Piper Comanche PA-24 Service Manual page 504

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 P L e