ILLUSTRATED
30
31
32
33
34
29
33
36
37
40
39
38
41
35
18
18
PARTS
IPL
MANUAL
Model STT-25CH-LP
Turf Tiger
THIS MANUAL CONTAINS THE ILLUSTRATED PARTS LIST FOR MODELS:
STT52V-25CH-LP with a serial number of F5300001 to F5399999
STT61V-25CH-LP with a serial number of F5500001 to F5599999
© 2011
Scag Power Equipment
Division of Metalcraft of Mayville, Inc.
Part No. 06214
Printed 3/2011
Printed in USA
R
Table of Contents
Table of Contents
52V 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
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
I
R
52V CUTTER DECK
44 61 63
69
12
65
64
52
58
54
17
59
24
14
56
28
56
33
3
A
A
B
B
4
14 29 20
53
2852
24
58
24
52
73
66
32
13
68
55
55
29
58
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
68
STT 2008 CD
14
29
12
30
28
31
25
31
21
47
51
12
23
70
71
22
13
72
74
28
29
13
26
57
75
76
77
78
79
80
81
83
84
85
86
Section 8
2
R
Section 8
52V CUTTER DECK
Ref.
Part No. Description
No.
1
461859
2
04003-40
3
04019-04
4
481625-01
5
481632
6
04003-26
7
422478
8
04017-27
9
04043-06
10
04021-05
11
461845
12
04001-11
04001-12
13
04021-22
14
04020-09
15
451240
16
04001-41
17
04003-12
18
04001-108
19
04063-08
20
04063-01
21
04043-04
22
04001-176
23
04019-03
24
04001-172
25
48100-15
26
04030-03
27
04040-15
28
04041-07
29
04021-09
30
04001-62
31
04001-54
32
04001-20
33
04001-136
34
461663
35
43589
36
481024
37
481022
38
43644
39
43312
40
43296
41
481025
42
43297
43
481035
44
48114-04
45
48677
Cutter Deck Velocity Plus
Bolt, Carriage 7/16-14 x 1-1/4”
Nut, Hex Serr. Flng 3/8-16
Wing nut, 3/8-16
Anti-Scalp Wheel
Bolt, Carriage 3/8-16 x 4”
Anti-Scalp Wheel Bracket
Bolt, Hex Serr. Flng 3/8-16 x 1”
Flatwasher, 5/8” Hardened
Locknut, 3/8-16 Center Lock
Discharge Chute
Bolt, Hex Head 5/16-18 x 1-3/4” - Front
Bolt, Hex Head 5/16-18 x 1-1/2” - Rear
Nut, Hex Elastic Stop 5/16-18 Grd 8
Nut, 5/8-11 UNC
Push Arm Shaft
Bolt, 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”) HD
Bolt, HH 5/16-18 x 1-3/4”
Nut, Hex Serr. Flng 5/16-18
Bolt, HH 1/4-20 x 1” Grd 8
Bushing, .376” I.D. Oilite
Lockwasher, 5/16”
Flatwasher, 5/16” (.375 x .875 x .083”)
Flatwasher, 3/8” (.391 x .938 x .105”)
Nut, Hex Elastic Stop 3/8-16
Bolt, 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 8
Spindle Assembly
Spindle Shaft
Seal, Top
Bearing Assembly
Spindle Housing
Spacer, Outside
Spacer, Inside
Seal, Bottom
Spindle Bushing, Bottom
Nut, Special 1-1/16-18
Grease Fitting
Relief Fitting, Tapered Spindle
Ref.
Part No. Description
No.
46
483378
47
482295
48
482878
49
482486
50
482281
51
45944
52
48926
53
48141
54
461842
55
48224
56
483215
57
461929
58
482744
59
424798
60
422412
61
461516
62
43590
63
04020-16
64
48763
65
04001-79
66
483704
67
482747
68
04110-03
69
04021-13
70
424208
72
43503
73
424840
74
04003-23
75
04040-11
76
04021-11
77
483167
78
04003-12
79
04040-04
80
04021-04
81
483176
82
48038
83
04021-10
84
43763
85
424799
86
04001-154
Spring, Discharge Chute
Wheel, Anti-Scalp
Cutter Blade, 18”
Gearbox Assm, Deck Drive
Belt, Cutter Deck Drive
Roller Shaft
Tapered Hub, 1-1/8” Bore
Tapered Hub, 1” Bore
Idler Arm, Cutter Deck
Bearings, Ball
Pulley, Idler
Lever Assembly, Deck Level (Incl. 77)
Pulley, 5.75” O.D. (52”)
Mounting Plate, RH Gearbox
Belt, Cover
Pusharm (includes items 44, 63 & 64)
Spacer, Spindle Bottom
Nut, Hex Head 5/8-18 UNF
Rod End, 5/8” Male RH Thrd
Bolt, Hex Head 5/8-11 x 4-1/2”
Spring, Cutter Deck
Pulley, 6.95” O.D.
