MTD 12AKD3X, 12ABD2X, 12A-B2X, 12A-A1X, 12A-AOX User Manual

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Illustrated Parts Manual

Self-Propelled Mowers

MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019

Printed In USA

Form No. 769-10299

 

(October 20, 2014)

To The Owner

Thank You

Thank you for purchasing an MTD Lawn Mower. It was carefully engineered to provide excellent performance when properly operated and maintained.

All information in this manual is relative to the most recent product information available at the time of printing. Please be aware that this Illustrated Part’s Manual may cover a range of product specifications for various models.

Components listed and/or illustrated in this manual may not be applicable to all models. We reserve the right to change product specifications, designs and equipment without notice and without incurring obligation.

Throughout this manual, all references to right (RH) and left (LH) are observed from the operating position.

Table of Contents

Model Series 12A-AOX.............................................

4

Model Series 12AKD3X............................................

16

Model Series 12A-A1X..............................................

6

Model Series 12ABD2X............................................

18

Model Series 12A-B2X..............................................

8

Engine Model 5X65RU...........................................

20

Model Series 12AV/GB2X........................................

10

Engine Model 6X65RU...........................................

30

Model Series 12AVC6X............................................

14

 

 

Record Product Information

Model Number

 

 

 

 

 

 

 

 

To ease in ordering replacement parts, please locate the model

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

plate on the equipment and record the information in the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

provided area to the right. You can locate the model plate by

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

looking beneath the seat.

Serial Number

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Painted Parts

When ordering painted service parts, a four digit color suffix must be added to the part number (e.g. 783-XXXXX-0637). Please refer to the table below for current color codes:

0637

Black

 

 

0709

Dark Green (Bolens, Yard-Man)

 

 

0662

Oyster Gray (MTD Gold)

 

 

0638

Red (Yard Machines, Huskee, Troy-Bilt, MTD)

 

 

0691

Black Jack (MTD Gold, MasterCut)

 

 

0674 Yellow (Yard-Man)

0650 Metallic Red (White Outdoor)

0629 Silver Flake (MTD Platinum)

04038 Day Orange (Daedong)

04033 Flint Mica (Troy-Bilt XP)

2

Page Left Blank Intentionally

3

Model Series 12A-AOX

 

44

 

 

 

 

 

 

 

 

 

36

 

 

 

 

 

 

 

 

 

 

 

42

 

 

 

 

 

 

 

 

 

 

43

 

37

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

39

 

 

 

 

 

 

 

 

 

41

 

 

 

 

 

 

 

 

 

 

 

24

 

 

 

40

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

46

6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

25

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

 

 

 

 

 

 

5

 

 

47

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

45

 

 

 

 

 

 

14

 

 

 

 

27

 

7

 

1

 

 

 

 

 

 

 

 

3

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

31

 

 

 

 

 

 

 

 

 

 

 

 

12

 

 

A

 

 

 

13

 

 

 

 

3

 

 

 

 

 

 

 

 

 

 

 

38

52

23

 

15

17

16

 

 

20

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

49

 

A

 

 

48

35

 

 

 

51

21

 

18

 

 

 

 

38

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

30

29

 

 

 

 

 

 

 

 

 

 

50

 

22

 

 

 

 

 

 

 

 

 

 

 

19

 

 

28

 

 

8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

34

 

 

 

 

 

9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

 

 

 

 

 

 

32

 

 

 

11

 

 

 

 

 

 

 

 

 

 

33

 

19

 

 

 

 

 

 

 

 

 

 

 

 

26

 

53

 

 

 

 

 

 

 

 

 

 

53

 

32

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

Ref

Part Number

Description

No.

