Piper Lance II User Manual

LANCE
II SERVICE
MANUAL
10-6.
SUCTION
GAUGE.
10-7.
GENERAL.
The
suction
gauge
is
mounted
in the
right
side
of the
instrument
panel.
This
gauge
is calibrated
in inches
of mercury
and
indicated
the
amount
of vacuum
created
by
the engine
driven
vacuum
pump.
The
suction
gauge
has
a direct
pressure
line
and
a vent
line.
Therefore,
these aircraft
indicate
the
differential
pressure
or actual
pressure
being
applied
to
the gyro
instruments.
As the
system
filter becomes
clogged
or lines
obstructed,
the
gauge will
show
a decrease
in pressure.
Do not
reset the
regulator
until
the filter
and
lines have
been
checked.
10-8.
TROUBLESHOOTING.
For
troubleshooting
of
this instrument,
refer
to Table
X-I
of
this section.
10-9.
VACUUM
REGULATOR
VALVE.
10-10.
GENERAL.
One
vacuum
regulator
valve
is
incorporated
in
the
system
to control
vacuum
pressure
to the
gyro
instruments.
The
regulator
valve
is located
under
the instrument
panel.
Access
to
the
valve
for maintenance
and adjustment
is
gained
from
below
the
instrument
panel.
10-1
.
TROUBLESHOOTING.
For troubleshooting
of
the vacuum
regulator
refer
to Table
X-I.
10-12.
ADJUSTMENTS
OF VACUUM
REGULATOR
VALVE.
a.
Bend
washer
tabs up
to
turn
adjusting
screws.
b.
Start
the engine,
after
allowing
time
for
warm-up,
run
the engine
at
2700 RPM.
NOTE
On
the PA-32RT-300T
do
not maintain
from 2575-2700
RPM's
for more than
5 minutes.
c.
With
the engine
running
at 2700
RPM,
the
suction
gauge
should
indicate
5.0 inches
of
mercury
+
.1 - .2
inches
of mercury.
If the
pressure
reading
fails
to fall
within
this
range,
shut
down
the
engine
and
adjust
the regulator
valve
by moving
the valve
adjustment
screw
clockwise
to increase
the
pressure,
and counter-clockwise
to
decrease
the
pressure.
Start
the
engine
and repeat
the check.
With
engine
running
at 2700
RPM,
the
suction
gauge
should
indicate
5.0
inches of
mercury
+ .1 -
.2 inches
of mercury.
d. After
the
system
pressure
has
been adjusted
to these
recommended
settings;
bend
washer
tabs
down
to
lock
pin
in adjusting
screw
in place.
Revised:
10/3/80
INSTRUMENTS
2E10

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