Sears 917.257720 owner manual Engine, KEY Part NO. no

Page 41

REPAIR PARTS

18 HP 44" TRACTOR = MODEL NUMBER 917.257720

ENGINE

KEY PART NO. NO.

114! 948

2 144110

313240300

413280328

51320030O

6138129

8121361X

9138559

10105432X

11137140

12136907

13138486

14138487

15127334X

16109227X

17106082X

18123549X

1913290300

2O 133439

21 17720410

			KEY	PART
DESCRiPTiON			NO.	NO.	DESCRiPTiON
Engine	Kohler 18 Mag Vt		22	138672	Control		Choke
Muffler	Asm	Kohler VGT (Inc. Key	23	19132616	Washer		13/32 X 1 - 5/8 X 16 Ga
No. 34)			24	11050600	Washer		Ext Tooth		3/8
Elbow	Street	3/8 NPT	25	73610600	Nut Fin Hex 3/8 - 24 UNF
Nipple	Pipe 3/8NPT X 3 - 1/2		26	3645J	Bushing
Elbow STD 90 Degree 3/8 - 18 NPT			27	139277	Stem Tank Fuel
Clamp	Tube	Double Engine	28	7834R	Fuel Line
Pulley	V-Idler		29		Spark Arrester			Kit
Stop Keeper Asm VGT			30	105037X	Strip Foam
Bushing			32	17490508	Screw	Thdrol		5/16 - 18 X 1/2
Clutch	Electric		34	17720408	Screw Thd Cut 1.4 - 20 x 1/2
Pulley Engine VGT Elect Clutch			35	10040500	Washer		Lock 5/16
Baffle Air LH Koh VGT			36	74570512	Screw		Hex 5/16 - 16 UNC X 3/4
Baffle Air RH Koh VGT			37	123487X	Clamp		Hose
Tank Fuel W/Sym Vented			38	11050600	Lockwasher Ext Tooth 3/8
Pad Spacer			39	17490624	Screw	Thdrol		3/8 - 16 X 1 - 1/2 TT
Pad Spacer			40	17490652	Screw	Thdrol		3/8 - 16 X 3 - 1/4
Cap Asm Fuel W/Sym, Vented			41	126197X	Washer		1-1/20D		X 15/32 ID X .250
Plug Oil Drain (Order From Engine			42	10040700	Washer		Lock 7/16
Manufacturer)			43	71170768	Bolt Hex 7/16			- 20 X 4 - 1/4 Ga 5
Control	Throttle
Screw	Hex Thd Cut 1/4 - 20 X 5/8		NOTE: All component dimensions given in U.S. inches
			NOTE: All component dimensions given in U.S. inches
				1 inch = 25.4	mm

.J

41

Image 41

Contents Number 917.257720 Ownersmanual IL Slope Operation Safety is InvolvedProduct Specifications Maintenance AgreementLmMREDTWO Year Warranty on Electric Start Riding Equipment Limited 90 DAY Warranty on BatteryRepair Maintenance SchedulePerformance Engine MaintenanceEssories and Attac Ents Pack Contents ,OFTo Remove Tractor from Carton Tools Required for AssemblyBefore Rolling Tractor OFF Skid Unpack CartonAssem LY HOW to SET UP Your TractorCheck Tire Pressure Check Brake SystemCheck Deck Levelness Install Mower and Drive BeltCheck for Proper POSiTiON of ALL BeltsInstall Battery See Figs, 5 AssemblyKnow Your Tractor ErationTo Move Forward and Backward HOW to USE Your TractorOperati To Operate on Hills OP RATBefore Starting the Engine ADD Gasoune Mowing TipsTo Start Engine See Fig StartingMaintenance Schedule Lubrication ChartFill in Dates AS YOU Complete Regular Service Service Dates General RecommendationsCustome Respo Lities To Clean Battery and Terminals Battery See FigCusto ENGmNEPonsi Ilities CleaningCustome To iNSTALL Mower Service Adju NTSTractor To Remove Mower See FigTo Replace Mower DRIVE. Belt Service and AOJ StmentsTo Replace Mower Blade Drive Belt To Adjust Attachment Clutch See FigSE CE To Adjust Steering Wheel Alignment Service and AdjustmentsFront Wheel TOE-IN Adjustment To Replace Motion DRmVE Belt See FigCovE \ SE CE AN a UstmentsTo Remove Hood and Grill Assembly CE and AdjustmentsTo Adjust Attachment LiFT Spiring See Fig To Adjust Throttle Control Cable See Service aTo Adjust Carburetor See Fig EngineOther StorageSE ICE Otes Correction ProblemCause Cause Correction ProblemTrou Lesh OTI Points 18 HP 44 Tractor = Model Number SchematicWH,TEhi @ ClipsPart 18 HP 44 Tractor - Model NumberDescription KEYElectrical 18 HP 44 Tractor Model NumberPart 18 HP 44 Tractor --MODEL Number 917,257720Chassis and Enclosures Descraption Chassis and EnclosuresKEY Part Ground Drive DESCRiPTiON Steering Assembly NO. no KEY PartModel Number ENGIN,EKEY Part NO. no 18 HP 44 Tractor Model Number 917,257720 Seat AssemblyTractor .. Model Number 18 HP20 1918 NO. no DescriptionMower Deck KEY Part NO. no HP 44 Tractor .- Model Number 9! 7,2577208887 TransaxleTransaxle Breather and Vent Kohler Engine Model Number MV18S, Type NumberBaffles and Shroud Kohler Engine = Model Number MV18S 18 HP 44 TractorType Number KEY Part Description18 HP 44 Tractor Model Number 917,257720 Kohler Engine = Model Number MV18S, Type Number 18 HP 44 Tractor = Model Number 9Crankcase Carburetor KEY Part NO. no18 HP 44 Tractor o Model Number Cylinder Head 18HP 44 Tractor .. Model NumberKohler Engine o Model Number MV18S, Type Number 18 HP 44 TRACTOR- Model ,NUMBER 917o257720Governor Fuel Pump KEY Partdescription NO. no Kohler Engine Model Number MVlSS, Type NumberFlywheel KEY Partdescription NO. no Camshaft and Valves Kohler Engine Model Number MV18S Type Number LOW OIL Pressure SwitchPiston & ROD Camshaft & ValvesRViCE OTE Not Across HiLL Only Ride UP and Down HillRepair When Ordering Repair PARTS, Always GivePRODUCT- Tractor ,MODEL Number Part Description