TM 5-3895-376-14&P
5-15. CAMSHAFT MAINTENANCE INSTRUCTIONS - Continued
3.
Apply light coat of lubricating oil to the preformed
CLEANING
packing (4) and install on camshaft (2), seating
fully against shoulder of camshaft.
WARNING
4.
Turn gear cover so inside of cover is up. Support
P-D-680, Type III, is moderately toxic to
the gear cover and place a sleeve under the in-
the skin, eyes and respiratory tract;
ner race of the ball bearing (3).
avoid prolonged exposure. Skin and
eye protection is required. Good ventila-
5.
Using arbor press, press the camshaft (2) into the
tion is required. Do not use near open
bearing (3), seating fully to the shoulder of cam-
flame or excessive heat. Flash point is
shaft.
200F (93.3 C).
6.
Install retaining ring (1) with snap ring plier.
Clean all parts in dry cleaning solvent and dry
1.
thoroughly.
7
Install the gear cover (Para. 5-14)
NOTE
Follow-on tasks Include: Service the en-
INSPECTION
gine.
1.
Visually inspect the camshaft (2) for scoring on
bearing surfaces at both ends and on surfaces of
the three cam lobes. Replace a camshaft that is
scored in any way.
Using vernier caliper, measure diameter of the
2.
camshaft outside of the retaining ring groove. Re-
place camshaft if diameter is less than 1.368 in.
scored in any way.
Using vernier caliper, measure diameter of the
3.
camshaft outside the camshaft gear. Replace
camshaft if diameter is less than 0.860 in.
(21.860 mm)
4.
Inspect teeth of the camshaft gear for scoring or
excessive wear. Smooth edges to teeth is accept-
able. If camshaft gear requires replacement, no
tify your supervisor.
INSTALLATION
1.
If shaft pin (5) was removed, install into bore in
camshaft (2) seating below surface on both sides.
2.
Install the ball bearing (3) into gear cover with ar-
bor press and a 60mm O.D. w/34 mm pilot press-
ing rod. Seat bearing fully to the base of the bore.
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