8.17 PROPELLER SERVICE
The spinner and backing plate should be cleaned and inspected for cracks. Before each flight the propeller
should be inspected for nicks, scratches, and corrosion. If found, they should be repaired as soon as possible by a
rated mechanic, since a nick or scratch causes an area of increased stress which can lead to serious cracks or the
loss of a propeller tip. The back face of the blades should be painted when necessary with flat black paint to retard
glare. To prevent corrosion, the surface should be cleaned and waxed periodically.
8.19 OIL REQUIREMENTS
The oil capacity of engine is 8 quarts, and the minimum safe quantity is 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 (4) months. Under
unfavorable dusty conditions, the oil and oil filter should be changed more frequently.
The following seasonal aviation oil grades and seasonal ambient temperature ranges are recommended.
MIL-L-22851
Average Ambient
MIL-L-6082B
Ashless Dispersant
Temperature
SAE Grade
SAE Grades
All Temperatures
—
15W-50 or 20W-50
Above 80°F
60
60
Above 60°F
50
40 or 50
30°F to 90°F
40
40
0°F to 70°F
30
30, 40 or 20W-40
Below 10°F
20
30 or 20W-30
When operating temperatures overlap indicated ranges, use the lighter grade oil.
NOTE
Refer to the latest issue of Textron Lycoming Service Instruction 1014 (Lubricating
Recommendations) for further information.
8.21 FUEL SYSTEM
(a) Servicing Fuel System
At every 50 hour inspection, the fuel screens in the strainer, in the electric fuel pumps, and at the
carburetor inlet must be cleaned.
(b)
Fuel Requirements (AVGAS ONLY)
The minimum aviation grade fuel for the PA-28-161 is 100. Since the use of lower grades can
cause serious engine damage in a short period of time, the engine warranty is invalidated by the use of
lower octanes.
Whenever 100 or 100LL grade fuel is not available, commercial grade 100/130 should be used.
(See Fuel Grade Comparison Chart, Page 8-12.) Refer to the latest issue of Lycoming Service
Instruction No. 1070 for additional information.
ISSUED: DECEMBER 16, 1976
REPORT:VB-880
REVISED: APRIL 17, 1989
8-11
PIPER AIRCRAFT CORPORATION
SECTION 8
PA-28-161, CHEROKEE WARRIOR II
HANDLING, SERVICING AND MAINTENANCE
Summary of Contents for CHEROKEE WARRIOR II
Page 253: ...Piper PA 28 161 28 7916159 N3067D ...