Propeller Service; Oil Requirements; Fuel Requirements - Piper Cherokee Arrow II Pilots Operating Manual

ARROW I1
PROPELLER SERVICE
The spinner and backing plate should be cleaned and inspected frequently for cracks. The
propeller should be inspected before each flight for nicks, scratches, and corrosion. If found,
they should be taken care of as soon as possible by a rated mechanic, because nicks and scratches
cause areas of increased stress which can cause serious damage or loss of a propeller tip. The
back face of the blades should be painted when necessary with flat black paint to retard glare to
the pilot's eyes. To prevent corrosion the surface should be cleaned and waxed periodically.
OIL REQUIREMENTS
The oil capacity of the Lycoming engine is 8 quarts with a minimum safe quantity of 2 quarts.
It is recommended that engine oil be drained and renewed every 50 hours. The oil filter element
should be changed every 50 hours of operation. The interval between oil and oil filter changes
should not exceed a total of four months. Under unfavorable dusty conditions. the oil and oil filter
should be changed more frequently. Should fuel other than the specified octane rating for the
power plant be used, refer to the latest issue of Lycoming Service Letter No. L185 for additional
information and recommended service procedures.
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The following seasonal aviation oil grades and seasonal ambient temperature ranges are
recommended.
MIL-L-6082B MIL-L-2285 1
Average Ambient Mineral Ashless Dispersant
Temperature
SAE Grade
SAE Grades
All Temperatures
-
A
15W-50 or 20W-50
Above 80°F 6 0 60
Above 60°F 50 40 or 50
30°F to 90°F 40
40
0°F to 70°F 3 0 30,40 or 20W-40
0°F to 90°F 2OW-50 20W-50 or 15W-50
Below 10°F
20 30 or 20W-30
When operating temperatures overlap indicated ranges, use the lighter grade
oil.
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NOTE
Refer to the latest issue of Textron Lycoming Service Instruction 101 4
(Lubricating Oil Recommendations) for further information.
FUEL SYSTEM
The fuel screens in the strainer and the injector will require cleaning every 5 0 hour
inspection. The screen in the injector is located in the housing where the fuel inlet line connects
to the injector. The fuel strainer, located ahead of the firewall, is accessible for cleaning by
removal of the lower cowl. When the strainers are reassembled after cleaning, a small amount of
grease applied to the gasket will facilitate assembly.
FUEL REQUIREMENTS (AVGAS ONLY)
A minimum octane of 1001130 Aviation Grade fuel must be used in the Arrow 11.
Since the use of lower grades can cause serious engine damage in a short period of time,
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the engine warranty is invalidated by the use of lower octanes.
HANDLING AND SERVICING
REVISED: JULY 30,1990