Alternator Coil Replacement - Johnson SKEE-HORSE 25-201R Service Manual

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7·17
DO NOT use a 110 volt test lamp to test diodes. Diodes are
checked with test meter selector in "OHMS" position ("HI OHMS"
on the Stevens Model AT -100). This is basically a continuity
test.
Disconnect all leads from rectifier assembly. Check a diode by con-
necting test leads to adjacent terminals on rectifier assembly and noting
the reading (see Figure 7-45). Reverse the test leads and again note
the reading. If both readings are very low, or if both readings are very
high, the diode is defective. A good diode will give one low reading and
one high reading.
Repeat the test procedure for the other diodes by connecting the test
leads between adjacent terminals.
If a test light is used, light should show with connections in one direc-
tion only. If lamp lights or fails to light in both directions, the diode is
defective.
Connect leads to correct terminals. See Figure 7-45, and wiring
diagram at end of manual.
ALTERNATOR COIL REPLACEMENT
a. Remove flywheel as described under "Magneto Removal".
b. Disconnect alternator coil lead (see Figure 7-14).
c. Remove alternator coil assembly.
d. Install and connect new alternator coil assembly. Make certain
that coil laminations are flush with bosses on fan housing.
e. Reassemble as described on page 7-7.
Figure 7-45