PIPER COMANCHE SERVICE
MANUAL
FIGURE 7A-22. IGNITION SYSTEM RETARD BREAKER MAGNETO INSTALLATION
CAUTIO!\
When
checking ,·ibrator
action.
stand
clear
of
propeller
or
remO\e
spark
plug termInals
7 A-75
Harness Assembly.
7 A-76 Inspection Of Harness.
a.
Check
lead assemblies for nicks. cu ts. mutilated braiding. badly
worn
section
or
any
other
evidence
of
physical
damage.
Inspect
spark
plug sleeves for
chafing
or
tears
and
damaged
or stripped threads
on
coupling
nuts.
Check
compression
spring
to
see if it
is
broken
or
distorted. Inspect
grommet
for tears
Check all
mounting
brackets
and
clamps
to see
that
they are secure
and
not
cracked
b.
Using
an
ohmmeter.
bUller.
or
other
suitable low voltage device. check each lead for continuity. If
continuity
does
not exist. wire
is
broken
and must be replaced.
c.
Minor
repair
of
the harness assembly.
such
as
replacement
of
contact
springs. spring retainer
assemblies.
insulating
slee,es
or
of
one lead assembly.
can
be accomplished with the harness assembly
mounted
on
the
engine However. should repair require replacement
of
more
than
one lead assembly
or
of
a
cable
outlet
plate.
the harness
should
be removed
from
the engine
and
sent
to
an
o\erhaul
shop.
ISSUED:
8/18/72
2E2
POWER
PLe
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