13 MI-1064
WICO MAGNETO COIL TEST
The coil test specifications for the Wico MA-60 and
the Graham tester are listed below:
MA-60 SPECIFICATIONS
Operating Secondary
Amps. Continuity
2.0 40-60
GRAHAM SPECIFICATIONS
Coil
Maximum
Secondary
Maximum
Primary
Coil
Index
Minimum
Coil Test
Maximum
Gap Index
X13000
8000
.9
60
16
60
FAIRBANKS-MORSE COIL TEST
It is recommended that a new coil be selected from
stock and used as a master coil to calibrate the tester.
If the tester is set up with a
“good-bad”
range or
“variable spark discharge gap”
, it can be used with
whatever primary input is required to bring it into the
desired range.
If the coil does not test to specification, the flywheel
will have to be removed to replace the coil.
The
high tension wire
can be removed from the coil by
rotating the wire several turns in the counter-clockwise
direction.
ELECTRICAL EQUIPMENT
ELECTRICAL WIRING CIRCUITS
NOTE:
Beginning with engine serial No. 3989524,
the standard wiring circuits of all
12 volt
electrical
equipment for Model TR-10D is
negative ground po-
larity,
instead of the previously furnished positive
ground. All Model TRA-10D engine motor-generators
are
negative ground
.
The wiring diagram,
Fig. 13
(magneto ignition), il-
lustrates a
negative ground
circuit. If polarity of
motor-generator is for a positive ground circuit (see
parts list for polarity according to the part number), termi-
nal connections at ammeter and battery are just re-
versed from those illustrated.
Battery ignition engines,
in which the low battery vol-
tage is transformed to high voltage by an ignition
coil, are wired in accordance with
Fig. 14
. This type
ignition system has always been wired
negative
ground. Battery is not furnished by Wisconsin Motor
Corporation.
MOTOR-GENERATOR OPERATING INSTRUCTIONS
The combination
motor-generator
functions as a crank-
ing motor when the
starting switch
is closed. When
the switch is open and the engine is running, the
unit will function as a generator. The generator out-
put and circuit voltage for the various battery and
operating requirements are controlled by a
current-
voltage regulator
mounted to the generator.
The total electrical output of this
12 volt
combination
motor-generator is
10 amperes
. However, all of the
current is not taken off of a single terminal. There
are
two terminals
on the current-voltage regulator,
illustrated in
Fig. 15
, for distributing the generator
output. One terminal is marked
‘BAT’
and a wire is
connected from it to the battery, thru an
ammeter
.
The
other terminal marked
‘L’
is for a battery ignition
system, if applicable, and for operating lights or any
other customer accessory. For a continuous load, not
more than
5 amps
should be taken from this terminal if
engine has a magneto ignition. With battery ignition,
maximum draw should be
3 amps
, since
2 amps
is re-
quired for the ignition system. Current from the
‘L’
terminal is continuous and is not affected by the regu-
lator windings. Whereas, the current to the
‘BAT’
terminal goes thru the regulator windings and is con-
trolled to keep the battery charged.
The ammeter in this circuit indicates only the current
going into the battery to keep it charged and does not
indicate the total generator output.
If it is necessary to
check the amount of current coming from the
‘L’
terminal it will be necessary to put a second ammeter
Содержание Air Cooled TR-10D
Страница 6: ...MI 937 2 4 Fig 1 289860C TAKE OFF rear and LEFT HAND SIDE VIEW of ENGINE...
Страница 7: ...5 MI 938 2 FAN END front and RIGHT HAND SIDE VIEW of ENGINE...
Страница 8: ...MI 939 2 6 SECTIONAL VIEWS OF ENGINE...
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Страница 29: ...PARTS FOR ENGINE MODELS TRA 10D AND TR 10D...
Страница 30: ...PARTS FOR ENGINE MODELS TRA 10D AND TR 10D...
Страница 31: ...PARTS FOR ENGINE MODELS TRA 10D AND TR 10D...
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Страница 46: ...WISCONSIN MOTOR CORPORATION MILWAUKEE WISCONSIN 532466 PRINTED IN U S A...