stt-lp ipl manual

ILLUSTRATEDPARTS MANUAL

Part No. 06290Printed 12/2014

Printed in USA

© 2014Scag Power EquipmentDivision of Metalcraft of Mayville, Inc.

Model STT-25CH-LPTurf Tiger

IPL30

31

32

33

34

2933

36

37

40

39

38

41

35

1818

This manual conTains The illusTraTed parTs lisT for models:

sTT52V-25ch-lp with a serial number of h8700001 to h8799999sTT61V-25ch-lp with a serial number of h9000001 to h9099999

i

RTable of contents

Table of contents52V cuTTer decK ...........................................................................................................................................2

61V cuTTer decK ...........................................................................................................................................4

cuTTer decK conTrols .............................................................................................................................6

sheeT meTal componenTs ........................................................................................................................8

sTT roll-oVer proTecTion sYsTem .....................................................................................................10

sTT suspension seaT ................................................................................................................................12

noTes ..............................................................................................................................................................13

decK driVe componenTs .........................................................................................................................14

enGine and aTTachinG parTs - Kohler lp .........................................................................................16

BraKe and sTeerinG componenTs ......................................................................................................18

hYdraulic sYsTem - Kohler lp .............................................................................................................20

lp sYsTem - Kohler ...................................................................................................................................22

Bdp-16a hYdraulic pump assemBlY .....................................................................................................24

elecTrical sYsTem - Kohler lp ............................................................................................................26

replacemenT decals and informaTion plaTes .............................................................................28

elecTrical schemaTic - Kohler lp .....................................................................................................30

2

R section 8

52V cuTTer decK

44 61 63

69

12

65

64

52

58

5417

59

2414

56

28

56

33

3

a

a

B

B

4

14 29 20

532852

24

58

24

52

73

66

32

13

68

55

55

2958

2

3

23

3

11

50

13

46

60

49

67

24

35

48

9

16

19

15

27

26

12

82

51 23

23

36

37

44

39

43

42

38

45

41

34

62

22

40

37

18

10

1

5

7

6 8

STT 2008 CD

14

29

12

30

28

31

25

31

21

47 5112

23

7071

2213

72

74

28

29

13 2657

75

76

77

78

7980

81

83

84 85 86

3

Rsection 8

52V cuTTer decK

ref. no.

part no. descriptionref. no.

part no. description

123456789101112

131415161718192021222324252627282930313233343536373839404142434445

46185904003-4004019-04481625-0148163204003-2642247804017-2704043-0604021-0546184504001-1104001-1204021-2204020-0945124004001-4104003-1204001-10804063-0804063-0104043-0404001-17604019-0304001-17248100-1504030-0304040-1504041-0704021-0904001-6204001-5404001-2004001-136461663435894810244810224364443312432964810254329748103548114-0448677

Cutter Deck Velocity PlusBolt, Carriage 7/16-14 x 1-1/4”Nut, Hex Serr. Flng 3/8-16Wing nut, 3/8-16Anti-Scalp WheelBolt, Carriage 3/8-16 x 4”Anti-Scalp Wheel BracketBolt, Hex Serr. Flng 3/8-16 x 1”Flatwasher, 5/8” HardenedLocknut, 3/8-16 Center LockDischarge ChuteBolt, Hex Head 5/16-18 x 1-3/4” - FrontBolt, Hex Head 5/16-18 x 1-1/2” - RearNut, Hex Elastic Stop 5/16-18 Grd 8Nut, 5/8-11 UNCPush Arm ShaftBolt, HH 5/8-11 x 9-1/2”Bolt, Carriage 5/16-18 x 3/4”Bolt, HH 5/16-18 x 4-1/2”Key, 1/4 x 1/4 x 2”Key, 1/4 x 1/4 x 1-1/4”Flatwasher,3/8” (.39 x .938 x .105”) HDBolt, HH 5/16-18 x 1-3/4”Nut, Hex Serr. Flng 5/16-18Bolt, HH 1/4-20 x 1” Grd 8Bushing, .376” I.D. OiliteLockwasher, 5/16”Flatwasher, 5/16” (.375 x .875 x .083”)Flatwasher, 3/8” (.391 x .938 x .105”)Nut, Hex Elastic Stop 3/8-16Bolt, HH 3/8-16 x 3-1/4”Bolt, HH 3/8-16 x 3”Bolt, HH 3/8-16 x 1-1/2”Bolt, HH 3/8-16 x 1-1/2” Grd 8Spindle AssemblySpindle ShaftSeal, TopBearing AssemblySpindle HousingSpacer, OutsideSpacer, InsideSeal, BottomSpindle Bushing, BottomNut, Special 1-1/16-18Grease FittingRelief Fitting, Tapered Spindle

46474849505152535455565758596061626364656667686970727374757677787980818283848586

483378482295482878482486482281459444892648141461842482244832154619294827444247984224124615164359004020-164876304001-7948370448274704110-0304021-134242084350342484004003-2304040-1104021-1148316704003-1204040-0404021-044831764803804021-104376342479904001-154

