Piper Lance II User Manual

END
VIEW
SIDE
VIEW
Figure
11-34.
Brush
Installation
Figure
11-35.
Internal
Wiring
Schematic
11-40.
CHECKING
ALTERNATOR
BELT
TENSION.
If
properly
installed,
tensioned
and
checked
periodically,
the
alternator
drive
belt
will
give
very
satisfactory
service.
However,
an
improperly
tensioned
belt
will
wear
rapidly
and
may
slip
and
reduce
alternator
output.
Consequently,
a belt
should
be
checked
for
proper
tension
at
the
time
it
is
installed,
again
after
25
hours
operation
and
at
each
100
hour
instpection
thereafter.
(Refer
to
Paragraph
11-45.)
For
aircraft
with
airconditioning
installed
refer
to
Paragraph
14-22
&
14-23
for
alternator
belt
tensions.
11-41.
VOLTAGE
REGULATOR.
1142.
CHECKING
VOLTAGE
REGULATOR.
The
regulator
is
a
fully
transistorized
unit
in
which
all
of
the
components
are
encapsulated
in
epoxy,
which
makes
field
repair
of
the
unit
impractical,
and
if
it does
not
meet
the
specifications,
it
must
be
replaced.
The
regulator
may
be
tested
by the
following
procedure:
a.
Be
sure
that
the
battery
is
fully
charged
and
in
good
condition.
b.
Check
the
alternator
according
to the
manufacturer's
instructions,
to
determine
if it
is functioning
properly.
c.
Use
a
good
quality
accurate
voltmeter
with
at
least
a
15 volt
scale.
d.
Connect
the
positive
voltmeter
lead
to
the
bus
or cigar
lighter
socket.
Connect
the
negative
voltmeter
lead
to
a good
ground.
(Note)
Do
not
connect
the
voltmeter
across
the
battery,
because
the
regulator
is designed
to
compensate
for
resistance
contained
within
the
wiring
harness.
e.
With
the
alternator
turning
at
sufficient
rpm
to produce
a half
load
condition,
or
approximately
25
amperes
output,
the
voltmeter
should
read
between
13.6
and
14.6
volts.
The
ambient
temperatures
surrounding
the
voltage
regulator
should
be
between
50
°
F.
to
100
°
F.
while
this
test is
being
made.
Issued:
1/3/78
ELECTRICAL
SYSTEM
2620
LANCE
II SERVICE
MANUAL

Piper Lance II Specifications

General

Manufacturer	Piper Aircraft
Max Takeoff Weight	3, 600 lb (1, 633 kg)
Crew	1
Horsepower	300 hp
Seats	6
Length	27 ft 7 in (8.41 m)
Capacity	5 passengers