Craftsman 731, 388 owner manual Grass Catcher, Lubrication, To Change Engine OIL, AIR Filter

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To check blade balance, drive a nail into a beam or wall. Leave about one

inch of the straight nail exposed. Place center hole of blade over the head of

the nail. If blade is balanced, it should remain in a horizontal position. If either end of the blade moves downward,

sharpen the heavy end until the blade is balanced.

 

Crank shaft

Blade adapter

keyway

Crank

BoR

Hardened

Blade

washer edge adapter

GRASS CATCHER

The grass catcher may be hosed with water, but must be dry when used.

Check your grass catcher often for

damage or deterioration. Through normal use it will wear, If catcher needs

replacing, replace only with a manufac- turer approved replacement catcher. Give the lawn mower model number

when ordering.

ENGINE

LUBRICATION

Use only high quality detergent oil rated with API service classification SF-SJ.

Select the oil'sSAE viscosity grade according to your expected operating temperature.

SAE Vk_COSITY GRADES

NOTE: Although multi-viscosity oils (5W30, 10W30 etc.) improve starting in

cold weather, these multi-viscosity oils will result in increased oil consumption when used above 32°F. 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 lawn mower is not used for 25 hours in

one year.

Check the crankcase oil level before

starting the engine and after each five (5) hours of continuous use. Tighten oil plug securely each time you check the oil level.

TO CHANGE ENGINE OIL

NOTE: Before tipping lawn mower to drain oil, drain fuel tank by running engine until fuel tank is empty.

1.Disconnect spark plug wire from spark plug and place wire where it cannot come in contact with spark plug.

2.Remove engine oil cap; lay aside on a clean surface.

3.Tip lawn mower on its side as shown and drain oil into a suitable container. Rock lawn mower back and forth to

remove any oil trapped inside of engine.

4.Wipe off any spilled oil on lawn mower and on side of engine.

5.Fill engine with oil. (See "Add Oil" in the Operacion section of this manual.)

6.Reconnect spark plug wire to spark plug.

AIR FILTER

Your engine will not run properly and may be damaged by using a dirty air filter.

Replace the air filter every year, more often if you mow in very dusty, dirty conditions.

TO CLEAN AIR FILTER

t.Loosen screw and tilt cover to remove.

2.Carefully remove cartridge.

3.Clean by gently tapping on a flat

surface. If very dirty, replace cartridge.

ACAUTION: Petroleum solvents, such as kerosene, are not to be used to clean cartridge. They may cause deterioration of the cartridge. Do not oil cartddge. Do not use pressurized air to clean or dry cartridge.

4.Install cartridge, then replace cover making sure the tabs are aligned with the slots in the back plate. Fasten screw securely.

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Contents Jcraftsmanj Limited TWO Year Warranty on Craftsman Power Mower General OperationIV, Service II. Slope OperationDo not III. ChildrenLawn Mower Maintenance Lawn Mower PerformanceHowto SET Upyour Lawn Mower To Unfold Handle To Install AtiachmentsUpper To Remove Lawn Mower from CartonMeets Cpsc Safety Requirements Know Your Lawn MowerMulcherdoor To Adjust Cutting Height Howto Useyour Lawn Mower Engine Speed ControlEngine Zone Control Convert MowerTo Start Engine To Stop EngineBefore Starting Engine ADD OIL ADD GasolineMowingtips Mulching MowingtipsTion Chart Maintenance ScheduleLubrication General RecommendationsLawn Mower TiresBlade Care Engine Grass CatcherLubrication To Change Engine OILLawn Mower To Adjust CUI-FING Height To Adjust HandleCleaning MufflerLawn Mower HandleCarburetor Troubleshooting Chart Problem Cause Engine Fuel SystemEngine OIL CylinderLoss of power Rear of lawn mower Contact a Sears or other qualified service centerDirty air filter Buildup of grass, leavesCraftsman Rotary Lawn Mower - Model no Craftsman Rotary Lawn MOWER-- Model no UpperHaneCraftsman 4-CYCLE Engine ++++ ,7o+ 332 304 363@ 1210 689 OEmissions Label L.EASKETSeT CnAFrSMA,4-CYCLE Engine Craftsman Cycle Engine 231082Get it fixed, at your home or ours