TEST
LEADS
Testing for a Ground
2-
Obtain a test
lamp or continuity
me-
ter.
Make contact
with one probe
lead on
the armature
core and the other
probe lead
on the commutator
bar.
If the lamp lights,
or the meter indicates
continuity,
the arma-
ture
is grounded
and
MUST
be
replaced.
Checking the Commutator Bar
3- Check
between
or check
bar-to-bar
as shown in the
accompanying
illustration.
The
test
light
should
light,
or
the
meter
should indicate
continuity.
If the commuta-
tor
fails
the
test,
the
armature
MUST
be
replaced.
Turning the Commutator
4-
True the commutator,
if necessary,
in
a lathe.
NEVER
undercut
the mica because
AC MILLIAMMETER
PRESTOLITE STARTER
6-41
CORRECT
INCORRECT
Ci)
the
brushes
are harder
than the insulation.
Undercut
the
insulation
between
the
com-
mutator
bars 1/32" to the full width of the
insulation
and flat at the bottom.
A triang-
ular groove
is not satisfactory.
After
the
under-cutting
work is completed,
clean
out
the slots carefully
to remove
dirt and cop-
per dust.
Sand the commutator
lightly with
No. 00 sandpaper
to remove
any burrs left
from the undercutting.
Check the armature
a second
time
on the growler
for possible
short circuits.
Positive Brushes
5-
Notice
how the positive
brush lead is
attached
to the terminal
on the end of the
frame.
This is the same terminal
to which
the
heavy battery
cable
is attached.
The
terminal
may be removed
from the frame.
Pull the terminal
free of the frame.
Obtain
an ohmmeter.
Connect
one test
lead of an ohmmeter
to the
brush and the
other
test
lead to the terminal.
Continuity
should
be indicated
on the
ohmmeter.
If
continuity
is not indicated,
the brush must
be replaced.
The brush
and terminal
are
sold as an assembly,
eliminating
the neces-
sity for soldering.
Negative Brushes
6-
The complete
terminology
for Presto-
lite negative
brushes is:
Field Coil --Nega-
tive Brush.
Содержание 4906B 4HP 1969
Страница 5: ......
Страница 85: ...3 44 POWERHEAD EXHAUST COVER I LEVER Exploded drawing of a 5 5 hp powerhead 1956 60 principle parts identified...
Страница 87: ...3 46 POWERHEAD Exploded drawing of a 7 5 hp powerhead 1956 58 with principle parts identified...
Страница 88: ...CYLINDER BLOCK 3 47 HEAD GASKET RING...
Страница 89: ...3 48 POWERHEAD HEAD BYPASS COVER Exploded drawing of a 10 hp powerhead 1956 63 with principle parts identified...
Страница 90: ...CYLINDER BLOCK 3 49 THERMOSTAT EXHAUST COVER The...
Страница 137: ...4 46 FUEL LEVER AND LOW SPEED...
Страница 153: ...4 62 FUEL Exploded view of a pressure tyoe fuel tank with major parts identified...
Страница 157: ...4 66 fUEL...
Страница 177: ...5 18 IGNITION FLYWHEEL Exploded drawing of a typical magneto system Only one coil and set of points is shown...
Страница 271: ...8 12 LOWER UNIT PROPELLER Exploded drawing of the Weedless lower unit gear case with major parts identified...
Страница 285: ...8 26 LOWER UNIT Exploded drawing of a lower unit with a window for access to the shift connector...
Страница 412: ...A 16 APPENDIX Wire Identification 33 hp with Generator 1965 67...
Страница 413: ...APPENDIX A 17 o C...
Страница 414: ...Wire Identification 33 hp with Generator 1969 70...
Страница 415: ...APPENDIX A 19 Wire Identification 35 hp 1957 59...
Страница 416: ...A 20 APPENDIX Wire Identification 40 hp Standard Shift with Generator 1960 66...
Страница 417: ...APPENDIX A 21 UJ cc b Wire Identification 40 hp Standard Shift with Generator 1967 68...
Страница 418: ...A 22 APPENDIX ee I U Vl Z Z o U I I Wire Identification 40 hp Standard Shift With Generator 1969 10...
Страница 419: ...APPENDIX Wire Identification 40 hp Electric Shift with Generator 1961 66 A 23...
Страница 420: ...A 24 APPENDIX C 00 Wire Identification 40 hp Electric Shift with Generator 1967 68...
Страница 421: ...Wire Identification 40 hp Electric Shift with Generator 1969 70...
Страница 422: ...NOTES NUMBERS...