Propeller Installation - Piper PA-24 Comanche Service Manual

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PIPER COMANCHE SERVICE MANUAL
i·l1. Installation Of Propeller. (McCau.lcy) (Refer to FiJure 7·1.)
CAUTION
A~crtain
the .\taster Switch and Mqneto Switch ue
ill
the "OFF"
position and the Mixture Conttol is
in the "IDLE CUT.()FF" polition.
a. POlition the spinner bulkhead
rina
(5)
apimt the
starter
riDt
leu support
(4) 10
thac one arrow
lina up wim the TCI.
OQ
the front
face
of the suppon:.
b. Secun: the spinner bulkhead to me stifter
rina
par mppon: with 12 bola (U. 12 nuts (3), and 201-
wuben
(2)
(one under the bolt head lAd one
IlDder
each
Qut).
Cuefully
tipten
QUts Ilftifonniy to torque
limits shown in Table VIJ-1.
c.
Clean the propeller and eftline
tlanps.
d. Observe the starter rina
par
co make
sure
it
is
mounted properly
on the
eftIine crankshaft fianle.
The cnnkshaft flange is stamped with
an "0" mark and
the
Rafte:
rinJ
leu
is likewise identified by
an
"0" mark. Upon insullation of the Slarter
riat
par.
the
ma.rltiDI
shall be mated to insure proper
installation.
e.
Insert
the
"0"
rinJ
(6)
in the pove of the propeller hub bon:. Make
Sllft
that the "0"
rin,
is not
twisted and is liberally coated with clan lubric:atiq oil.
NOTE
Some McCauley Model 2D36C14
propcUcrs will be founei in use with a.
counterbon: in the hub instead of an "0"
rial
pave. When uutallitlc
tilese propellers. always insen: the "0"
rinJ
in the counterbore and push
it to the bottom. Sever slide the "0" ring on the c:n.nkshaft pilot.
f.
Raise the propeller and line up the mows on the hub
flanae
outer diameter with the short bushing
in the crankshaft n&nfe. En..,e the pilot
in
the hub. making
sure
that face of hub f1anIe is puailel wlth the
face of
the cranksnaft flange. then push the propeller in. Make sure that the bolt holes eDBace the bushings.
CAUTION
It is important that the propeller be seated &pin. the crankshaft
flanae
with a stTallht push. Rotating or cockinl it on will c:aUJe damage
to the
"0"
rinJ
and oillcaka.Jc will result. Particular cue muSt be taken while
installing hubs haviftl a ecunrerbore co prevent damapnl the "0" ring
or displaclDB it so that it is lodged betwccn the flange faces. The latter
condition will be indicated by nofttn.cking of the blades immediately
after insullation.
POWER PLANT
ISSUED: 8/18/72
2 AlB