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Ref. 

No.

Part No.

Description

1

918-04892

Hydro Transmission

2

647-04200

Hydro Handle Control Assembly

3

647-04202-0637

Hydro Pedal Assembly

4

710-1266

Hex Screw, 5/16-18 x 3.5

5

710-0227

Screw, #8-18:0.500

6

710-0347

Hex Screw, 3/8-16:1.75

7

710-0224

Screw, #10-16:0.500

8

710-04484

Screw, 5/16-18:.750

9

710-0514

Hex Screw, 3/8-16:1.00

10

710-0604A

Screw, 5/16-18:0.625

11

710-0809

Screw, 1/4-20:1.250

12

710-1026

Screw, 1/4-20 x 1.75

13

710-3008

Hex Screw, 5/16-18:.75

14

710-3103

Screw, 5/16-18 x 2.00

15

711-04448

Ferrule, 5/16-24 X .312 DIA.

16

912-0346

Jamlock Nut, 1/2-20

17

712-04063

Flangelock Nut, 5/16-18

18

712-04065

Flangelock Nut, 3/8-16

19

728-04021

Rivet

20

17962

Plate Switch

21

714-04040

Cotter Pin, Bow Tie

22

716-0106A

E Rign, .625 DIA

23

720-0311

Handle Grip

24

725-04249

Hydro Spring Switch

25

726-0214

Push Cap, 5/8

26

926-0320

Insulator Plate Nut

27

731-05299A

Sleeve, .765 ID X 1.500 LG

28

731-06098

Hydro Fan

29

732-04225

Torsion Spring

30

732-04229

Extension Spring, .75 DIA. X 6.02

31

732-0716D

Extension Spring, .59 OD X 4.00 LG

32

732-0729

Wire Ring

Ref. 

No.

Part No.

Description

33

732-0963

Extension Spring, .50 DIA X 6.37 LG

34

735-0239

Foot Pad, 4.0

35

736-04263

Lock Washer, TRANS HYDRO

36

736-0607

Lock Washer, 5/16 EXT TOOTH

37

925-04039

Switch Interlock

38

736-3010

Flat Washer, .407X.812X.135:HT

39

750-04456

Spacer, .260 x .372 x 1.420

40

738-04430

Shldr Spacer, 1.375 ID X .380 x 1.54

41

736-0430

Flat Washer, .350 x 1.59 x .062

42

941-0225

Hex Flange Bearing

43

747-04283A

Declutching Rod

44

747-05242

Brake Rod

45

747-04296A

Hydro Control Handle

46

747-05245

Hydro Bypass Rod

47

747-04407A

Hydro Control Rod

48

750-0566A

Spacer, .260 x .375 x 1.030 LG

49

750-0802

Spacer, .640 ID X .76 OD X 2.63

50

954-04252

V Belt, 4L SEC X 84.17

51

756-04224

Flat Idler Pulley2.75 OD

52

756-04308

Input Pulley

53

783-04536B-0637

Support Pedal Bracket

54

783-04570B-0637

Idler Arm

55

783-06551

Torque Bracket

56

783-04585A

Handle Bracket

57

783-06558-0637

Belt Support Bracket

58

948-0334

Spacer, T-Axle

59

634-0104-0911

Wheel, 20 x 8 x 8 - Grey

634-0104-0941

Wheel, 20 x 8 x 8 - Yellow

60

710-0627

Hex Screw, 5/16-24 x .750

61

736-0242

Bell Washer, .340 x .872 x .060

725-04990

Harness, Jmpr, Hydro

NOTE: 

Tractor features vary by model. NOT all parts listed above and pictured on the previous page are standard equipment.

13

Transmission

Summary of Contents for 790 SERIES

Page 1: ...MTD LLC P O BOX 361131 CLEVELAND OHIO 44136 0019 Printed In USA Illustrated Parts Manual Hydrostatic Lawn Tractor Model Series 790 Form No 769 05403 February 8 2010...

Page 2: ...1 5 Style Hood 14 5 17 40 16 31 2 13 38 37 36 27 33 8 1 29 34 35 17 39 28 24 25 21 30 19 23 18 22 1 12 10 11 3 3 4 2 6 7 15 9 20 28 32 29 32 26 A A 29 32 4...

Page 3: ...No Description 23 747 04430 Control Rod Speed Selector 24 750 04465 Flang Spacer 390 x 671 x 1 095 25 783 04862 Transmission Speed Latch 26 683 04448 0637 Battery Rod 27 710 0599 Hex Screw Washer 1 4...

Page 4: ...K Style Troy Bilt Hood 15 14 9 6 7 11 12 5 1 1 37 2 38 16 48 4 10 1 30 24 25 22 18 19 21 23 28 33 17 7 27 32 1 28 27 13 41 40 3 20 36 44 46 5 47 43 45 42 26 29 8 31 39 35 34 1 17 A A 6...

