Sears 917.258473 Service and Adjustm, To Adjust Throttle Control Cable See Fig, Final Setting

Page 26

SERVICE AND ADJUSTM

ENGINE

TO ADJUST THROTTLE CONTROL CABLE (See Fig. 31)

The throttle contro! has been preset at the factory and adjustment should not be necessary. Check adjustment as described below before loosening cable° tf adjustment is necessary, proceed as follows:

•With engine not running, move throttle control lever from slow to choke position, Slowly move lever from choke to fast position°

•Check that holes"A" in governor control lever and hole in governor'plate line-up. If holes "A"are not aligned, loosen clamp screw and movethrottle cable until holes are aligne& Tighten clamp screw securely°

GOVERNOR

GOVERNOR

CONTROL LEVER

CONTROL PLATE

 

HOLES *'A"

CLAMP

THROTTLE

 

SCREW

CABLE

FIG. 31

TO ADJUST CARBURETOR (See Fig. 32)

FINAL SETTING -

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

*Move throttle control leverto stow position. With finger, rotate and ho[d throttle lever against idlespeed screwy Turn idle speed screw to attain 1750 RPM

°While still holding throttle lever'against idle speed screw, turn idle mixture vaive in (clockwise) until en- gine begins 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 lever from 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 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. OVERSPEEDING THE ENGINE ABOVE

THE FACTORY HIGH SPEED SETTtNG CAN BE DANGEROUS., IFYOU THINKTHE 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

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 infuel, 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 offuel tothe engine givinga leaner rue!/ air mixture. Turning the idle mixture valve out (counter- clockwise)increases the supply of fuel to the 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 propedy (see above),

oWith engine off turn idle mixture valve in (clockwise) closing it finger tight and then turn out (counterclock_ wise) 1 full tum.

IDLE MIXTURE

VALVE

FIG. 32

o6

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Contents Assembly I1o Slope Operation Safe Operation Practices for Ride-On MowersLU. Children Limited TWO Year Warranty on Craftsman Riding Equipment Maintenance AgreementProduct Specifications Customer ResponsibilitiesTable of Contents Performance Accessobi and AttachmentsEngine Maintenance Parts bag contents not shown full size Hardware PackBefore Rolling Tractor Offskid Tools Required for AssemblyTo Remove Tractor from Carton Unpack CartonInstall Seat See Fig HOW to SET UP Your TractorConnect Battery See Figs GrundingTo Convert to Bagging or Discharging Install Mulcher PlateSee Figs OperationCheck Deck Levelness AssemblyCheck Tire Pressure Check for Proper Position of ALL BeltsOperation LockKnow Your Tractor HOW to USE Your Tractor To Operate On Hills Before Starting the EngineTo Operate Mower See Fig To TransportTo Start Engine See Fig Mowing TipsADD Gasoline Operation Mulching Mowing TipsGeneral Recommendations Lubrication ChartCheck BatteryLevel/Recharge Before Each USETractor BatteryBilities TiresAIR Filter See Fig EngineLubrication Remove knobs and coverSpark Plugs NsibilitiesMuffler To Remove Mower See Fig Service and AdjustmentsTo Install Mower See Fig Both Front Links Must be Equal in Length AdjustmentsTo Level Mower Housing Install mower in reverse order of removal instructions CE and AdjustmentsTo Adjust Brake See Fig To Replace Mower Blade Drive Belt See FigTo Start Engine with a Weak Battery AdjustmTo Adjust Steering Wheel Alignment To Remove Wheel for RepairsTo Replace Headlight Bulb To Remove Hood and Grill Assembly See FigTo Replace Fuse To Remove CABLES, Reverse OrderTo Adjust Carburetor See Fig Service and AdjustmTo Adjust Throttle Control Cable See Fig Final SettingImportant Never Cover Tractor Whfleengine Fuel SystemEngine OIL Cause Troubleshooting PointsProblem CorrectionTroubleshooting POnNTS Problem CausePage Ignition SchematicTractor - Model Number Your Tractor is Equipped with a Special BrownRepair Parts KEY Part Description Tractor --MODEL NumberElectrical Chassis and Enclosures KEY Part NO. NO. Description 74180512Drive 121 11874550412 KEY Part NO. no19151216 KEY PartSteering Assembly Repair Parts UncKEY Part Descripon Seat AssemblyTractor -- Model Number 144334 DecalsKEY Engine Optional EquipmentTractor --MODEL Number 161718 3219 Tractor -- Model Number Lift Arm Suspension MowerMower 132 105UNC 21 STD54143137 STD55t037 40 STD541437 Adj94 Spring, TorsionDana TRANSAXLE- Model Number Sprocket, 18T Dana Transaxle Model NumberKEY Part NO. no Description Spacer, 1.131 X I45 X A94868 Briggs & Stratton Engine Model Number 28N707, Type NumberValv E Overhaul KIT Carburetor Requires Special Tools To INSTALL. see RepairTractor - Model Number 917,258473 455 1006 8O3 601 209801 783Idle Speed Tractor -..MODEL Number 917,258473272614 005Puller, Flywheel 281361Page ViCE Notes SEI Notes MAX Only Ride UP and Down Hill Not Across HillGuideth Model Number Engine Model NO, 28N707, Type no For Repair SERVICE, Call this Toll Free NumberOwners Manual Part Number Part Description

917.258473 specifications

The Sears 917.258473 is a versatile lawn tractor that has earned a reputation for its reliability and performance in the field of gardening and landscaping. Designed to cater to a range of lawn care needs, this model combines innovative technology with user-friendly features, making it an excellent choice for both novice and experienced gardeners.

At the heart of the Sears 917.258473 is a powerful engine, typically offering a robust horsepower that ensures efficient mowing, trimming, and yard maintenance. This engine is designed for durability and ease of starting, often featuring an automatic choke system. The tractor's high-performance capabilities allow it to tackle larger lawns and uneven terrains with ease.

One of the standout features of the Sears 917.258473 is its cutting deck. With multiple cutting heights available, users can customize the length of their grass according to seasonal needs or personal preferences. The reinforced deck is not only sturdy but also designed for efficient grass collection and minimal clumping, ensuring a clean and polished lawn after each mow.

Maneuverability is another significant aspect of this lawn tractor. It is equipped with an ergonomic steering system that allows for easy navigation around obstacles such as trees and flower beds. The tight turning radius enhances its capability to operate in smaller yards without sacrificing performance.

Another notable characteristic is the inclusion of a hydrostatic transmission. This feature provides seamless speed adjustments without the need for manual shifting, making it simple to control the tractor's speed in various mowing conditions. Additionally, the Sears 917.258473 is often designed with a comfortable seat and user-friendly controls, allowing for prolonged periods of usage without fatigue.

Safety features are thoughtfully integrated into the design, including a seat switch that ensures the engine shuts off when the user leaves the seat. This enhances overall safety during operation, especially on slopes or uneven ground.

Overall, the Sears 917.258473 represents a great investment for homeowners seeking an efficient and reliable lawn care solution. With its potent engine, adjustable cutting deck, ease of maneuverability, and advanced technologies, it stands as a competitive option in the realm of lawn tractors, helping users achieve their desired lawn aesthetics with minimal effort.
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