Craftsman 917.2922 - Manual (Page 12)

Disconnect spark plug wire before per­
forming any maintenance (except carbure­
tor adjustment) to prevent accidental start­
ing of engine.
Prevent fires! Keep the engine free of
grass, leaves, spilled oil, or fuel. Remove
fuel from tank before tipping unit for main­
tenance. Clean muffler area of all grass,
dirt, and debris.
Do not touch hot muffler or cylinder fins as
contact may cause burns.
ENGINE
LUBRICATION
Use only high quality detergent oil rated
with API service classification SF, SG or
SH. Select the oil's SAE viscosity grade
according to your expected temperature.
Refill engine with oil. See “FILL
ENGINE WITH OIL ” in the Operation
section of this manual.
NOTE; Although multi-viscosity oils (5W-
30. 10W-30, etc.) improve starting in cold
weather, these multi-viscosity oils will
result in increased oil consumption when
used above 32°F (0“C). Check your
engine oil level more frequently to avoid
possible engine damage from running low
on oil.
Change the oil after every 25 hours of
operation or at least once a year if the tiller
is not used for 25 hours in one year.
Check the crankcase oil level before start­
ing the engine and after each five (5)
hours of continuous use. Add SAE 30
motor oil or equivalent. Tighten oil filler
piug securely each time you check the oil
level.
TO CHANGE ENGINE OIL
Determine temperature range expected
before oil change. All oil must meet API
service classification SF, SG or SH.
* Be sure tiller is on level surface.
« Oil will drain more freely when warm.
® Catch oil in a suitable container.
® Remove drain piug.
o Tip tiller forward to drain oil.
» After oil has drained completely, replace
oil drain plug and tighten securely,
o Remove oil filler plug. Be careful not to
allow dirt to enter the engine.
AIR CLEANER
Service air cleaner cartridge every twenty-
five hours, more often if engine is used in
very dusty conditions,
® Loosen air cleaner screws, one on each
side of cover.
« Remove air cleaner cover,
e Carefully remove air cleaner cartridge.
Be careful Do not allow dirt or debris to
fail into carburetor.
® Clean by tapping gently on a flat sur­
face.
® If very dirty or damaged, replace car­
tridge.
o Clean and replace cover. Tighten screws
securely.
A c AUTION: Petroleum solvents, such
as kerosene, are not to be used to clean
cartridge. They may cause deterioration of
the cartridge. Do not oil cartridge. Do not
use pressurized air to clean or dry car­
tridge.
COOLING SYSTEM
Your engine is air cooled. For proper
engine performance and long life keep
your engine clean.
o Clean air screen frequently using a stiff-
bristled brush.
® Remove blower housing and clean as
necessary.
•» Keep cylinder fins free of dirt and chaff.
12