U-Nut, 3/8-16
Nut, Hex Elastic Stop 5/8-11
Discharge Baffle 52V
Pivot, Idler - Short
Baffle, Custom Cut 52V
Bolt, Carriage 3/8-16 x 1”
Flatwasher, 7/16” (.500 x 1.25 x .083”)
Nut, Elastic Stop 7/16-14
Bolt, Deck Adjust
Bolt, Carraige 5/16-18 x 3/4”
Flatwasher, 5/16”
Nut, Center Lock 5/16-18
Wear Pad
Wheel, Anti-Scalp
Nut, Elastic Stop 5/16-18
Spacer, Gearbox Mount
Mounting Plate, LH Gearbox
Bolt, HH 5/16-18 x 4-3/4”
3
R
61V Cutter Deck
44 61 63
69
12
65
64
52
58
54
17
59
24
14
56
28
56
33
3
A
A
B
B
4
14 29 20
53
2852
24
58
24
52
73
66
32
13
68
55
55
29
58
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
68
STT-EFI 2008 CD
14
29
12
30
28
31
25
31
21
47
51
12
23
71
22
13
72
74
28
29
13
26
57
75
76
77
78
79
80
81
83
84
85
70
Section 8
4
R
Section 8
61V Cutter Deck
Ref.
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
Part No. Description
461863
04003-40
04019-04
481625-01
481632
04003-26
422478
04017-27
04043-06
04021-05
461846
04001-12
04021-22
04020-09
451240
04001-41
04003-12
04001-108
04063-08
04063-01
04043-04
04001-176
04019-03
04001-172
48100-15
04030-03
04040-15
04041-07
04021-09
04001-62
04001-54
04001-20
04001-136
461663
43589
481024
481022
43644
43312
43296
481025
43297
481035
48114-04
48677
Cutter Deck Velocity Plus
Bolt, Carriage 7/16-14 x 1-1/4”
Nut, Hex Serr. Flng. 3/8-16
Wing Nut, 3/8-16
Anti-Scalp Wheel
Bolt, Carriage 3/8-16 x 4”
Anti-Scalp Wheel Bracket
Bolt, Hex Serr. Flng. 3/8-16 x 1”
Flatwasher, 5/8” Hardened
Locknut, 3/8-16 Center Lock
Discharge Chute
Bolt, Hex Hd. 5/16-18 x 1-1/2” - Rear
Nut, Hex Elastic Stop 5/16-18 Grd. 8
Nut, 5/8-11 UNC
Pusharm Shaft
Bolt, 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”) HD
Bolt, Hex Hd. 5/16-18 x 1-3/4”
Nut, Hex Serr. Flng. 5/16-18
Bolt, Hex Hd. 1/4-20 x 1” Grd. 8
Bushing, .376” I.D. Oilite
Lockwasher, 5/16”
Flatwasher, 5/16” (.375 x .875 x .083”)
Flatwasher, 3/8” (.391 x .938 x .105”)
Nut, Hex Elastic Stop 3/8-16
Bolt, 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. 8
Spindle Assembly
Spindle Shaft
Seal, Top
Bearing Assembly
Spindle Housing
Spacer, Outside
Spacer, Inside
Seal, Bottom
Spindle Bushing, Bottom
Nut, Special 1-1/16-18
Grease Fitting
Relief Fitting, Tapered Spindle
Ref.
No.
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
Part No. Description
483378
482295
482879
482486
481558
45944
48926
48141
461842
48224
483215
461929
482745
424798
424325
461516
43590
04020-16
48763
04001-79
483704
482746
04110-03
04021-13
04001-154
424209
43503
424841
04003-23
04040-11
04021-11
483167
04003-12
04040-04
04021-04
483176
48038
04021-10
43763
424799
Spring, Discharge Chute
Wheel, Anti-Scalp
Cutter Blade, 21”
Gearbox Assembly, Deck Drive
Belt, Cutter Deck Drive
Roller Shaft
Tapered Hub, 1-1/8” Bore
Tapered Hub, 1” Bore
Idler Arm, Cutter Deck
Bearings, Ball
Pulley, Idler
Lever Assembly, Deck Level (Incl. 77)
Pulley, 6.35” O.D. (61”)
Mounting Plate, RH Gearbox
Belt, Cover
Pusharm (Incl. 44, 63 & 64)
Spacer, Spindle Bottom
Nut, Hex Hd. 5/8-18 UNF
Rod End, 5/8” Male RH Thread
Bolt, Hex Hd. 5/8-11 x 4-1/2”
Spring, Cutter Deck
Pulley, 6.75 O.D.
U-Nut, 3/8-16
Nut, Hex Elastic Stop 5/8-11
Bolt, Hex Hd. 5/16-18 x 4-3/4”
Discharge Baffle 61V
Pivot, Idler - Short
Baffle, Custom Cut 61V
Bolt, Carriage 3/8-16 x 1”
Flatwasher, 7/16 (.500 x 1.25 x .083”)
Nut, Elastic Stop 7/16-14
Bolt, Deck Adjust
Bolt, Carriage 5/16-18 x 3/4”
Flatwasher, 5/16”
Nut, Center Lock 5/16-18
Wear Pad
Wheel, Anti-Scalp
Nut, Elastic Stop 5/16-18
Spacer, Gearbox Mount
Mounting Plate, LH Gearbox
5
R
CUTTER DECK CONTROLS
STT-28CAT 2008CDC
6
4
21
19
14
32
35
36
34
33
19
14
11
13
4
3
2
5
44
1
42
41
38
14
39
40
37
43
45
7
8
9
12
18
17
16
15
21
14
19
20
22
27
14
19
28
14
19
25
26
23
14
19
CUTTER DECK
19
28
30
24
25
29
24
31
25
26
14
24
10
Section 8
6
R
Section 8
CUTTER DECK CONTROLS
Ref.
