Engine Induction Air Filter; Vacuum System Filter - Cessna T182 Series Service Manual

MODEL 182 & T182 SERIES SERVICE MANUAL
filter. Refill oil sump with recommended quantity
NOTE
and grade of ashless dispersant oil.
Newly over-
hauled engines should also be operated on aviation
Use care to prevent damage to filter element
grade straight mineral oil conforming to MIL-L-6082
when cleaning filter with compressed air.
for the first 25 hours.
b. Clean filter by blowing with compressed air
Lycoming 0-540 Series aircraft engines used in T182
(not over 100 psi) from direction opposite of normal
airplanes are delivered from Cessna with aviation
air flow. Arrows on filter case indicate direction of
grade straight mineral oil conforming to MIL-L-6082. normal air flow.
If it becomes necessary to add oil during the first 25
hours of engine operation use aviation grade straight
mineral oil of the recommended viscosity conforming
to MIL-L-6082. After the first 25 hours drain the
Do not use solvent or cleaning fluids to wash
engine oil and clean the oil pressure screen.
If an filter. Use only a water and household deter-
oil filter is installed, change filter. Refill oil sump
gent solution when washing the filter.
with aviation grade straight mineral oil of the recom-
mended viscosity, conforming to MIL-L-6082, and
c. After cleaning as outlined in step "b", the filter
continue to use until a total of 50 hours of engine
may be washed, if necessary, in a solution of warm
operation have accumulated or oil consumption has
water and a mild household detergent. A cold water
stabilized. Drain the engine oil and refill sump with
solution may be used.
recommended quantity and grade of ashless dispersant
oil.
Ashless dispersant oil MUST BE USED after
NOTE
first 50 engine hours, or consumption has stabilized.
The same procedure applies to newly overhauled
The filter assembly may be cleaned with com-
engines.
pressed air a maximum of 30 times or it may
be washed a maximum of 20 times.
A new
An oil quick-drain valve may be installed in the oil
filter should be installed after using 500 hours
drain port of the oil sump. This valve provides a
of engine operating time or one year, whichever
quick and cleaner method of draining the engine oil.
should occur first. However, a new filter should
To drain the oil, proceed as follows:
be installed at anytime the existing filter is
a. Operate engine until oil temperature is at a
damaged. A damaged filter may have sharp
normal operating temperature.
or broken edges in the filtering panels which
b. (With Quick-Drain Valve) Attach a hose to the
would allow unfiltered air to enter the induc-
quick-drain valve in oil sump.
Push up on quick-
tion system.
Any filter that appears doubtful,
drain valve until it locks open, and allow oil to drain
shall have a new filter installed in its place.
through hose into container.
c. (Without Quick-Drain Valve) Remove oil drain
d. After washing, rinse filter with clear water un-
plug from engine sump and allow oil to drain into a
til rinse water draining from filter is clear.
Allow
container.
water to drain from filter and dry with compressed
d. After engine oil has drained, close quick-drain
air (not over 100 psi).
valve or install and safety drain plug.
e. Remove and clean oil pressure screen or change
NOTE
external oil filter.
f. Service engine with correct quantity and viscos-
The filtering panels of the filter may become
ity of aviation grade engine oil.
distorted when wet, but they will return to
NOTE
their original shape when dry.
e. Be sure air box is clean, inspect filter.
If
Refer to inspection charts for intervals for
filter is damaged, install a new filter
changing oil and filter. See figure 2-4 for
f.
Install filter at entrance to air box with gasket
correct viscosities and quantities of aviation
on aft face of filter frame and with air flow arrows
grade oil.
on filter frame pointed in the correct direction.
2-24. ENGINE INDUCTION AIR FILTER.
The in-
2-25. VACUUM SYSTEM FILTER. The vacuum sys-
duction air filter keeps dust and dirt from entering
tem central air filter keeps dust and dirt from enter-
the induction system.
The value of maintaining the
ing the vacuum-operated instruments. Inspect filter
air filter in a good clean condition can never be over-
every 100 hours for damage. Replace filter every 500
stressed.
More engine wear is caused through the
hours of operation or whenever it becomes suffi-
use of a dirty or damaged air filter than is generally
ciently clogged to cause suction gage readings to
believed. The frequency with which the filter should
drop below 4.6 in. Hg. Do not operate the vacuum
be removed, inspected, and cleaned will be deter-
system with the filter removed, or a vacuum line
mined primarily by aircraft operating conditions.
A disconnected as particles of dust or other foreign
good general rule however, is to remove, inspect,
matter may enter the system and damage the vac-
and clean the filter at least every 100 hours of engine
uum-operated instruments.
operating time and more frequently if warranted by
operating condition. Under extremely dusty condi-
tions, daily servicing of the filter is recommended.
To service the induction air filter, proceed as follows:
Excessive smoking in the cabin will cause
a. Remove filter from aircraft.
premature filter clogging.
Revision 1
2-11