Craftsman 917.29921 owner manual Engine Lubrication

_iLCAUTION:Disconnect spark plug wire

before performing any maintenance 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 main-

tenance. Clean muffler area of all grass, dirt, and debris.

Do not touch hot muffler or cylinder fins as contact may cause burns.

5.Refill engine with oil. See "FILL

ENGINE WITH OIL" in the Operation section of this manual.

Oil

Drain

Plug

Oil Level

ENGINE

LUBRICATION

Use only high quality detergent oil rated with API service classification SG-SL

Oil Filler Plug

AIR CLEANER

Select the oil'sSAE viscosity grade ac- cording to your expected temperature.

SAE VISCOSITY GRADES

_10W-30m_

_	.sw-3o,mI			!
	=20	0	20	40		60	80	100°F
	=30	=20	=10	0	10	20		30 40 ° C

TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE

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 50 hours of op- eration or at least once a year if the tiller is

not used for 50 hours in one year. Check the 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.

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 se- curely.

4.Remove oil filler plug. Be careful not to allow dirt to enter the engine.

Service air cleaner cartridge every twenty-five hours, more often if engine is used in very dusty conditions.

1.Loosen air cleaner screw(s).

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 by tapping gently on a flat sur- face.

NOTE: If very dirty or damaged, replace cartridge.

5.Clean and replace cover. Tighten

screw(s) 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 air to clean or dry cartridge.

Air Cleaner

Cartridge

Pre-Cleaner

Cover

Ail C_eaner

Screws

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