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
Part No. Description
481764
04020-28
481766
04050-10
45905
43487
482429
04009-02
48100-14
481428
462102
424857
04014-03
04019-04
423509
04003-04
422381
423463
04001-20
04019 -03
481598
48114-04
43526
04020-09
04040-09
04061-07
45904
48540
04004-48
461929
43527
04021-05
04050-08
04041-14
481547
04067-09
04021-09
424504
04021-07
04030-07
04105-01
481765
04001-74
04020-27
43391
Link, Deck Lift
Nut, Jam 1/2-20 LH
Rod End, Female - 1/2-20 LH
Ring, Retaining 1/2” External “E”
Bellcrank Weldment, RH Rear
Pin, Decklift
Slide Weldment, Height Adjustment
Bolt, Shoulder 1/2 x 3/4”
Bushing, .502 ID.
Grip, Deck Latch
Deck Latch (Includes items 9 & 10)
Lockplate, Decklift
Screw, Cap 5/16-18 x 3” FHHS
Nut, Hex Serrated Flange 3/8-16
Guide, Long
Bolt, Carriage 5/16-18 x 1”
Guide, Short
Bracket, Cutting Height Adjustment
Bolt, Hex Head 3/8-16 x 1-1/2”
Nut, Hex Serrated Flange 5/16-18
Spring, Helper (61” & 72” Cutter Decks Only)
Grease Fitting
Swivel Joint, LH
Nut, Hex 5/8-11
Flatwasher, 5/8” (.656 x 1.312 x .095)
Cotter Pin, 3/16 x 1”
Bellcrank Weldment, LH Rear
Chain
Stud, 5/8-11 x 26.0”
Lever Assembly, Deck Level
Swivel Joint, RH
Locknut, 3/8-16 Center Lock
Ring, Retaining 1” External “E”
Flatwasher, 1” (1.062 x 1.50 x .048)
Lanyard, Deck Height Pin
Ring Pin, 1/2 x 3.06”
Nut, 3/8-16 Elastic Stop
Foot Pedal, Height Adjustment
Nut, Hex Elastic Stop 1/2-13
Lockwasher, 5/8”
Capscrew, 5/8-11 x 1-1/2”
Rod End, Female - 1/2-20 RH
Bolt, Hex Head 1/2-13 x 3”
Nut, Jam 1/2-20 RH
Spacer, Decklift Pedal
7
R
STT-25CH-LP 2011 SMC
48
50
26
30
25
12
15
19
9
1
23
24
31
32
33
34
29
33
36
37
40
39
38
41
42
43
51
35
44
45
15
27
22
4
20
28
15
14
13
12
11
10
16
17
20
5
8
7
18
18
4
A
A
6
49
47
46
3
8
52
B
B
55
53
53
54
54
54
54
SHEET METAL COMPONENTS
Section 8
8
R
Section 8
SHEET METAL COMPONENTS
Ref.
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
Part No. Description
451481
04001-09
483371
482621
491729
424819
04001-117
04019-05
*
48903
421274
04003-12
423308
04029-01
04019-03
04003-01
48661
43584
04003-04
482622
04021-09
462329
04019-04
04017-27
451480
423489
04021-09
04001-19
04001-125
04021-13
481559
04021-20
481657
482028-01
451450
451957
451825
451451
481025
04021-07
45934
451416
04001-134
04001-167
43581
43583
9277
9278
04001-01
04001-01
423674
481284
Fender Weldment, RH
Bolt, Hex Head, 5/16-18 x 1, Zinc
Spring, Seat Latch
Bearing w/ Race
Seat Plate w/Decal
Guard, Fuel Line
Bolt, Hex Head 7/16-14 x 1-3/4”
Nut, 7/16-14 Serrated Flange
Battery (not avail. through Scag)
Pad, Battery Cover
Cover, Battery
Bolt, Carriage 5/16-18 x 3/4”
Plate, Battery Box
Wing Nut, 1/4-20 x 3/4”
Nut, Hex Serrated Flange 5/16-18
Bolt, Carriage 1/4-20 x 6”
Rubber Pad
Spacer, Caster Wheel
Bolt, Carriage 5/16-18 x 1”
Seal
Locknut, 3/8-16, Elast. Stop
Main Frame w/Decals
Nut, Hex Serrated Flange 3/8-16
Screw, Hex Serrated Flange 3/8-16 x 1”
Fender Weldment, LH
Foot Plate
Nut, Hex Elastic Stop 3/8-16
Bolt, Hex Head 3/8-16 x 1”
Bolt, Hex Head 5/8-11 x 4”
Nut, Hex Elastic Stop 5/8-11
Cap, Grease
Nut, Hex Elastic Stop 1.0-14
Bearing W/Race
Plug, 1/4-28 THD Form
Extention 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” Bore
Nut, Hex Elastic Stop 1/2-13
Yoke 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 Holder
Bumper, Rubber
Ref.
