Sears 917.38713 owner manual Cleaning, Muffler, Spark Plug

CUSTOM RESPONS BDLRTmES

ENGINE

LUBRICATION

Use only high quality detergent oil rated with APt service classification S F or SG, Select the oil'sSAE viscosity grade according to your expected operating temperature.

SAE VISCOSITY GRADES

"20 ° 0" 60 ° 80°

TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE

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 the first two hours of operation and every 25 hours thereafter or at least once a year if the lawn mower is net 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 (See Fig. 10)

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

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

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

oTip lawn mower on its side and drain oil into a suitable container. Rock lawn mower back and forth to remove any oil trapped inside of engine.

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

•Fill engine with oil. Fill only to the "FULL" line on the dipstick. DO NOT OVER FILL

o Replace engine oil cap,

•Reconnect spark plug wire to spark plug

CONTAINER

FIG. 10

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 mew in very dusty, dirty condition& Do not wash air filter.

TO CHANGE AIR FILTER (See Fig_ 11)

oRemove the air filter cover by turning counterclockwise to the stop and pull away from collar.

Remove filter from inside of cover.

oClean the inside of the cover and the collar to remove any dirt accumulation°

°Insert new filter into cover_

Put air filter cover and filter into collar aligning the tab with the slot.

°Push in on cover and turn clockwise to tighten,

COLLAR

COUNTER-

CLOCKWISE

TO REMOVE

SLOT

AIR FILTER COVER TO TIGHTEN

FIG. 11

MUFFLER

Inspect and replace corroded muffler as it could create a fire hazard and/or damage,

SPARK PLUG

Change your spark plug each year to make your engine start easier and run better. Set spark plug gap at .030 inch.

CLEANING

IMPORTANT: FOR BEST PERFORMANCE, KEEP MOWER HOUSING FREE OF BUILT-UP GRASS AND

TRASH CLEAN UNDERSIDE OF MOWER HOUSING AFTER EACH USE,

from spark plug and place wire where it

cannot come in contact with the spark

I & CAUTION: Disconnect spark plug wire plug.

Turn lawn mower on its side,. Make sure air filter and carburetor are up, Clean the underside of your lawn mower by scraping to remove build-up of grass and trash.

°Clean engine often to keep trash from accumulating. A clogged engine runs hotter and shortens engine life.

oKeep finished surfaces and wheels free of all gasoline, oi!, etc.

We DO NOT recommend using a garden hose to clean lawn mower unless the electrical system, muffler, air filter and carburetor are covered to keep water ouL Water in engine can result in shortened engine life.

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