Spring, Discharge ChuteWheel, Anti-ScalpCutter Blade, 18”Gearbox Assm, Deck DriveBelt, Cutter Deck DriveRoller ShaftTapered Hub, 1-1/8” BoreTapered Hub, 1” BoreIdler Arm, Cutter DeckBearings, BallPulley, IdlerLever Assembly, Deck Level (Incl. 77)Pulley, 5.75” O.D. (52”)Mounting Plate, RH GearboxBelt, CoverPusharm (includes items 44, 63 & 64)Spacer, Spindle BottomNut, Hex Head 5/8-18 UNFRod End, 5/8” Male RH ThrdBolt, Hex Head 5/8-11 x 4-1/2”Spring, Cutter DeckPulley, 6.95” O.D.U-Nut, 3/8-16Nut, Hex Elastic Stop 5/8-11Discharge Baffle 52VPivot, Idler - ShortBaffle, Custom Cut 52VBolt, Carriage 3/8-16 x 1”Flatwasher, 7/16” (.500 x 1.25 x .083”)Nut, Elastic Stop 7/16-14Bolt, Deck AdjustBolt, Carraige 5/16-18 x 3/4”Flatwasher, 5/16”Nut, Center Lock 5/16-18Wear PadWheel, Anti-ScalpNut, Elastic Stop 5/16-18Spacer, Gearbox MountMounting Plate, LH GearboxBolt, HH 5/16-18 x 4-3/4”

4

R section 8

61V cutter deck

44 61 63

69

12

65

64

52

58

5417

59

2414

56

28

56

33

3

A

A

B

B

4

14 29 20

532852

24

58

24

52

73

66

32

13

68

55

55

2958

2

3

23

3

11

50

13

46

60

49

67

24

35

48

916

19

15

27

2612

82

51 23

23

36

37

44

39

43

42

38

45

41

34

62

22

40

37

18

10

1

5

7

6 8

STT-EFI 2008 CD

14

29

12

30

28

31

25

31

21

47 5112

23

71

2213

72

74

28

29

13 2657

75

76

77

78

7980

81

83

84 85 70

5

Rsection 8

61V cutter deck

ref. no.



123456789101112131415161718192021222324252627282930313233343536373839404142434445

46186304003-4004019-04481625-0148163204003-2642247804017-2704043-0604021-0546184604001-1204021-2204020-0945124004001-4104003-1204001-10804063-0804063-0104043-0404001-17604019-0304001-17248100-1504030-0304040-1504041-0704021-0904001-6204001-5404001-2004001-136461663435894810244810224364443312432964810254329748103548114-0448677

Cutter Deck Velocity PlusBolt, Carriage 7/16-14 x 1-1/4”Nut, Hex Serr. Flng. 3/8-16Wing Nut, 3/8-16Anti-Scalp WheelBolt, Carriage 3/8-16 x 4”Anti-Scalp Wheel BracketBolt, Hex Serr. Flng. 3/8-16 x 1”Flatwasher, 5/8” HardenedLocknut, 3/8-16 Center LockDischarge ChuteBolt, Hex Hd. 5/16-18 x 1-1/2” - RearNut, Hex Elastic Stop 5/16-18 Grd. 8Nut, 5/8-11 UNCPusharm ShaftBolt, Hex Hd. 5/8-11 x 9-1/2”Bolt, Carriage 5/16-18 x 3/4”Bolt, Hex Hd. 5/16-18 x 4-1/2”Key, 1/4 x 1/4 x 2”Key, 1/4 x 1/4 x 1-1/4”Flatwasher,3/8 (.39 x .938 x .105”) HDBolt, Hex Hd. 5/16-18 x 1-3/4”Nut, Hex Serr. Flng. 5/16-18Bolt, Hex Hd. 1/4-20 x 1” Grd. 8Bushing, .376” I.D. OiliteLockwasher, 5/16”Flatwasher, 5/16” (.375 x .875 x .083”)Flatwasher, 3/8” (.391 x .938 x .105”)Nut, Hex Elastic Stop 3/8-16Bolt, Hex Hd. 3/8-16 x 3-1/4”Bolt, Hex Hd. 3/8-16 x 3”Bolt, Hex Hd. 3/8-16 x 1-1/2”Bolt, Hex Hd. 3/8-16 x 1-1/2” Grd. 8Spindle AssemblySpindle ShaftSeal, TopBearing AssemblySpindle HousingSpacer, OutsideSpacer, InsideSeal, BottomSpindle Bushing, BottomNut, Special 1-1/16-18Grease FittingRelief Fitting, Tapered Spindle

46474849505152535455565758596061626364656667686970717273747576777879808182838485

483378482295482879482486481558459444892648141461842482244832154619294827454247984243254615164359004020-164876304001-7948370448274604110-0304021-1304001-1544242094350342484104003-2304040-1104021-1148316704003-1204040-0404021-044831764803804021-1043763424799

