Craftsman 247.388240 owner manual To Change Engine Oil

Page 13

Engine OII

Only use high quality detergent oil rated with API service classificationSF, SG or SH. Select the oil'sviscositygrade accordingto your expected operating temperature. Refer to page 10 of this manual for viscositychad.

Stop engine and wait several minutesbefore checking oil level. With engine on level ground, the oil must be to FULL mark on dipstick. Change engine oil afterthe first five hours of

operation, and every twenty-five hours thereafter.

To Change Engine Oil

Change oil after first two operating hotJrsand every

25operating hoursthereafter. Drain oil while engine is warm. Followthe instructionsgivenbelow.

Tip the mower with the spark plug facingup. Place a container under the dipstick.Pull the dipstickout of oil fill.

Drain the oil sump empty, collectingoil in an approved container.

Fill oil sump with 21 ounces of fresh SAE 30 oil. Refer to page 10 of this manual for oilfill-up instructions.

Air Cleaner

The air cleaner prevents damagingdirt, dust,etc., from enteringthe carburetor and beingforced into the engine and is importantto engine life and performance. Replace filter once a year or every 100 operating hours, more often ifused in extremelydusty conditions.

To Service Air Cleaner:

Turn air filter cover counterclockwiseand remove the cover and filter from the flange. See Figure 13. Discard filter.

r Cleaner

Filter Retainer

Figure 13

Clean cover and flange thoroughly.

Insert the new filter into the cover.

Place the cover and the filter against flange with tab on the cover inserted into lower left

corner of slot in flange. See Figure 13. Push cover firmly against flange and turn it clockwise as far as it will go. Make sure that the retainers are locked around the flange. See

Figure 13.

air cleaner completely assembled.

,_ WARNING: Never run the engine without

Clean Engine

Clean engine periodically. Remove dirt and debris with a cloth or brush.

Frequently remove grass clippings, dirt and debris from cooling fins, air intake screen and levers and linkage. This will help ensure adequate cooling and correct engine speed.

NOTE: Do not clean with a forceful spray of water as water could contaminate the fuel system.

Spark Plug

Clean spark plug and reset gap to .030" at least once a season or every 50 hours of operation.

See Figure 14. Spark plug replacement is recommended at the start of each season. Refer to engine parts listfor correct spark plug type.

NOTE: Do not sandblast spark plug. Spark p/ug shouldbe cleaned by scraping or wire brushing and washing with a commercial solvent.

Feeler gap .030"

Spark Plug

Figure 14

Muffler

&WARNING: Do not operate the lawn mower without a muffler, or tamper with

the exhaust system. Damaged mufflers or spark arresters could create afire hazard. Temperature of muffler and nearby areas may exceed 150 ° F(65°C).

13

Page 12 Page 14
Image 13
Page 12 Page 14
Contents Sears, Roebuck & Co., Hoffman Estates, IL 60179, U.S.A CraftsmrnProduct Specifications General Operation Slope Operation ServiceChildren Your Responsibility Siavertichtanoho or a TR Removing Unit From Carton Disconnecting Spark PlugLoose Pads Assembling HandleAttaching Discharge Chute Attaching Starter RopeAssembling Grass Catcher Attaching Grass Catcher to MowerKnow Your Lawn Mower Meets Cpsc Blade Safety StandardsStarting Engine Gas And Oil Fill-UpUsing Grass Catcher Using Your Lawn MowerHeight Adjustment Engine Maintenance CleaningGeneral Recommendations Ustomer ResponsibilitiesTo Change Engine Oil Lubrication Blade CareServicing Blade Engine AdjustmentsAdjusting Cutting Height Adjusting Handle HeightMower EngineOther Problem Possible Cause Sears Craftsman 4.0 H.P. Lawn Mower Model 731-1405 300 This en inecouldhavebeenbuittwith590694starter Carburetor No Recoil Starter Part
Top Page Image Contents