Sears 917.25591 manual KEY Part NO, no, Description KEY Part

Page 41

REPAIR PARTS

GT 18 TWIN GARDEN TRACTOR-MODEL NUMBER 917.255910

ENGINE_-MODELHUMBER 422437, TYPE NUMBER 0721-01

CYLINDER, CRANKSHAFT AND ENGINE BASE GROUP

KEY PART

NO, NO.

I394900

2 391086

3 212461

4 212462

5 270984

8 270983

7 393243

8 393153

9 27803

1093394

11 270882

tl 271145

11 271148

1293113

1393111

t4 91084

15394430

16 394535

17 291675

1893847

19394955

I9 394956

19394957

19394958

20 394959

20 394960

20394961

20 394962

21 394023

22260924

23299691

23391286

24394306

25223053

2692909

27390420

2865906

29 26828

30 221596

31 292260

32 93630

33 261368

34 212337

DESCRIPTION

 

 

 

 

 

 

 

KEY

PART

DESCRIPTION

 

 

 

 

 

 

 

 

 

 

 

NO

NO,

 

 

 

 

 

Cylinder Assembly

 

 

 

 

35

271316

Foam Seal. Governor Shaft

Seal- Oil

 

 

 

 

 

 

 

 

36

296004

Pipe. Fuel {Inc. Key No. 52)

Head-

Cylinder No. t

 

 

 

 

37

394348

Gear. Governor

Head-

Cylinder No. 2

 

 

 

 

38

89838

Wrench - Spark Plug

*Gasket

..Cylinder

 

Head No

1

 

 

39

220883

Washer ..Gov. Crank (inside)

*Gasket

- Cylinder

 

Head No, 2

 

 

40

394539

Plug.

Spark

(Resistor) (2 ,.3/8 high- 60

Breather Assembly NoD 1

 

 

 

 

 

mm)

 

 

 

 

 

 

 

 

Nut-

Hex 8-

32

Breather Auembly

No, 2

 

 

 

41

90576

 

 

 

Terminal

 

*Gasket

.. Valve Cover

 

 

 

 

42

231174

 

Screw., Scm

 

 

 

 

 

 

 

43

280180

Grommet _ insulator

°Gasket

,. CrankcaseCover t/64"

Thick

44

394014

Cap and Dipstick ,_Oil Filler

"Gasket _ Crankcar_ Cover °008"

Thick

45

68838

Sealo Filler Tube

Tube°

Oil Filler

°Gasket - CrankcaseCover ,089"

Thick

46

392782

Screw ,,Hex Hd_

Screw ,,Cylinder

Head (2.,

t5/16"

long)

47

93783

Trough - Dipper

Screw- Cylinder

Head (1

!5/16"

long)

48

223055

Rug,, Oil

Drain

 

 

 

 

 

 

49

394391

Base. Engine

 

 

 

 

 

 

"Gasket,

Engine Base

Crankshaft

 

 

 

 

 

 

 

50

270981

Cover Assembly- Crankcase

 

 

51

222700

Baffle.

Air

 

 

 

Clamp°

Fuel Pipe

Seal. Oi!

 

 

 

 

 

 

 

 

52

93053

Screw-

 

CrankcaseCover Mtg, Sam

 

53

93851

Retainer. E-Ring

 

 

Crank Governor

Piston Assembly

Standard

(Inc,

 

54

394396

 

Elbow-

Spark Plug

Key No_s, 20 & 22)

 

 

 

 

55

66538

 

 

 

 

Plug.

Hex Socket

Piston A_embly

...010"

O.So

 

 

56

93448

 

 

Key-

Flywheel

Piston Assembly - ,020"

O,,S,

 

 

57

222698

Piston Assembly - °030"

O,So

 

 

58

220863

Washer

 

 

 

 

Washer - Thrust

Ring Set-

Piston,

Standard

 

 

59

222773

 

 

Gear° Timin_

Ring Set., Piston-

,010"

O.S,

 

 

60

261363

Ring Set,

Piston-

,020"

O,S.

 

 

61

393606

Seat Assay,and Retainer

 

 

Bearing,, Ball (P.T.O. side)

Ring Set-

Piston-

°030" O,&

 

 

62

393741

 

 

 

 

 

 

 

 

 

 

 

63

231218

+Guide. Exhaust Valve

Dipstick

and Tube Assembly (inc.

