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Page Title:
TABLE 3-3. PERIODIC INSPECTION REQUIREMENT (cont) |
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 TM 55-4920-373-14&P
TABLE 3-3. PERIODIC INSPECTION REQUIREMENT (cont)
PERIODIC
REQUIREMENT
ITEM
INSPECTION
Tighten any loose bolts and
Valve mechanism -
retest. If low compression or
(cont)
a variation in compression per-
sists, the trouble lies with the
cylinder head gasket, valves,
or piston rings. Correct all
deficiencies
Inspect the spark plugs for
100 hrs
Spark plugs
looseness, bad connections,
and dirty or broken insulators
Replace damaged spark plugs.
Clean dirty plugs and set the
gap to 0.0300 inch
Inspect the ignition magneto
100 hrs
Magneto
for loose mounting bolts and
wiring connections. Correct
any deficiencies noted
Remove the end cap and inspect
the distributor cap for cracks,
and corroded terminals.
Examine the breaker point gap.
The correct gap is 0.015 inch
at full separation of points
Inspect the mounting of the
100 hrs
Starter motor
starting motor for loose con-
nections. Examine the brushes,
brush holders and springs.
Inspect the commutators for
dirt and scoring
Tighten loose mounting bolts
Replace starter brushes worn
to one half their original length
Check operation of alternator
100 hrs
as specified in Chapter 4,
section II, paragraph 4-6
Inspect for proper operation,
100 hrs
Voltage Regulator
tight connections, and secure
mounting. The regulator should
allow an appreciable charge to
go into the battery after the
starter is used. After the
battery is fully charged, the
ammeter should read only
a slight charge
Tighten loose mounting nuts and
connections
Adjust or replace a defective
regulator
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