Cessna T188C - Page 214

MODEL
188
& T188
SERIES
SERVICE
MANUAL
11A-72.
INSPECTION.
Since
exhaust
systems
of this
2. With
vacuum
cleaner
operating,
all
joints
type
are
subject
to burning,
cracking
and
general
in the
exhaust
system
may be
checked
manually
by
deterioration
from
alternate thermal
stresses and
feel,
or by using a
soap and water
solution and
vibrations,
inspection
is
important
and
should
be
watching
for bubbles.
All
joints
should
be free
of
accomplished
every
100 hours
of
operation.
Also,
a
air leaks.
thorough inspection of the engine exhaust system
should
be
made
to detect
cracks
causing
leaks
which
NOTE
could result in loss of engine power. To inspect the
engine
exhaust
system,
proceed
as
follows:
Begining
with
aircraft
serials
18800833
a.
Remove engine
cowling
as required
so
that ALL
the ball
joint should
be inspected
in
ac-
surfaces
of the
exhaust
assemblies
can
be visually
cordance
with
Cessna
Single
Engine
inspected.
Service
Letter
SE 78-42.
NOTE
11A-73.
EXTREME
WEATHER
MAINTENANCE.
Especially
check
the areas
adjacent
to
welds
Refer
to
Section
11.
and slip joints. Look for gas deposits in sur-
rounding
area,
indicating
that
exhaust
gases
11IA-74.
COLD
WEATHER.
Refer
to Section
11.
are
escaping
through a
crack or hole
or
around
the
1A-75.
SEACOAST
AND
HUMID
AREAS.
Refer
to
Section 11.
b. After visual inspection, an air leak check should
be made
on the
exhaust
system
as
follows:
11A-76.
DUSTY
AREAS.
Refer
to Section
11.
1. Attach
the pressure
side of an
industrial
vacuum
cleaner
to the
tailpipe opening,
using
a rub-
11A-77
GROUND
SERVICE
RECEPTACLE
ber
plug
to effect
a
seal as
required.
Refer
to Section
16.
NOTE
The inside
of the vacuum
cleaner
hose should
be free of any contamination that might be
blown into
the engine
exhaust system.
SHOP NOTES:
11A-30