Piper PA-24 Comanche Service Manual page 575

•
PIPER COMANCHE SERVICE MANUAL
cavities. Use a pin or a piece of wire. as shown in Figure 9-27n. to hold the brushes in the holder during
assembly.
Remove the pin after the brush holder retaining screws have been tightened. Make
a
continuity check to be sure the brushes are seated against the slip rings.
d. Drjye Pulley: Torque the drive pllUey ntta,iniq
lUIt
to 35 foot pollllds.
e.
Ventilation: The 8400
series Wlits use
a
sHIl
rinl
end
coYer that bas a ht»e
tYl)e
eenaee-
t.ion for ait pre.sure ventilation. Remove this cover wben bench tntire the alternator.
9-611. Alt.r"oto, S.rviu T••t S,.clficnlo".. Ptestolite specifications for
the 12.yolt
alter-
nator installed
as
standard equillment on PA·24
aifllla.s are as follows:
i
•
Alternator :\foclel
Voltale
Rated Output
Ground Polarity
Rotation
Rotor:
Current Draw (77' F)
Resistan:e (77' F)
ALX8403
,
I
12-volts
I
70
IJIII'8fe'
I
I
Nelative
Bi-Directioaal
2.9
to
3.3 am~ ~ 12."volts
3.7
to
4.1 oh_
•
Output Test (77
0
F):
Volts
Amperes Output
Fie ld Amperes
Alternator
RP~
3
C5
13.0
10.0
2.85
li80
min.
14.2
i1.5
3.15
sooo
min.
ELECTRICAL SYSTEM
ISSUED: 8/18n2