Alternator Assembly - Piper PA-24 Comanche Service Manual

PIPER COMANCHE SERVICE MANUAL
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FIGURE '·211. INSTALLATION OF
BEARING
FIGURI9-27I· INSTALLATION OF
RICTIFIIR
9-61h. A...",Atly
Of Alte,n.tor.
a. Press the ball bearina iato the drive ead head
.-ina •
flat block approxilUtely nro inch
squ.are so that the pressure is exerted on the outer race of thl beadlll. IlIItaU the retainer plate.
With the snap rinC and retainer cup in place on the rotor shaft, ... a tool that fits over the shaft
and acainst the inner b.arinl race. and press uDtil tbe iener bearine race
is
acainlt the snap ring •
retainer cup. (Refer to Ficure 9·27i.)
b. Carefll11y install the rectifiers in the slip
tina
end head or rectifier lIIOuntinl plate by
suppvrtinC the unit and l15il1l the special toole illustrated
in
Fiple 9-27;.
CAUTIOM
Use an arbor press, do not hammer. Reconnect the stator lnds
to the rectifierw. When solderiDi tbt.e coanectionl, use pliers
a. a heat dam on the lead betwHn the lolder joint aad the recti·
fier. Too much hut will dau.. the rectifiers.
c. Reassemble the rectifier mountinc pl.te studs and ins Ill_tors ,
lIl.kine
sure they are in the
coneet order. (Refer to Fipr. l}o27k.)
d. After the slip rinl end head is completely usembled. thl stator and rectifier leads mll5t
be secwed to the rectifier mountinl plate with epoxy. Make sure the stator leads are positioned
so that they do not interfere with the rotor.
e. Install th.& slip rinC end bearine and oil s.al. *k. sure the lip of the oil seal is toward
the !)earing. Correct assembly of bearina. leal. inner
race
and
I~c.r
is shown in Filllre 9-271.
f. Assemble the alte!n.tor and install the tbrouCh bolts. Spin the rotor to make sure there
is no mechani.cal interference. Torque the tbroulh bolts to 30 to 3S inch pounds. Safety wire
ELECTRICAL
SYSTEM
ISSUED: 8118n2
3 C2
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