Cub Cadet GT1554VT Setup guide

CUB CADET LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019
Printed In USA
Il l u s t r a t e d Pa r t s Ma n u a l
Hydrostatic Garden Tractor — Model GT1554
Form No. 769-04865
(February 17, 2009)

2
SERIES GT1554 HYDROSTATIC GARDEN TRACTOR
TABLE OF CONTENTS
DESCRIPTION PAGE
Axle, Front .......................................................................................12
Battery ...............................................................................................6
Deck, 54-inch .................................................................................20
Dash Panel ......................................................................................6
Drive System .................................................................................10
Electrical Schematic ....................................................................22
Engine Accessories .....................................................................16
Fender ..............................................................................................8
Frame & Electric PTO ...................................................................14
Fuel Tank ..........................................................................................8
Hood & Grille ..................................................................................4
Lift Linkage ....................................................................................23
Label Map .......................................................................................39
Pedal Assembly.............................................................................19
PTO ....................................................................................................14
Seat ...................................................................................................18
Steering ...........................................................................................12
Transmission, Hydrostatic ........................................................24
Wheels, Front & Rear ...................................................................3
DESCRIPTION PAGE
Briggs & Stratton 44M777-721-B1
Illustrated Parts .............................................................................29
Parts Table.......................................................................................36
NOTE: For painted parts, please refer to the list of color codes below. Please add the applicable color
code, wherever needed, to the part number to order a replacement part. For instance, if a part, num-
bered 700-xxxx, is painted Cub Yellow, the part number to order would be 700-xxxx-0716.
Cub Yellow: 4021
Cub Beige: 0499
Powder Black: 0637

3
Wheel Assembly
1
2
3
4
5
6
7
Ref. Part Number Description
1734-04147-0901 Tire, 23 x 10.5 x 12 Square Shoulder
2634-04238-0499 Rim Assembly, 12.0 x 7.0 (4-Lug)
934-0255 Valve, Tubeless Air (not shown)
3712-3050 Lug Nut, 7/16-14
4734-04148-0901 Tire, 16 x 7.5 x 8 Square Shoulder
5934-04082-0499 Rim Assembly, 8 x 5.38 (Includes Flange Bearings and Valve)
741-0990B Bearing, Flange .760 ID w/ Grease Ftg.
741-0516B Bearing, Flange .760 x 1.00 x 1.20 Lg.
6934-0255 Valve, Tubeless Air
7731-05674 Hub Cap

4
Hood & Grille
67
4
1
3
2
5
10
13
9
12
10
19
14
9
11
9
8
14
18
9
16
15
17

5
Hood & Grille
Ref. Part Number Description
1N/A Socket Assembly
—925-0963 Miniature Lamp, 12V
—925-1649 Lamp Socket
2931-04567A Hood Cub 1000
3931-04577 Lens, Cub 1000 Headlight
4777D09701 Label LH, Cub 1000 Heat
5777D09702 Label RH, Cub 1000 Heat
6777X41562 Label, Cub 1000 Right Lens
7777X41563 Label, Cub 1000 Left Lens
8683-04238-0637 Bumper Assembly
9710-04484 Screw, Hex Washer, 5/16-18 x .750
10 710-0895 Screw, Hex Washer, 1/4-15 x .750
11 712-04065 Nut, Flange Lock, 3/8-16
12 725-0157 Tie, Cable
13 731-04569A Plenum, Hood
14 738-0143 Bolt, Shoulder, 3/8-16 x .496 x .336
15 738-04091A Screw, Shoulder, 5/16-18 x .43 x .29
16 783-04606C-0637 Bracket, Hood Pivot
17 783-05326-0637 Bracket, Pivot Bar
18 783-05417-0637 Bracket, Pivot Support LH
19 783-05418-0637 Bracket, Pivot Support RH

