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Ferguson Tractor TO-20 Operation and Maintenance Manual

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8LACK•16 GA.
2
RE0· 16 GA.
3
8LAClt· 12GA
8LACK• YELLOW TRACER: 16 GA.
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BLACK· RED TRACER· I& Gil.
6
BLACK· YELLOW TRACER • 12 GA
.
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GR.AV• 16 GA.
The electrical system consists of bat-
tery, coil, distributor, generator, spark
plugs,
starter,
voltage
regulator,
charge indicator light, ignition switch
and wiring. It must be kept in good
condition to eliminate hard starting
and electrical failures. Battery cables
are designed for 200 to 400 amperes,
but their capacity will be reduced by
loose, dirty terminals. Good ground
connections are essential between the
chassis and battery-starter and gen-
erator. The high-tension wires must
be kept in good condition to prevent
loss of spark. The remaining low-volt-
age system wiring should be regularly
inspected and conn·ections kept clean
and secure. Chafed insulation may cause a short.
Many owners will wish to add the Ferguson
Lighting Kit for night work as well as other
electrical equipment. Description of these and
other extra equipment will be found in the Acces-
sories Section, page 37.
BATTERY
13-plate, 6 -volt. Capacity: 80-ampere
hours. Cold weather reduces battery efficiency by
slowing
up
electrochemical
action. A fully
charged battery with 100% cranking power at 80
°
F. will drop to 40% cranking power at 0
°
F. (en-
gine requires
2Yz
times more cranking effort at
0
°
than at 80
°
).
Check battery as follows:
1. Cable corrosion. Keep cleaned and greased.
2. Cracked or broken cases. May allow escape
of solution.
3. Broken sealing compound.
4. Broken or cracked terminal posts.
20
Wiring diagram of Ferguson Electrical System
5. Freezing, due to partially discharged con-
dition.
6. Poor terminal condition. Keep clean witll
ammonia or baking soda.
7. Looseness, caused by vibration and heavy
jars. Keep well tightened to prolong battery
life.
8. Water level. Fill with distilled water to
cover plates. Do not overfill.
-
"Keep sparks and flames
away lrom
battery. Gas
� ()
from battery fluid is highly
'rt'
inflammable!"
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