No.
46
47
48
49
50
51
52
53
54
55
Part No. Description
04050-01
484341
9240
491731
462045
462046
461908
461909
48114-10
425289
04001-02
04019-02
48566
Retaining Ring, .625” Ext. “E”
Grip, Seat Latch
Cup Holder Assembly
Lever Assembly, Seat Release
Caster 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 Fitting
Cover, Fuel Tank Opening
Bolt, Hex Head 1/4-20 x 1-1/4”
Nut, Serrated Flange 1/4-20
Cable, Seat Stop
9
R
STT ROLL-OVER PROTECTION SYSTEM
2
3
4
4
2
3
4
3
4
1
1
1
7
8
6
9
5
7
5
11
10
11
6
10
9
2
5
5
Section 8
10
R
Section 8
STT ROLL-OVER PROTECTION SYSTEM
Ref.
No.
1
2
3
4
5
6
7
8
9
10
11
Part No. Description
462210
04001-87
04021-19
04040-13
484168
04001-163
04021-19
484166
484170
484169
484167
STT, ROPS
Bolt, Hex Head 1/2-13 x 4”
Nut, Center Lock 1/2-13
Flatwasher, 1/2-.562 x 1.375 x .109
Pin Assembly (incl. #9 & #10)
Bolt, Hex Head 1/2-13 x 3-3/4”
Nut, Center Lock 1/2-13
Stop Bracket, ROPS
Spring, ROPS
Clip, ROPS
Spring Clip, ROPS
11
R
3
4
7
6
5
11
10
9
8
4
3
1
2
2
13
12
12
12
12
STT SUSPENSION SEAT
Section 8
Ref.
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
Part No. Description
9292
04001-178
04040-11
483594
482950
482945
482946
482940
482943
482948
482942
482952
482944
482948
482941
04001-12
483440
Suspension Seat Assembly w/seat belt
Bolt, Hex Head 7/16-20 x 1”
Flatwasher, 7/16-.500 x 1.25 x .083
Retractable Seat Belt
Armrest Only
Armrest Assembly Kit, LH
Armrest Assembly Kit, RH
Back Cushion Kit
Lumbar Kit
Knob Kit
Shock Absorber Kit
Seat Adjustment, Track Set
Weight Adjustment Kit
Knob Kit
Seat Cushion Kit
Seat Drain Kit (Included with Seat Cushion)
Bolt, Hex Head 5/16-18 x 1-3/4"
Wire Harness Adapter
12
R
Section 8
NOTES
13
R
DECK DRIVE COMPONENTS
STT 2005 DDC
B
A
A
B
C
C
Frame
2
1
40
3
47
46
47
43
42
4
41
45
59
53
8
54
72
5
6
64
63
62
7
52
55
9
60
61
10
11
56
52
12
15
65
58
52
14
13
12
20
17
45
18
66
19
67
45
56
21
57
58
52
22
18
23
24
49
50
69
25
26
27
28
29
30
36
35
34
33
32
31
68
48
51
38
71
73
70
39
53
45
46
52
44
45
45
45
37
73
16
45
52
74
75
76
Section 8
14
R
Section 8
DECK DRIVE COMPONENTS
Ref.
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
Part No. Description
423925
481531
481309
482845
48030-09
461661
482876
483088
48181
481536
482949
481884
483165
483214
483082
43631
04063-14
48224
481284
482745
482667
461609
43632
461697
481035
43297
481025
481022
43312
43296
48114-04
48677
43644
481022
481024
43534
461608
482424
04012-08
04011-11
04041-07
04069-01
43507
452105
04019-04
Belt Guard, Rear
Hinge, Belt Guard
Latch, Hood
Rod Assembly, Clutch Anti-Rotation
Clamp, Cable
Clutch, Ogura GT-3.5
Belt, Deck Drive
Spring, Transmission Idler
Pulley, Idler 5” Dia.
Tapered Hub, 1” Bore
Pulley, 6.70” Tapered Bore
Tapered Hub, 17mm Bore
Belt, Pump Drive STT
Pulley, Idler 4” Dia.
Pulley, 4.55” Dia.-1.125” Bore
Spacer, Idler Bearing
Key, 5.0 x 5.0 x 25mm
Ball Bearing
Bumper, Rubber
Pulley, 6.35” O.D.
Spring, PTO
Idler Arm Weldment, PTO Drive
Pivot, Idler PTO
Spindle Assembly, Deck Drive
Nut, 1.06”-18 Thread
Spindle Bushing, Bottom
Seal, 2.0” OD x 1.625” Bore
Roller Bearing Tapered
Spacer, Outside
Spacer, Inside
Grease Fitting, 1/4-28
Relief Fitting
Spindle Housing
Roller Bearing Tapered
Seal, 2.0” OD x 1.5” Bore
Shaft, Deck Drive
Idler Arm Weldment, Pump Drive
Driveshaft (Air-Cooled Engine)
Set Screw, 3/8-16 x 3/4” Torx Socket
Screw, #10-32 x .56”
Flatwasher, 3/8 (.391 x .938 x .105”)
Pin, Rue Cotter 3/8” Dia.
