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Checking Water
Lever
G
The level of
the
electrolyte should
be
checked periodically,
and
distilled water
added to bring it up to correct
level. Do not
overfill as the electrolyte will
spill onto top
of battery
through the
vent
plugs during op-
eration.
The level
of e 1 e
ctr
o 1 y t e
should
be
maintained
to the bottom
of
the filler tubes.
NaTE:
Always use distilled water
or
rain water in the
battery.
Fig.
66 - Alternator
Alternator
(See Fig. 66)
The
alternator
on the
MF
135 Tractor is
the
latest
advancement
in providing
electrical
power to supply the demands of electrically-
operated assemblies found on
the Tractor.
The following precautions
must be observed
to ensure
maximum life
and
performance
of
the alternator.
1. When installing a
battery,
always
make absolutely sure
the
ground
polarity
of
the battery and the ground
polarity
of
the al-
ternator are
the
same.
If
a
battery of the
wrong polarity is connected
into the charg-
ing system, or if the
battery is reversed
when installing it, the battery
is directly
shorted
through the
diodes.
Consequently,
the diodes
and
wiring are endangered
by
high current flow.
Burned
wiring
harness
and burned "open" diodes
probably
will
re-
sult.
2. When connecting a booster or "slave"
battery, make certain to connect the nega-
tive battery terminals together and the pos-
itive battery terminals together. Failure to
observe this precaution will result in the
same
damage as just described previously.
3. When connecting a charger to the bat-
tery,
connect the charger positive lead to
the batterypositive terminal and the charger
negative
lead to battery negative terminal.
Failure to follow this procedure will result
in the same damage as described in the first
precaution.
4.
Never operate the alternator on open
circuit.
With no battery
or
electric load in
the circuit (open circuit), the alternator
can
build up high voltages which could be ex-
termely dangerous to anyone who might ac-
cidentally touch the alternator battery termi-
nal.
Before making tests or" on-the-Trac-
tor" checks, make sure that all connections
in the circuit are tight and secure.
5. Do not
short
across or ground any of
the terminals on the alternator or regula-
tor.
Any
artificial circuit set up by pur-
posely grounding
or
shorting any
of
the al-
ternator or regulator terminals can cause
serious electrical malfunctions that might
endanger components of the electrical sys-
tem.
6. Do not attempt to polarize the
al-
ternator.
Alternator polarizing is not nec-
essary,
since
the voltage developed within
the alternator is of both polarities and the
diode rectifier automatically controls the
di-
rection of current flow.
It is of vital im -
portance, as discussed in the first precau-
tions, that the battery ground and the alter-
nator ground be of the same polarity for di-
ode protection.
Fan Belt (See Fig. 67)
CED
Adjust
the fan belt tension
so
as to
maintain 1/2 to 3/4" deflection between the
widest
span
area.
SMV Emblem and Bracket -
See Page 54
Safety Flashing Amber Light
(See Fig. 68}
The use of a flashing light is acceptable
in most areas.
However, some areas may
- 46 -
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