Piper Comanche PA-24 Service Manual page 470

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PIPER COMANCHE SERVICE MANUAL
B 6
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FIGURE 7A-5. WOOOWARO PROPELLER GOVERNOR ADJUSTMENT POINTS
7A·27. Adj .......... t Of Propeller Governor. (HartzeU) (Refer to Figure 7A..s.)
.. Release the fastenen and lift the left side engine c:owling.
b. Stitt the engine in accordance with the directions liven in the Owner's Flight :'<Ianual and allow to
wumu.p.
c. Push the "PROPELLER" cockpit control .. far forward .. it
will go. At this positlon the governor
speed adjuoting contrOl lever will
be
against the hi-<pm fIDe adjusting screw
d.
Observe eft8ine speed. Adjust the governor by means of the fine adjustment scr.w for 2H5 RPM
(PA·Z4-250) or 2700 RPM (PA·Z4-Z60). To do mis, loosen th. fIDe adjustment screw locknut and rum the
hi""'Pm fUie adjuscncnt screw in
I
clockwix direction to decrease engine speed and a. counterclockwise
rotation to increase engine speed. One feYOlution of the fmc adjusanent screw increases or decreases the
prop.Uer speed approximately 15 RPM.
e. Aft ..
settinc
the governor for high RPM, run the self-locking nut on the fIDe adjustment screw
against the base projection to lock.
f. Pull the "PROPELLE.R" c:ockpit contrOl aft to the low RPM position.
g. Observe enJine speed. Set to 1900 RPM (PA·Z4-Z50) or
1600
RPM (PA·Z4-Z60) either bv
threading the fitting" the governor control arm onto the cable, or by turning it in the dir.ction tending to
remove the fitting from the able, depending on whethet
It
is required to d.et .... or inet .... enlin. spe.d.
respectiv.ly. It will be necessary, of c:ourse, prior
to
adjusting, to remove the self·locking nut >nd
diKonncct
it
from the governor control urn Uld to release the fitting locknut.
n. Reconnect cable to governor control ann. a.pply fitting locknut md recheck engine !)y moving
c:ockpit control in and ou, of the appropriate setting.
i. Secure th. cowling.
POWER PLANT
ISSUED: 8118n2
2 C16