 

54

210940

+Seat-

Exhaust Valve (Standard)

Key No's 44, 45 & 46)

 

 

 

 

65

261463

+Seat _.Intake VaNe (Standard)

Lock-

Piston

Pin

 

 

 

 

 

 

66

261559

 

 

 

 

 

 

Lower Bushing- Gov_

Pin Assembly

..Piston - Standard

 

 

67

391115

Wire ,,Ground

(Inc. Key NOD22)

 

 

 

 

 

68

230318

Connector _ Fuel Pipe

Pin Assembly. Piston .. ,005"O.S

 

69

92791

Washer. Lock Shakeproof

Rod Assembly - Connecting

 

 

 

70

93722

Terminai ,,Spade

Dipper-

Connecting Rod

 

 

 

71

261528

Valve,, Intake

Screw.

 

Connecting Rod

 

 

 

 

72

92268

Washer

 

 

 

 

 

 

 

+ Bearing - Cyiinder

Valve

 

Exhaust

 

 

 

 

 

 

73

261623

Spring,

Intake Valve

 

 

 

 

74

261560

Upper Bushing - Governor

Spring ,.Exhaust

Valve

 

 

 

 

 

*inc,, in Gasket

Set - 394501

Retainer • Intake Valve

 

 

 

 

 

Rotocoil ,,Exhaust

 

 

 

 

 

+Special Too{s

required to

install

Retainer ..Exhaust Valve Rotocoil

 

 

 

 

 

 

 

 

Tappet ,,Valve

Gear. Cam

Image 41
Contents 8EA/RS Large variety Full SO-DAY Warranty on BatteryTRANSMISSION-six speedsforward ScuffingRules for Safe Operation Wear EYE and Face SHtELD Install BatteryWash Hands or Clothing Immedi Ately tF Accidentally in ContactIntjext Wing Wing NUT Lockwasher Close HoodCLUTCH/BRAKE Temperature Range Expected Before Next OILPosition Clutch Position Brake ShaftOUT the Deflector Shield 1N Do not Operate the Mower with Remove KEY When Leaving TracTOR to Prevent Unauthorized Avoid Stopping or Shifting on HillsEach Pulley Mower and Drive Belt StallationHandle Rear Suspensionmower Bracketsbracket Release PIN WasherRetaining Washer Clip Lift Link Fiairpin Clip Adjust the mower while tractor is parked on level ground orDriveway, Make sure tire pressures are 14 PSI in front PSI in rearMower Engagement To Raise Frontof MowerTo Lower Front of Mower RoH,RUNNER Tire Chains Cannot be Used with the Mower Housing ATTACHED=Deflector Never Remove DEFLECTOR. Keep Hands and Feet from Under MOWEN Securely Always USE Grade 5 Heat Treated Blade ReplacementLutely Sure the Blades and ALl Power TA/KE= Cleanng MowerClutch Prevent Accidental Starting beFrom Tractor Outer Blades Drive BeltStorage Attachment Loft AdjustmentJAM NUT Dischargingcharging AmperesDipstick Change Engine OILClean Front Grill Moved AS Dirt Dust will Damage the Engine Clean AIR ScreenEvery 15 Hours if Operating in Very Dusty Conditions Lubricate Steering and Front WheelsClean Engine Cooling Fins 8o Clean Battery and TerminalsLubricating Grease Amdex NO, t, Sears Part no R Refer to Engine OIL SPECS. Under Initial PreparationReplace Spark Plugs Replace AIR Cleaner Paper Cartridge Refer toLubricate Ball Joints Replace IN*LINE Fuel FilterCheck Transaxle OIL Level Brake AdjustmentIf Tractor Requires More than TUGRefer to Starting the Engine TAKE. UP IdlerBelt Removal Finish AS YOU Complete10, Hood Removal DatesGeneral Cleaning Engine Misses or Lacks PowerPossible Cause Will not Start Hard to StartRED Diode Assembly Engine Coil STARTB-S Ignition SwitchOrange Light Switch Black29 719J KEY Part Description NO. no Descr IptionStandard Washer Lock 3/8Repair Parts KEY @11 82 U L M N O P Q RGarden TRACTOR-MODEL 22t85 Repar PartsC D E GT 18 Twin Garden TRACTOR-MODEL Number 917,255910Part Mower L ! FT Pump, Fuet LiftBracket, Lift Standard HARDWARE-PURCHASERepair PT8 C D E F G REPAmR Parts 4216R Differential Gear 8119M GT 18 Twin Garden TRACTOR--MODEL Number TransaxleReduction Gear Shaft 7398H Extra Heavy 101444XRepahr Parts Description KEY Part KEY Part NO, noRpair Parts KEY Part NO. no Part Description KEY 223222848 Cover Air Guide 222847 392681 Housing- Blower222849 Cover Air Guide 222846 93163 Screw- Sere 93777Servics Notes SKY LaNE or Tree Sight and Hold Thss Level withGT 18 Twin Speed Garden Tractor