Technical
Service
Inspection
Monthly
Weekly
ELECTRICAL SYSTEM-Continued
Battery. Inspect battery for cracked and leaky case, for loose
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holdown clamps, and for dirt and corrosion on top of battery.
Check for loose, corroded, or damaged terminals and
cables.
Check level of electrolyte.
Proper level is
approximately Vs to %/8 inch above the plates. Check
specific gravity, and record reading on DA Form 464.
Readings from 1.275 to 1.300 indicate a fully charged
battery. Readings of 1. 225 or below indicate battery should
be recharged or replaced.
Clean all dirt and corrosion off top of battery, posts, cables,
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and terminals. Replace damaged cables. Apply a thin film
of chassis grease over terminals. Add clean or distilled
water if needed to bring solution up to proper level. If
freezing temperatures prevail, battery must be charged for a
period long enough to mix solution thoroughly. Where
possible, water should be added just before beginning
operation. See that battery is securely mounted, that
fillercaps are tight, and that vent holes are open.
Generator and Starter. Inspect generator and starting motor for
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loose mounting bolts and wire connections.
Inspect commutators and brushes for excessive wear, dirt, and
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oil deposits. See if brushes are free in their holders and if
brush wires are secure. If brushes are worn to less than
one-half their original length, they must be replaced.
Tighten any loose mounting bolts and wire connections.
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Replace or free brushes, and clean commutators if
necessary.
Distributor. Inspect distributor cap and rotor for cracks, burned
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contacts, and corroded terminals. Correct point gap is 0.
020 inch.
Clean or replace distributor cap and rotor, and adjust breaker
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points if necessary. Replace points if necessary. Replace
points if they are badly burned or pitted.
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