FIGURE 25. GOVERNOR LINKAGE
If one or more cells are low on water, add distilled
water and recharge.
Keep the battery case clean and dry. An accumulation
of moisture will lead to a more rapid discharge and
battery failure.
Keep the battery terminals clean and tight. After
making connections, coat the terminals with a light
application of petroleum jelly or grease to retard
corrosion.
VACUUM
BOOSTER
Use a fine wire to clean the small hole in the short
vacuum tube which.fits into the hole in the top of the
engine intake manifold (Figure 26). Do not enlarge
this hole. If there is tension.on the external spring
when the set is operating at no load or light
load,
it
may be due to improper adjustment, a restricted hole
in the small vacuum tube or a leak in the booster
diaphragm or gasket.
Replace with new gaskets if necessary. A leaky or
broken gasket can cause starting problems.
GOVERNOR
LINKAGE
The governor controls the engine speed by opening
or closing the throttle according to the load to the set.
Every 50 hours of operation, check for freedom of
movement through its entire travel. Clean the plastic
joints (Figure 25). DO NOT LUBRICATE!
CLEAN
HOLE
FIGURE 26. VACUUM BOOSTER
COOLING
SYSTEM
The generating set is cooled by a flywheel blower fan
which pulls air through the generator and over the
cylinders and cooling fins. The air path is directed by
sheet metal shrouds and plates. The shrouds and
plates must always be installed properly so the unit
does not overheat.
Check and clean the cooling fins at least every 100
hours of operation. Remove any dust, dirtoroil which
may have accumulated. Check the air inlet and air
outlet for buildup of dirt, etc.
GENERATOR
MAINTENANCE
The generator normally requires little care other than
a periodic check of the brushes, commutator and the
collector rings. Check the brushes every 500 hours of
operation to be sure they can easily move in their
holders. Remove any dust or dirt that could prevent
movement.
BATTERY
CHECK
Check the specific gravity of the battery with a
hydrometer. A fully charged battery provides a
reading of 1:240 to 1.270 at 77°F.
Check the brushes for wearas illustrated in Figure 27.
It is not necessary to remove the brush holder unless
the brushes and/or brush springs must be replaced.
See Figure 28. Always use the brushes recommended
in the Paris Catalog of this manual. Never substitute a
brush which may appearto bethesame— it may have
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