Page 5: ...oke Control Cable Ref No Part No Description 27 710 0599 Hex Screw Washer 1 4 20 x 500 28 710 0604A Screw 5 16 18 x 625 29 710 0895 Hex Screw 1 4 15 x 750 30 712 04063 Flange lock Nut 5 16 18 31 731 0...

Page 6: ...25 10 24 23 21 22 20 5 2 6 4 16 11 12 14 14 17 18 19 7 15 13 13 10 8 3 1 9 26 9 27 8 Seat and Fender...

Page 7: ...060 14 938 0296 Shoulder Screw 5 16 18 x 437 x 268 15 783 0209D Lift Seat Bracket 16 783 04081C 0637 Pivot Seat Manual Adjust Bracket 17 726 04072A Ratchet Clip 250 x 500 18 735 04047 Foot Pad LH 19 7...

Page 8: ...A A 37 14 38 11 3 15 1 16 8 13 8 22 21 17 6 10 27 4 18 8 2 11 8 7 20 5 19 29 39 40 23 25 25 26 20 12 30 36 20 36 40 28 31 33 34 29 24 35 9 28 32 10 Front End Steering...

Page 9: ...42 Deck 938 04014A 0637 Axle Assembly LH 46 Deck Ref No Part No Description 24 638 04008P Axle Assmbly RH 38 42 Deck 938 04013 Axle Assembly RH 46 Deck 25 719 04177A Pivot Bar Cast 683 0128B 0637 Piv...

Page 10: ...afely A substitute non OEM V belt can be dangerous by not disengaging completely 4 15 47 59 6 14 31 7 54 21 43 9 50 21 29 6 44 46 58 17 36 27 17 38 18 18 18 17 8 13 56 42 22 19 20 37 40 11 60 61 48 51...

Page 11: ...Ref No Part No Description 33 732 0963 Extension Spring 50 DIA X 6 37 LG 34 735 0239 Foot Pad 4 0 35 736 04263 Lock Washer TRANS HYDRO 36 736 0607 Lock Washer 5 16 EXT TOOTH 37 925 04039 Switch Inter...

Page 12: ...5 22 20 17 16 3 2 33 50 50 11 45 33 4 39 46 Deck Lift 11 1 22 19 20 23 15 49 18 43 42 8 30 26 49 9 5 34 41 21 2 14 39 47 39 14 2 3 44 12 22 25 17 20 28 1 18 18 53 24 40 36 33 3 11 11 10 6 7 31 33 35 3...

Page 13: ...der Screw 10 32 x 500 27 783 04548C 0637 Seat Bracket Frame Ref No Part No Description 28 783 04637 0637 Bracket Runing Board 29 783 04753 0637 Frame Support Bracket 30 783 04869A 0637 Bracket Battery...

Page 14: ...8 47 9 28 55 9 16 48 54 4 10 46 23 12 34 35 30 45 25 37 16 13 16 52 11 16 48 1 8 32 54 40 28 16 3 7 36 42 29 6 53 9 2 20 14 32 17 39 19 31 15 16 27 8 6 57 22 12 26 38 21 43 49 51 1 60 61 58 50 59 33 6...

Page 15: ...y 28 936 0176 Wash Flat 265 X 938 X 120 29 936 0344 Wash Flat 385 X 1 0 X 030 30 736 0187 Wash Flat 64 X 1 24 X 06 Ht 31 736 0225 Wash Lock 5 8 Int Tooth Ref Part Number Description 32 736 0262 Wash F...

Page 16: ...2 17 17 33 27 53 47 13 5 54 46 18 36 19 42 8 38 12 17 55 7 11 32 45 32 17 6 59 8 31 41 2 58 37 23 26 48 50 3 43 29 57 56 21 44 34 20 10 35 60 55 52 24 39 65 66 6 61 14 17 13 16 15 51 1 28 64 30 40 62...

Page 17: ...992 ID x 1 17 OD 29 734 04155 Wheel Deck 5 0 Dia Ball 30 941 0919 Bearing Ball 787 x 1 85 x 551 31 936 0119 Washer Lock 5 16 Regular Duty 32 936 0176 Washer Flat 265 x 938 x 120 33 783 06074A Bracket...

Page 18: ...Screw 1 4 20 x 750 5 710 1314A Socket Screw 5 16 18 x 750 6 712 0271 Sems Nut 1 4 20 7 BS 692236 Exhaust Gasket 10 HP Briggs 8 725 0157 Cable Tie 9 726 0205 Clamp Hose 490 diameter 10 728 04000 Rivet...

Page 19: ...0 4 710 0599 Screw 1 4 20 x 500 5 710 0642 Screw 1 4 20 x 750 6 710 1314A Socket Screw 5 16 18 x 750 7 725 0157 Cable Tie 8 726 0205 Clamp Hose 490 diameter 9 728 04000 Rivet 188 x 300 10 751 3141 14...

Page 20: ...22 Wiring Harness Schematic 725 04479D...

Page 21: ...23 Wiring Harness Schematic 725 04432D...

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