Spring, Discharge ChuteWheel, Anti-ScalpCutter Blade, 21”Gearbox Assembly, Deck DriveBelt, Cutter Deck DriveRoller ShaftTapered Hub, 1-1/8” BoreTapered Hub, 1” BoreIdler Arm, Cutter DeckBearings, BallPulley, IdlerLever Assembly, Deck Level (Incl. 77)Pulley, 6.35” O.D. (61”)Mounting Plate, RH GearboxBelt, CoverPusharm (Incl. 44, 63 & 64)Spacer, Spindle BottomNut, Hex Hd. 5/8-18 UNFRod End, 5/8” Male RH ThreadBolt, Hex Hd. 5/8-11 x 4-1/2”Spring, Cutter DeckPulley, 6.75 O.D.U-Nut, 3/8-16Nut, Hex Elastic Stop 5/8-11Bolt, Hex Hd. 5/16-18 x 4-3/4”Discharge Baffle 61VPivot, Idler - ShortBaffle, Custom Cut 61VBolt, Carriage 3/8-16 x 1”Flatwasher, 7/16 (.500 x 1.25 x .083”)Nut, Elastic Stop 7/16-14Bolt, Deck AdjustBolt, Carriage 5/16-18 x 3/4”Flatwasher, 5/16”Nut, Center Lock 5/16-18Wear PadWheel, Anti-ScalpNut, Elastic Stop 5/16-18Spacer, Gearbox MountMounting Plate, LH Gearbox

6

R section 8

cuTTer decK conTrols

STT-28CAT 2008CDC

6 4

21

19

14

32

3536

34

3319

14

11

13

4

32

5

44

1

4241

38

14

3940

37

43

45

7

89

12

18

17

16

15

21

14

19

20

22

27

14

1928

1419

2526

23

14

19

CUTTER DECK

19

28

302425

29

24

31

2526

14

24

10

7

Rsection 8

cuTTer decK conTrols

ref. no.


123456789101112131415161718192021222324252627282930313233343536373839404142434445

48176404020-2848176604050-10459054348748242904009-0248100-1448142846210242485704014-0304019-0442350904003-0442238142346304001-2004019 -0348159848114-044352604020-0904040-0904061-07459044854004004-484619294352704021-0504050-0804041-1448154704067-0904021-0942450404021-0704030-0704105-0148176504001-7404020-2743391

Link, Deck LiftNut, Jam 1/2-20 LHRod End, Female - 1/2-20 LHRing, Retaining 1/2” External “E”Bellcrank Weldment, RH RearPin, DeckliftSlide Weldment, Height AdjustmentBolt, Shoulder 1/2 x 3/4”Bushing, .502 ID.Grip, Deck LatchDeck Latch (Includes items 9 & 10)Lockplate, DeckliftScrew, Cap 5/16-18 x 3” FHHSNut, Hex Serrated Flange 3/8-16Guide, LongBolt, Carriage 5/16-18 x 1”Guide, ShortBracket, Cutting Height AdjustmentBolt, Hex Head 3/8-16 x 1-1/2”Nut, Hex Serrated Flange 5/16-18Spring, Helper (61” & 72” Cutter Decks Only)Grease FittingSwivel Joint, LHNut, Hex 5/8-11Flatwasher, 5/8” (.656 x 1.312 x .095)Cotter Pin, 3/16 x 1”Bellcrank Weldment, LH RearChainStud, 5/8-11 x 26.0”Lever Assembly, Deck LevelSwivel Joint, RHLocknut, 3/8-16 Center LockRing, Retaining 1” External “E”Flatwasher, 1” (1.062 x 1.50 x .048)Lanyard, Deck Height PinRing Pin, 1/2 x 3.06”Nut, 3/8-16 Elastic StopFoot Pedal, Height AdjustmentNut, Hex Elastic Stop 1/2-13Lockwasher, 5/8”Capscrew, 5/8-11 x 1-1/2”Rod End, Female - 1/2-20 RHBolt, Hex Head 1/2-13 x 3”Nut, Jam 1/2-20 RHSpacer, Decklift Pedal

8

R section 8

sheeT meTal componenTs

STT-25CH-LP 2011 SMC

48

5026

30

25

12

15

19

9

1

23

24

31

32

33

34

2933

36

37

40

39

38

41

42

43

51

35

44

4515

27

22

4

20

28

15

1413

12

11

1016

17

20

5

8

7

1818

4

A

A

6

49

47

46

3

8

52

B

B

55

53

53

54

54

54

54

9

Rsection 8

sheeT meTal componenTs

ref. no.



1234567891011121314151617181920212223242526272829303132333435

363738

39

40

41

42434445

45148104001-0948337148262149172942481904001-11704019-05*4890342127404003-1242330804029-0104019-0304003-01486614358404003-0448262204021-0946232904019-0404017-2745148042348904021-0904001-1904001-12504021-1348155904021-20481657482028-0145145045195745182545145148102504021-074593445141604001-13404001-16743581435839277927804001-0104001-01423674481284

