Piper Cherokee Six - Page 53

*PIPER CHEROKEE SIX SERVICE MANUAL
2-48. OIL SYSTEM. (ENGINE.)
2-49. SERVICING
OIL SYSTEM. The engine oil level should
be checked before each flight
and
changed after 50 hours of engine operation.
During oil change, the oil suction
screen(s)
should be removed and cleaned,
and when installed, the oil filter cartridge
replaced. Intervals
between oil
changes can be increased as much as
100% on engines equipped with full flow
(cartridge type) oil filters provided
the element is replaced each 50 hours
of operation. The
engine manufacturer
does not recommend oils by brand names.
Use a quality brand Aviation
Grade
Oil of the proper
season viscosity.
For information on
the use of ashless dispersant
oil.
refer to Paragraph 2-55 and/or the latest revision of Lycoming Service Instruction Letter 1014.
CAUTION
Do not
introduce any trade additive
to the basic lubricant.
2-50. FILLING
OIL SUMP. The oil sump should normally
be filled with oil to the mark on
the
engine dipstick. The quantity of oil
required for the engines may be found
in Table II-I. The
specified grade of oil
may be found in Table II-III, the Lubrication
Chart, or on the right cowl
panel
or each engine oil filler access door. To
service the engine with oil, open the quick
release
access
door on top
of the cowl and
remove the
oil filler cap with
dipstick.
2-51. DRAINING
OIL SUMP. To
drain the oil sump,
provide a suitable
container with a
minimum capacity
of that required to fill the sump. Remove
the engine cowl and open the oil
drain
valve located on the underside of the
engine by pushing the arms of the drain
up and
turning counterclockwise.
This will hold the drain
in the open position. It is recommended
the
engine be warmed to operating temperature
to ensure complete draining
of the old oil.
2-52.
OIL SCREENS. (SUCTION.) The oil
suction screen is located on the bottom
aft end of
the engine sump, installed
horizontally. To remove, cut the safety
wire and remove the hex
head plug. The
screen should be cleaned at each
oil change to remove any accumulation
of
sludge and to examine for metal filings
or chips. If metal particles are found
in the screen, the
engine should be examined
for internal damage. After
cleaning and inspection, place the
screen
inside the recess in the hex head plug
to eliminate possible damage to the screen.
Insert
the screen into the housing
and when certain that the screen is properly
seated, tighten and
safety
the plug with MS-20995-C41
safety wire.
2-53. OIL SCREEN.
(PRESSURE.) The oil pressure screen,
located in a housing on the
accessory case of the engine,
between the magnetos, should be cleaned
at each oil change to
remove any accumulation of sludge and to examine for metal filings or chips. If metal particles
are found in the screen, the engine should be examined for internal damage. When reinstalling
the screen, it is recommended that a new gasket be used. Ascertain that the screen fits flush with
the base surface
of the screen housing. Position
housing on mounting pad and install
attachment bolts. Torque bolts within 50 to 70 inch pounds.
HANDLING
AND SERVICING
Revised: 11/4/83
1C5