Piper PA-32RT-300T User Manual

11-26. ASSEMBLING
END
SHIELD
SUB-ASSEMBLIES.
Position
the rotor
and drive
end
shield
assembly
on the
rectifier end
shield.
Align the
through
bolt holes
through
the drive
end shield,
stator
and the
rectifier
end shield.
Compress
stator
and both
end shields
by hand
and install
the through
bolts.
Install the
insulated
brush
and holder,
terminal,
insulating
washer, lockwasher
and
terminal
attaching screw.
Install the ground
brush and
attaching screw.
Rotate
the pulley
slowly
by hand to
be sure that
the rotor fans
do not hit
the rectifiers
and stator connectors.
After installing
the
alternator on
the engine,
always test
the complete
charging system
to
be certain
it is functioning
properly.
NOTE
New through
bolt locking tabs
should be installed at each
alternator
disassembly.
Torque
through
bolts evenly
to 25
inch pounds
and bend
both ears
of the locking
tabs against
bolt head. Check
proper belt
tension.
11-27. BENCH RUN-UP
TEST. This
test is to be performed
at room ambient
conditions
and consists of four
checks which are
to be made quickly
to avoid heating
of the windings.
These are as follows:
NOTE
For test
c and d external field
excitation may be used but
must be
removed and self excitation
used to obtain output
amperes. (Refer
to Figure 11-21 for meter
connections.)
a. With the alternator at rest, apply
15 volts between the alternator
battery terminal
and
ground with
polarity such
that the rectifiers
will block
current
flow (positive
of supply
to positive
of the alternator).
Monitor rectifier
reverse current which
shall be not more
than
1 milliampere.
b. With the
alternator at rest, apply 15 volts
to the field circuit and monitor field
current. This shall be between
the limits of 3.3 amperes minimum
and 3.6 amperes
maximum.
c. Drive the alternator
at 1500 rpm with an electrical
load connected to the alternator.
Adjust
the load to obtain 15 volts. Net output
(not including field current) shall
be not less
than 26.5
amperes.
d. Drive the alternator at 2500
rpm with an electrical load connected
to the alternator.
Adjust the load to obtain 15 volts.
Net output (not including field current)
shall be not less
than 49.0 amperes.
Issued: 1/3/78
ELECTRICAL
SYSTEM
2G9
LANCE
II SERVICE
MANUAL

Piper PA-32RT-300T Specifications

General

Brand	Piper
Model	PA-32RT-300T
Category	Aircrafts
Language	English