Fender Weldment, RHBolt, Hex Head, 5/16-18 x 1, ZincSpring, Seat LatchBearing w/ RaceSeat Plate w/DecalGuard, Fuel LineBolt, Hex Head 7/16-14 x 1-3/4” Nut, 7/16-14 Serrated FlangeBattery (not avail. through Scag)Pad, Battery Cover Cover, BatteryBolt, Carriage 5/16-18 x 3/4”Plate, Battery BoxWing Nut, 1/4-20 x 3/4”Nut, Hex Serrated Flange 5/16-18Bolt, Carriage 1/4-20 x 6”Rubber PadSpacer, Caster WheelBolt, Carriage 5/16-18 x 1”SealLocknut, 3/8-16, Elast. StopMain Frame w/DecalsNut, Hex Serrated Flange 3/8-16Screw, Hex Serrated Flange 3/8-16 x 1”Fender Weldment, LHFoot PlateNut, Hex Elastic Stop 3/8-16Bolt, Hex Head 3/8-16 x 1”Bolt, Hex Head 5/8-11 x 4”Nut, Hex Elastic Stop 5/8-11Cap, GreaseNut, Hex Elastic Stop 1.0-14Bearing W/RacePlug, 1/4-28 THD FormExtention Weldment, Caster 52V (LH)Extention Weldment, Caster 52V (RH)Extention Weldment, Caster 61V (LH) Extention Weldment, Caster 61V (RH)Seal, 2.00” OD. x 1.625” BoreNut, Hex Elastic Stop 1/2-13Yoke Weldment, Caster (52V)Yoke Weldment, Caster (61V)Bolt, Hex Head 1/2-13 x 7-1/2” (52V)Bolt, Hex Head 1/2-13 x 9-1/2” (61V)Sleeve, Caster Wheel (52V)Sleeve, Caster Wheel (61V)Wheel Assy, 52V (Incl. items 20, 54, 55)Wheel Assy, 61V, 72A (Incl. 20, 54, 55)Bolt, Hex Head 1/4-20 x 3/4”Bolt, Hex Head 1/4-20 x 3/4”Mounting Bracket, STT Cup HolderBumper, Rubber

4647484950

5152535455

04050-014843419240491731462045

462046

461908

461909

48114-1042528904001-0204019-0248566

Retaining Ring, .625” Ext. “E”Grip, Seat LatchCup Holder AssemblyLever Assembly, Seat ReleaseCaster Wheel Assembly (Incl. 31 thru 43) 52V (LH)Caster Wheel Assembly (Incl. 31 thru 43) 52V (RH)Caster Wheel Assembly (Incl. 31 thru 43) 61V (LH)Caster Wheel Assembly (Incl. 31 thru 43) 61V (RH)Grease FittingCover, Fuel Tank OpeningBolt, Hex Head 1/4-20 x 1-1/4”Nut, Serrated Flange 1/4-20Cable, Seat Stop

10

R section 8

sTT roll-oVer proTecTion sYsTem

2

3

4

4

2

3

4

34

1

1

1

7

8

6

9

5

7

5

11

1011

6 10

9

2

5

5

11

Rsection 8

sTT roll-oVer proTecTion sYsTem

ref.no.


1234567891011

46221004001-8704021-1904040-1348416804001-16304021-19484166484170484169484167

STT, ROPSBolt, Hex Head 1/2-13 x 4”Nut, Center Lock 1/2-13Flatwasher, 1/2-.562 x 1.375 x .109Pin Assembly (incl. #9 & #10)Bolt, Hex Head 1/2-13 x 3-3/4”Nut, Center Lock 1/2-13Stop Bracket, ROPSSpring, ROPSClip, ROPSSpring Clip, ROPS

12

R section 8

ref. no.


12345678910

922A484709484717484711484710484712481638484713484714484708

Suspension Seat Assembly w/seat beltArmrest Kit, LHSeat Belt KitRecliner Knob KitArmrest Kit, RHBack CoverSeat SwitchTrack KitSuspension Knob Kit\Seat Cushion

1

7

6

5

9

8

4

2

39

33

33

3

10

sTT suspension seaT

13

Rsection 8

noTes

14

R section 8

decK driVe componenTs

STT 2005 DDC

B

a

a

B

c

C

Frame

21

40

347

4647

43

424

41

45

59

53

854

72

5

6 64 63 62

752

55 960

61

101156

52

1215

65

58

52

1413

12

2017

45

18

66

1967 45

5621 57

58

52

22

1823

24 49 50

69

25 26 27

28 29 30

36

3534

3332

31

6848

51

38

7173

7039

53

45

46

52

44

45

45

45

37

73

16

45

52

7475

76

15

Rsection 8

decK driVe componenTsref. no.



1234567891011121314151617181920212223242526272829303132333435363738394041424344

45

42392548153148130948284548030-09461661482876483088481814815364829494818844831654832144830824363104063-14482244812844827454826674616094363246169748103543297481025481022433124329648114-0448677436444810224810244353446160848242404012-0804011-1104041-0704069-0143507452105

04019-04

Belt Guard, RearHinge, Belt GuardLatch, HoodRod Assembly, Clutch Anti-RotationClamp, CableClutch, Ogura GT-3.5Belt, Deck DriveSpring, Transmission IdlerPulley, Idler 5” Dia.Tapered Hub, 1” BorePulley, 6.70” Tapered BoreTapered Hub, 17mm BoreBelt, Pump Drive STTPulley, Idler 4” Dia.Pulley, 4.55” Dia.-1.125” BoreSpacer, Idler BearingKey, 5.0 x 5.0 x 25mmBall BearingBumper, RubberPulley, 6.35” O.D.Spring, PTOIdler Arm Weldment, PTO DrivePivot, Idler PTOSpindle Assembly, Deck DriveNut, 1.06”-18 ThreadSpindle Bushing, BottomSeal, 2.0” OD x 1.625” BoreRoller Bearing TaperedSpacer, OutsideSpacer, InsideGrease Fitting, 1/4-28Relief FittingSpindle HousingRoller Bearing TaperedSeal, 2.0” OD x 1.5” BoreShaft, Deck DriveIdler Arm Weldment, Pump DriveDriveshaft (Air-Cooled Engine)Set Screw, 3/8-16 x 3/4” Torx SocketScrew, #10-32 x .56”Flatwasher, 3/8 (.391 x .938 x .105”)Pin, Rue Cotter 3/8” Dia.Stud, Anti RotationPump Mounting Plate Weldment (STT-25CH-LP)Nut, Serrated Flange 3/8-16

