Craftsman 900 Serie Manual Del Usuario página 13

_CAUTION:Disconnect spark plug wire
before performing any maintenance (except
carburetor adjustment) to prevent accidental
starting of engine.
Prevent fires! Keep the engine free of grass,
leaves, spilled oil, or fuel. Remove fuel from
tank before tipping unit for maintenance.
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 SG-SL Selectthe
oil's SAE viscosity grade according to your
expected temperature.
SAE VISCOSITY GRADES
F
-20 0 30 32 40 60 80 100
c -_0 -2'0 -1; ; 1'0 _0 10 4;
TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE
oilvisc chart1 e
NOTE: Although multi-viscosity oils (5W-
30, 10W-30, etc.) improve starting in cold
weather, these m ulti-viscosity oils will result in
increased oil consumption when used above
32°F (0°C). Checkyour engine oil level more
frequentlyto avoid possible engine damage
from running low on oil.
Change the oil after every 50 hours of opera-
tion or at least once a year if the tiller is not
used for 50 hours in one year.
Checkthe crankcase oil level before starting
the engine and after each five (5) hours of
continuous use. Add SAE 30 motor oil or
equivalent. Tighten oil filler plug 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 SG-SL
• Be sure tiller is on level surface.
• Oil will drain more freely when warm.
• Catch oil in a suitable container.
1. Remove drain plug.
2. Tip tiller forward to drain oil.
3. After oil has drained completely, replace
oil drain plug and tighten securely.
4. Remove oil filler plug. Be careful not to
allow dirt to enter the engine.
5. Refill enginewith oil. See "FILL ENGINE
WITH OIL " in the Operation section of
this manual.
Oil Drain
Plug
Oil Level
Oil Filler Plug
AIR CLEANER
Service air cleaner cartridge every 50 hours,
more often if engine is used in very dusty
conditions.
1. Loosen air cleaner screw.
2. Remove air cleaner cover.
3. Carefully remove air cleaner cartridge.
Be careful. Do not allow dirt or debris to
fall into carburetor.
4. Clean bytapping gentlyon afiatsurface.
NOTE: If very dirty or damaged, replace
cartridge.
5. Clean and replace cover. Tighten screw
securely.
_I_CAUTION: 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 airto clean or dry cartridge.
Air Cleaner
Cartr e
Cover
Air
Screw
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