Cessna 1973 172 - Each 500 Hours

SERVICING INTERVALS CHECK LIST
(Continued)
EACH 500 HOURS
VACUUM SYSTEM AIR FILTER (OPT) -- Replace filter element. Re-
place sooner if suction gage reading drops to 4. 6 in. Hg.
WHEEL BEARINGS -- Lubricate at first 100 hours and at 500 hours
thereafter. Reduce lubrication interval to 100 hours when operating in
dusty or seacoast areas, during periods of extensive taxiing, or when
numerous take-offs and landings are made.
AS REQUIRED
NOSE GEAR SHOCK STRUT — Fill with hydraulic fluid and inflate with
air to 45 psi.
ADDITIONAL SERVICE AND TEST REGULATIONS
Servicing Intervals of items in the preceding check list are
recommended by The Cessna Aircraft Company. Govern-
ment regulations may require that additional items be in-
spected, serviced or tested at specific intervals for various
types of flight operations. For these regulations, owners
should check with aviation officials in the country where the
aircraft is being operated.
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