46474849505152535455565758596061626364656667686970717273747576

04019-0204003-0704021-2204001-17604063-0604001-17104043-0404001-13504001-13604001-17004021-0504001-13604021-0904001-4504001-10904030-0204001-10104030-0504041-2804001-17204001-2104019-0304021-0904001-1904021-0504001-2104063-0204063-204241384306304001-19

Nut, Serrated Flange 1/4-20Bolt, Carriage 1/4-20 x 1/2”Nut, Elastic Stop 5/16-18 Grade 8Bolt, Hex Head 5/16-18 x 1-3/4” Grade 8Key, 1/4 x 1/4 x 1-1/2”Bolt, Hex Head 3/8-16 x 4-1/2” Grd 8 BlackWasher, 3/8” HardenedBolt, Hex Head 3/8-16 x 1-3/4” Grd 8 BlackBolt, Hex Head 3/8-16 x 1-1/2” Grd 8 BlackBolt, Hex Head 3/8-16 x 2-1/2” Grd.8Nut, Center Lock 3/8-16Bolt, Hex Head 3/8-16 x 1-1/2” Grd 8 BlackNut, Elastic Stop 3/8-16Bolt, Hex Head 3/8-16 x 2”Bolt, Hex Head 1/4-20 x 1-3/8”Lockwasher, 1/4” SpringBolt, Hex Head 7/16-20 x 2-1/2” UNFLockwasher, 7/16” SpringFlatwasher, 7/16 (.469 x 1.75 x .25”)Bolt, Hex Head 1/4-20 x 1” Grade 8Bolt, Hex Head 3/8-16 x 1-3/4”Nut, Serrated Flange 5/16-18Nut, Elastic Stop 3/8-16Bolt, Hex Head 3/8-16 x 1”Nut, Center Lock 3/8-16Bolt, Hex Head 3/8-16 x 1-3/4”Key, 1/4 x 1/4 x 2-1/4”Key, 1/4 x 1/4 x 1”BracketSpacerBolt, Hex Head 3/8-16 x 1”

16

R section 8

enGine and aTTachinG parTs - Kohler lp

STT 2005 EAPKH

1

3

7

8

2

5

910

9

14

FRAME

REF. PUMPMTG. WELDMENT

11

6

15

16

1012

4

1210

13

17

Rsection 8

enGine and aTTachinG parTs - Kohler lp

ref.no.


12345678910111213141516

42593304017-05**48251004110-01424691484565484052**04001-1904030-0404001-2104021-0904001-3245145904003-1204019-03

Muffler GuardScrew, Hex Serrated Flange 1/4-20 x 3/4”Muffler, Part Of Engine (Available only through Kohler)Oil Drain ExtensionU-Nut, 1/4-20Rear CoverHour Meter, InductiveEngine, Kohler 25 CH LP (Available only through Kohler, Eng. Spec. PS-CH730-0220)Bolt, Hex Head 3/8-16 x 1”Lockwasher, 3/8” SpringBolt, Hex Head 3/8-16 x 1-3/4”Nut, Hex Elastic Stop 3/8-16Bolt, Hex Head 3/8-16 x 1-1/4”Plate, Engine MountingBolt, Carriage 5/16-18 x 3/4”Nut, Hex Serrated Flange 5/16-18

** Available through the individual engine manufacturer.

18

R section 8

BraKe and sTeerinG componenTs

STT2006B&SC REV 1

A

1

1011

33

17

9

19

2341

1121

34

36

57

73

48

47

46

5

23

53

42

43 44 45

15

56

70

69

71

62

15

65

60

64

67

60

5241

3423

51

50

34

35

TO RH PUMP

TO LH PUMP

3736

2728

35

33

78

34

31

3029

8

9

32

13

B

9

B

25

18

72

495554

75

26

58

5

68

66

3736

61 5974

7

20

13

14

22

14

39

1624

3863

24

38

12

79

22

21

A

40

38

80

77

45

2

76

43

6

6

81

5

82

19

Rsection 8

BraKe and sTeerinG componenTs

ref. no.



12

34567

89101112131415161718

1920212223242526272829303132333435

36373839404142434445

48234046191446192304001-0904030-0348325048323845148345148404001-1704021-1004001-4504021-09423488482244360704069-0104001-1304021-1346160146160204003-044360004003-1204019-0304050-01436024591804003-0204040-1404021-084347748138904060-0104061-0648258604020-25436294362404020-2648258504021-1048415104001-18748114-0446108248154804001-2204019-06

