SERVICI N G I NTERVALS C H ECK LIST
EACH 5 0 HOURS
BATTERY--Check and service. Check oftener (at least every
30
days)
if operating in hot weather.
ENGINE OIL AND OIL FILTER- -Change engine oil and replace filter
element.
H
optional oil filter is not installed, change oil and clean screen
every
25
hours. Change engine oil at least every four months even though
less than
50
hours have been accumulated. Reduce periods for prolonged
operation in dusty areas, cold climates, or when short flights and long
idle periods result in sludging conditions.
NOTE
After first
20
to
30
hours of engine operation, an initial
oil change should be made to remove "break-in" oil and
change the filter,
if
installed.
CARBURETOR Ara FILTER--Clean or replace. Under extremely dusty
conditions, daily maintenance of the filter is recommended.
NOSE GEAR TORQUE LINKS--Lubricate. When operating under dusty
conditions, more frequent lubrication is recommended.
EACH 1 0 0 HOURS
BRAKE MASTER CYLINDERS- -Check and fill.
SHIMMY DAMPENER--Check and fill.
FUEL STRAINER--Disassemble and clean.
FUEL TANK SUMP DRAINS--Drain water and sediment.
FUEL LINE DRAIN PLUG--Drain water and sediment.
VACUUM SYSTEM OIL SEPARATOR (OPT)--Clean.
SUCTION RELIEF VALVE INLET SCREEN (OPT)- -Clean.
SPARK PLUGS - - Clean, test and regap,
EA CH 5 0 0 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 there
after. 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 RE QUIRED
NOSE GEAR SHOCK STRUT--Keep filled with fluid and inflated to
20
psi.
Do not over-inflate.
4-7