ENGINEOIL FILTER

Replacethe engine oil filter every season or everyother oil change if the tractor is usedmore than 100hours in one year.

AIR FILTER

Yourenginewill not run properlyusinga dirty air filter. Clean the foampre-cleaner after every 25 hours of operationor every season. Service papercartridgeevery

100 hoursof operationor every season, whicheveroccurs first.

Serviceair cleaner moreoften under

dusty conditions.

1. Loosenknob and removecover.

TO SERVICEPRE-CLEANER

2.Slidefoampre-cleaneroff cartridge.

3.Wash it in liquiddetergentand water.

4.Squeezeit dry in a clean cloth. Allow it to dry.

5.Saturateit in engineoil. Wrapit in

clean,absorbentcloth and squeezeto removeexcessoil.

TO SERVICECARTRIDGE

•Replacea dirty, bent,or damagedcar- tridge.

NOTE: Do not washthe papercartridge or use pressurizedair,as thiswill damage the cartridge.

1.Removenut and cartridgeplate.

2.Reinstallthe pre-cleaner(cleanedand oiled) over the papercartridge.

3.Checkrubberseal for damage and properpositionaroundstud. Replace if necessary.

4.Reassembleair cleaner,cartridge plate, and nut.

5.Reinstallair cleaner coverand secure bytightening knob.

Foam Cartrid¢

Pre-Cleaner

Rubber

KnobSeal

\

Cartridge

Plate

CLEAN AIR SCREEN

Air screen must be kept free of dirt and chaff to prevent engine damage from overheating. Clean with a wire brush or compressed air to remove dirt and stub- born dried gum fibers.

CLEAN AIR INTAKE/COOLING AREAS

To insure proper cooling, make sure the grass screen, cooling fins, and other

external surfaces of the engine are kept clean at all times.

Every 100 hours of operation (more often under extremely dusty, dirty conditions), remove the blower housing and other cool- ing shrouds. Clean the cooling fins and external surfaces as necessary. Make sure the cooling shrouds are reinstalled.

NOTE: Operating the engine with a blocked grass screen, dirty or plugged cooling fins, and/or cooling shrouds removed will cause engine damage due to overheating.

MUFFLER

Inspect and replace corroded muffler and spark arrester (if equipped) as it could cre- ate a fire hazard and/or damage.

SPARK PLUG(S)

Replace spark plug(s) at the beginning of each mowing season or after every 100 hours of operation, whichever occurs

first. Spark plug type and gap setting are shown in "PRODUCT SPECIFICATIONS"

section of this manual.

IN-LINE FUEL FILTER

The fuel filter should be replaced once each season. If fuel filter becomes

clogged, obstructing fuel flow to carbu- retor, replacement is required.

1.With engine cool, remove filter and plug fuel line sections.

2.Place new fuel filter in position in fuel line with arrow pointing towards carbu- retor.

3.Be sure there are no fuel line leaks and clamps are properly positioned.

4.Immediately wipe up any spilled gaso- line.

Clamp

Fuel Filt_

18

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Craftsman 917.273663 Muffler, Clean AIR Screen, Clean AIR INTAKE/COOLING Areas, Spark Plugs, IN-LINE Fuel Filter

917.273663 specifications

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