Servicing; Engine Oil; Fuel - Cessna 150 COMMUTER 1976 Pilot Operating Handbook

SECTION 8
HANDLING, SERVICE
& MAINTENANCE
CESSNA
MODEL 150M
SERVICING
In addition to the PREFLIGHT INSPECTION covered in Section 4,
COMPLETE servicing, inspection, and test requirements for your air-
plane are detailed in the Service Manual. The Service Manual outlines
all items which require attention at 50, 100, and 200 hour intervals plus
those items which require servicing, inspection, and/or testing at special
intervals.
Since Cessna Dealers conduct all service, inspection, and test proce-
dures in accordance with applicable Service Manuals, it is recommended
that you contact your Cessna Dealer concerning these requirements and
begin scheduling your airplane for service at the recommended intervals.
Cessna Progressive Care ensures that these requirements are accom-
plished at the required intervals to comply with the 100-hour or ANNUAL
inspection as previously covered.
Depending on various flight operations, your local Government Avia-
tion Agency may require additional service, inspections, or tests. For
these regulatory requirements, owners should check with local aviation
officials where the airplane is being operated.
For quick and ready reference, quantities, materials, and specifica-
tions for frequently used service items are as follows.
ENGINE OIL
GRADE -- Aviation Grade SAE 40 Above 4° C(40°F).
Aviation Grade SAE 10W30 or SAE 20 Below 4°C (40°F).
Multi-viscosity oil with a range of SAE 10W30 is recommended for
improved starting in cold weather. Ashless dispersant oil, conform-
ing to Continental Motors Specification MHS-24A, must be used.
NOTE
Your Cessna was delivered from the factory with a corro-
sion preventive aircraft engine oil. If oil must be added
during the first 25 hours, use only aviation grade straight
mineral oil conforming to SpeCification No. MIL-L-6082.
CAPACITY OF ENGINE SUMP -- 6 Quarts.
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Do not operate on less than 4 quarts. To minimize loss of oil through
breather, fill to 5 quart level for normal flights of less than 3 hours.
For extended flight, fill to 6 quarts. These quantities refer to oil
dipstick level readings. During oil and oil filter changes, one addi-
tional quart is required when the filter element is changed.
CESSNA
MODEL 150M
SECTION 8
HANDLING, SERVICE
&
MAINTENANCE
OIL AND OIL FILTER CHANGE --
After the first 25 hours of operation, drain engine oil sump and clean
the oil pressure screen. If an oil filter is installed, change the filter
element at this time. Refill sump with straight mineral oil and use
until a total of 50 hours has accumulated or oil consumption has sta-
bilized; then change to dispersant oil. On airplanes not equipped with
an oil filter drain the engine oil sump and clean the oil pressure
screen each 50 hours thereafter. On airplanes which have an oil fil-
ter the oil change interval may be extended to 100-hour intervals,
pr;viding the oil filter element is changed at 50-hour intervals.
Change engine oil at least every 6 months even though less than the
recommended hours have accumulated. Reduce intervals for pro-
longed operation in dusty areas, cold climates, or when short flights
and long idle periods result in sludging conditions.
FUEL
GRADE (AND COLOR) -- 80/87 Minimum Grade Aviation Fuel (red).
Alternate fuels which are also approved are:
100/130 Low Lead AVGAS (green). (Maximum lead content of 2 cc
per gallon. )
100/130 Aviation Grade Fuel (green). (Maximum lead content of
4. 6 cc per gallon. )
NOTE
When substituting a higher octane fuel, low lead AVGAS
100 should be used whenever possible since it will result
in less lead contamination of the engine.
CAPACITY EACH STANDARD TANK -- 13 Gallons.
CAPACITY EACH WNG RANGE TANK -- 19 Gallons.
NOTE
Due to cross-feeding between fuel tanks, the tanks should
be re-topped after each refueling to assure maximum
capacity.
LA NDING GEAR
NOSE WHEEL TIRE PRESSURE -- 30 PSI on 5.00-5, 4-Ply Rated Tire.
MA IN WHEEL TIRE PRESSURE -- 21 PSI on 6.00-6, 4-Ply Rated Tires.
NOSE GEAR SHOCK STRUT --
Keep filled with MIL-H-5606 hydraulic fluid and inflated with air to
20 PSI. Do not over-inflate.
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