8.17 PROPELLER SERVICE
The spinner and backing plate should be frequently 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 the Lycoming O-235-L2C or O-235-L2A engine is 6
quarts, and the minimum safe quantity is 2 quarts. It is recommended that
the oil be changed every 50 hours and sooner under unfavorable operating
conditions. 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 and the specified octane fuel
is used. 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 and
Lycoming Service Instruction No. 1014 for additional information and
recommended service procedures. The following grades of aviation engine
oil are recommended for the specified temperatures:
Average Ambient MIL-L-6082B MIL-L-22851
Air Temperature Straight Mineral Reference Ashless Dispersant
For Starting SAE Grades Aviation Grades SAE Grades
Above 60°F 50 100 20W-40 or 20W-50
30° to 90°F 40 80 20W-40
0° to 70°F 30 65 20W-40 or 20W-30
Below 10°F 20 — 20W-30
Refer to Lycoming Service Instruction 1014, latest revision, when
changing from straight mineral oil to ashless dispersant oil.
PIPER AIRCRAFT CORPORATION SECTION 8
PA-38-112, TOMAHAWK HANDLING, SERV & MAINT
ISSUED: JANUARY 20, 1978 REPORT: 2126
REVISED: JUNE 6, 1979 8-11
8.17 PROPELLER SERVICE
The spinner and backing plate should be frequently 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 the Lycoming O-235-L2C or O-235-L2A engine is 6
quarts, and the minimum safe quantity is 2 quarts. It is recommended that
the oil be changed every 50 hours and sooner under unfavorable operating
conditions. 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 and the specified octane fuel
is used. 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 and
Lycoming Service Instruction No. 1014 for additional information and
recommended service procedures. The following grades of aviation engine
oil are recommended for the specified temperatures:
Average Ambient MIL-L-6082B MIL-L-22851
Air Temperature Straight Mineral Reference Ashless Dispersant
For Starting SAE Grades Aviation Grades SAE Grades
Above 60°F 50 100 20W-40 or 20W-50
30° to 90°F 40 80 20W-40
0° to 70°F 30 65 20W-40 or 20W-30
Below 10°F 20 — 20W-30
Refer to Lycoming Service Instruction 1014, latest revision, when
changing from straight mineral oil to ashless dispersant oil.
PIPER AIRCRAFT CORPORATION SECTION 8
PA-38-112, TOMAHAWK HANDLING, SERV & MAINT
ISSUED: JANUARY 20, 1978 REPORT: 2126
REVISED: JUNE 6, 1979 8-11
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