Alternator Testing - Piper PA-24 Comanche Service Manual

PIPER COMANCHE SERVICE MANUAL.
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S EAL· INSTALL SEAL
WITH LIP
TO.AItD
IEARIN,
G"EAS!
CAVITY
IU,-.."'_
""'''IIM.
I'UD
OUl"UTI+)
T'I"M'NAL,
-ICT"•• _
_ . ,... ,....TIC
u ......
'.IUU'PO """"I_
'0."" IT.....
_""fl••
"Un:
AUXILIARY
TI""I
NAL.
:JM
•
fWIGUR! 9-27". TERMIHAL ASSEMBLY
fWlGUR E 9·271. SLI P II NG EMC
BlARING ASSIMILY
•
should
be
instaUed after the unit has been bench te.ted for output. lnataU .pacer. woodruff key.
ran. pulley. lock wa.hltr and nut. Torque tbe nut to 35 foot pounds. uainl
a
strap wrench
:0
hold
the pulley.
00
not inltall the bl.st tube ••••mbly WItH after the wut has been bench tested.
C. Install the brush and holder assembly and tet.inilll screw,. Spin the rotor and check for
interference between the brush holder .nd rotor. Check acrOi. the field temurals with an ohm·
meter. The ohmmeter must indicate the 'mount of rotor resistance list.d on the individual s;»eei.
fications pace.
no
9-61i. Te.tl,..
Of
Al"'notor.
a. Wirina c:onn.ctioftl for bench teStine
the alternator are shown in Fil\Ue 9-2':'m.
Refer to the indivldual specifieatiofl paps
for output test Haures. Adjust the carbon
pile. if /IIc.Slary. to obtain the specified
vol~ale.
b. After
bench
testinl
:he
aUernator. in-
stall the safety Wlre and blast tub. anei
install the altemator on the enci.ne.
MOTE
Always refer to the 'Ririne oia·
Iram. FilUto 902':'13. wilen rn-
st-lUna tt_ .It.mltor or testinc
the alternator.
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FIGURE 9·27",. TESTING ALTERMATOR
ELECTRICAL
SYSTEM
ISSUED: 8118n2
3
C3