Piper Comanche PA-24 Service Manual page 432

PIPER COMANCHE SERVICE MANUAL
....
7
lL _ _ 8
, _ _ -5
L _ _ 4
FIGURE 7·7. CARBURETOR
,. 101,.1 WIJ;TUIII AOJU,TW.",T
Z.
""I'T",_. CGIIT.O!,. &II",
.). 'OWI,. 0116.'"
•• 'UII.. " ... IET
'C.I1M
' 0
",UtOTTL' .......
' 0
IOU: AOJU,TW,IIT
7. All'" liT .CIIIW
d.
.-\d~ust
mixture lnd carburetor heat control by loosening the casteUed nut at the control anns and
sliding control cable through the stud until the 062 of an inch spring back of the cock;:1It control is
obtained when the mixture is in the full rich position and the carburetor heat is in the full ram lir posItion.
e Tighten castcUed nut and safen·.
f. Pull the throttle, mixture and carburetor
he:u
controls in the cockpit full aft to a.sceru.in that the
throttle ann contacts the idle screw and the mixture control arm. contacts
its
idle cut off
Stop
a.nd the
carburetor heat flap valve is in the full carburetor heat position.
7·37. Adjusanmt Of Idle Speed And Mixture.
a. Stan the engine and warm up in the usual manner until oil and cylinder head temperatures are
normal.
b. Check magnetos. If the "mag-drop·' is nonnal, proceed with idle ,djusanen,.
c. Clo.. 'he throttle
'0
idle. If 'he RPM changes appreciably .iter makmg the idle mIXture
adjusoncnt during the succeeding steps. readjust the Idle speed to the dC$ired RP~.
NOTE
The Idle mi.~ture must be adjusted with the fuel boost pump
"OS·'
POWER PLANT
ISSUED: 8/18172
2 B6