 

 

 

 

 

1

787-01871B

Deck , 21”

2

941-00019

Bearing Assembly

3

710-04995A

Screw, 5/16-14 x .750

4

712-04222

Nut, Sq., 1/4-20

5

749-04608A

Lower Handle

6

710-04998

Carriage Screw ,5/16-18

7

710-04683B

Screw, 3/8-16 x 1.00

8

687-02539

Blade Adapter

 

687-02538

Balde Adapter, 25mm x 2.66

9

942-0741A

Mulching Blade

10

736-0524B

Blade Bell Support

11

710-1044

Screw, 3/8-24 x 1.50

12

731-07203

Trailing Shield

13

732-04675A

Transmission Wire

14

731-07486

Side Discharge Chute

15

987-02516A

Mulch Plug (Incl. 16-18)

16

732-1014C

Torsion Spring

17

747-0710A

Hinge Pin

18

787-01779

Chute Deflector Bracket

19

720-04130

Adjustment Lever Knob

 

720-04131A

Adjustment Lever Knob (Red)

20

710-05073

Screw, 1/4-20 x .500

21

732-04704

Compression Spring

22

731-07797

Front Cover

23

787-01793

Front Axle Clip

24

712-04064

Nut, Flange Lock, 1/4-20

25

720-04122

Wing Knob, Black

 

720-04124

Wing Knob, Red

26

911-04150

Front Axle Assembly

27

931-04535B

Engine Baffle

28

911-04142A

Rear Axle Assembly, 8”

 

 

 

 

 

Model Series 12A-AOX

 

 

 

 

 

 

Ref

Part Number

Description

No.

 

 

 

 

 

29

917-04801

Spur Gear, 14T - RH

 

917-04802

Spur Gear, 14T - LH

30

710-04531

Screw, 1/4-20 x .390

31

918-04881A

Transmission Assembly

32

712-04217

Flange Lock Nut, 3/8-16

33

734-04581

Front Wheel, 8 x 1.8, Bar, Gray

 

634-05040

Front Wheel, 8 x 2.0, Zag. Black

34

734-04563

Rear Wheel, 8 x 1.8, Bar, Gray

 

634-04659

Rear Wheel, 8 x 2.0, Zag, Black

35

715-04099

Dowel Pin

36

747-05210B

Drive Control

37

749-04680B

Upper Handle, Non-Adjustable

 

749-04681B

Upper Handle, Adjustable

38

710-0895

Screw, 1/4-15 x .750

39

720-0279

Knob

40

725-0157

Cable Tie

41

710-1205

Rope Guide

42

946-1113A

Control Cable

 

946-1114

Control Cable, 50.56

43

946-04728

Drive Cable

44

747-05184D

Blade Control

45

720-05066A

Wing Nut

46

738-04419A

Sldr. Screw, .375 x .126 x 1/4-20

47

931-04486A

Rear Baffle

48

731-07240A

Wheel Dust Cover

49

731-07355

Spring Body

50

738-04502

Shoulder Screw, 1/4-20 x 0.50

51

731-07789

Lower Tray

52

954-04259A

V-Belt

53

731-09507

Hubcap, 8”

 

 

 

5

Model Series 12A-A1X

44

36

42

 

 

 

 

 

 

 

 

43

37

 

 

 

 

 

 

41

39

 

 

 

 

 

 

 

 

 

24

40

 

 

46

6

 

 

 

 

 

 

 

 

25

 

 

 

 

5

18

 

 

 

 

 

 

 

16

47

 

 

 

 

 

3

 

 

 

16

 

 

 

17

 

 

 

 

45

 

 

 

 

4

27

7

 

 

 

 

12

3

38

48

35

30 29 2

15

14

1

3

20 31

13

23

49

21

38 51

50 22

19

28

 

8

 

 

 

 

 

34

 

 

 

 

 

 

 

9

 

32

 

 

10

 

 

 

11

 

 

 

33

19

 

 

 

 

26

 

 

 

 

 

 

32

 

 

6

Ref

Part Number

Description

No.

 

 

 

 

 

1

787-01876B

Deck , 21”

2

941-00019

Bearing Assembly

3

710-04995A

Screw, 5/16-14 x .750

4

712-04222

Nut, Sq., 1/4-20

5

749-04608A

Lower Handle

6

710-04998

Carriage Screw ,5/16-18

7

710-04683B

Screw, 3/8-16 x 1.00

8

687-02539

Blade Adapter

9

942-0741A

Mulching Blade

10

736-0524B

Blade Bell Support

11

710-1044

Screw, 3/8-24 x 1.50

12

731-07203

Trailing Shield

13

732-04675A

Transmission Wire

14

647-04271

Grass Catcher Frame

15

764-04077B

Grass Bag

16

631-04369A

Rear Discharge Door Assembly

17

732-05061A

Torsion Spring - RH

18

732-05062A

Torsion Spring - LH

19

720-04130

Adjustment Lever Knob

20

954-04259A

V-Belt

21

732-04704

Compression Spring

22

731-07797

Front Cover

23

787-01793

Front Axle Clip

24

712-04064

Nut, Flange Lock, 1/4-20

25

720-04122

Wing Knob

26

911-04150

Front Axle Assembly

 

