Mooney M20K - Oxygen System (Optional); Battery

SERVICE
AND
MAINTENANCE
MANUAL
M20K
MOONE/
AIRCRAFT
CORPORATION
The
aircraft
is
delivered
from
Mooney
with
proper
12-´•10-04
OXYGEN
SYSTEM
(OPT1ONAL)
break-in
oil
(MIL-L-6082,
MIL-L-6529C
Type
II,
SAE
20W-50
Type
I
or
15W-50).
The
oxygen
cylinder,
when
fully
charged,
contains
approximately
76
cubic
feet
of
aviators
breathing
OIL
FILTER
The
oil
finer
should
be
changed
at
50
oxygen
(Specifications
No.
MIL-O-27210).
Recharging
hour
intervals
using
TCM
filter
or
approved
equivalet.
of
this
oxygen
cylinder
should
be
accomplished
by
When
changing
from
mineral
oil
to
additive
oil
the
finer
using
the
appropriate
Scott
recharging
fittings
to
the
should
be
changed
regardless
of the
operation
time.
pressure
shown
on
(Figure
12-1),
Pressure
vs
Check
screens
and
finers
for
sludge
or
plugging every
Temperature
Table.
10
hours
when
switching
from
mineral oil
to
ashless
dispersant
(additive)
oil.
\NARNING
Oil,
grease
or
other
lubn’carrts
in
contact
with
oxygen
create
a
sen~ous
fire
hazard,
and such
contact
must
be
avoided
when
handling
oxygen
equipment.
AMBIENT
FILLING
AMBIENT
FILLING
TEMPERATURE
PRESSURE
TEMPERATURE
PRESSURE
DEGREES
F
PSIG
DEGREESF
PSIG
0
1650
50
1875
10
1700
60
1925
20
1725
70
1975
30
1775
80
2000
40
1825
90
2050
OXYGEN
PRESSURE
VS
TEMPERATURE
TABLE
F(GURE 12-1
NOTE
CAUTKIN
The
oxygen
cylinder
should
not
be
run
down
to
Do
not
use a
compressor
unit
with
a
nonle
less
than
100
p.s.i.
Below
this
pressure
pressure
greaterthan
100
ps.i.
atmospheric
contamination
of
the
cylinder may
occur,
requiring
valve
removal
and
cylinder
3.
After
cleaning,
inspect
finer
andlor
gasket
for
cleaning
and
inspection
at
an
FAA
approved
damage.
Discard
a
ruptured
filter
or
broken
gasket.
repair
stations.
NOTE
NOTE
lffilter
shows
an
accumulation
of
carbon,
seat,
Refer
to
Section
35-00-00
for
periodic
bottle
or
oil,
continue
with
cleaning
steps
4
through
7.
pressure
check.
4.
Soak finer
in
nonsudsing
detergent
for
15
minutes;
Any
time
fittings
are
disconnected
on
the
oxygen
then
agitate
finer
back
and
forth for
two
to
five
minutes
system
the
threads
should
be
treated
with
to
free
finer element
of
deposits.
tetrafluoroethylene
tape
(MIL-T-i7720).
Prior
to
reconnedion
the
system
should
be
checked
for leaks
5.
Rinse finer
element
with
a
stream
of clean
water
w8h
leak
testing
compound
(MlL-L-25567).
If
no
leaks
until n’nse
water
is
clean.
are
found
wipe
the
system
clean
and
dry.
6.
Dry
finer
thoroughly.
Do
not
use
light
or
air
above
i 80
deg.
F.
for
filter
drying.
12-20-00
-SCHEDULED
SERVICING
7.
Inspect
for
damage
or
ruptures
by
holding
before
12-20-01
1
INDUCTION
AIR
FILTER
a
light
or
by
holding light
bulb
inside
filter
(25-1000
3
ON).
If
damage
is
evident,
replace
fitter
with
new
one.
The
importance
of
keeping
the induction
air finer clean
cannot
be
overemphasized.
A clean
finer
promotes
fuel
8.
Ched< altemate
aidoorfor
proper
operation
and
sealing.
economy
and
longer
engine
life. The
dry-type
fitter
can
9.
Reinstall
finer
in aircraft
making
sure
of
proper
usually
be
washed
six
to
eight
times within
500
hours
sealing
and
security.
or one
year
before
replacement
is
necessary.
To
clean
the
dry-type
induction
air finer
(25-0001
thru
12-20-02
-BATTERY
25-0999):
Service
battery
with
distilled
water
to
maintain
i. Remove
finer
element.
electrolyte
above
plates.
After
adding
water
in
freezing
weather
charge battery
long
enough
to
m’u<
electrolyte
2.
Direct
a
jet
of
air
against
down
or
clean
side of
,,d
water.
Keep
battery
electrolyte
above
a
specific
filter
(opposite
to
normal
airflow).
Keep
air noule
at
gravity
to
avoid
freezing.
To
service
battery:
least
two
inches
from
finer
element
(250001
thru
Direct
a
jet
of
air
from
inside
of
fitter
out
Remove
battery
box
cover
(if
equipped).
Check
(251000
thru
25TBA).
Cover
entire finer
area
with
airjet.
electrolyte
and
service
battery
as
required.
12-10-04
OLDWILLWAYNE