6
Dash Assembly
15
9
8
13
2
14
21
5
5
10
7
6
22
18
11
12
20
19
3
7
4
5
24
26 23
16
25
1
17

7
Dash Assembly
Ref. Part Number Description
1683-04099-0637 Frame Assembly, Lower
2710-0192 Screw, Machine, #10-24 x .375
3710-0599 Screw, Hex Washer, 1/4-20 x .500
4710-0607 Screw, Hex Washer, 5/16-18 x .500
5710-0653 Screw, Hex Washer, 1/4-20 x .375
6710-0895 Screw, Hex Washer, 1/4-15 x .750
7710 -1611B Screw, 5/16-18 x .750
8710 -3217 Screw, Machine, #8-32 x .375
9712-0142 Nut, Hex, #8-32
10 914-0104 Pin, Cotter, .072 x 1.13
11 731-04293A Lever, Brake
12 731-04294A Lever, Cruise
13 731-05659 Bushing, Shift
14 931-06553 Dash, Cub
15 931-3161A Knob, Throttle
16 746-0616A Choke Control
17 746-1087 Cable, Throttle
18 747-1323A Rod, .250 x 4.55
19 783-04285F-0637 Support, Dash, RH
20 783-04323F-0637 Support, Dash, LH
21 783-05453A-0637 Bracket, Dash Support
22 783-1499 -0637 Bracket
23 925-04227B Switch, Key Module
24 725-04258 Switch, PTO
25 925-04022B Meter, Hour Indicator
26 925-1745A Key
NS 751-0658E Tank, Fuel
NS 751-0603A Cap, Fuel
NS 710-04484 Screw, Hex Washer, 5/16-18 x .750

8
Fender
12
11
7
9
14
1
8
5
5
8
10
4
3
3
6
1
13
15
2

9
Fender
Ref. Part Number Description
1710-0451 Bolt, Carriage, 5/16-18 x .750
2710-0599 Screw, Hex Washer, 1/4-20 x .500
3710-04484 Screw, Hex Washer, 5/16-18 x .750
4710-0895 Screw, Hex Washer, 1/4-15 x .750
5712-04063 Nut, Flange Lock, 5/16-18
6731-06700 Cover, Fender RH
7731-06676 Cover, Fender LH
8736-3078 Washer, Flat, .344 x 1.0 x .063
9783-06250-4021 Fender, A-Style
10 783-0677B-0637 Bracket, Lift Adjust
11 731-06584 Door, Fender Cover
12 747-05039 Pin, Pod Door
13 726-3046 Clip, Ratchet
14 735-0697A Pad, Foot LH
15 735-0698B Pad, Foot RH

10
Drive System
1
13
31
2
7
9
4
24
3
20
8
18
22
19
30
33
32
35
26
27
6
21
21
21
21
16
16
45
23
25
16
5
40
34
41
43
15
14
36
38
11
12
39
42
44
42 10
28
29
17
37

11
Drive System
Ref. Part Number Description
1918-04317 Hub Assembly
2918-04468 Transmission, Hydrostatic
3629-0949B Wire Harness, Reverse
4710-0189 Screw, Hex Cap, 5/16-18 x 3.00 Gr5
5710-0216 Screw, Hex Cap, 3/8-16 x .75 Gr5
6710-0227 Screw, Hex Wash Hd Tapp, #8-18 x .5
7710-04484 Screw, Hex Cap, 5/16-18 x .750
8710-0520 Screw, Hex Cap, 3/8-16 x 1.50 Gr5
9710-0599 Screw, Self-Tapp, 1/4-20 x .5
10 710-1008 Sems Screw, 3/8-16 x 1.875
11 710 -3 011 Hex Cap Screw, 3/8-16 x 2.25, Gr5
12 710-3103 Screw, Hex Cap, 5/16-18 x 2.00
13 710 -3119 Screw, Hex Cap Lock, 3/8-16 x .75
14 911- 0 832 Ferrule, 3/8-24 x .375 Dia
15 912- 0240 Jam Nut, 7/16-20
16 712-04063 Nut, Flange Insert Lock, 5/16-18 Gr5
17 712-04065 Nut, Flange Insert Lock, 3/8-16 GrF
18 912- 0431 Nut, Flange Insert Lock, 3/8-16 GrF
19 912-3017 Nut, Hex, 3/8-16, GR5
20 914-0104 Pin, Cotter, .072 Dia. x 1.13
21 914 - 0111 Pin, Cotter, 3/32, 1.0
22 725-0157 Cable, Tie, 3/16 x .05 x 7.4
23 725-1644 Switch, Spring, Short
Ref. Part Number Description
24 926 - 0154 Tie, Cable, Push Mount 7.5
25 926-0320 Plate, Insulator Nut
26 732-04323B Spring, Extension, .77 Dia x 3.7 Lg
27 732-04528 Spring, Extension, .50 OD x 5.00 Lg
28 732-0716D Spring, Extension, .59 OD x 4.00 Lg
29 732-3118 Spring, Extension, 3/8 OD x 1.44 Lg
30 936-0169 Washer, Lock, 3/8 , Regular Duty
31 936-0227 Washer, Flat, .390 x 1.50 x .134
32 736-0258 Washer, Flat, .385 x 1.0 x .135
33 936-0300 Washer, Flat, .406 x .875 x .059
34 783-0745-0637 Bracket, Speed Control
35 738-0372B Spacer, Shoulder, 1.00 x .38 x .38
36 747-04666 Rod, Hydro Control
37 747-04838A Rod, Hydro Disengage
38 747-04873 Rod, Brake
39 750-04776 Spacer, .380 x .625 x .265
40 954-0461 Belt, V-Type
41 756-04224 Pulley, Idler, Flat 2.75 OD
42 756-04325 Pulley, Idler, Flat 3.06 OD
43 783-04442-0637 Bracket, Idler
44 783-05443-0637 Bracket, Torque
45 783- 05841 Bracket, Actuator

