Preventive Maintenance
are rough or out of round, replace them. Inspect the
terminals for corrosion and loose connections and the
wiring for frayed insulation.
Item 16
Check the specific gravity of the electrolyte in each cell
of the battery every 100 hours or 3,000 miles (4 828
km). In warm weather, however, it should be checked
more frequently due to a more rapid loss of water
from the electrolyte. The electrolyte level should be
maintained in accordance with the battery manufac-
turer's recommendations.
Item 17
Lubricate the tachometer drive every 100 hours or
3,000 miles (4 828 km) with an all purpose grease at
t h e grease fitting. At temperatures above +30F
(-1C), use a No. 2 grade grease. Use a No. 1 grade
grease below this temperature.
Item 15
On A.C. alternators, the slip rings and brushes can be
Item 18
inspected through the end frame assembly. If the slip
Lubricate the throttle control mechanism every 200
rings are dirty, they should be cleaned with 400 grain
hours or 6,000 miles (9 656 km) with an all purpose
or finer polishing cloth. Never use emery cloth to clean
the slip rings. Hold the polishing cloth against the slip
rings with the alternator in operation and blow away
all dust after the cleaning operation. If the slip rings
Item 17
Item 20
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