Sears 917.257720 owner manual Service and AOJ Stments, To Replace Mower DRIVE. Belt

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SERVICE AND AOJ STMENTS

FRONT-TO-BACK ADJUSTMENT (See Figs. 24 and 25) -

iMPORTANT: DECK MUST BE LEVEL SIDE-TO-SIDE. IF THE FOLLOWING FRONT-TO-BACK ADJUSTMENT IS

NECESSARY, BE SURE TO ADJUST BOTH FRONT LINKS EQUALLY SO MOWER WILL STAY LEVEL SIDE-TO°SIDE. To obtain the best cutting results, the mower housing should be adjusted so the front is approximately 1/8" to 1/2" lower than the rear when the mower is in its highest position.

Check adjustment on right side of tractor. Measure dis- tance ',F"directly in front of and behind the mandrel at bottom edge of mower housing as shown.

,Before making any necessary adjustments, checkthat both front links are equal in length:

•If links are not equal in length, adjust one link to same length as other link.

To lower front of mower housing, loosen nut"G" on both

front links an equal number of turns.

®When distance "F" is 1/8" to 1/2" lower at front than

rear, tighten nut"H" against trunnion on both front links.

. To raise front of mower housing, loosen nut "H" from trunnion on both front links. Tighten nut "G" on both

front links an equal number of turns.

When distance "F" is 1/8" to 1/2" lower at front than

rear, tighten nut "H" against trunnion on both front links.

NOTE: Each full turn of nut "G" will change dim. "F" by approximately 3/8"o

•Recheck side-to-side adjustment.

TO REPLACE MOWER DRIVE. BELT

MOWER DRIVE BELT REMOVAL (See Fig. 26) o

•Park tractor on a level surface. Engage parking brake.

•Remove four screws from L.H. mandrel cover and remove cover.

Rol! belt over the top of L.H. mandrel pulley.

o Remove belt from electric dutch pulley.

•Remove belt from idler pulleys.

oRemove any dirt or grass clippings which may have accumulated around mandrels and entire upper deck surface.

oCheck primary idler arm and two idlers to see that they rotate freely.

oBe sure spring is securely hooked to primary idler arm and bolt in mower housing.

MOWER DRIVE BELT INSTALLATION (See Fig. 26) -

•Install belt in both idlers. Make sure belt is in both belt keepers at the idlers as shown.

o Install new belt onto electric clutch pulley.

-Roll belt into upper groove of L.H. mandrel pulley.

Carefully check belt routing making sure belt is in the grooves correctly and inside belt keepers.

o Reassemble L.H. mandrel cover.

SCREWS

SPRING

"F" _

_ "F"

G ROU N_DL_NE

/Z7Z?77-77777777_/ 7_;:_:7:( iTZ777-_T77*777777-T/7

FIG. 24

BOTH FRONT LINKS SHOULD BE EQUAL IN LENGTH

i:iii!_

BOLT IN

HOUSING

FIG, 26

NUT "H"

FRONT LINKS

FiG. 25

2O

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Contents Number 917.257720 Ownersmanual Safety is Involved IL Slope OperationMaintenance Agreement Product SpecificationsLmMREDTWO Year Warranty on Electric Start Riding Equipment Limited 90 DAY Warranty on BatteryMaintenance Schedule RepairPerformance Engine MaintenanceEssories and Attac Ents Contents ,OF PackTools Required for Assembly To Remove Tractor from CartonBefore Rolling Tractor OFF Skid Unpack CartonHOW to SET UP Your Tractor Assem LYCheck Tire Pressure Check Brake SystemInstall Mower and Drive Belt Check Deck LevelnessCheck for Proper POSiTiON of ALL BeltsAssembly Install Battery See Figs, 5Eration Know Your TractorTo Move Forward and Backward HOW to USE Your TractorOperati To Operate on Hills OP RATBefore Starting the Engine Mowing Tips ADD GasouneTo Start Engine See Fig StartingLubrication Chart Maintenance ScheduleFill in Dates AS YOU Complete Regular Service Service Dates General RecommendationsCustome Respo Lities Battery See Fig To Clean Battery and TerminalsCusto ENGmNEPonsi Ilities CleaningCustome Service Adju NTS To iNSTALL MowerTractor To Remove Mower See FigService and AOJ Stments To Replace Mower DRIVE. BeltTo Replace Mower Blade Drive Belt To Adjust Attachment Clutch See FigSE CE Service and Adjustments To Adjust Steering Wheel AlignmentFront Wheel TOE-IN Adjustment To Replace Motion DRmVE Belt See FigSE CE AN a Ustments CovE \To Remove Hood and Grill Assembly CE and AdjustmentsTo Adjust Attachment LiFT Spiring See Fig Service a To Adjust Throttle Control Cable SeeTo Adjust Carburetor See Fig EngineStorage OtherSE ICE Otes Correction ProblemCause Cause Correction ProblemTrou Lesh OTI Points Schematic 18 HP 44 Tractor = Model NumberWH,TEhi @ Clips18 HP 44 Tractor - Model Number PartDescription KEY18 HP 44 Tractor Model Number Electrical18 HP 44 Tractor --MODEL Number 917,257720 PartChassis and Enclosures Descraption Chassis and EnclosuresKEY Part Ground Drive DESCRiPTiON Steering Assembly KEY Part NO. noENGIN,E Model NumberKEY Part NO. no Seat Assembly 18 HP 44 Tractor Model Number 917,25772018 HP Tractor .. Model Number20 1918 NO. no DescriptionMower Deck HP 44 Tractor .- Model Number 9! 7,257720 KEY Part NO. noTransaxle 8887Transaxle Breather and Vent Kohler Engine Model Number MV18S, Type NumberBaffles and Shroud 18 HP 44 Tractor Kohler Engine = Model Number MV18SType Number KEY Part Description18 HP 44 Tractor Model Number 917,257720 18 HP 44 Tractor = Model Number 9 Kohler Engine = Model Number MV18S, Type NumberCrankcase Carburetor KEY Part NO. no18 HP 44 Tractor o Model Number 18HP 44 Tractor .. Model Number Cylinder Head18 HP 44 TRACTOR- Model ,NUMBER 917o257720 Kohler Engine o Model Number MV18S, Type NumberGovernor Fuel Pump KEY Partdescription NO. no Kohler Engine Model Number MVlSS, Type NumberFlywheel KEY Partdescription NO. no Camshaft and Valves LOW OIL Pressure Switch Kohler Engine Model Number MV18S Type NumberPiston & ROD Camshaft & ValvesRViCE OTE Only Ride UP and Down Hill Not Across HiLLWhen Ordering Repair PARTS, Always Give RepairPRODUCT- Tractor ,MODEL Number Part Description
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