Cessna T188C - Page 33

MODEL 188 & T188 SERIES SERVICE MANUAL
A recommended
procedure
for cleaning
an engine and
2-34. PROPELLER.
Wash
hub and blades
with a
accessories is as follows. soft cloth and Stoddard cleaning solvent or equivalent.
CAUTION- then dry thoroughly with compressed air. Wipe pro-
peller
occasionally with
an oily cloth, then wipe
with
a dry cloth. In salt water areas this will assist in
Do not attempt
to wash an engine which
is still corrosion proofing
th propeller. Check blades
and
hot
or running. Allow the engine
to cool before hub
periodically for oxidation and
corrosion.
cleaning.
When cleaning propellers, take the following pre-
a. Remove
engine
cowling.
cautions:
b. Use fresh water for wash-down when the engine
is contaminated with salt
or corrosive chemicals.
a. Be sure ignition
switch is off.
A cleaning agent such
as described previously may
b. Make sure engine has
cooled completely. When
then be used to remove oil and grease. moving propeller, DO NOT STAND IN LINE OF
BLADE.
CAUTION
c. Avoid using excessive
amount of liquid cleaner
as it
may splatter or
run down the
blade and enter
the
Care should be exercised to not direct cleaning propeller hub or engine.
agents or water streams at openings on the d. After cleaning, check the area around the propeL-
starter, magnetos, alternator, "vacuum" pump ler hub to be sure all cleaning solution is removed.
or turbocharger
relief valve.
2-37,
c. Thoroughly rinse with clean, warm water to See Section 13 for information on oil filled hubs.
remove
all traces
of cleaning
agents.
2-35. WHEELS. The landing gear wheels should be
CAUTION washed periodically and examined for corrosion,
chipped paint, and cracks or dents in the wheel cast-
Cleaning agents
should never be left on
ings. Sand smooth,
prime and repaint minor defects.
engine
components
for an extended
period
of
time. Failure
to remove
them
may
cause damage to components such as 2-36. LUBRICATION.
Neoprene seals and silicone fire sleeves
and could cause additional corrosion.
2-37. REQUIREMENTS. Lubrication requirements
are
specified
in the
lubrication
chart
in
figure
2-5.
d. Completely dry the engine and accessories using
d. Completely dry the engine and accessories using Before adding grease to fittings,wipe off all dirt.
clean, dry compressed air.
Lubricate until new grease appears around parts be-
e.
If desired,
the engine
cowling
may
be washed
ing lubricated,
when
wipe
off
excess
grease.
Lubri-
with the same cleaning
agents, then rinsed thorough-
cate tailwheel every
25 hours. When operating
in
ly and wiped dry. dusty conditions, mud or water, more frequent lubri-
f.
Reinstall
engine
cowling.
cation
is
recommended.
WARNING
WARNING
2-38.
ROD
END
BEARINGS.
Periodic
inspection
For maximum safety, check that the magneto and lubrication is required to prevent corrosion of
switches are OFF, the throttle is closed, the the bearing in the rod end. At each 100 hour inspec-
mixture control is in the idle cut-off position, tion, disconnect the control rods pt the aileron and
and the airplane
is secured
before rotating
the
flap and inspect
each rod end
for corrosion.
If no
propeller by hand. Do not
stand within the arc corrosion
is found, wipe the surface
of the rod end
of the propeller
blades while
turning the
pro-
balls with a general
purpose
oil and rotate
the ball
peller.
freely to
distribute
the oil over
its entire
surface
and connect
the control rods
to their respective
units.
g. Before
starting
the engine,
rotate
the propeller
If corrosion
is detected
during
the inspection,
install
by hand
no less than
four complete
revolutions.
new rod
ends.
Revision 1 2-11