Piper COMANCHE PA-24-180 Service Manual page 412

7B-19. Induction System Air Filtr.
7B-20. Removl Of Air Filr.
L
Remove the bottom cowl acces panel by loosenng the quarter run fateners.
b. Loosen damp and remove ur intake hose from filter box.
c.
Release the fseners and remove the air box.
d Remove the air ffter from the air box.
7B-21. Service Iructions.
a. The filter should be cleaned daily when operatng in dusty conditions and if any holes or ears are
noticed. the filter should be replaced immediately.
b. Remove the filter element and shake off loose din by tapping on a hard surface, being careful noc
to damage or crase the sealing ends.
CAUTION
Never wash the filter element in any liquid or soak in oil. Never attempt
to blow off dirt with compressed air.
7B-22. Installuion Of Air Filter.
a.
Plce air filter in ar box and instil on backing plate.
b. Secure box to plate with camloc fateners.
c. Install air intake hose on filter box and secure with clamp.
d. Install bottom cowl access place and secure with fasteners.
7B-23. Alternate Air Door. The alternae air door. located m the inducton system on the back side of the
injector air box. is to provide a source of air should there be an air stoppage through the filter system. The
following should be checked during inspection:
z. All door seals are ight and hinges secure.
b. Actuate the door to determine that it is not sticking or binding.
c. Check that the spring ension of the door is tight enough to allow the door to remain closed at full
engine RPM, yet should there be an air stoppage it will be drawn open.
7B-24. Fuel Injector.
7B-25 Fuel Injector Maintenance.
a. In general. little attention is required between injector overhauls. However. it is recommended that
the following items be checked dunng penodic inspection of the engine.
1. Check tightness and lock of all nuts and screws which fasten the injecor to the engine.
2.
Check all fuel lines for tightness and evidence of leakage. A slight fuel stain djacent to the iir
bleed nozzles is not cause for concern.
POWER PLANT
ISSUED: 8/18/72
2 F6
PIPER COMANCHE SERVICE MANUAL