14) and discard.
14. Remove the camshaft assembly and camshaft
Clean any other removed components/parts in ac-
cordance with their respective maintenance in-
15. Remove the governor control lever and shaft
Visually inspect gear cover (13), cover plate (3),
and drain flange (9) for cracks, damage to thread
taps in cover and flange, or other damage.
P-D-680, Type Ill, is moderately toxic to
Inspect threaded fasteners for stripped threads or
the skin, eyes and respiratory tract;
other damage. Replace defective fasteners.
avoid prolonged exposure. Skin and
eye protection is required. Good ventila-
tion is required. Do not use near open
Roll pins (15) may remain with the engine
flame or excessive heat. Flash point is
housing or come off with the gear cover.
200° F (93.3° C).
Clean the gear cover (13), cover plate (3), and
Inspect roll pins (15) for looseness or bent condi-
drain flange (9) with dry cleaning solvent and dry
tion. Replace a loose or bent roll pin.
Measure inside diameter of the sleeve bush-
Ensure that all gasket material is removed from
ing (16) for wear with a vernier caliper. Replace
covers and mating surfaces.
sleeve bushing if inside diameter exceeds 0.6358
in. (16.150 mm).
Clean all threaded fasteners with dry cleaning sol-
vent and dry thoroughly.