12
22
26 12
17
19
1
17
7
28
21
29
24
30
28
9
6
4
18
11
14
23
5
27
10
8
7
2
16
20
3
13
15
25
Steering

13
Steering
Ref. Part Number Description
1710-04095 Hex Cap Screw, 3/8-16, 1.00
2710- 0514 Hex Cap Screw, 3/8-16, 1.00, Gr5, Std
3710-0650 Self-tapping Screw, 5/16-18 x .75
4711-1408 Link, Drag, RH
5711-1409A Link, Drag, LH
6912- 0214 Nut, Hex, 3/8-24, Gr5
7712-04065 Nut, Nylon Lock, 3/8-16
8712-0459 Nut, Flange Lock, 7/16-20
9712-3004A Nut, Flange Lock, 5/16-18
10 717-1550F Gear, Steering, 11/90 Ratio
11 717-1554 Gear, Pinion, Steering
12 923-0448A Ball Joint, 7/16-20
13 936-3004 Washer, Flat, .406 x .875 x .105
14 736-3084 Washer, Flat, .510 x 1.120 x .060
15 731-04532B Cover, Steering Wheel
16 738-04262 Shaft, Steering, .625 OD x 25.00 Lg
17 738- 04154 Spacer, Shoulder, 1.00 x .38 x .38
18 941- 0475 Bushing, Plastic, .380 ID
19 741-04237A Bearing, Hex Flange, 5/8
20 631-04008A Wheel, Steering, Three Spoke
21 714-0162 Pin, Cotter, 5/32, 1.25
22 719- 04177A Axle, Pivot Bar, Cast
23 726-0341 Push Cap, .75
24 736-04228A Washer, Flat, .781 x 1.590
25 748- 04068 Spacer, .71 x .125 x .56
26 738-04128 Bolt, Shoulder, 3/8-16 x .500 x 2.38
27 712-04065 Nut, Jam, 3/8-16, Grf.
28 638-04003AP Axle Ass’y, LH .750 Dia.
938-04004A Axle Ass’y, RH .750 Dia.
29 634-04088A Wheel Assembly (See page 3 for breakdown)
30 731-05674 Hub Cap

14
Frame & Electric PTO Clutch
9
2
2
8
8
3
3
24
16
1
3
10
10
12
3
3
4
7
20
25
15
18
17
19
21
26
4
45
6
713
14
11
3
22
23
Deck Up-Stop & Clutch Bracket

15
Frame & Electric PTO Clutch
Ref. Part Number Description
1683-04173B-0637 Frame Assembly, Lower
2710-0520 Hex Screw 3/8-16 x 1.25
3710-04484 Screw, Self-tapping, 5/16-18, 0.75
4710-0607 Screw, Hex Wash. Tapp, 5/16-18 x .5
5710-0642 Screw, Hex Wash., 1/4-20 x 0.750
6712-04064 Nut, Nylon Lock, 1/4-20
7712-04065 Nut, Nylon Lock, 3/8-16
8732-04561 Spring, Compression, 1.71 x .3735 x 2.38
9936-0222 Washer, Lock, Ext. 1/4
10 738-04058 Shoulder Spacer
11 783-06089-0637 Bracket, Frame, Seat
12 783-04811C-0637 Frame, Upper
13 783-05005-0637 Support Plate
14 783-0693-0637 Axle Bracket
15 710-04379A Screw, Hex Cap , 7/16-20 x 3.5 GR5
16 710 -3 011 Screw, 3/8-16 x 2.25 GR5
17 917-1774C Clutch, PTO
18 936 - 0171 Washer, Lock, 7/16, Regular Duty
19 736-0277 Washer, Flat, 1.031 x 1.62 x .095
20 748- 0415B Spacer, 3/8 x 1.54
21 756-0978B Electric PTO Engine Pulley
22 783-04419B-0637 Clutch Bracket
23 783-04467-0637 Deck Up-stop Bracket
24 910-0224 Screw, #10 - 16, x .500
25 17962 Switch Mounting Plate
26 925-04039 Interlock Switch

