Sears 917.2566 owner manual To Adjust THROnLE Control Cable See Fig, To Adjust Carburetor See Fig

Page 25

SERVICE AND ADJUSTMENTS

ENGINE

TO ADJUST THRO'n'LE CONTROL CABLE

(See Fig. 33)

The throttle control has been preset at the factory and

adjustment should not be necessary. Check adjustment as described below before loosening cable. If adjustment is

necessary, proceed as follows:

With engine not running, move throttle control lever from slow (.6_) to choke (1\0 position. Slowly move lever from choke (1\1)to fast (,_) position.

•Check to see if hole in throttle lever and hole in speed control bracket are aligned.

=If holes are not aligned, loosen cable clamp screw and align the holes by inserting a pencil or a 1/4" drill bit through both holes.

•Pull throttle cable up to remove slack and tighten cable clamp screw. Remove alignment pencil or drill bit.

ACCELERATION TEST -

•Move throttle control lever from slow (._b) to fast (,f_)

position. If engine hesitates or dies, turn idle fuel

adjusting needle eut (counterclockwise) 1/8 turn. Re- peat test and continue to adjust, if necessary, until engine accelerates smoothly.

High speed stop is factory adjusted. Do not adjust - damage may result.

IMPORTANT: NEVER TAMPER WiTH THE ENGINE

GOVERNOR, WHICH IS FACTORY SET FOR PROPER ENGINE SPEED. OVERSPEEDINGTHEENGINEABOVE

THE FACTORY HiGH SPEED SETTING CAN BE

DANGEROUS. IF YOU THINK THE ENGINE-GOVERNED

-IIGHSPEED NEEDS ADJUSTING, CONTACT YOUR

4EAREST AUTHORIZED SERVICE CENTER/ )EPARTMENT, WHICH HAS PROPER EQUIPMENT AND

--XPERIENCE TO MAKE ANY NECESSARY \DJUSTMENTS.

CABLE

CLAMP

SCREW

TO ADJUST CARBURETOR (See Fig. 34)

The carburetor has been preset at the factory and adjust- ment should not be necessary. However, minor adjust- ment may be required tocompensate for differences in fuel, temperature, altitude or load. If the carburetor does need adjustment, proceed as follows:

In general, turning the adjusting needles in (clockwise) decreases the supply of fuel to the engine giving a leaner fuel/air mixture. Turning the adjusting needles out (counter-

clockwise) increases the supply of fuel to the engine giving a richer fuel/air mixture.

IMPORTANT: DAMAGE TO THE NEEDLES AND THE SEATS IN CARBURETOR MAY RESULT IF NEEDLE IS TURNED IN TOO TIGHT.

NOTE: The carburetor on this engine is low emission. It is equipped with an idle fuel adjusting needle with a limiter cap, which allows some adjustment within the limits allowed by the cap. Do not attempt to remove the limiter cap. The

limiter cap cannot be removed without breaking the adjusting needle.

•Be sure you have a dean air filter and the throttle control cable is adjusted properly (see above).

•Start engine and allow to warm for five minutes. Make adjustments with engine running and shift/motion control lever in neutral (N) position.

•Idle speed settina - With throttle control lever in slow (,_) position, engine should idle at 1750 RPM. If

engine idles too slow or fast, turn idle speed adjusting screw in or out until correct idle is attained.

-Idle fuel needle settina - With throttle control lever in slow (,_b) position, turn idle fuel adjustment needle in (clockwise) until engine begins to die and then turn out (counterclockwise) until engine runs rough. Turn needle to a point midway between those two positions.

.... _ Recheck idle speed. Readjustif necessary.

SPEED_

BRACKET

THROTTLE

LEVER

FIG. 33

IDLE SPEED

ADJUSTING

sc.Ew

,O,EPUE,/ --4

ADJUSTING

NEEDLE

FIG_ 34

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Contents Model Number 917.256600 Ownersmanual RoFTZHaNSafe Operation Practices for Ride=On Mowers Safety is InvolvedI11. Children Product Specifications Maintenance AgreementLimited TWO Year Warranty on Craftsman Riding Equipment Customer ResponsibilitiesIndex Engine Maintenance AccessoattachmentsPerformance Contents of Hardware Pack Tools Required for Assembly AssemblyTo Remove Tractor from Carton Before Rolling Tractor OFF SkidConnect Batiery See Fig Install Seat See FigCheck Tire Pressure Check Deck Levelness Install Mower and Drive Belt SeeCheck for Proper Position of ALL Belts Discharging Install Mulcher Plate See Figs aOperation Know Your Tractor Attachment Clutch Switch Used to engageOperation HOW to USE Your TractorTo Move Forward and Backward Before Starting the Engine To Adjust Gauge Wheels See FigShoulderbolt To Operate Mower See FigMowing Tips TRASH. Clean After Each USETo Start Engine See Fig Mulching Mowing TipsCustomer Responsibilities Lubrication ChartGeneral Recommendations Each USETractor BatteryBlade Care To Sharpen Blade See FigEngine Clean AIR Screen See FigTransaxle Cooling BeltsEngine OIL Filter See Fig Clean AIR INTAKE/COOLING AreasMuffler Spark PlugsAdjustments ServiceTo Level Mower Housing Recheck measurements After adjustingTo Replace Mower Drive Belt Service and AdjustmentsEqually SO Mower will Stay Level SIDE-TO- Side To Adjust Brake See Fig To Adjust Attachment Clutch See Electric clutch should provide years of service. To Replace Mower Blade Drive Belt See FigTransaxle Shifter Linkage and AD- Justment See Figs To Adjust Steering Wheel AlignmentTransaxleii ,--J1--= Frontwheel TOE-IN/CAMBERTo Remove Wheel for Repairs See Fig To Remove Hood and Grill AssemblyTo Start Engine with a Weak BAI-rERY See Fig Interlocks and RelaysTo Adjust Carburetor See Fig To Adjust THROnLE Control Cable See FigOther StorageEngine OIL Fuel SystemProblemcause Troubleshooting PointsCorrection Correcon Problem CauseIgnition Switch Tractor - Model Number SchematicWiring ClipsElectrical Tractor = Model NumberInterLock KEY Part DescriptionPTO Chassis and Enclosures Tractor = = Model NumberPlate Tractor - Model Number3637 DriveDrive Tractor = = Model NumberKEY Part NO, no 121520XSteering Assembly KEY Part Tractor -- Model NumberDESCRiPTiON WheelEngine Engine Tractor - Model NumberKEY Part NO. NO.DESCRIPTION Tractor Model Number Seat AssemblyWheels & Tires Decals41I 521 Mower LiftMower Lift Tractor --MODEL Number 917,256600Spring Retainer 1O5 104 106 101 Mower DeckPart KEY Description Tractor -= Model NumberDana Transaxle Model Number Tractor - Model Number 917,256600KEY Part Description NO. no Dana Transaxle = Model Number640 Kohler Engine Model Number CV15S, Type Number PS41525 Tractor -- Model NumberAIR Intake Blower H O Engine Controls JCrankshaft KEY Part Description 21 \ Cylinder HEAD, Valve and BreatherFuel System KEY Part NO. no Kohler Engine = Model Number CV15S, Type Number PS41525Tractor - Model Number 917,256600 KEY Part NO. no Service Notes Sight and Hold this Level with SKY Line or Tree Only Ride UP and Down Hill Not Across Hill SightingFor Repair SERVICE, Call this Toll Free Number If YOU Need Repair Service Or PartsModel Number Engine Model NO. CV15S PS41525 Part Number Part Description
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