Craftsman 917.27390 Operator's Manual page 21

6. Unlock drain valve by pushing inward
and turning counterclockwise.
7. To open, pull out on the drain valve.
8. After oilhas drained completely, close and
lock the drain valve by pushing inward
and turning clockwise until the pin is in
the locked position as shown.
9. Removethedraintubeandreplacethecap
onto to the bottom fitting of the drain valve.
10. Refill engine with oil through oil fill dipstick
tube. Pour slowly. Do not overfill. For
approximate capacity see "PRODUCT
SPECIFICATIONS' sectionofthismanual.
11.Use gauge on oil fill cap/dipstick for
checking level. Insert dipstick into the
tube and rest the oil fill cap on the tube.
Do notthread the cap onto the tube when
taking reading. Keep oil at "FULL line
on dipstick. Tighten cap onto the tube
securely when finished.
ENGINE OIL FILTER
Replace the engine oil filter every season or
every other oil change if the tractor is used
more than 100 hours in one year.
NOTE: If needed, remove lower dash covers
using steps from "Lower dash cover removal"
section of this manual.
AIR FILTER
Your engine will not run properly using a
dirty air filter. Clean the foam pre-cleaner
after every 25 hours of operation or every
season. Service paper cartridge every
100 hours of operation or every season,
whichever occurs first.
Service air cleaner more often under dusty
conditions.
1. Remove cover.
TO SERVICE PRE-CLEANER
2. Wash it in liquid detergent and water.
3. Squeeze it dry in a clean cloth.
4. Saturate it in engine oil. Wrap it in
clean, absorbent cloth and squeeze to
remove excess oil.
NOTE: If very dirty or damaged, replace
pre-cleaner.
TO SERVICE CARTRIDGE
1. Clean cartridge by tapping gently on
flat surface. If very dirty or damaged,
replace cartridge.
2. Reinstall precleaner cartridge, cover
and secure.
IMPORTANT: Petroleum solvents, such
as kerosene, are not to be used to clean
the cartridge. They may cause deteriora-
tion of the cartridge. Do not oil cartridge.
Do not use pressurized air to clean or dry
cartridge.
Cover
Cartridge
=
Foam
i
Pre-Cleaner-—~ y
CLEAN AIR SCREEN
The air screen is over the air intake blower
located on top of engine. The air screen
must be kept free of dirt and chaff to prevent
engine damage from overheating. Clean with
a wire brush or compressed air to remove
dirt and stubborn dried gum fibers.
ENGINE COOLING SYSTEM
To ensure proper cooling, make sure the
grass screen, cooling fins, and other exter-
nal surfaces of the engine are kept clean
at all times.
Every 100 hours of operation (more often
under extremely dusty, dirty conditions),
remove the blower housing and other cooling
shrouds. Clean the cooling fins and external
surfaces as necessary. Ensure the cooling
shrouds are reinstalled.
NOTE: Operating the engine with a blocked
grass screen, dirty or plugged cooling fins,
and/or cooling shrouds removed will cause
engine damage due to overheating.
IN-LINE FUEL FILTER
The fuel filter should be replaced once each
season. If fuel filter becomes clogged, ob-
structing fuel flow to carburetor, replacement
is required.
1. With engine cool, remove filter and plug
fuel line sections.
2. Place new fuel filter in position in fuel line
with arrow pointing towards carburetor.
3. Be sure there are no fuel line leaks and
clamps are properly positioned.
4. immediately wipe up any spilled gasoline.