16
12
16
7
6
9
4
14
11
15
5
8
2
13
3
10
1
Engine Accessories

17
Engine Accessories
Ref. Part Number Description
1683-04549-0637 Muer Assembly Shield
2710-0227 AB Screw #8-18 x 0.5
3710-04683 TT Screw 3/8-16 x 1.00
4710-0642 TT Screw 1/4-20 x 0.750
5710 -1314A Screw, 5/16-18 x .750
6712-0271 Sems Nut, 1/4-20
7751-3141-14 OIl Drain Extension Hose
8721-0460 Exhaust Gasket
9725-0157 Cable Tie
10 726-0205 Hose Clamp
11 728-04000 Pop Rivets, .188 x .300
12 751-10542 Twin Inlet Muer
13 751-0564B Muer Deector
14 751-10349-28 Fuel Line Hose
15 751-10353 Long Muer Deector
16 951-10517A Oil Drain Valve

18
Seat
2
3
1
11
10
5
4
13
65
10
12
9
8
14
7
Ref. Part Number Description
1710-0262 Screw, 5/16-18 x .750
2757-04073 Seat Arm
3757-04092 Seat
4710-04482 Screw, Hex Flange, 3/8-16 x .875
5710-04484 Screw, Hex Washer, 5/16-18 x .750
6712-3004A Nut, Flange Lock, 5/16-18
7725-0157 Tie, Cable
8732-04561 Spring, Comp., 1.71 x 3.735 x .238
9732-04563 Spring, Comp., .68 x 1.065 x .055
10 938-0296 Screw, Shldr., 5/16-18 x .437 x .268
11 783-06049-4021 Bracket, Seat Moun
12 783-06050 Lever, Seat Adjust
13 783-06088-4021 Bracket, Seat Pivot
14 783-06448 Clip, Ret. Switch

19
1
21
24
5
22
27
20
10
78
17
11
13
4
14
8
8
12 18
8
2
9
20
16
16
26
21
6
6
23
19
15
4
9
3
25
Ref. Part Number Description
1647-0049A-0637 Control Assembly, Hydro
2647-04100-0637 Control Assembly, Brake
3710-04484 Screw, Self-tapping, 5/16-18, 0.75
4710-1260A Screw, Self-tapping, 5/16-18, 0.75
5711- 0 4159 B Pin, 3/8-16, 3/8 x 2.68
6712-04065 Nut, Nylon Lock, 3/8-16
7712-3004A Nut, Flange Lock, 5/16-18, Gr5
8914-0104 Pin, Cotter, .072 Dia. x 1.13 Lg
9914 - 0111 Pin, Cotter, 3/32, 1.0
10 719-0584B-0637 Pedal, Hydro Control
11 732-0335 Spring, Compression, .405 x 1.17
12 732-0955 Spring, Extension, .50 OD x 1.41 Lg
13 732-0963 Spring, Extension, .50 Dia x 6.37 Lg
14 735-3049A Pad, Brake, Control
Ref. Part Number Description
15 936 - 0119 Washer, Lock, 5/16
16 736-0187 Washer, Flat .64 x 1.24 x .06
17 736-0262 Washer, Flat, .385 x .870 x .092
18 938-0155 Shoulder, Screw .437
19 938-0380 Shoulder, Screw 3/8-16
20 941- 0225 Bearing, Hex Flange
21 741-3065B Bearing, Hex Flange, .628 ID, Split
22 747-04093A Rod, Control, Brake Lock
23 747-04096 Rod, Control, Cruise
24 747-04641A-0637 Pedal, Brake
25 748- 04039C Latch, Cruise
26 783-04612-0637 Bracket, Support, Steering
27 783-0663E Bracket, Lockout, Hydro
Pedal Assembly

20
54-Inch Mowing Deck
31
32
1
34 2
33
3
45
6
11
10
10
66
25
3
67
15
45
45
52
45
12
43
53
56
63
57 58
59
60
60
33
39
41
10
68
70 71
72
74
71
69
69
69
73
37
13
19
22
7
8
9
10
10
54
55
23
14
18
17
10
30
20
21 29
42
50
10
24 22
24
25
51
61
24
24
28
46
64
38
26
44
27
24
65
24
32
47
62
48
36
35
16
40
49