Piper COMANCHE PA-24-180 Service Manual page 368

PIPER COMANCHE SERVICE MANUAL
7A-42 Installation Of Air Filter.
a
Position the filter on the bottom cowl and secure with studs
b Install air scoop on bottom cowl and secure with quarter turn fasteners.
7A-43 Induction System Air Filter. (PA-24-260. Serial Nos 24-4783 and 24-4804 and up)
7A-44 Removal Of Air Filter.
a Loosen the right side cowl fasteners and lift cowl
b Loosen air box door fasteners and open door
c Pull air filter out of box
7A-45 Service Instructions.
a.
Blow filter out with compressed air from the gasket side or wash in warm water and mild
detergent
b Dr\ thoroughly
c. When operating in dusty conditions inspect filler daily
7A-46 Installation Of Air Filter.
a With the gasket side of the filter down slide it into the air box
b Ascertain that the retaining springs are holding the filter securelv
c Close air box door and secure
d Close cowl and fasten
7A-47 Alternate Air Door. The alternate air door located in the induction system. on the right side ofr
injector air box between the air filter and the injector unit. is to provide a source of air should there be an
air stoppage through the filter system The following should be checked during inspection
a All door seals are tight and hinges secure.
b Actuate the door to determine that it is not sticking or binding
c
Check that the spring tension of the door is tight enough to allow the door to remain closed at lull
engine rpm. yet should there be an air stoppge it will be drawn open
7A-48 Carburetor.
7A-49 Carburetor Maintenance. In general. little attention is required between carburetor oxerhauls
Howexer. it is recommended that the following items be checked during periodic inspection of the engine
a Check tightness and lock wire of all nuts and screws which fasten the carburetor to the engine
b
Check all fuel lines for tightness and evidence of leakage
c Check throttle and mixture control rods and levers for travel. tightness and safety
d. Clean the fuel inlet screen (Refer to Figure 7A-10
)
e
Remove plug at aft position of carburetor and drain any accumulation of foreign matter
f
Check carburetor air box for wear and full travel of heat door
g Check adjustment of idle mixture and idle speed.
ISSUED: 8/18/72
2D10
PO% ER PL