Craftsman 917O251550 owner manual Customer, Muffler, Spark Plugs, Engine OIL Filter

CUSTOMER

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CLEAN AIR SCREEN (See Fig. 15)

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 stubborn 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 cooling 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 re- moved will cause engine damage due to overheating_

AIR FILTER (See Fig. 16)

Your engine will not run properly using a dirty air filter° Clean the foam pre-cleaner after every 25 hours of opera- tion or every season° Service paper cartridge every 100 hours of operation or'every season, whichever occurs first. Service air cleaner more often under dusty conditions.

•Loosen knob and remove coverL

TO SERVICE PRE-CLEANER

•Slide foam pre-cleaner off cartridge.

•Wash it in liquid detergent and water

•Squeeze it dry in a clean cloth.

•Saturate it in engine oil. Wrap it in clean, absorbent cloth and squeeze to remove excess oil.

TO SERVICE CARTRIDGE

•Remove nut and cartridge plate..

•Gently tap the flat side of the paper cartridge to dis- lodge dirL Do not wash the paper cartridge or'use pressurized air, as this wil! damage the cartridge,, Replace a dirty, bent, or damaged cartridge_

•Reinstall the pre-cleaner (cleaned and oiled) over the paper cartridge.

•Check rubber seat for damage and proper position around stud_ Replace if necessary.

•Reassemble air cleaner, cartridge plate, and nuL

•Reinstall air cleaner cover and secure by tightening knob.

CARTRIDGE

FOAM

PRE*CLEANER

CARTRIDGE

PLATE "X,

RUBBER

SEAL

NUT

MUFFLER

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

SPARK PLUGS

Replace spark plugs at the beginning of each mowing season or after every i00 hours of operation, whichever comes first. Spark plug type and gap setting are shown in "PRODUCT SPECIFICATIONS" on page 3 of this manual.

ENGINE OIL FILTER

Replace tile engine oil filter ever,.#season or every otheroil change if the tractor is used more than 100 hours in one yearL

IN-LINE FUEL FILTER (See Fig. 17)

The fuel filter should be replaced once each season. If fuel filter becomesclogged, obstructingfuel flow to carburetor, replacement is required.

•With engine cool, remove filter and plug fuel line sections_

°Place new fuel filter in position in fuel line with arrow

pointing towards carburetor.

•Be sure there are no fuel line leaks and clamps are properly positioned_

•Immediately wipe up any spiffed gasoline.

FIG. 17

CLEANING

*Clean engine, battery, seat, finish, etc_ of all foreign matter.

•Keep finished surfaces and wheels free of all gasoline, oil, etc.

•Protect painted surfaces with automotive type wax_

We do not recommend using a garden hose to clean your tractor unless the electrical system, muffler, air filter and carburetor are covered to keep water out. Water in engine can result in a shortened engine lifeo

FIG. 16 18