3.
After
1600
hours
operation
check
the condi-
tion
of
the brushes. Min. brush height: .240
inches
(6
mm).
VOLTAGE REGULATOR
If the voltage regulator is
faulty
replace
it
with
a
new one.
BATTERY CHARGE WARNING LIGHT RELAY
The alternator warning relay (Fig.
0.1/15)
is
used
to
energize the alternator warning
light
should
the battery charging system fail.
Fig.
0.111
illustrates
the associated wiring
diagram.
For warning relay data see under
Specification.
If
on
inspection
the
relay is found
not
to
be
operating
satisfactorily,
it
should
be replaced as
a unit.
FIG. D.l/15 BOTTOM VIEW OF ALTERNATOR
WARNING RELAY
(Relay
identification
markings arrowed)
6.
Terminal
85;
7.
Terminal
86;
8.
Terminal 30/51;
9. Terminal
87
Battery charge warning
light
relay
specifications
Description
Excitor
winding
resistance
Contact
O_Qeniri_Q_
voltage
Data
27
.....
31
Ohm
4.0
...;..
5.7
v
TROUBLE SHOOTING THE BATTERY CHARG·
lNG SYSTEM ON THE TRACTOR
-with
the
starting
and
lighting
switch
in
position
I,
the
warning
lights
on.
Charging system
problems
are
pointed
out
through the panel-mounted warning
light.
When
the alternator
is
working
properly the warning
light
will act as follows:
-when
the engine
is
started, the warning
light
goes
out
and
will
not
go on if the engine
is
accelerated.
If a problem exists, then
it
will
show up as
quoted
in the trouble-shooting guide below:
Trouble
A.
With the lighting and starting
switch in position 1 (travel posi-
tion) the warning light goes on. As
the engine is started, the warning
lamp stays lighted even if the
engine is accelerated, or goes out
and in again at certain alternator
speeds and at certain current
ab-
sorbtion levels by the tractor
equipment.
Possible cause
1.
Voltage regular fuse
(8
A)
broken
Offa
I
2.
Broken
off
circuit
between
voltage regulator plus-terminal
and starting switch or broken off
connections between the
OF-
terminals of the alternator and the
voltage regulator.
3.
Voltage regulator does not
work. First stage contacts oxidized
or dirty. Stuck contacts
of
the
se-
cond stage.
4.
Defective battery charge warn-
ing light relay.
Electncal
system
. 196
Location and remedies
1.
Locate
and
eliminate
the
short
circuit
which
has burnt
the
fuse and
check
the
instruments
and
components
of
the charging
system protected by
this
fuse,
that are: voltage regulator, alter·
nator
exciting
coil
and the cor·
responding
connections.
Then.
replace the
burnt
fuse.
2.
Check
continuity
of
circuits,
replace any broken-off cables
and correct
junction
detects
if
any. If
trouble
persists, it
is
possible
to
locate it by checking
as
specified
to
the
bottom
of
this
table.
3.
Change
the
voltage regulator
and
eliminate
the troubles.
To Next Page
Loading...
Need help?
General