Stud, Anti Rotation
Pump Mounting Plate Weldment
(STT-25CH-LP)
Nut, Serrated Flange 3/8-16
Ref.
No.
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
Part No. Description
04019-02
04003-07
04021-22
04001-176
04063-06
04001-171
04043-04
04001-135
04001-136
04001-170
04021-05
04001-136
04021-09
04001-45
04001-109
04030-02
04001-101
04030-05
04041-28
04001-172
04001-21
04019-03
04021-09
04001-19
04021-05
04001-21
04063-02
04063-20
424138
43063
04001-19
Nut, Serrated Flange 1/4-20
Bolt, Carriage 1/4-20 x 1/2”
Nut, Elastic Stop 5/16-18 Grade 8
Bolt, Hex Head 5/16-18 x 1-3/4” Grade 8
Key, 1/4 x 1/4 x 1-1/2”
Bolt, Hex Head 3/8-16 x 4-1/2” Grd 8 Black
Washer, 3/8” Hardened
Bolt, Hex Head 3/8-16 x 1-3/4” Grd 8 Black
Bolt, Hex Head 3/8-16 x 1-1/2” Grd 8 Black
Bolt, Hex Head 3/8-16 x 2-1/2” Grd.8
Nut, Center Lock 3/8-16
Bolt, Hex Head 3/8-16 x 1-1/2” Grd 8 Black
Nut, Elastic Stop 3/8-16
Bolt, Hex Head 3/8-16 x 2”
Bolt, Hex Head 1/4-20 x 1-3/8”
Lockwasher, 1/4” Spring
Bolt, Hex Head 7/16-20 x 2-1/2” UNF
Lockwasher, 7/16” Spring
Flatwasher, 7/16 (.469 x 1.75 x .25”)
Bolt, Hex Head 1/4-20 x 1” Grade 8
Bolt, Hex Head 3/8-16 x 1-3/4”
Nut, Serrated Flange 5/16-18
Nut, Elastic Stop 3/8-16
Bolt, Hex Head 3/8-16 x 1”
Nut, Center Lock 3/8-16
Bolt, 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”
Bracket
Spacer
Bolt, Hex Head 3/8-16 x 1”
15
R
Section 8
STT 2005 EAPKH
1
3
7
8
2
5
9
10
9
14
FRAME
REF. PUMP
MTG. WELDMENT
11
6
15
16
10
12
4
12
10
13
ENGINE AND ATTACHING PARTS - KOHLER LP
16
R
Section 8
ENGINE AND ATTACHING PARTS - KOHLER LP
Ref.
No.
Part No. Description
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
422593
04017-05
**
482510
04110-01
424691
483537
484052**
04001-19
04030-04
04001-21
04021-09
04001-32
451459
04003-12
04019-03
Muffler Guard
Screw, Hex Serrated Flange 1/4-20 x 3/4”
Muffler, Part Of Engine (Available only through Kohler)
Oil Drain Extension
U-Nut, 1/4-20
Rear Cover
Hour Meter
Engine, Kohler 25 CH LP (Available only through Kohler, Eng. Spec. PS-CH730-0220)
Bolt, Hex Head 3/8-16 x 1”
Lockwasher, 3/8” Spring
Bolt, Hex Head 3/8-16 x 1-3/4”
Nut, Hex Elastic Stop 3/8-16
Bolt, Hex Head 3/8-16 x 1-1/4”
Plate, Engine Mounting
Bolt, Carriage 5/16-18 x 3/4”
Nut, Hex Serrated Flange 5/16-18
** Available through the individual engine manufacturer.
17
R
BRAKE AND STEERING COMPONENTS
STT2006B&SC REV 1
A
1
10
11
33
17
9
19
23
41
11
21
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
52
41
34
23
51
50
34
35
TO RH PUMP
TO LH PUMP
37
36
27
28
35
33
78
34
31
30
29
8
9
32
13
B
9
B
25
18
72
49
55
54
75
26
58
5
68
66
37
36
61
59
74
7
20
13
14
22
14
39
16
24
38
63
24
38
12
79
22
21
A
40
38
80
77
45
2
76
4
3
6
6
81
5
82
Section 8
18
R
Section 8
BRAKE AND STEERING COMPONENTS
Ref.
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
Part No. Description
482340
461914
461923
04001-09
04030-03
483250
483238
451483
451484
04001-17
04021-10
04001-45
04021-09
423488
48224
43607
04069-01
04001-13
04021-13
461601
461602
04003-04
43600
04003-12
04019-03
04050-01
43602
45918
04003-02
04040-14
04021-08
43477
481389
04060-01
04061-06
482586
04020-25
43629
43624
04020-26
482585
04021-10
482794
04001-187
48114-04
461082
481548
04001-22
04019-06
Grip, Handle Bar
Handle Bar, LH (Includes item 1)
Handle Bar, RH (Includes item 1)
Bolt, Hex Head 5/16-18 x 1”
Lockwasher, 5/16”
Rubber Spacer
Bar, Control Lever
Control Lever Weldment, LH
Control Lever Weldment, RH
Bolt, Hex Head 5/16-18 x 2”
Nut, Hex Elastic Stop 5/16-18
Bolt, Hex Head 3/8-16 x 2”
Nut, Hex Elastic Stop
Mount, Control Linkage
Ball Bearings, Neutral Return
Spacer
Pin, Rue Cotter 3/8” Dia.
