Cessna T188C - 11-11. Removal

MODEL
188
& T188
SERIES
SERVICE
MANUAL
NOTE
NOTE
If verification
of governor operation
is neces- During
the following steps remove
any clamps
sary the governor may be
removed from the
or lacings which secure
controls, wires,
engine
and a flat plate installed over
the en- hoses
or ines to the engine, engine
mount or
gine pad.
Run-up
engine
to determine
that
attached
brackets.
Omit
any
of the
following
governor was
adjusted properly.
items which
are not present
on a particular
2.
Check
carburetor
heat
control
(carburetor
engine
installation.
equipped
engines)
for
proper
rigging.
If
partially
open
it
would
cause
a slight
power
loss.
On
fuel
i.
Disconnect
throttle
and
mixture
control
from
injected
engines
check
operation
of alternate
air
carburetor.
Pull these
controls
free
of engine
and
door
spring
or
magnetic
lock to
make
sure
door
will
engine
mount,
using
care
not to
damage
them
by
remain
closed
in normal
operation.
bending
too sharply.
Note
position,
sizes and
num-
3.
Check
magneto
timing,
spark
plugs
and
ber
of attaching
washers
and
spacers.
ignition
harness
for
settings
and
condition.
j.
Disconnect
propeller
control
at
governor.
Pull
4.
On
fuel
injection
engines,
check
fuel
injection
control
aft
clear
of
engine.
nozzles
for restriction
and check
for correct
un-
k. Disconnect
carburetor
heat
control
at
airbox
and
metered
fuel
flow.
remove
airbox
in
accordance
with
paragraph
11-48.
5. Check
condition
of induction
air
filter.
Clean
1. Disconnect
wires
and
cables
as follows:
if required.
1.
Tachometer
drive
shaft
at adapter
on engine.
6. Perform
an engine
compression
check
(Refer
to engine
Manufacturer's
Manual).
11-11.
REMOVAL.
If
the
engine
is to
be
placed
in
storage or
returned to the
manufacturer
for overhaul,
When
disconnecting
starter cable
do not
proper preparatory
steps should
be taken
for corro-
permit
starter terminal
bolt to rotate.
sion prevention
prior to
beginning the removal
proce-
Rotation
of the bolt
could break the
con-
dure. Refer
to Section
2 for
storage preparation.
ductor
between
bolt and
field coils
causing
The routing
and
location
of wires,
cables,
lines,
the
starter
to be inoperative.
hoses
and
controls
will vary
between
models
and
op-
tional equipment
installed,
however,
the following
2. Starter electrical
cable at
starter.
general procedure may be followed. 3. Electrical wires and wire shielding ground
NOTE
at
alternator.
4. Cylinder
head
temperature
probe at cylinder.
Identify each
item as
it is disconnected
to
WARNING
aid in
replacement.
Plug or
cap
all dis-
connected lines, hoses and fittings to pre- The magneto is in a SWITCH ON condition
The magneto
is in a SWITCH
ON condition
vent
entry
of
foreign
material,
when
the switch
wire
is
disconnected.
Ground
the magneto
points
or remove
the
a. Place all cockpit switches and fuel shut-off valve high tension wires from the magneto or
in the OFF position.
high tension
wires from
the magneto
or
in the OFF
position,
spark
plugs
to prevent
accidental
firing.
b.
Remove
engine
cowling
in
accordance
with
para-
graph
11-3.
5. Disconnect
switch
wires
at
magnetos.
c.
Open battery
circuit by disconnecting
battery
m. Disconnect
lines and hoses
as follows:
cables.
Insulate
cable
terminals
as
a safety
pre-
caution.
WARNING
d.
Drain
fuel
strainer
and
lines
with
strainer
drain
control.
Residual
fuel and oil draining
from discon-
NOTE
nected
lines and hoses constitutes
a fire
hazard.
Use caution
to prevent
accumula-
The engine may
be removed
from the air-
tion of such
fuel and oil when
lines or hoses
The
engine
may
be
removed
from
the
air-
are
disconnected.
craft with
or without
the
engine
mount
at-
are
disconnected.
tached.
The reason
for the engine
removal
1. Oil temperature
bulb below
oil cooler.
should be
the governing factor as
to the
2. Oil pressure hose at firewall.
manner
it is to be removed and at
which 3.
Primer line to engine at
firewall.
point the controls should be disconnected. 4 Fuel hose at fuel strainer.
5.
Manifold
pressure
line
at
firewall.
e. Drain
the
engine
oil
sump and
oil
cooler.
f. Remove spinner and propeller in accordance
with
Section
13.
On engines
with
constant-speed
propellers,
cover the exposed
end of the crankshaft
If the
aircraft is
equipped with
an engine-
to
prevent entry
of foreign
material.
driven
hydraulic
dispersal
system,
relieve
g.
Disconnect
hot
and
cold
air
flexible
hoses.
reservoir
air pressure
before disconnecting
h.
Remove
muffler
and
exhaust
stacks in
accor-
reservoir
air pressure
before
disconnecting
hydraulic
lines
at
engine.
dance
with
paragraph
11-79.
11-7