Grip, Handle BarHandle Bar, LH (Includes item 1)Handle Bar, RH (Includes item 1)Bolt, Hex Head 5/16-18 x 1”Lockwasher, 5/16”Rubber SpacerBar, Control LeverControl Lever Weldment, LHControl Lever Weldment, RHBolt, Hex Head 5/16-18 x 2”Nut, Hex Elastic Stop 5/16-18Bolt, Hex Head 3/8-16 x 2”Nut, Hex Elastic StopMount, Control Linkage Ball Bearings, Neutral Return SpacerPin, Rue Cotter 3/8” Dia.Bolt, Hex Head, 5/16-18 x 2.75” ZincNut, Hex Elastic Stop 5/8-11Bracket, Control Lever LHBracket, Control Lever RHBolt, Carriage 5/16-18 x 1”Spacer, Bearing Bolt, Carriage 5/16-18 x 3/4”Nut, Hex Serrated Flange 5/16-18Ring, Retaining 5/8” External “E”SpacerBracket, Neutral ReturnBolt, Carriage 1/4-20 x 3/4”Flatwasher, 1/4” (.312 x .750 x .065”)Nut, Hex Elastic Stop 1/4-20Pin, Retaining SpringSpringRoll Pin, Spring 5/32” x 3/4”Pin, Cotter 9/16” x 1-1/2”Rod End, Male 3/8”-24 RH ThreadNut, 3/8”-24 RH ThreadTube, Control Link Air-Cooled EngineTube, Control Link Liquid-Cooled EngineNut, Hex 3/8”-24 LH ThreadRod End, Male 3/8”-24 LH ThreadLocknut, 5/16-18, Elastic StopGas DamperBolt, Hex Head 1/2-13 x 2-1/2” Grade 8Grease FittingLever, Parking Brake (Includes item 43)Grip, Parking BrakeBolt, Hex Head 3/8-16 x 2-3/4”Nut, Hex Serrated Flange 1/2-13

46474849505152535455

56

57585960616263646566676869

70717273747576777879808182

48343-0404064-0204061-0204004-34485444879604001-0804001-14748163704010-12

462100462101459534880704001-16304021-1904001-5248263904001-1248364404064-164306346143804063-2548155248165948166048185048185148185204028-024868042237304001-2042327942349104017-1604003-3604001-1948163804001-16804003-05483269

Clevis, Traction ControlPin, Clevis 3/8-16 x 1-1/16”Pin, Cotter 3/32 x .75”Rod, Parking BrakeRod End, LH ThreadBushing, Self AlignBolt, Hex Head 5/16-18 x 3/4”Bolt, Hex Hd 3/8-24 x 5-1/4”, 23/4” ThrdSwitchScrew, Hex-Slotted Washer Head #10 32 x 3/4”Brake Linkage, LHBrake Linkage, RHBellcrank, Brake ActuatorSpringBolt, Hex Head 1/2-13 x 3-3/4”Locknut, Hex 1/2-13 Center LockBolt, Hex Head 1/2-13 x 2-1/2”Wheel Motor, RossBolt, Hex Head, 5/16-18 x 1.75”, ZincBrake Band AssemblyPin, Clevis 3/8” Dia. x 1.93”SpacerWheel Hub/Brake Drum AssemblyKey, Woodruff 5/16 x 1”Wheel Assembly 23 x 10.5-12 (52” Only)Rim W/Valve Stem (52” Only)Tire, 23 x 10.5-12 (52” Only)Wheel Assembly 24 x 12-12 Turf MasterRim W/Valve StemTire, 24 x 12-12 Turf MasterLug Nut, 1/2-20Nut, Hex CastleThreaded PlateBolt, Hex Head 3/8-16 x 1-1/2”Plate Weldment, Motor Backing Actuator SwitchBolt, Hex Serrated Flange 5/16-18 x 3/4” Bolt, Carriage 3/8-16 x 4-3/4”Bolt, Hex Head 3/8-16 x 1”SwitchBolt, Hex Head 3/8-16 x 1-1/4” Grade 8 Bolt, Carriage 3/8-16 x 1-1/2”Knob

20

R section 8

hYdraulic sYsTem - Kohler lp

D

D

D

E

F

C

IH

GG

FE

A

A

B

C

DUMP VALVE

B

2009 STT-25CH-LP HS.eps

IH

39

23242640

342535

2131

339

30

30

111213

4

4

3

44 45 17

5

4

4

5

42

342535

188

2019

6

2241

2728

2946

38

2

2

361037

7

7

22

5

4

4

43 (2)

43 (2)

5

1

14

15

16

32

6

6

21

Rsection 8

hYdraulic sYsTem - Kohler lp

ref. no.



123456

7

89

10

11

12131415161718192021222324252627

282930313233343536373839

40

04110-0148136-1304001-034881148136-07482266-01

482266-02

482417482606

42352442352504043-04

04021-0948269604001-3204021-0948269548179304001-0904019-034875848247704021-0848116448150748603-0246145148257248257148136-134881104010-1048571-0242269448136-0548350-0248938-0248250504001-0804060-09482574482573423513