 

Model Series 12A-A1X

 

 

 

 

 

 

Ref

Part Number

Description

No.

 

 

 

 

 

27

931-04535B

Engine Baffle

28

911-04142A

Rear Axle Assembly

29

917-04801

Spur Gear, 14T - RH

 

917-04802

Spur Gear, 14T - LH

30

710-04531

Screw, 1/4-20 x .390

31

918-04881A

Transmission Assembly

32

712-04217

Flange Lock Nut, 3/8-16

33

734-04581

Front Wheel

34

734-04563

Rear Wheel

35

715-04099

Dowel Pin

36

747-05210B

Drive Control

37

749-04680B

Upper Handle

38

710-0895

Screw, 1/4-15 x .750

39

720-0279

Knob

40

725-0157

Cable Tie

41

710-1205

Rope Guide

42

946-1113A

Control Cable

43

946-04728

Drive Cable

44

747-05184D

Blade Control

45

720-05066A

Wing Nut

46

738-04419A

Sldr. Screw, .375 x .126 x 1/4-20

47

747-05183

Pivot Rod

48

731-07240A

Wheel Dust Cover

49

731-07355

Spring Body

50

738-04502

Shoulder Screw, 1/4-20 x 0.50

51

731-07789

Lower Tray

 

 

 

7

 

Model Series 12A-B2X

 

 

 

 

 

 

 

 

44

 

 

 

 

 

 

 

 

 

 

 

 

 

15

 

 

 

 

36

 

 

 

 

 

 

 

 

 

 

42

 

 

 

 

14

 

 

 

 

 

 

 

 

 

 

 

 

 

43

38

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

41

39

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24

 

40

 

 

 

 

 

 

 

46

6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

25

 

 

 

 

 

 

 

 

 

 

5

 

18

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16

 

53

 

 

 

 

 

 

 

40

 

3

 

 

 

 

 

 

 

 

16

 

 

 

 

 

 

 

 

17

 

 

 

 

 

 

 

 

 

45

 

 

 

 

 

 

 

56

 

 

 

27

7

 

1

 

 

 

 

 

 

 

3

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

52

31

 

 

 

 

 

 

 

 

 

 

 

12

 

 

 

 

13

 

 

57

 

3

 

37

 

23

 

 

59

58

20

 

 

 

 

 

 

 

 

 

 

 

 

48

 

 

 

 

 

49

 

 

 

 

 

 

 

 

21

 

 

 

A 47

 

35

 

 

 

 

 

 

 

 

37

51

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

30 29

50

 

22

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

34

28

 

 

8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9

 

 

 

55

32

 

 

 

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

11

 

 

 

 

 

 

 

 

33

 

 

19

 

 

 

 

 

 

 

 

 

 

26

 

 

 

 

 

 

 

 

 

 

 

 

54

32

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8

Ref

Part Number

Description

No.

 

 

 

 

 

1

787-01871B

Deck, 21”

2

941-00019

Bearing Assembly

3

710-04995A

Screw, 5/16-14 x .750

4

712-04222

Nut, Sq., 1/4-20

5

749-04608A

Lower Handle

6

710-04998

Carriage Screw ,5/16-18

7

710-04683B

Screw, 3/8-16 x 1.00

8

687-02538

Blade Adapter

9

942-0741A

Mulching Blade

10

736-0524B

Blade Bell Support

11

710-1044

Screw, 3/8-24 x 1.50

12

731-07203

Trailing Shield

13

732-04675A

Transmission Wire

14

647-04271

Grass Catcher Frame

15

764-04077B

Grass Bag

 

964-04116B

Grass Bag (Yardman)