Bolt, Hex Head, 5/16-18 x 2.75” Zinc
Nut, Hex Elastic Stop 5/8-11
Bracket, Control Lever LH
Bracket, Control Lever RH
Bolt, Carriage 5/16-18 x 1”
Spacer, Bearing
Bolt, Carriage 5/16-18 x 3/4”
Nut, Hex Serrated Flange 5/16-18
Ring, Retaining 5/8” External “E”
Spacer
Bracket, Neutral Return
Bolt, Carriage 1/4-20 x 3/4”
Flatwasher, 1/4” (.312 x .750 x .065”)
Nut, Hex Elastic Stop 1/4-20
Pin, Retaining Spring
Spring
Roll Pin, Spring 5/32” x 3/4”
Pin, Cotter 9/16” x 1-1/2”
Rod End, Male 3/8”-24 RH Thread
Nut, 3/8”-24 RH Thread
Tube, Control Link Air-Cooled Engine
Tube, Control Link Liquid-Cooled Engine
Nut, Hex 3/8”-24 LH Thread
Rod End, Male 3/8”-24 LH Thread
Locknut, 5/16-18, Elastic Stop
Gas Damper
Bolt, Hex Head 1/2-13 x 2-1/2” Grade 8
Grease Fitting
Lever, Parking Brake (Includes item 43)
Grip, Parking Brake
Bolt, Hex Head 3/8-16 x 2-3/4”
Nut, Hex Serrated Flange 1/2-13
Ref.
No.
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
Part No. Description
48343-04
04064-02
04061-02
04004-34
48544
48796
04001-08
04001-147
481637
04010-12
462100
462101
45953
48807
04001-163
04021-19
04001-52
482639
04001-12
483644
04064-16
43063
461438
04063-25
481552
481659
481660
481850
481851
481852
04028-02
48680
422373
04001-20
423279
423491
04017-16
04003-36
04001-19
481638
04001-168
04003-38
483269
Clevis, Traction Control
Pin, Clevis 3/8-16 x 1-1/16”
Pin, Cotter 3/32 x .75”
Rod, Parking Brake
Rod End, LH Thread
Bushing, Self Align
Bolt, Hex Head 5/16-18 x 3/4”
Bolt, Hex Hd 3/8-24 x 5-1/4”, 23/4” Thrd
Switch
Screw, Hex-Slotted Washer Head #10 32
x 3/4”
Brake Linkage, LH
Brake Linkage, RH
Bellcrank, Brake Actuator
Spring
Bolt, Hex Head 1/2-13 x 3-3/4”
Locknut, Hex 1/2-13 Center Lock
Bolt, Hex Head 1/2-13 x 2-1/2”
Wheel Motor, Ross
Bolt, Hex Head, 5/16-18 x 1.75”, Zinc
Brake Band Assembly
Pin, Clevis 3/8” Dia. x 1.93”
Spacer
Wheel Hub/Brake Drum Assembly
Key, 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 Master
Rim W/Valve Stem
Tire, 24 x 12-12 Turf Master
Lug Nut, 1/2-20
Nut, Hex Castle
Threaded Plate
Bolt, Hex Head 3/8-16 x 1-1/2”
Plate Weldment, Motor Backing
Actuator Switch
Bolt, 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”
Switch
Bolt, Hex Head 3/8-16 x 1-1/4” Grade 8
Bolt, Carriage 5/16-18 x 1-1/2”
Knob
19
R
HYDRAULIC SYSTEM - KOHLER LP
D
D
D
E
F
C
I
H
G
G
F
E
A
A
B
C
DUMP
VALVE
B
2009 STT-25CH-LP HS.eps
I
H
39
23
24
26
40
34
25
35
21
31
33
9
30
30
11
12
13
7
4
4
3
44 45 17
5
4
4
5
42
34
25
35
18
8
20
19
6
22
41
27
28
29
46
38
2
2
36
10
37
7
7
22
5
4
4
43 (2)
43 (2)
7
5
1
14
15
16
32
Section 8
20
R
Section 8
HYDRAULIC SYSTEM - KOHLER LP
Ref.
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
Part No. Description
04110-01
48136-13
04001-03
48811
48136-07
481301-03
482266-01
48471-02
482606
423524
423525
04043-04
04021-09
482696
04001-32
04021-09
482695
481793
04001-09
04019-03
48758
482483
04021-08
481164
481507
48603-02
461451
482572
482571
48136-13
48811
04010-10
48571-02
422694
48136-05
48350-02
48938-02
482505
04001-08
04060-09
482574
482573
423513
U-Nut 1/4-20
Hose 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 - 1/4” NPT x 3/8” Hose
Elbow, 90 Degree - 9/16” O-Ring x 3/8”
Hose
Oil Filter Base
Hose Assembly, 1/2” ID (Tank to Filter
Base)
Mounting Bracket - LH, Oil Cooler
Mounting Bracket - RH, Oil Cooler
Flatwasher, 3/8” (.391 x .938 x .105”)
Grade 8
Nut, Hex Elastic Stop 3/8-16
Pump, Right Hand
Bolt, Hex Head, 3/8-16 x 1-1/4”
Nut, Hex, Elastic Stop 3/8-16
Pump, Left Hand
Block, Pump Control
Bolt, Hex Head 5/16-18 x 1.0” Zinc
Nut, Serrated Flange 5/16-18
Oil Filter
Tee, 3/4” O-Ring x JIC x 1/2” Hose
Nut, Hex Elastic Stop 1/4-20
Cap, Hydraulic Tank
Insert, Filler Neck
O-Ring
Oil Reservoir Assembly (incl. 24, 27, 39)
Elbow, 90 Degree .38” Hose
Bushing, .56” Dia. Viton
Hose Clamp, 0.69” Dia.
