MTD 500 Series Setup guide

MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019
Printed In USA
Illustrated Parts Manual
500 Series Snow Thrower — L & Q Style
Form No. 769-03410
(August 3, 2007)

2
Auger & Auger Housing
2
7
918
1
17
6
13
3
25
23
9
19
15
52
14
12
22 16 5
8
27
5
7
43
47
38
45
42
39
30
32
32
30
32
20
28
33
21
31
32
10
41
37
40
51
48
44
51
36
46 50 49
7
34
9
4
4
7
35
53 24
35
26
29
28
11

3
Auger & Auger Housing
Ref. Part Number Description
1. 731-2635 Clean-out Tool Bracket
2. 684-04057A Impeller Assembly, 12” Dia.
3. 710-0347 Hex Screw, 3/8-16, 1.75, Gr5
4. 710-0451 Carriage Bolt, 5/16-18, .750 Gr1
5. 710-04484 Screw, 5/16-18, 0.625
6. 710-0703 Carriage Screw, 1/4-20, .750, Gr5
7. 712-04063 Flange Lock Nut, 5/16-18, Nylon
8. 712-04064 Flange Lock Nut, 1/4-20, Nylon
9. 712-04065 Flaneg Lock Nut, 3/8-16, Nylon
10. 714-04040 Bow-tie Cotter Pin
11. 725-0157 Cable Tie, 3/16 x .05 x 7.4
12. 726-04012 Speed Nut
13. 731-04705 Chute Adapter
14. 732-04460 Extension Spring, .38 OD x 3.6
15. 736-0174 Wave Washer, .625 x .885 x .015
16. 736-0242 Bell Washer, .340 x .872 x .060
17. 731-2643 Clean-out Tool
18. 738-0143 Shoulder Screw, .498 x .34, 3/8-16
19. 738-0281 Shoulder Screw, .625 x .17, 3/8-16
20. 738-04124A Shear Pin, .25 x 1.50
21. 741-0245 Hex Flange Bearing x .75 ID
22. 741-0309 Ball Bearing, .75 ID x 1.85 OD
23. 756-0981B Idler Pulley, 2.75 OD
24. 790-00075 Bearing Housing, 1.85 ID
25. 790-00080A Auger Idler Bracket w/ Brake
26. 618-04170A AUger Gearbox Assembly, 22”
— 618-04171A Auger Gearbox Assembly, 24”
— 618-04172A Auger Gearbox Assembly, 26”
— 618-04173A Auger Gearbox Assembly, 28”
— 618-04194A Auger Gearbox Assembly, 30”
27. 684-04226 Auger Housing Assembly, 22”
— 684-04265 Auger Housing Assembly, 24”
— 684-04264 Auger Housing Assembly, 26”
— 684-04268 Auger Housing Assembly, 28”
— 684-04273 Auger Housing Assembly, 30” (TB)
Ref. Part Number Description
28. 684-04107 Spiral Assembly, LH
29. 684-04108 Spiral Assembly, RH
30. 731-04870 Spacer, 1.25 OD x .75 ID x 1.00
31. 736-0188 Flat Washer, .76 x 1.49 x .06
32. 741-0493A Flange Bushing, .80 ID x .91 OD
33. 790-00087A 1” Hex Bearing Housing
34. 790-00117 Shave Plate, 22”
— 790-00120 Shave Plate, 24”
— 790-00121 Shave Plate, 26”
— 790-00118 Shave Plate, 28”
— 790-00119 Shave Plate, 30”
35. 790-5580 Skid Shoe, Standard
— 790-00091 Skid Shoe, Deluxe
— 790-05984 Skid Shoe. Plastic
36. 618-0124A Auger Housing, RH Reduced
37. 618-0123A Auger Housing, LH Reduced
38. 741-0662 Flange Bearing, .75 x 1.0 x .59
39. 710-0642 Sel-tapping Screw, 1/4-20, 0.750
40. 711-04286 Auger Axle, 22”
— 711-04285 Auger Axle, 24”
— 711-04284 Auger Axle, 26”
— 711-04283 Auger Axle, 28”
— 711-04282 AUger Axle, 30”
41. 714-0161 Hi-pro Key, 3/16 x 5/8
42. 715-04021 Dowel Pin, .25 OD x 1.2
43. 717-04126 Worm Shaft, .75 OD
44. 717-04449 Worm Gear, 20T
45. 718-04071 Thrust Collar
46. 721-0325 Plug, 1/4 x .437
47. 721-0327 Oil Seal, .75 x 1 x .131
48. 736-0351 Flat Washer, .760 ID x 1.5 OD
49. 736-3084 Flat Washer, .51 x 1.12
50. 741-0663 Flange Bearing, .75 x 1.0 x .925
51. 741-0661A Flaneg Bearing, .75 x 1.00 x .975
52. 746-04230 Auger Clutch Cable, 47.23”
53. 629-0071 Extension Cord, 110V, 3-Prong

