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BATTERIES
Check daily, keep filled 3/8" above separator
plates.
Keep all open flame away from battery
as explosive gas is liberated when bat-
tery is being charged or discharged.
The battery supplied with yuul' tractor has a lead
washer type valve in the filler tube to prevent
over filling. :'-rever add anything to the battery
solution except DISTILLED OR RAIN WATER.
Boiled water will not do.
The supply of water
should be kept in clean covered vessels of glass
1
china, rubber or lead.
The need for frequent addition of water to bat-
tery, indicates the charging rate maintained is
too high. In cold weather, add water only imme-
diately before running the engine so that the
charging will mix the electrolyte and water to
prevent fr eozing.
A fully charged battery will 110t freeze in cold
temperatures, but if only partly charged, will
freeze and be ruined at much higher ternpera-
tures.
Weekly readings of each battery cell
should be taken with a battery hydrometer. The
readings indicate as follows!
1 .260 full charge, 1.225 half charge, 1.150 dis-
charged.
When taking the readings, return the electrolyte
solution to the cell from which it was taken. The
specific gravity of a fully charged cell should
be 1.260.
Keep the battery clean by using a stiff bristle
brush. Do not use a metal brush. If terminals
are corroded or if the battery is acid soaked
J
wash with a soda, mix 1/4 lb. of baking soda
to one quart of water.
The vent plugs must be
kept in place when cleaning battery.
After washing battery, check the gas escape
holes in vent caps making sure they are open. If
battery is removed from tractor, disconnect the
positive ground terminal first.
When rein-
sta11ing
be sure the ground cable is installed last,
and connected to the positive terminal of bat-
tery.
The battery retainer should be in place and
tightened snugly, to prevent battery from being
damaged by vibration. Any non-insulated metal
across the top of battery will short circuit. and
22
FIG. 28 (Spark Plug Adjustment)
cause it to lose its charge.
In the event the tractor is not in use for a period
of tilne,
it
is advisable to remove the battery,
have it fully charged and stored in a basement or
some similar place, where the temperature will
be as low as possib1e. but above freezing.
SPARK PLUGS
The spark plugs should be removed every 200
hours of operation, c1eaned and the pOints re
spaced. The point gap should be set at
*
025
11 •
If spark plug gap is set too wide it . . . . vill induce
engine to miss under load. If set too clo se the
engine will not idle properly. Adjust the point
gap by bending the outside electrode.
Never
bend the center electrode.
CAUTION: Failure to service spark plugs as
recorrn::nended causes increased fuel consumption
and lack of power. Always use spark plugw rench
when removing plugs to prevent cracking in-
sulator.
'irVhen replaCing plugs make certain
gaskets are in good condition and the plugs are
tight.
The tractor is equipped with plugs suitable for
average operating conditions. ·When necessary to
replace plugs,
it
may be advisable to use a heat
range according to your operating condition.
Incorrect plugs are shorter lived and cause poor
engine performance.
Use plugs specified, or
equivalent heat range. Auto -Lite AG-SA, AC-
45XL or Champion N-8.
Spark plugs and cables should be maintained in
good condition and free of dirt and grease.
It
may seem unwise to discard a spark plug that
has operated successfully for a long period of
time: but poor plugs cause hard starting and ex-
cessive fuel consumption.
For this reason it is
advisable to change plugs regularly.
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