Hose, 3/8” ID, Pushlock (order by inch)
Screw, Phillips Head, 1/4-20 x 2"
Cap
Clamp Plate, Pump Control
Clamp, Hose
Elbow, 90 Degree, 1/2” x 1/2”
Bushing, 7/8”-14 JIC x 3/4”-16 O-Ring
Cooler, Oil
Bolt, Hex Head 5/16-18 x 3/4”
Roll Pin, Spring 3/16 x 3/4”
Elbow, 90 Degree
Bushing, .78” Dia. Viton
Strap, Hydraulic Tank
Ref.
No.
41
42
43
44
45
46
Part No. Description
423485
481611
48572-04
04001-59
04030-02
04001-01
Support Bracket, Hydraulic Tank
Hose Assembly, Pump
Union, 3/4”-16 JIC x 3/4”-16 O-Ring
Bolt, Hex Head, 1/4-20 x 1-1/4”
Lockwasher, 1/4” Spring
Bolt, Hex Head 1/4-20 x 3/4"
21
R
Section 8
A
A
B
B
C
C
D
D
TO VAPORIZER
FROM VAPORIZER
TO CARBURETO R
1
1
3
3
2
11
21
2
5
5
2
4
23
24
25
10
10
7
2
7
8
9
6
6
3
3
3
3
6
17
17
15
16
18
19
20
12
13
22
14
5
5
5
5
5
5
5
5
LP Tank Bracket Kit
LP SYSTEM - KOHLER
22
R
Section 8
LP SYSTEM - KOHLER
Ref.
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Part No. Description
04001-12
04001-18
04001-19
04019-03
04019-04
04041-07
422386
425254
425261
425262
425263
483888
483889-01
483903
483909
483910
483911
483912
484000
483899
484033
484034
**
**
**
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 5/16-18
Nut, Serrated Flange 3/8-16
Flatwasher, 3/8-.391 x .938 x .105
Brace
Mounting Bracket, Tank Support LH
Support, LP Tank
Brace, LP Tank Mounting Bracket
Mounting Bracket, Tank Support RH
LP Quick Coupler
Adapter Fitting, 9/16-18 SAE x 1/4" Pipe
Mounting Bracket Kit (incl. # 15, 16, 17, 18, 19)
Mounting Bracket, LP Tank Front
Mounting Bracket, LP Tank Rear
Handle, LP Tank Mounting Bracket
Bracket, LP Tank Locator
Bolt, Hex Head 1/4-20 x 3/8" Locking
LP Tank
LP Fuel Line, 10"
LP Fuel Line, 32"
Hose
Hose
LP Regulator
** Available through the individual engine manufacturer.
23
R
Section 8
OR
OR
PORT "A"
SIDE
PORT "B"
SIDE
Overhaul Seal Kit
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
17
18
19
20
20
21
21
22
23
24
25
26
27
28
29
30
BDP-16A HYDRAULIC PUMP ASSEMBLY
24
R
Section 8
BDP-16A HYDRAULIC PUMP ASSEMBLY
Ref.
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Part No. Description
HG70740
HG51455
HG70735
HG51462
HG51436
HG2000015
HG2000014
HG2000025
HG2000024
HG2000032
HG2000023
HG2000038
HG51092
HG70581
HG70738
HG70739
HG50641
HG51437
HG9005110-7500
HG70743
HG70742
HG9005200-7500
HG70736
HG2513030
HG9004100-1430
HG50406
HG50173
HG2510071
HG51457
HG70402
Overhaul Seal Kit
Valve Plate
Cylinder Block Kit - 16cc
Thrust Ball Bearing Assembly
Variable Swashplate
Slot Guide
Trunnion Arm
Block Spring
Block Thrust Washer
Shaft Ball Bearing
Spacer
Retaining Ring
Seal
Kit, Pump Shaft
Housing Kit
Trunnion Seal Kit
Pin
O-Ring
Straight Thread Plug
Shock Valve Kit (.031 Orifice)
Shock Valve Kit (.024 Orifice)
Straight Thread Plug
End Cap Kit
Bypass Valve Kit
O-Ring
Gerotor 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
25
R
SCAG
POWER EQUIPMENT
21
1
3
4
5
6
12
13
17
STT-25CP-LP 2009 ES
10
10
11
17
18
15
14
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
31
32
30
TO
MAIN HARNESS
TO
ENGINE
33
Section 8
ELECTRICAL SYSTEM - KOHLER LP
26
R
Section 8
ELECTRICAL SYSTEM - KOHLER LP
Ref.