4
Drive System
19
54
20
59
60
50
55
51
53
58
56
57
56
63
64
72
64
65
66
67 47
48
49
39
1
7
16
17
13
11
2
35 52
84 30
78
76
73 39
74
77
13
75
168
429
28
6
69 18 45
46
14
70
12
25 23 24 8
23 25 12
70
14
9
44
22
27
26
21
43
26
27
38
42
41
5
36
62
61
15
16
17
39
1
68
10 33
35
34
71
32
18
6
31
1
37
17
16
83
82
81
80
79
A
A
40
1
43
85

5
Drive System
Ref. Part Number Description
1. 710-1652 AB Screw, 1/4-20 x 0.625
2. 731-05353 Belt Cover
3. 732-0705 Cable Guide
4. 711-1268B Actuator Shaft
5. 746-04229 Drive Clutch Cable
6. 732-04345 Extension Spring
7. 790-00207A Drive Clutch Cable Guide Bracket
8. 684-04156A Shift Rod Assembly
9. 750-04474 Axle Support Tube
10. 714-0126 Hi-pro Key
11. 710-0602 TT Screw, 5/16-18 x 1.00
12. 717-04210 Gear, 56T
13. 736-3015 Flat Washer
14. 741-0245 Hex Flange Bearing
15. 790-00206A Auger Clutch Cable Guide Bracket
16. 756-0625 Cable Roller
17. 738-0924A C Screw, 1/4-28 x 0.375
18. 618-04288 Dogg Assembly - LH
— 618-04287 Dogg Assembly - RH
19. 726-04012 Speed Nut
20. 750-04477 Spacer
21. 711-04416 Hex Drive
22. 732-04311 Torsion Spring, .750ID x .968 Lg.
23. 731-05297 Spacer
24. 716-0104 E Ring
25. 736-0188 Flat Washer, .76 x 1.49 x .06
26. 736-0626 Flat Washer
27. 741-04076 Ball Bearing
28. 738-04180 Axle
29 731-04873 Spacer
30. 710-0654A TT Sems Screw, 3/8-16 x 1.0
31. 710-0788 TT Screw, 1/4-20 x 1.0
32. 790-00185 Shaft Retainer - LH
33. 634-04141 Wheel Complete
34. 736-0242 Bell Washer
35. 710-0627 Hex Bolt, 5/16-24 x 0.75
36. 684-04154 Friction Wheel Support Brkt. Assy.
37. 790-00096 Auger Cable Guide Bracket
38. 748-0190 Spacer
39. 738-04184A Shoulder Screw
40. 790-00316 Frame Cover
41. 656-04025A Friction Wheel Disc Assembly
42. 618-04283 Drive Shaft Assembly
43. 684-04159 Friction Wheel Assembly
Ref. Part Number Description
44. 716-0136 Retainer Ring
45. 726-0221 Speed Nut
46. 790-00183 Wheel Drive Frame
47. 756-04109 Auger Pulley
48. 736-0505 Flat Washer
49. 710-1245B Hex Bolt, 5/16-24 x 0.875
50. 736-0119 Lock Washer
51. 684-04169 Pulley Assembly
52. 748-0234 Shoulder Spacer
53. 750-04571 Spacer
54. 732-04308A Torsion Spring
55. 710-0672 Hex Screw, 5/16-24 x 1.25
56. 756-04252 Pulley Half
57. 754-0367 V-Belt, 2L x 33
58. 710-0809 TT Screw, 1/4-20 x 1.25
59. 790-00208B Drive Clutch Idler Bracket
60. 748-04112 Shoulder Spacer
61. 732-0264 Extension Spring
62. 712-0413 Jam Lock Nut, 5/8-18
63. 750-04303 Spacer
64. 756-04113 Pulley Half
65. 736-0247 Flat Washer
66. 710-0191 Hex Bolt, 3/8-24 x 1.25
67. 748-04053A Pulley Adapter
68. 746-0956A Steering Cable
69. 790-00186 Shaft Retainer - RH
70. 750-0767 Axle Spacer
71. 712-04065 Flange Lock Nut, 3/8-16
72. 754-04050 V-Belt,.500 x 35.00 Lg
73. 710-0751 Hex Screw, 1/4-20 x .620
74. 790-00217A Speed Selector Pivot Bracket
75. 790-00218A Speed Selector Shift Bracket
76. 712-04064 Flange Lock Nut 1/4-20
77. 712-04063 Flange Lock Nut 1/4-20
78. 736-320 Flat Washer
79. 618-0063A Bearing Assembly
80. 718-04144 Friction Wheel Hub
81. 735-04054 Friction Wheel Rubber
82. 790-00174 Friction Wheel Plate
83. 710-0896 AB Screw
84. 790-00289A Cover Plate
85. 634-04136 Wheel (Troy-Bilt) - LH
— 634-04137 Wheel (Troy-Bilt) - RH

