Filter
Top Products
40
Electrical
System
Tractors,
Lawn
and
Garden
- 110
and
112
15-12
Charging
System
SM-2059
-(A
pr-67)
Fig.
19-Undercu//ing
Mica
U
tests
indicate
that
the
armature
is
suitable
for
service,
turn
down
commutator
and
undercut
mica
with
a
lathe
or
by
uSing
a
tool
as
shown
in
Fi6rures
18
and
19.
Use
a
strip
of 00
sandpaper
to
polish
tbe
commutator.
Do
not
use
emery
cloth
.
If
the
commutator
is
worn,
dirty,
out
of
round,
has
high
insulation
or
if
leads
are
re-
soldered
in
the
riser
bars.
the
commutator
should
be
turned
down.
Follow
tool
manufac-
turer's
instructions
.
End
Frame
B e
arings
Fig.
20
-
/ns/olling
Bearing
in
End
Froll,e
Press
bearing- in
end
framE'
as
shown
in
Fi[!;ure 20.
Bearing-
must
be
flush
with
interior
of
(
~
nd
fral1le.
Field
Cuils
Ir
i
\t
t.
\I
F ig .
22
- ln5101l I
ng
F,,,fd
C o
rl
s
The
field
coils
should
be
checked
for
grounds,
opens
or
shorts
as
pre
vi
0
us
1y
explained.
Grounded
field
coils
may
som
e
times
be
repaired
by
removing
them
so
they
can
be
reinsulated.
Care
must
be
used
to
avoid
excessive
bulkin
es s
when
applying
new
insulation
since
this
might
cause
the
pol
e
shoe
to
cut
throug-h
and
cause
another
g
round
when
the
coils
ar
e
reinstalled
.
Litho
in U.
S.
A.