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Tractors,
Lawn
and
Garden
-
110
and
ll2
Electrical
System
40
SM-2059-(Apr-67)
Charging
System
15-13
VOLTAGE
REGULATOR
"4
• •
"'
•
~
----
-."
-::--.---
----
~
i i
1 -
Cov
er
2 -
Cov
er Sc
rew
(2
used
3 -
Insulating
Washer
(2
used)
4 -
Go
ske
t
5 -
Spring
6 - R
ela
y
Screw
7 -
Regulating
Screw
8 -
In
s
ulating
Washer
9 - T
ermi
nal
Screw
(4
used)
10 -
Terminal
Clomp
(4
used)
11
-
Regulator
Contact
12
-
Bushing
13
-
Lock
Washer
14
-
Contact
Screw
(2
used)
15
-
Re
sisto
r
16
-
Armature
S
crew
(2
used)
17
-
Armature
Fi
g.
23-Exploded
View
of
V o
ltage
Regu/otor
Usually,
if
a
field
coll
is
open
or
Shorted
in-
ternally,
it
must
be
r
ep
laced
since
it
is
difficult
to
repair
such
a
defect.
Field
co
ils
can
be
removed
from
the
fi
e
ld
frame
most
easily
by
the
use
of
a
pole
shoe
screwdriver.
This
tool
permits
easy
loosening
and
removal
of
the
pole
shoe
SCrews
so
that
the
pole
shoes
and
field
coils
can
be
taken
out
of
th
e
field
frame.
When
loos
ening
the
pole
shoe
screws,
it
is
also
advisable
to
use
a
po
le
shoe
spreader,
since
this
prevents
distortion
of
the
field
frame.
Th
e
pole
shoe
screwdriver
and
spreader
should
also
be
used
when
reass
emb
ling
the
field
coils
and
pole
s
hoes
into
the
field
frame,
Figure
24.
Careful
assembly
is
necessary
to
prevent
shorting
'
or
grounding
of
the
field
coils
when
pole
shoes
are
tightened
into
place.
NOT
E:
Be
sure
to
polarize
ge
nerator
as
ex
-
plained
on page 15-18.
In
many
cases,
regulator
trouble
can
be
elim-
inated
by a
simple
cleaning
of
the
contact
points,
plus
some
possible
readjustm
e
nt.
Th
e
points
should
b e
cleaned
with
a
spoon
or
riffle
file.
Never
use
emery
cloth
or
sandpaper
to
clean
th
e
contact
points.
The
current-voltage
unit
by
its
action
pro-
tects
the
electrical
system
from
high
voltage
and
prevents
excessive
charge
rat
es
to
a
fully
charged
battery.
Before
removing
regulator,
disconnect
bat-
t e
ry
ground
cable
at
battery
to
prevent
injur"y
or
damage
to
system
from
sparks.
Always
i-
dentify
leads
with
a
piece
of
tap
e.
This
will
as-
sure
connecting
proper
lead(s)
to
th
e
ir
respec-
tive
terminal
on
the
voltage
regul
ator.
Never
set
th
e
regulator
outside
specified
limits.
Always
ref
er
to
speCifications.
Always
make
sure
that
the
rubber
g'asket
is
in
place
and
compressed
when
replacing
cover.
The
gasket
prevents
entrance
of
moisture,
dust,
and
oil
vapors
which
might
damage
the
regulator.
CAUTION:
NEVER
use
a
regulator
desIgned
to
be used
with
a
positive
grounded
battery
.
After
any
generator
or
regulator
tests
or
adjustments.
the
genera
tor
should
be
polarized
to
avoid
damage
to
eq
Ui
pme
nt,
page
15-18.
The
cutout
relay
requires
three
checks
and
adjustments:
air
gap,
pOint
opening
and
clOSing
voltage.
The
air
g'a
))
and
point
opening
adjust-
ments
are
made
with
the
battery
disconnected.
The
current-voltage
unit
requires
two
checks
and
adjustments:
a
ir
gap
and
voltage
se
ttin
g.
Litho
in
U.S.A.