U-Nut 1/4-20Hose Clamp, 0.69” Dia.Bolt, Hex Head 1/4-20 x 2.0”Hose, 3/8” ID Pushlock - (order by inch)Clamp, Hose 1/2”Elbow, 90 Degree - 9/16” O-Ring x 3/8” HoseElbow, 90 Degree - 3/4” O-Ring x 3/8” HoseOil Filter BaseHose Assembly, 1/2” ID (Tank to Filter Base)Mounting Bracket - LH, Oil CoolerMounting Bracket - RH, Oil CoolerFlatwasher, 3/8” (.391 x .938 x .105”) Grade 8Nut, Hex Elastic Stop 3/8-16Pump, Right HandBolt, Hex Head, 3/8-16 x 1-1/4”Nut, Hex, Elastic Stop 3/8-16Pump, Left HandBlock, Pump ControlBolt, Hex Head 5/16-18 x 1.0” ZincNut, Serrated Flange 5/16-18Oil FilterTee, 3/4” O-Ring x JIC x 1/2” HoseNut, Hex Elastic Stop 1/4-20Cap, Hydraulic TankInsert, Filler NeckO-RingOil Reservoir Assembly (incl. 24, 27, 39)Elbow, 90 Degree .38” HoseBushing, .56” Dia. VitonHose Clamp, 0.69” Dia.Hose, 3/8” ID, Pushlock (order by inch)Screw, Phillips Head, 1/4-20 x 2"CapClamp Plate, Pump ControlClamp, HoseElbow, 90 Degree, 1/2” x 1/2”Bushing, 7/8”-14 JIC x 3/4”-16 O-RingCooler, OilBolt, Hex Head 5/16-18 x 3/4”Roll Pin, Spring 3/16 x 3/4”Elbow, 90 DegreeBushing, .78” Dia. VitonStrap, Hydraulic Tank

414243444546

42348548161148572-0404001-5904030-0204001-01

Support Bracket, Hydraulic TankHose Assembly, PumpUnion, 3/4”-16 JIC x 3/4”-16 O-RingBolt, Hex Head, 1/4-20 x 1-1/4”Lockwasher, 1/4” SpringBolt, Hex Head 1/4-20 x 3/4"

22

R section 8

lp sYsTem - Kohler

A

A

B

B

C

CD

D

TO VAPORIZER

FROM VAPORIZER

TO CARBURETOR

1

13

3

2

11

21

2

5

5

2

4

23

24

25

10

10

7

2 7

8

9

66

3

333

6

17

17

15

16

18

19

20

12

13

22

14

5

55

55

55

5

LP Tank Bracket Kit

23

Rsection 8

lp sYsTem - Kohler

ref. no.


12345678910111213141516171819202122232425

04001-1204001-1804001-1904019-0304019-0404041-07422386425254425261425262425263483888483889-01483903483909483910483911483912484000483899484033484034******

Bolt, Heax Head 5/16-18 x 1-3/4"Bolt, Head Head 3/8-16 x 3/4"Bolt, Hex Head 3/8-16 x 1"Nut, Serrated Flange 5/16-18Nut, Serrated Flange 3/8-16Flatwasher, 3/8-.391 x .938 x .105BraceMounting Bracket, Tank Support LHSupport, LP TankBrace, LP Tank Mounting BracketMounting Bracket, Tank Support RHLP Quick CouplerAdapter Fitting, 9/16-18 SAE x 1/4" PipeMounting Bracket Kit (incl. # 15, 16, 17, 18, 19)Mounting Bracket, LP Tank FrontMounting Bracket, LP Tank RearHandle, LP Tank Mounting BracketBracket, LP Tank LocatorBolt, Hex Head 1/4-20 x 3/8" LockingLP TankLP Fuel Line, 10"LP Fuel Line, 32"HoseHoseLP Regulator

** Available through the individual engine manufacturer.

24

R section 8

Bdp-16a hYdraulic pump assemBlY

OR

OR

PORT "A"SIDE

PORT "B"SIDE

Overhaul Seal K

it

1

23

4

5

6

7

89

10

11

12

13

14

15

1617

17

18

19

20

20

21

21

22

23

242526

27

28

29

30

25

Rsection 8

Bdp-16a hYdraulic pump assemBlY

ref.no.


123456789101112131415161718192021222324252627282930

HG70740HG51455HG70735HG51462HG51436HG2000015HG2000014HG2000025HG2000024HG2000032HG2000023HG2000038HG51092HG70581HG70738HG70739HG50641HG51437HG9005110-7500HG70743HG70742HG9005200-7500HG70736HG2513030HG9004100-1430HG50406HG50173HG2510071HG51457HG70402

Overhaul Seal KitValve PlateCylinder Block Kit - 16ccThrust Ball Bearing AssemblyVariable SwashplateSlot GuideTrunnion ArmBlock SpringBlock Thrust WasherShaft Ball BearingSpacerRetaining RingSealKit, Pump ShaftHousing KitTrunnion Seal KitPinO-RingStraight Thread PlugShock Valve Kit (.031 Orifice)Shock Valve Kit (.024 Orifice)Straight Thread PlugEnd Cap KitBypass Valve KitO-RingGerotor Assembly (.19 cu.in./rev.)Socket Head Cap Screw (M8 x 1.25-25mm)Charge Pump Kit (.19 STD. Splined)Hex Screw, Flanged Head (M10 x 1.50-65mm)Charge Relief Kit

26

R section 8

elecTrical sYsTem - Kohler lp

SCAG

POW

ER E

QU

IPM

EN

T

21

1

34

5

6

1213

17

STT-25CP-LP 2009 ES

10

10

11

17

18

1514

19

20

22

23

24

25

1

28

27

14

15

9

10

11

8

B

B 7

15

14

16

a

26

18

a

c

c

29

2

20

20

2

3132

30

TOMAIN HARNESS

TOENGINE

33

27

Rsection 8

elecTrical sYsTem - Kohler lp

ref.no.