16

631-04369A

Rear Discharge Door Assembly

 

631-04567A

Door Assembly, International

17

732-05061A

Torsion Spring - RH

18

732-05062A

Torsion Spring - LH

19

720-04130

Adjustment Lever Knob

20

710-05073

Screw, 1/4-20 x .500

21

732-04704

Compression Spring

22

731-07797

Front Cover

23

787-01793

Front Axle Clip

24

712-04064

Nut, Flange Lock, 1/4-20

25

720-04122

Wing Knob

26

911-04150

Front Axle Assembly

27

931-04535B

Engine Baffle

28

911-04144B

Rear Axle Assembly

29

917-04801

Spur Gear, 14T - RH

 

917-04802

Spur Gear, 14T - LH

30

710-04531

Screw, 1/4-20 x .390

31

918-04881A

Transmission Assembly

 

 

 

 

 

Model Series 12A-B2X

 

 

 

 

 

 

Ref

Part Number

Description

No.

 

 

 

 

 

32

712-04217

Flange Lock Nut, 3/8-16

33

734-04581

Front Wheel, 8 x 1.8, Bar, Gray

 

634-05040

Front Wheel, 8 x 2.0, Zag. Black

34

634-04625

Rear Wheel, 11 x 1.75, Bar, Gray

 

634-05062

Rear Wheel, 11 x 2.0, Zag, Black

35

715-04099

Dowel Pin

36

747-05210B

Drive Control

37

710-0895

Screw, 1/4-15 x .750

38

749-04681B

Upper Handle, Adjustable

39

720-0279

Knob

40

725-0157

Cable Tie

41

710-1205

Rope Guide

42

946-1113A

Control Cable, 37.75”

43

946-04728

Drive Cable

44

747-05184D

Blade Control

45

720-05066A

Wing Nut

46

738-04419A

Sldr. Screw, .375 x .126 x 1/4-20

47

787-01779

Chute Deflector Bracket

48

731-07240A

Wheel Dust Cover

49

731-07355

Spring Body

50

738-04502

Shoulder Screw, 1/4-20 x 0.50

51

731-07789

Lower Tray

52

954-04259A

V-Belt

53

747-05183

Pivot Rod

54

731-09507†

Hubcap, 8”, Yellow

 

731-09429

Hubcap, 8”, Gray

55

731-09508†

Hubcap, 11”, Yellow

 

731-07875

Hubcap, 11”, Gray

56

731-07486

Side Discharge Chute

57

987-02516A

Mulch Plug (Incl. 47, 58-59)

 

687-02584A

Mulch Plug Ass’y, International

58

732-1014C

Torsion Spring

59

747-0710A

Hinge Pin

 

 

 

† If Equipped

9

MTD 12AKD3X, 12ABD2X, 12A-B2X, 12A-A1X, 12A-AOX User Manual

Model Series 12AV/GB2X

36

67

61

41

56

42

64

4

59

71 58

39

46

44

15

43

37

24

40

 

6

 

 

25

 

 

5

18

 

 

 

16

53

 

40

 

3

16

 

 

 

17

 

50

45

 

 

 

4

27

7

 

 

12

 

3

38

20

 

57

33

55

 

 

 

A 54

34

 

 

48

35

30 29 2

28

8

14

76

77

1

52 31

13

23

21

38 51

50

65

60

66

72

3

49

22

 

 

 

9

 

75

 

 

 

 

32

 

 

10

 

 

 

 

 

 

 

 

11

 

 

 

47

19

 

 

 

 

26

 

 

 

 

 

74

32

 

 

 

 

 

 

70

66

69 63

73

68

62

10

Ref

Part Number

Description

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

787-01871B

Deck , 21”

787-01873B

Deck, 21”

787-01872C

Deck, 21”

941-00019

Bearing Assembly

710-04995A

Screw, 5/16-14 x .750

712-04222

Nut, Sq., 1/4-20

749-04608A

Lower Handle

710-04998

Carriage Screw ,5/16-18

710-04683B

Screw, 3/8-16 x 1.00

687-02528

Blade Adapter (159cc)

