Sears 917.257632 To Adjust Throttle Control Cable, To Adjust Carburetor See Fig, Final Setting

Page 23

$ERVnCE A ADJUSTMENTS

ENGINE

TO ADJUST THROTTLE CONTROL CABLE

(See Fig. 29)

The throttle control has been preset at the factory and adjustment should not be necessary.. Checkadjustment as described below before loosening cable° If adjustment is necessary, proceed as follows:

oWith engine not running, move throttle control lever from slow (,_) to choke (X) position. Slowly move lever from choke ( _,.) to fast (,_) position°

-Check that holes"A" in governor control lever and hole in governor plate line-upo If holes "A" are not atigned, loosen clamp screw and move throttle cable until holes are aligned, Tighten clamp screw securely..

GOVERNOR

GOVERNOR

CONTROL LEVER

CONTROL PLATE

HOLES "A"

CLAMP

THROTTLE

 

SCREW

CABLE

FIG. 29

TO ADJUST CARBURETOR (See Fig, 30)

The carburetor has been preset at the factory and adjust- ment should not be necessary. However, minor adjust- ment may be requiredto compensate for differences in fuel,

temperature, altitude or load. If the carburetor does need adjustment, proceed as follows:

In general, turning idle mixture valve in (clockwise) de- creases the supply of fuel to the engine givinga leaner fuel/ air mixture. Turning the idle mixture valve out (counter- clockwise) increases the supply offuel tothe engine giving a richer fuel/air mixture.

IMPORTANT; DAMAGE TO THE NEEDLE VALVE AND THE SEAT IN CARBURETOR MAY RESULT IF SCREW IS TURNED IN TOO TIGHT..

PRELIMINARY SETTING -

,Air cleaner assembly must be assembled to the carbu- retor when making carburetor adjustments°

=Be sure the throttle control cable is adjusted properly (see above)..

°With engine off turn idle mixture valve in (clockwise) closing it finger tight and then turn out (counterclock- wise) t full turn,_

FINAL SETTING -

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

•Move throttle control lever to slow (,_!) position. With finger, rotate and hold throttle Iever against idle speed screw° Turn idle speed screw to attain 1750 RPM

,While still holding throttle lever against idle speed screw, turn idle mixture valve in (clockwise) until en-

gine beg!ns to die and then turn out (counterclockwise) until engine runs rough. Turn valve to a point midway between those two positions° Release throttle lever..

ACCELERATION TEST -

°Move throttle control leverfrom slow (,_!) to fast (,_) position° If engine hesitates or dies, turn idle mixture valve out (counterclockwise) 1/8 turn. Repeat test and continue to adjust, if necessary, until engine acceler- ates 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° OVERSPEEDING THE ENGINE ABOVE

THE FACTORY HIGH SPEED SETTING CAN BE DANGEROUS. IF YOU THINK THE ENGINE-GOVERNED

HIGH SPEED NEEDS ADJUSTING, CONTACT YOUR

NEAREST AUTHORIZED SERVICE CENTER/

DEPARTMENT, WHICH HAS PROPER EQUIPMENT AND

EXPERIENCE TO MAKE ANY NECESSARY ADJUSTMENTS.

THROTTLE

IDLE SPEED

LEVER

SCREW

IDLE MIXTURE

VALVE

FIG. 30

23

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Contents IIIIIIIIIIIIIIIIIIIIIIrrmlllllllllll Children Safe Operation Practices for Ride-On MowersModel Maintenance AgreementTable of Contents Performance Engin E MaintenanceHardware Pack Parts bag contents not shown full sizeUnpack Carton AssemblyTools Required for Assembly To Removetractor from CartonCheck for Proper Position of ALL Belts HOW to SET UP ,/OURTRACTORCheck Tire Pressure Check Deck LevelnessInstall Battery See Figs ChecklistOperation Stopping See Fig HOW to USE Your TractorTo Adjust Mower Cutting Height See Fig To USE Throttle Control See FigTo Transport OperationBefore Starting the Engine To Operate on HillsTo Start Engine See Fig ADD GasolineCheckTransaxle Cooling Lubrication ChartCustomer Responsibilities General RecommendationsTires Battery See FigBlade Removal See Fig To Sharpen Blade See FigTransaxle Cooling Customer RSibilities EngineEngine Cooling Fins See Fig Clean AIR Screen See FigMuffler Spark PlugsMowerwill be easier to remove from the right side oftractor Service and AdjustmentsTo Install Mower See Fig To Remove Mower See FigBothfront Links Must be Equal in Length To Level Mower Housing STATONARY!1 Transaxle To Adjust Brake See Fig To Replace Mower Blade Drive Belt To Replace Motion Drive Belt See FigTo Remove Wheel for Repairs To Adjust Steering Wheel AlignmentTo Start Engine with a Weak Battery See Fig Front Wheel TOE-IN/CAMBERInterlocks and Relays To Remove Hood and Grill Assembly See FigSE and a To Replace Headlight BulbFinal Setting To Adjust Throttle Control CableTo Adjust Carburetor See Fig Preliminary SettingFuel System BatteryStorage TractorCorrection ProblemcauseCorrection ProblemPoints Will Change with Engine Wiring Insulated ClipsSolenoid With a Special AlternatorElectrical Tube Pastic Battery 12 Volt 25 AMPKEY Part Description Bolt Hex Hd 1/4-20unc X 3/4Chassis and Enclosures 105037X Part DescriptionDrive Descripon KEY Part KEY PartNO. no Steering Assembly 13 HP 42 Tractor --MODEL Number 145006 Seat Assembly127437 Wheels & Tires Decals24 fJ Optional EquipmentEngine Repair Parts 161718 O KEY Part NO. NO. Description 13 HP 42 TRACTOR- Model NumberMower Retainer 2732 3635 13 HP 42 Tractor - ModelDana Transaxle Model Number Jaw, Brake KEY Part NO. no Description337 761306 562 308 305Briggs & Stratton Engine Model Number 28M707, Type Number 108 618 634455 222 240356 877 305 668 1044Gasket SET Carburetor Gasket SET 311842 Carburetor Overhaul KITBriggs & Stratton Engine Model Number 28M707, Type Number KEY Part NO. NO+ Description NO. no Page SERVmCE Notes Page Sight and Hold this Level with SKY Line or Tree Only Ride UP and Down Hill Not Across HillPart Number Part Description If YOU Need Repair Service or PartsFor Repair SERVICE, Call this Toll Free Number
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