Piper Comanche PA-24 Service Manual page 571

.
,
PIPER COMANCHE SERVICE MANUAL
' .
..... AOJUIT
IW,
.ell""
5
••
L.CU:" ",UT
••
'OWTltOL. &JIM
4 • COIITIIOL. willI",
••
ICItIW a"I"I ..
f
FIGURE 'C·3. PROPELLER GOVERNOR
7C·17 Adj....",ent Of Propeller Governor. (R.fer to Figure 7C·l.)
a.
Srut the engine in I.Ccorda.ncc WIth the directiOns given in the Owner's Flight .\'\anual and allow to
warm up .
b. Push the "PROPELLER" cockpit control as far forward as it
will
go. At this position the gov.rnor
speed adjusting control lever will be against the hi-rpm fine adjusting screw.
c. Observe .ngin. sp~d. AdjUst t!l. governor by means of the fin. adJustm.nt screw for 2700 RP.'.\.
To do
thiS.
release the fastenen and lift the left side c1't!inc cowlinl. Loosen the fme adjustment screw
lock.nut and tum tbe hl-rpm fine adjustment screw in a clockwise direction to decrease engine speed and a
counterclockwise roation to increase cng1!lC speed. One revalueon of the fine adjuStment screw Increases
or d.cr .... s the prop.ller sp~d approximat.ly 15 RPM.
d. After
sen:Ul,
the governor for high RPM. run the self·lockUlJ nut on the fine adjusoncnr screw
against the base projection co lock.
•. Pull the ··PROPELLER·· cockpn control aft to the low RP~ position.
f. Observe engine speed. Sec to
1600 RPM
ather by chreading the fitting at the governor concroi arm
into the cable. or by turnlllg it in the rfirection tending to remove the fitting from the cable. depending on
whether It IS requlred to decrease or
mcrca.se engine speed respectively It will be ncccssuy. !,rior co
adjusting. to remove the ~if~locklOg nut and disconnect it from the governor concrol arm .lnd to release the
fitting locknut.
g
Reconnect cable to governor concrol arm. apply fitting locknut and recheck
engmc
b~'
movlO,
cockpit control in 1l\d out of the appropriate sen:in!s.
h Secure the cowling.
POWER PLANT
ISSUED: 8/18172
2815