Piper Cherokee Six - Page 509

PIPER
CHEROKEE
SIX
SERVICE
MANUAL
TABLE
IX-IV.
RATE
OF
CLIMB
INDICATOR
(cont)
Trouble
Cause
Remedy
Rate
of climb
indi-
cates
when
aircraft
is banked.
Pointer
has
to
be
set
before
every
flight.
Water
in
static
line.
Disconnect
static
lines
and
blow
out
lines
from
cockpit
out
to
pitot
head.
Temperature
compen-
sator
inoperative.
Replace
instrument.
Pointer
cannot
be
reset
to
zero.
Instrument
reads
very
low
during
climb
or
descent.
Diaphragm
distorted.
Case
of instrument
broken
or leaking.
Replace
instrument.
Replace
instrument.
NOTE
When
any
connections
in
the
static
system
are
opened
for
checking,
system
must
be
rechecked
per
F.A.R.
23.1325.
9-29.
REMOVAL
AND
REPLACEMENT.
Refer
to
Paragraph
9-74
of
this
section.
9-30.
SENSITIVE
ALTIMETER.
9-31.
GENERAL.
The
altimeter
indicates
pressure
altitude
in
feet
above
sea
level.
The
indicator
has
three
pointers
and
a
dial
scale,
the
long
pointer
is
read
in
hundreds
of
feet,
the
middle
pointer
in
thousandths
of
feet
and
the
short
pointer
in
ten
thousandth
of feet.
A
barometric
pressure
window
is
located
on
the
right
side
of
the
indicator
dial
and
is
set
by
the
knob
located
on
the
lower
left
corner
of
the
instrument.
The
altimeter
consists
of
a
sealed
diaphragm
that
is
connected
to
the
pointers
through
a
mechanical
linkage.
The
instrument
case
is
vented
to
the
static
air
system
and
as
static
air
pressure
decreases,
the
diaphragm
expands,
causing
the
pointers
to move
through
the
mechanical
linkage.
INSTRUMENTS
Revised: 6/18/76
2K17