ENGINE
EE022
Fig
EE
18
Ground
test
of
armature
5
Check
the
armature
for
short
circuit
by
placing
it
on
an
armature
tester
placing
a
hack
saw
blade
over
the
armature
core
and
by
rotating
the
armature
If
the
saw
blade
vibrates
armature
is
short
circuited
EE023
Fig
EE
19
4
rmature
test
for
short
circuit
6
Check
the
armature
for
continuity
by
placing
probes
of
a
tester
on
two
segments
side
by
side
If
the
tester
shows
no
conduction
the
circuit
is
open
Over
runnmg
clutch
assembly
Check
the
over
running
clutch
for
operation
and
replace
if
the
clutch
is
defective
due
to
slippage
or
dragging
Inspect
the
pinion
assembly
and
sleeve
Slceve
must
slide
freely
along
the
armature
shaft
spline
I
f
damages
are
found
or
there
is
a
resistance
while
sliding
replace
Inspect
the
pinion
teeth
for
excessive
rubbing
and
replace
as
required
Check
the
flywheel
ring
gear
also
for
damage
and
wear
Testing
brush
holder
for
ground
Place
one
test
probe
of
a
circuit
tester
on
to
the
rear
cover
and
the
other
on
to
the
positive
side
brush
holder
If
the
tester
shows
conduction
the
brush
holdcr
is
shorted
to
ground
Replace
the
insulator
or
brush
holder
od
l
Fig
EE
20
GTound
test
of
bTush
holder
Pinion
case
bearing
metal
Inspect
the
bearing
metal
for
wear
and
sidc
play
If
the
clearance
between
the
bearing
metal
and
the
arma
ture
shaft
is
mOTe
than
0
2
mm
0
0079
in
replace
the
metal
Install
a
new
bearing
and
adjust
the
clearance
to
0
03
to
0
10
mm
0
0012
to
0
0039
in
Install
the
bearing
metal
so
that
the
end
of
the
bearing
metal
is
flush
with
gear
case
end
plane
Magnetic
switch
assembly
Inspect
the
magnetic
switch
contact
surface
If
the
contact
surface
is
rough
replace
Replace
the
pinion
sleeve
spring
if
weakened
When
inspecting
the
series
coil
apply
voltagc
8
to
12V
between
Sand
M
terminals
The
series
coil
is
normal
if
the
plunger
is
attracted
When
inspecting
the
shunt
coil
connect
the
S
terminal
M
terminal
and
switch
body
as
shown
in
Figure
EE
21
With
the
plunger
attracted
open
the
M
terminal
The
EE
S
