Evinrude 4906B 4HP 1969 Owner's Manual page 220

Positive Brushes
7- The positive
always be identified as the brushes connect-
ed to the field coil.
Obtain an ohmmeter.
of the meter to the end of the brush and the
other lead to the terminal.
MUST indicate continuity
brush and the terminal.
cates any resistance,
brush and the lead to the positive terminal
solder connection. If the connection cannot
be repaired, the brushes
If the unit being tested has a double set of
positive brushes, repeat
other positive brush.
Move the test lead from the brush to a
good ground on the frame.
indicated, the field coil is grounded to the
case.
Negative Brushes
8- The negative
identified because the lead is connected to
the brush retainer as a ground to the frame.
Obtain an ohmmeter.
one lead on the negative
contact with the other lead on the starter
frame. If the meter
continuity, the brush or brush retainer is not
grounded to the frame.
If the unit being tested has a double set
of negative and positive brushes, move the
test lead from the one negative brush to the
other negative brush lead and again check
for continuity. If the meter does not indi-
cate continuity, the brush or brush retainer
is not grounded to the frame.
Check to be sure none of the soldered
connections are touching
brush or brushes can
Connect one lead
The ohmmeter
between the
If the meter indi-
check the lead to the
MUST be replaced.
the test for the
If continuity
brushes can always be
Make contact with
brush and make
does not indicate
the frame. The
fields would be grounded if the connections
is
make contact with the frame.
CLEANING AND INSPECTING
Clean the field coils, armature,
tator, armature
drive-end housing with a brush or compress-
ed air. Wash all other parts in solvent and
blow them dry with compressed air.
Inspect the insulation and the unsoldered
connections
breaks or burns.
Perform electrical
ed defective
cedures outlined earlier in this Section.
Check the commutator
spect the armature
for scoring.
Typical brush spring.
in
color, they must
DELCO-REMY STARTER
shaft, brush-end plate and
of the armature windings for
tests on any suspect-
part, according to the pro-
for run-out.
shaft and both bearings
If
the springs
be
replaced.
6-31
commu-
In-
have
turned blue