123

456789101112131415161718192021222324252627282930313233

4846544829848336646206948017-0448017-034619164879848395748301304031-0104020-0148175545187904030-0204001-0104110-0148154404010-0148163804001-4448029-2204020-0248029-1148030-0948136-0548359904002-1204031-03483642482588483629483571484078

Wire Harness, STT-BV/CHFuse, 20 AMPKey, IgnitionKey Assembly w/FobNut, Hex 5/8-32Lockwasher, 5/8” InternalInstrument Panel, Top w/DecalsKey SwitchSwitch, PTORelayLockwasher, #10 External ToothNut, Hex #10-32AmmeterBase, Instrument PanelLockwasher, 1/4”Bolt, Hex Head 1/4-20 x 3/4”U-Nut, 1/4-20Throttle And Choke Controls (Kohler)Screw, Phillips Washer Head #10-32 x 1/2”Switch, Interlock-SeatBolt, Hex Head 1/4-20 x 1/2”Cable, Battery - Red Nut, Hex 1/4-20Cable, Battery - BlackClamp, Cable 1/2” ID.Clamp, Cable 3/4” ID.Electronic ModuleBolt, Hex Head M8-1.25 x 20mmLockwasher, 5/16” External ToothDouble Fuse Assembly, Sealed (Incl. items 2, 42, 43, 44)Clip, WireFuse HolderCover, Sealed DoubleWire Harness Adapter, Kohler

28

R section 8

replacemenT decals and informaTion plaTes

1 2

5

3

6

4

9

16

18

8

2011 STT-25CH-LP Decals 1

WARNINGINSTALL BELT COVER BEFORE

OPERATING MACHINEREAD OPERATOR'S MANUAL

481568

FORWARD

REVERSEFR

13

Heavy-DutyCommercial

481971

12

17

10

11

15

14

483762

CHOKESLOW FAST

482983

PUSH IN TO DISENGAGE

MOWER DECKPULL OUT TO ENGAGE

WARNINGOperation of this equipmentmay create sparks that canstart fires around dry vegetation. A spark arrestor may be required.The operator should contact local fire agencies for laws or regulations relating tofire prevention requirements.

483900

__________ __________ __________ ____________________ __________ __________ ____________________ __________ __________ ____________________ __________ __________ __________

California Only

29

Rsection 8

replacemenT decals and informaTion plaTes

ref. no.



12345

67891011121314151617181920

483407483406483044483900483200483201481568481663481971483402484293483425482515482983483633483158482565482493484321484320482577

Decal, Danger-Spinning BladesDecal, Warning-Rotating BladesDecal, PatentsDecal, Warning Spark ArrestorDecal, 52” Velocity PlusDecal, 61” Velocity PlusDecal, Traction ControlDecal, Stripes-LHDecal, Heavy Duty CommercialDecal, Belt CoverDecal, Start / DriveDecal, ROPSDecal, Instrument Panel - UpperDecal, Instrument Panel - LowerDecal, Seat ReplacementDecal, ROPSDecal, Cutting Height - LowerDecal, Cutting Height - UpperDecal, Start/Drive ProcedureDecal, STT AdjustmentsDecal, Turf Tiger

212223242526****

4834054832294837274840448407048166446198201411

Decal, WarningDecal, Turf TigerDecal, Scag LogoDecal, Metalcraft-Made In USADecal, Turf Tiger PropaneDecal, Stripes-RHSpanish Decal Kit, STTDVD Video, Tips for Safe Operation of Your Scag Zero-Turn Mower (not shown)

481569

R

20

2011 STT-CHLP Decals Page2

22

726

19

25

21

R

483727

23

24

484070

PROPANE

481663

4816

64

48404

ISO 9001 Registered

30

R section 8

elecTrical schemaTic - Kohler lp

Kohler STT SchematicSerial No. 7700001 & Higher

RELAY

MODULEPLUG

POSAMPMETER

NEGAMPMETER

PTOSWITCH

KEYSWITCH

ENGINE

CLUTCH

NEG POSHOURMETER

GROUND

R.H. NEUTRALSWITCH

20 AMP FUSE20 AMP FUSE

BRAKEINTERLOCK

SWITCH

SEATSWITCH

L.H. NEUTRALSWITCH

DIODE

DIODE

GRN W/WHT STRIPE

GRN W/BLK STRIPE

GREEN

RED W/YEL STRIPE

PINK

RED

GRN W/BLK STRIPE

WHITE

BLACK

LIGHT BLUE

ORANGE

BROWN

RED

RED

BLUE

RED

LIGHT BLUE

YEL W/RED STRIPE

RED W/YEL STRIPE

RED

YELLOW

RED

RED

WHITE

WHITE

BLACK

BLACK

GREEN

YEL W/RED STRIPE

RED

RED

PINK

RED

RED

YELLOW

YELLOW

RED

RED

BROWN

OR

AN

GE

BLU

E

YE

LLO

W

GR

N W

/WH

T S

TR

IPE

RE

D

WH

ITE

RE

D W

/WH

T S

TR

IPE

RE

D

RED

RED

RED W/WHT STRIPE

BLA

CK

BLU

E

RE

D

BLA

CK

BLA

CK

BLA

CK

DIODE(600V 2A)

stt-lp ipl manual

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