Piper PA-24 Comanche Service Manual page 443

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PIPER COMANCHE SERViCE MANUAL
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FIGURE 7C-J. PROPELLER GOVERNOR
iC·li. Adjunment Of Propel1cr Govemot. (Refer to Figure
7C-3,)
a. Start the enJine
1ft
accordance with the cbrections ,ive!1 in the Owner's Flight :'-tanual olnd lilow to
warm up,
b. Push the "PROPELLER" cockpit contrOl as far forward as it will
iO.
At this position the governor
speed adjustiftJ controllcver will be apinst the hi-rpm fine adjusting screw.
c. Observe engine speed. Adjust the govemor by means of the flne adjustment screw for 2700 RP"'.
To do this. release the fasteners and lift the left side c"I!inc cowling, Loosen the fine adjustment screw
locknut and tum the hi-rpm fine adjusaneftt screw in a clockwisc direction to decrease cftllne speed and
;1
ecuntercloekwee rocabon to increase cngine speed. One revolueon of the fine adjustment screw increases
or decreases the propeller speed approximately 15 RP.\t.
d. After sertin, thc governor for hi&h RPM. run the self-locking nut on the fine adjustment screw
agamst the base projection to lock.
e. Pull the "PROPELLER" cockpit control aft to the low RP.\1. position.
£. Observe engine speed. Set to 1600 RPM eitner by threading the fitfmg
at
the governor ccnrrci arm
into the Cable. or by tumUlI it in the riitection tending to remove the finlftg irom the cable. de;lending on
whether It is required to decrease or increase engine speed respectively. It Will
be
neeessarv. pnor to
adjusting, to remove the sclf·locklftJ nut and disconnect It irom the governor control arm .I.nd to release the
fitting locknut.
g, Reconnect cable to governor control arm. apply fittiI1J locknut and recheck cngme
by
movln!1
cockpit control :n md out of the appropnate seum,s.
:" Secure the cowling.
POWER PLANT
ISSUED: 8/18/72
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