Piper Cherokee Six Service Manual page 418

7A -24. INSTALLATION OF FUEL-AIR
BLEED NOZZLE.
a. Install nozzle and torque 60 inch
pounds.
CAUTION
Start nozzles and line coup-
lings by hand to prevent the
possibility of cross -threading.
b. Connect fuel line to nozzle.
c. Install engine cowl.
7A-25. IGNITION SYSTEM MAINTEN-
ANCE.
Figure 7A-7. Fuel-Air
7A-26. MAGNETO (200 AND 1200 SERIES).
Bleed Nozzle
CAUTION
Ascertain that the primary circuit of both magnetos
is grounded before working on the engine.
7A-27. INSPECTION OF MAGNETO.
a. After the first 25 hour and 50 hour periods,
and periodically
thereafter,
the contact assemblies should be checked.
Examine the points for excessive
wear or burning. Points which have deep pits or excessively burned areas should
be discarded.
Examine the cam follower felt for proper lubrication.
If neces-
sary, points can be cleaned by using any hard finished paper.
Clean breaker
compartment with dry cloth.
b. If engine operating troubles develop which appear to be caused by the igni-
tion system, it is advisable to check the spark plugs and wiring first before work-
ing on the magnetos.
c. Should the trouble appear definitely associated with the magneto, the most
effective measure is to install a replacement
magneto which is known to be in
satisfactory condition and send the suspected unit to the overhaul shop for test
and repair.
d. Should this not be possible,
a visual inspection may disclose the source of
trouble. Remove the harness outlet plate from the magneto.
Inspect for the
POWER PLANT
Revised: 7/28/75
PIPER CHEROKEE SIX SERVICE MANUAL
2G22