Cessna T188C - Page 31

MODEL
188
& T188
SERIES
SERVICE
MANUAL
When changing
engine
oil, remove
and clean oil
screens, or install
a new filter element on
aircraft
CAUTION
equipped
with an
external
oil filter.
To drain
the
engine
oil, proceed
as follows:
Do not
use solvent
or cleaning
fluids
to clean
a. Operate
engine
until
oil temperature
is
at nor-
filter.
Use
only a
mild household
detergent
mal operating temperature. and warm water solution.
b.
Remove
oil
drain plug
from
engine
sump
and
allow
oil
to drain
into a
container.
allow
oil
to
drain
into
a container.
d.
After
washing,
rinse
in
clean
water
and
allow
c.
After engine oil has drained, install
and safety water to
drain from filter. Dry with compressed
air
drain
plug or
close
drain valve.
(not
over 100
psi).
d.
Remove
and
clean
oil
screen.
d.
Remove
and
clean
oil screen.
e.
Be
sure
induction
air duct
is
clean,
inspect
e. Service engine with correct quantity and grade filter, and replace if damage is evident.
of engine
oil.
I. Install
filter
with
gasket on
aft face
of filter
NOTE
frame
and
safetywire
attaching
wing
nuts.
Refer
to inspection
charts
for intervals
for
2-24.
INDUCTION
AIR
FILTER.
Every
50
hours or
changing
oil and
filter
elements.
Refer
to
more
often under
dusty conditions,
clean
air
filter
by
figure
2-4
for correct
grade
of engine
oil,
tapping
on
a hard
surface
to
remove
loose
dirt.
Re-
and correct
capacities.
Also
Section
1.
place
filter
every
500
hours
or more
often
if required.
2-22.
REMOTE
ENGINE
OIL
DRAIN.
An
optional
2-25.
BATTERY.
Battery
servicing
involves
adding
remote
engine
oil drain
system may
be installed,
distilled
water
to maintain
the electrolyte
even
with
This
system
allows
the engine
oil
to be drained
from
the horizontal
baffle
plate or
split ring
at the
bottom
the engine
without
having
to remove
the
lower
engine
of
the filler
holes,
checking
cable
connections,
and
cowling.
The installation
consists
of an
on-off valve
neutralizing
and cleaning
off any
spilled
electrolyte
mounted
at the
base of
the firewall
and
connected
to
or
corrosion.
Use
bicarbonate
of
soda (baking
soda)
the engine
oil
sump
by a flexible
fire
resistance
hose.
and clean
water
to neutralize
electrolyte
or corrosion
followed with
a thorough flushing
with clean
water.
2-23,
INDUCTION
AIR FILTER.
(Thru
Serial
Do
not allow
bicarbonate
of
soda
to enter
battery.
18801374.
)
The frequency
with which
the filter
should
Brighten
cable
and terminal
connections
with
a wire
be
removed
and cleaned
will
be determined
primarily
brush,
then coat
with
petroleum
jelly
before
connect-
by aircraft
operating
conditions.
A
good general
rule,
ing.
Check the
battery
every
50 hours
(or at
least
however,
is
to remove
and clean
the
filter
at least
every
30
days),
more
often
in hot
weather.
Add
only
every
50 hours
of engine
operating
time and
more
distilled
water,
not acid,
or "Rejuvenators",
when
frequently
if warranted
by operating
conditions.
Filter
maintaining
electrolyte
level
in the battery.
Inspect
blockage
can
be considered
excessive
whenever
the
the
battery
box
and clean,
and
remove
any
evidence
difference
between
the manifold
pressure
reading
of corrosion.
See
section
16 for
detailed
battery
removal,
installation
and testing.
with
the engine
shut
down on
the ground
and
the mani-
removal,
installation
and testing.
fold pressure reading with the engine running on the 2-26. TIRES. Tires should be maintained in the air
ground at full throttle
and high RPM exceeds
1.0 in. Hg.
TIRES
pressures
specified in figure
1-1. When
checking
Under extremely
dusty conditions,
daily maintenance
pressure specified
in figure 1-1.
When checking
tires
for
pressure,
examine
for
wear,
cuts,
bruises
of the filter
is recommended.
The aircraft
is equip-
tires for pressure,
examine for
wear cuts,
bruises
and slippage.
Remove
oil,
grease
and
mud from
ped with
a paper-media
filter.
To service
the air
slippage.
Remove
oil
grease and
mud
from
tires with soap and water.
filter,
proceed
as
follows:
a. Remove filter from aircraft.
b.
Clean
filter
by blowing
with
compressed
air (not
over 100
psi) from direction
opposite
of normal air
flow.
Normal air flow is from
outside to inside
Recommended tire pressure
should be main-
filter, tained. Especially in cold weather, remem-
NOTE
ber
that any
drop
in
temperature
of the
air
inside
a tire causes
a corresponding
drop
in
Use care
to prevent
damage
to filter
element
pressure.
when
cleaning with compressed
air. Never
HYDRAULIC
BRAKE SYSTEMS
Check brake
use an air
pressure
greater than
100 psi.
use an air pressure greater
than 100 psi
master cylinders
and refill
with MIL-H-5606
hydraulic
fluid as specified
in the inspection
charts.
Bleed the
c. After
cleaning
as outlined
in step
"b", filter
may fluid
brake system
of entrapped
air whenever
there is
a
be washed, if necessary,
with a mild household de-
brake system of entrapped
air whenever there is a
spongy
response
to
the brake
pedal.
Refer
to Section
5 for filling
and bleeding
of the
brake system.
NOTE
The
filter
assembly
may
be
cleaned
with
air
a maximum
of 30 times
or washed
a maximum
of
20 times.
Filter should
be replaced
after
500 hours
of
engine
operation
or one
year,
whichever should occur first.
2-9