Piper Comanche PA-24 Service Manual page 494

PIPER COMANCHE SERVICE MANUAL
a .. ,
1. IOU '''110
.t.OJI,IITW'NT
Z. 10\.[ WIITUItI .t.G,NITW,"T
J . . .
lltTUIt ........
•• ",IL 11":_11111
FIGURE 7A·12. IDLE AND MIXTURE ADJUSTMENT (FUEL INJECTOR)
iA·61. Adjurancnt
Of
Thronle And
Mixture
Conlnlls (Fuel Injectorl. The throttle and mixture controls
are a.djusted so that when the throttle ann on the injector
is
rotated forward qainSt ics full throttle stop
lnd the mixture ann is rotated forward against
its
full rich stop,
their
respective cockpit
concrol should
be
.062 of an inch in from the" full forward Stops.
i.
At the injeCtor, disconnect the throttle and/or mixture control cable end from its control ann.
b. Loosen the Jam nut securing the cable end.
c. Adjust the linkage bv roating the cable end to obtain the
.062
of an inch spring back of the
cockpit conrrollever when the throttle or mixture control arm conD-c:tS ip Stop.
d. Reconnect the cable end to to
control arm and secure jam. nut.
e. Pull the throttle and mixture contrOls in the cockpit full
aft
to ilscerta.in that the: injector idle
screw contacts
its
to'!' and the mUtture control arm contacts
its
lean position.
7
A-62. Adjustment
Of
Idle Speed Alld MixUl". (Fuellnjcctorl
ii.
Sun the engine and
wann
up in the usual manner unw
oil
and cylinder head temperatures a.re
normal.
b: Check magnetos. If the
"mag~rop"
IS
normal. proceed with Idle adjustment.
c. Close the throttle to idle. If the RPM changes appreciably after making the idle mixture
adjusanent during the succeeding steps. readjust the idle speed to the desired RPM
NOTE
The Idle mixture must b. adjusted with the fuel boost pump "ON".
POWER PLANT
ISSUED: 8118n2
2 016