6
L-Style Handle, Frame & Discharge Chute
20
19
26
11
12
13
14
15
16
2
45
23
22
23 24
25
27
1
5
21
8
36
4
17
6
7
8
10
18 11
22
28
32 33
34
50
42
40
41
39
38
37
36
35
51
30
52
31
29
45
43
46
53
54
55
56
44
49
48
47
60
59
58
57

7
L-Style Handle, Frame & Discharge Chute
Ref. Part Number Description
1. 684-04106B Handle Engagement Assembly RH
2. 738-04194 Flange Shoulder Screw
3. 731-04894C Lock Plate
4. 684-04250 Pivot Rod
5. 735-0199A Rubber Bumper
6. 710-04354 Screw, 1/4-20 x.375
7. 731-04896B Clutch Lock Cam
8. 712-04081A Shoulder Nut, 1/4-20
9. 725-04214 Wire Harness (Not Shown)
10. 725-1649 Light Socket
11. 720-0274 Handle Grip
12. 710-1233 Screw, #10-24 x 0.375
13. 738-04122 Shoulder Screw, 1/4-20 x 1.345
14. 710-04586 Screw, 1/4-20 x 1.625
15. 749-04141A Upper Handle RH
16. 710-0449 Carriage Screw, 5/16-18 x 2.25
17. 720-04039 Shift Knob
18. 631-04183 Handle Panel (Includes Ref. #19)
19. 731-05320 Lens
20. 725-1629 Lamp
21. 631-04134B Handle Clutch Lock - RH
22. 725-0157 Cable Tie
23. 712-04064 Flange Lock Nut, 1/4-20
24. 732-0193 Compression Spring
25. 790-00311 Shift Lever
26. 790-00248A Panel Bracket
27. 738-04125 Shoulder Screw
28. 746-04227A Speed Selector Cable
29. 736-0463 Flat Washer, .25 x .630 x .0515
30. 710-0224 Screw, #10-16 x .500
Ref. Part Number Description
31. 731-04427A Upper Chute
32. 790-00131 Joystick Bracket
33. 710-04187 Hi-Lo Screw, 1/4-15 x 0.5
34. 684-04116B 4-Way Chute Control™ Assembly
35. 749-04142A Upper Handle LH
36. 710-04326 Screw, #8-16 x 0.50
37. 732-04219A Clutch Lock Spring
38. 731-04913 Steering Control
39. 738-04126 Pin, 3/16
40. 716-04036 E Ring
41. 631-04133A Handle Clutch Lock - LH
42. 684-04105B Handle Engagement Assembly LH
43. 784-5594 Cable Bracket
44. 710-0449 Wing Knob
45. 712-04063 Flange Lock Nut, 5/16-18
46. 731-1313C Chute Tilt Cable Guide
47. 711-04469A Clevis Pin
48. 710-04484 Hex Screw
49. 749-04138 Lower Handle
50. 732-04238 Torsion Spring
51. 736-0267 Flat Washer
52. 731-04890A Joystick Pulley Cover
53. 710-0262 Carriage Bolt, 5/16-18 x 1.50
54. 710-0895 Hi-Lo Screw, 1/4-15 x .75
55. 710-04071 Carriage Bolt, 5/16-18 x 1.0
56. 731-04861B Lower Chute
57. 710-0627 Hex Screw, 5/16-24 x .750
58. 684-04162B Chute Support Bracket
59. 712-3087 Wing Nut, 1/4-20
60. 714-04040 Bow Tie Cotter Pin

