Sears 917.256543 manual Customer, Clean, AIR INTAKF.JCOOLiNG, Areas, Spark Plugs

Models: 917.256543

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CUSTOMER

RESPONSiBILITiES

 

CLEAN AiR SCREEN (See Fig. 16)

CLEAN

AIR INTAKF.JCOOLiNG

AREAS

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°

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 firsL

Service air cleaner more often under dusty conditions.

o Remove knob and cover'.

oRemove wing nut and air cleaner from base..

TO SERVICE PRE-CLEANER

o Slide foam pre-cleaner off cartridge. o Wash it in liquid detergent and water. o Squeeze it dry in a clean cloth.

oSaturate it in engine oil Wrap it in clean, absorbent cloth and squeeze to remove excess oil

TO SERVICE CARTRIDGE

oGently tap the flat side of the paper cartridge to dis- lodge dirt.. Do not wash the paper cartridge or use pressurized air, as this will damage the cartridge. Replace a dirty, bent, or damaged cartridge°

oReinstall the pre-cieaner (cleaned and oited) over the paper cartridge=

oReassemble air cleaner, wing nut, cover and tighten knob securely_

To insure proper cooling, make sure the grass screen, cooling fins, and other external surfaces of the engine are kept clean at al! times°

Every 100 hours of operation (more often under extremely dusty, dirty conditions), remove the blower' housing and other cooling shroud& Clean the cooling fins and external

surfaces as necessary. Make sure the cooling shrouds are reinstaile&

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_

MUFFLER

Inspect and replace corroded muffler and spark attester (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 100 hours of operation, whichever occurs first. Spark plug type and gap setting are shown in "PRODUCT SPECIFICATIONS" on page 3 of this manual

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Sears 917.256543 manual Customer, Clean, AIR INTAKF.JCOOLiNG, Areas, Spark Plugs