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
Part No. Description
483623
48298
483366
462069
48017-04
48017-03
461916
48798
483957
483013
04031-01
04020-01
481755
451879
04030-02
04001-01
04110-01
481544
04010-01
481638
04001-44
48029-22
04020-02
48029-11
48030-09
48136-05
483599
04002-12
04031-03
483642
482588
483629
483571
484078
Wire Harness, STT Air-Cooled
Fuse, 20 AMP
Key, Ignition
Key Assembly w/Fob
Nut, Hex 5/8-32
Lockwasher, 5/8” Internal
Instrument Panel, Top w/Decals
Key Switch
Switch, PTO
Relay
Lockwasher, #10 External Tooth
Nut, Hex #10-32
Ammeter
Base, Instrument Panel
Lockwasher, 1/4”
Bolt, Hex Head 1/4-20 x 3/4”
U-Nut, 1/4-20
Throttle And Choke Controls (Kohler)
Screw, Phillips Washer Head #10-32 x 1/2”
Switch, Interlock-Seat
Bolt, Hex Head 1/4-20 x 1/2”
Cable, Battery - Red
Nut, Hex 1/4-20
Cable, Battery - Black
Clamp, Cable 1/2” ID.
Clamp, Cable 3/4” ID.
Electronic Module
Bolt, Hex Head M8-1.25 x 20mm
Lockwasher, 5/16” External Tooth
Double Fuse Assembly, Sealed (Incl. items 2, 42, 43, 44)
Clip, Wire
Fuse Holder
Cover, Sealed Double
Wire Harness Adapter, Kohler
.
27
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REPLACEMENT DECALS AND INFORMATION PLATES
1
2
5
3
6
4
9
16
18
8
2011 STT-25CH-LP Decals 1
WARNING
INSTALL BELT COVER BEFORE
OPERATING MACHINE
READ OPERATOR'S MANUAL
481568
FORWARD
REVERSE
F
R
13
Hea
vy-
Duty
Co mmerc
ial
481971
12
17
10
11
15
14
483762
CHOKE
SLOWFAST
482983
PUSH IN TO DISENGAGE
MOWER DECK
PULL OUT TO ENGAGE
WARNING
Operation of this equipment
may create sparks that can
start res around dry
vegetation. A spark
arrestor may be required.
The operator should contact
local re agencies for laws
or regulations relating to
re prevention requirements.
483900
__________ __________ __________ __________
__________ __________ __________ __________
__________ __________ __________ __________
__________ __________ __________ __________
California Only
Section 8
28
R
Section 8
481569
R
20
2011 STT-CHLP Decals Page2
22
7
26
19
25
21
R
483727
23
24
484070
PROPANE
481663
481664
48404
ISO 9001 Registered
REPLACEMENT DECALS AND INFORMATION PLATES
Ref.
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Part No. Description
483407
483406
483044
483900
483200
483201
481568
481663
481971
483402
484293
483425
482515
482983
483633
483158
482565
482493
484321
484320
482577
Decal, Danger-Spinning Blades
Decal, Warning-Rotating Blades
Decal, Patents
Decal, Warning Spark Arrestor
Decal, 52” Velocity Plus
Decal, 61” Velocity Plus
Decal, Traction Control
Decal, Stripes-LH
Decal, Heavy Duty Commercial
Decal, Belt Cover
Decal, Start / Drive
Decal, ROPS
Decal, Instrument Panel - Upper
Decal, Instrument Panel - Lower
Decal, Seat Replacement
Decal, ROPS
Decal, Cutting Height - Lower
Decal, Cutting Height - Upper
Decal, Start/Drive Procedure
Decal, STT Adjustments
Decal, Turf Tiger
Ref.
No.
21
22
23
24
25
26
**
**
Part No. Description
483405
483229
483727
48404
484070
481664
461982
01411
Decal, Warning
Decal, Turf Tiger
Decal, Scag Logo
Decal, Metalcraft-Made In USA
Decal, Turf Tiger Propane
Decal, Stripes-RH
Spanish Decal Kit, STT
DVD Video, Tips for Safe Operation of
Your Scag Zero-Turn Mower (not shown)
29
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ELECTRICAL SCHEMATIC - KOHLER LP
Kohler STT Schematic
Serial No. 7700001 & Higher
RELAY
MODULE
PLUG
POS
AMPMETER
NEG
AMPMETER
PTO
SWITCH
KEY
SWITCH
ENGINE
CLUTCH
NEG
POS
HOURMETER
GROUND
R.H. NEUTRAL
SWITCH
20 AMP FUSE
20 AMP FUSE
BRAKE
INTERLOCK
SWITCH
SEAT
SWITCH
L.H. NEUTRAL
SWITCH
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
ORANGE
BLUE
YELLOW
GRN W/WHT STRIPE
RED
WHITE
RED W/WHT STRIPE
RED
RED
RED
RED W/WHT STRIPE
BLACK
BLUE
RED
BLACK
BLACK
BLACK
DIODE
(600V 2A)
Section 8
30
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