8
Q-Style Handle, Frame & Discharge Chute
11
12
13
14
15
16
19
20 26
1
6
50 5
8
3
4
17
63
8
10
61
18
40
11
62
39
41
38
37
36
35
33
34
32
28
27
51
25
24
23
42
44
49
48
58
57
59
60
47
56
45
54
55
23
29
53
46
43
45
31
52
2
30
22

9
Q-Style Handle, Frame & Discharge Chute
Ref. Part Number Description
1. 684-04106B Handle Engagement Assembly RH
2. 738-04194 Flange Shoulder Screw
3. 731-04894C Lock Plate
4. 684-04250 Pivot Rod
5. 735-0199A Rubber Bumper
6. 710-04354 Screw, 1/4-20 x.375
7. 731-04896B Clutch Lock Cam
8. 712-04081A Shoulder Nut, 1/4-20
9. 725-04214 Wire Harness (Not Shown)
10. 725-1649 Light Socket
11. 725-1757 Heated Handle Grip
12. 710-1233 Screw, #10-24 x 0.375
13. 738-04122 Shoulder Screw, 1/4-20 x 1.345
14. 710-04586 Screw, 1/4-20 x 1.625
15. 749-04190A Upper Handle RH
16. 710-0449 Carriage Screw, 5/16-18 x 2.25
17. 720-04039 Shift Knob
18. 631-04181 Handle Panel (Includes Ref. #19)
19. 731-05319 Lens
20. 725-04213 Lamp
21. 631-04134B Handle Clutch Lock - RH
22. 725-0157 Cable Tie
23. 712-04064 Flange Lock Nut, 1/4-20
24. 732-0193 Compression Spring
25. 790-00311 Shift Lever
26. 790-00248A Panel Bracket
27. 738-04125 Shoulder Screw
28. 746-04396 Speed Selector Cable
29. 736-0463 Flat Washer, .25 x .630 x .0515
30. 710-0224 Screw, #10-16 x .500
31. 731-04427A Upper Chute
Ref. Part Number Description
32. 790-00131 Joystick Bracket
33. 710-04187 Hi-Lo Screw, 1/4-15 x 0.5
34. 684-04116B 4-Way Chute Control™ Assembly
35. 749-04191A Upper Handle LH
36. 710-04326 Screw, #8-16 x 0.50
37. 732-04219A Clutch Lock Spring
38. 731-04913 Steering Control
39. 738-04126 Pin, 3/16
40. 716-04036 E Ring
41. 631-04133A Handle Clutch Lock - LH
42. 684-04105B Handle Engagement Assembly LH
43. 784-5594 Cable Bracket
44. 710-0449 Wing Knob
45. 712-04063 Flange Lock Nut, 5/16-18
46. 731-1313C Chute Tilt Cable Guide
47. 711-04469A Clevis Pin
48. 710-04484 Hex Screw
49. 749-04138 Lower Handle
50. 732-04238 Torsion Spring
51. 736-0267 Flat Washer
52. 731-04890A Joystick Pulley Cover
53. 710-0262 Carriage Bolt, 5/16-18 x 1.50
54. 710-0895 Hi-Lo Screw, 1/4-15 x .75
55. 710-04071 Carriage Bolt, 5/16-18 x 1.0
56. 731-04861B Lower Chute
57. 710-0627 Hex Screw, 5/16-24 x .750
58. 684-04162B Chute Support Bracket
59. 712-3087 Wing Nut, 1/4-20
60. 714-04040 Bow Tie Cotter Pin
61. 725-04393 Heated Grip Switch
62. 710-0837 AB Screw

Notes
10

Notes
11

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