Piper Comanche PA-24 Service Manual page 702

FIGURE 9·27;. IHST ... L.L. ... TlOH OF
IURIHG
9-61h ......... Dly Of Alternator.
PIPER COMANCHE SERVICE MANUAL
FIGURE 9-27i. INSTAL.L. ... TION OF
RECTIFIER
a. Press the ball beanng in.o the dn,e end head .. ing a nat block approxima.ely two inch
square so that the pressure is exerted on
the
outer race of
the
b •• rinl. l.ta11 the retainer plate.
With the snap rinl aad retainer cup in place on the rotor abait, use a tool that fits over
the
shaft
and. against t!le inner bearinl race, and press until the Inner beatine race is against the snap ting
"lainer cup. (Refer to Figure 9-27i.)
b. Carefully u15ta11 the rectifiers in the slip ring end head or rectifier mounting plate by . .
supporting the unit and using the specIal tools illustrated in Figure 9-27j. . .
C ... UTIOH
Use an arbor press, do not hammer. Reconnect the stator leads
to the rectifiers. When soldenag these coanections. use pllers
a. a heat dam on .he lead between the solder jOint and the recti-
fier. Too much heat will damale the rectifiers.
c. Reassemble the rectifier mcunung plate studs and insulators. makinc, sure they are in the
correct order. (Refer to Figure ~27k.)
d. Aftel the slip rinl end head is completely assembled. tbe stator and rectifier leads mUSt
be secured to the rect.ifier mounting plate with epoxy. Make sure the stator leads are poslt1oned
so that they do not interfere with the rotor.
e. lnstall th_e slip ring end bearing and. oil seal. ~ke sure the lip of the oil seal is toward
the bearing. Correct assembly of bearirll. seal. iMer race and spacer is shown in Figure 9-2i 1.
f. Assemble the
alte~nator
and install the throu.gh bolts. Spin the rotor to :nake sure there
is
1\0
mechanical tnterierenee. Torque the throUlh bolts to 30 to 3S inch pounds. Safety wue
!L.ECTRIC"'L. SYSTEM
ISSUED: '118m
3 C2