942-0741A

Mulching Blade

736-0524B

Blade Bell Support

710-1044

Screw, 3/8-24 x 1.50

731-07203

Trailing Shield

732-04675A

Transmission Wire

647-04271

Grass Catcher Frame

764-04082B

Grass Bag

964-05065

Grass Bag, Remington

631-04369A

Rear Discharge Door Assembly

631-04389A

Rear Discharge Door Assembly

732-05061A

Torsion Spring - RH

732-05062A

Torsion Spring - LH

720-05099

Adjustment Lever Knob (Orange)

720-04131A

Adjustment Lever Knob (Red)

720-04130

Adjustment Lever Knob (Black)

710-05073

Screw, 1/4-20 x .500

732-04704

Compression Spring

731-07797

Front Cover

787-01793

Front Axle Clip

712-04064

Nut, Flange Lock, 1/4-20

720-04122

Wing Knob

720-04124

Wing Knob, Red

720-05090

Wing Nut, Orange

911-04150

Front Axle Assembly

931-04535B

Engine Baffle

911-04144B

Rear Axle Assembly

917-04801

Spur Gear, 14T - RH

917-04802

Spur Gear, 14T - LH

710-04531

Screw, 1/4-20 x .390

918-04881A

Transmission Assembly

 

 

Model Series 12AV/GB2X

Ref

Part Number

Description

No.

 

 

 

 

 

32

712-04217

Flange Lock Nut, 3/8-16

33

747-0710A

Hinge Pin

34

634-04625

Rear Wheel, 11”, Oyster Gray

 

634-05062

Rear Wheel, 11 x 2.0, Zag, Black

35

715-04099

Dowel Pin

36

753-06060A

Control Lever Assembly

37

749-04679

Upper Handle

38

710-0895

Screw, 1/4-15 x .750

39

720-0279

Knob

40

725-0157

Cable Tie

41

710-1205

Rope Guide

42

946-04655A

Drive Cable

43

946-04703A

Control Cable (5X65RU)

 

946-1130

Control Cable (6X65RU)

 

946-04661A

Control Cable (Briggs)

44

747-05209C

Blade Control

 

747-06525

Blade Control, Orange

45

720-05066A

Wing Nut

46

738-04419A

Sldr. Screw, .375 x .126 x 1/4-20

47

734-04581

Front Wheel, Gray, Pin Bar

 

634-05040

Front Wheel, Black, Zag

48

731-07240A

Wheel Dust Cover

49

731-07355

Spring Body

50

738-04502

Shoulder Screw, 1/4-20 x 0.50

51

731-07789

Lower Tray

52

954-04260

V-Belt

53

747-05183

Pivot Rod

54

787-01779

Chute Deflector Bracket

55

732-1014C

Torsion Spring

56

731-07486

Side Discharge Chute

 

731-07131

Side Discharge Chute

57

987-02516A

Mulch Plug (Incl. 33, 54-55)

 

687-02531A

Mulch Plug (Incl. 33, 54-55)

58

725-06114†

Plunger Switch

59

731-09755†

Electric Start Housing, LH

60

725-06121A†

Battery Charger

61

710-0136†

Screw, 1/4-20 x 1.75

62

710-0276†

Bolt, Carr., 5/16-18 x 1.00

63

912-0429†

Nut, Hexlk, 5/16-18

64

731-09728†

Key

 

 

 

Continued on next page

11

Model Series 12AV/GB2X

Ref

Part Number

Description

No.

 

 

 

 

 

65

725-04903†

Battery

66

738-04431A†

Scr., Sldr., 5/16-14 x .972

67

931-05131A†

Key Switch

68

726-0201†

Speed Nut

69

731-07135†

Battery Housing

70

731-07154A†

Battery Housing Top

71

731-09753A†

Electric Start Housing, RH

72

735-04213B†

Lid Seal

73

736-0242†

Washer, Bell, .340 x .872 x .080

74

731-09429†

Hubcap, 8”, Grey

75

731-07875†

Hubcap, 11”, Grey

76

921-04041

Water Nozzle Adapter

77

731-07487

Water Nozzle

925-06140B†

Wire Harness (Not Shown)

725-05106†

Fuse (Not Shown)

† If Equipped

12

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