Troy-Bilt 660 Series Setup guide

TROY-BILT 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
Mid Frame Tiller — 660 Series
Form No. 769-03825
(January 22, 2008)

22
660 Series Handle & Tine Shield
4
17
2
17
1
12
11
18
19
21
20
23
22
24
16
13
8
9
Transmission Top Cover
7
8
9
6
15
14
5
420 24
23
22
40 25 41
35
34
33
32 29
31
30
38
37
27
28
Transmission
36
39
36
26
37
38
10

33
660 Series Handle & Tine Shield
Ref. Part Number Description
1. 1918801 Handlebars
2. 720- 0274 Grip
3. 1916784 Reverse Clutch Control Cable
4. 118 6347 Height Adjustment Screw
5. GW-9955 Keyed Washer
6. 1900475 Handlebar Hgt. Adjustment Bracket
7. 710-0514 Hex Hd. Screw, ⁄-16 x 1
8. 736-3050 Plain Washer, ⁄
9. 712-3000 Hex Locknut, ⁄-16
10. 746-04027 Forward Clutch Control Cable
11. GW-9442 Wheel Gear Control & Cable Ass.
12. GW-9057 Wheel Gear Control Lever Knob
13. 1186211 Hex Nut, ⁄-24
14 GW-90064 Hex Head Screw, ⁄-16 x 5/8
15. 736-0169 Lockwasher, ⁄
16. 725-0157 Cable Ties
17. 111474 8 Round Head Screw, #10-32 x ⁄
18. 110 024 0 Lockwasher, #10
19. 1186208 Hex Nut, #10-32
20. GW-9390 Grip
21. 1918802 Forward Clutch Bail
22. GW-9853 Sems Nut
23. GW-20806 Bail Support Bracket
24. 710-0599 Self-tapping Screw, ⁄-20 x ⁄
25. 686-04078 Tine Hood
26. GW-2525 Depth Regulator
27. 710-04049 Hex Flange Screw, ⁄-18 x ⁄
28. 712-04064 Hex Locknut, ⁄-20
29. 710-0597 Hex Head Screw, ⁄-20 x 1
30. 732-04320 Spring
31. 750-04556 Spacer
32. 715-04034 Roll Pin (spiral), ⁄ x 1
33. GW-1117A Depth Regulator
34. GW-9120 Retaining Ring
35. GW-9119 Depth Regulator Knob
36. 710-3005 Hex Head Screw, ⁄-16 x 1-⁄
37. G W-1113 -1 Drag Bar Bushing
38. 712-04065 Hex Nut, ⁄-16
39. GW-20775 Drag Bar
40. 710-0759 Self-tapping Screw, ⁄-18 x ⁄
41. 710-0599 Self-tapping Screw , ⁄-20 x ⁄

44
640 & 650 Series Drive System
5
6
2
3
4
9
1
10
8
12
14
15
16
15
48 13
17 41
20 38 36 32 42 35
41
19
7
44
19
33
39
40 45
46 31 21 51 11
22
47
39
40 23
24
49
50
37
30
26
25
32
27
18
28
55
57
60
55
58
54 52
54
100
53
54
53
52
56
58
61
64
62
63

55
660 Series Drive System
Ref. Part Number Description
1. 710-0331 Hex Screw, ⁄-24 x 2.25 (A)
—710-0539 Screw, ⁄-24 x 1.75 (B)
—710-04458 Screw, ⁄-24 x 1.25 (C)
2. 786-04070 Clutch Cable Bracket
3. 73 6 - 0119 Lockwasher, ⁄
4. 710-0107 Hex Head Screw, ⁄-24 x ⁄
5. 731-05290 Cover
6. 712-3004A Flange Lock Nut, ⁄-18
7. 714-0139 Key, ⁄-2 (A)
—714-04029 Key, ⁄ x 1.75 (B)
—714-04042 Key, ⁄ x 1.5 (C)
8. 736-04187 Shim
9. 619-04130 Engine Pulley (A,C)
—619-04015 Engine Pulley (B)
10. 736-0452 Belle. Washer, .344 x 1.0 x .063 (A,B)
—736-04193 Belle. Washer .827 x .331 x .098 (C)
11. 710-04458 Hex Head Screw, ⁄–24 x 1-⁄
12. 710-3103 Hex Head Screw, ⁄–18 x 2
13. 786-04276 Reverse Idler Arm
14. 756-04169 Reverse Idler Pulley
15. 736 -0159 Flat Washer, ⁄
16. 732-04081 Wire Formed Belt Guide
17. 710 - 0117 Hex Head Screw, ⁄-24 x 1
18. 726-0201 Speed Nut, .3125
19. 736-3078 Flat Washer, 1-⁄
20. 732-04077 Reverse Return Spring
21. 619 -04123 Transmission Pulley
22. 736-04079 Support Washer
23. 754-04095 Reverse Clutch Belt
24. 754-04094 Forward Clutch Belt
25. 710-04459 Self-tapping Screw, #10-32 x ⁄
26. 786-04080 Belts/Pulleys Guard
27. 712- 04063 Hex Flange Nut, ⁄–18
28. 710-04043 Hex Flange Screw, ⁄-18 x ⁄
29. 786-04066 Engine Support Bracket (left side)
Ref. Part Number Description
30. 786-04067 Engine Support Bracket (right side)
31. 714-04042 Key, ⁄ x 1.50
32. 710-0395 Hex Head Screw, ⁄–18 x 2-⁄
33. 786-04277 Mounting Bar
34. 710-1260 Hex Flange Screw, ⁄-18 x .75
35. 710-0805 Hex Head Screw, ⁄-18 x 1-⁄
36. 736-0275 Flat Washer, ⁄
37. 732-04082 Belt Guide
38. 750 -04160 Pivot Bushing
39. 73 6 - 0119 Lock Washer, ⁄
40. 712-3010 Hex Nut, ⁄-18
41. 748-04087 Shoulder Washer
42. 786-04275 Forward Tiller Direction Idler Arm
43. 710-04460 Self-tapping Screw, #10-24
44. 732-04078. Spring
45. 712-3000 Hex Locknut, ⁄-18
46. 756 -04170 Forward Idler Pulley
47. 710-0347 Screw, ⁄-16 x 1-⁄
48. 712- 0158 Hex Lock Nut, ⁄-18
49. 710-04461 Screw, ⁄-20 x ⁄
50. 736-0463 Flat Washer, ⁄
51. 736-04193 Belleville Washer, .827 x .331 x .098
52. 710-0514 Hex Head Screw, ⁄-16 x 1
53. 742- 0 4119 Bolo Tine-single (Left)
54. 712-3000 Hex Locknut, ⁄-16
55. 710-0606 Hex Head Screw, ⁄-20 x 1.5
56. 710-3096 Hex Head Screw, ⁄-16 x 2
57. 712- 04064 Flange Hex Locknut, ⁄-20
58. 742- 0 4118 Bolo Tine-single (Right)
59. 686-04067 Tine Holder
60. 634-04232 Wheel Assembly, 13 x 5 x 6
61. 749 -04193 Bumper
62. 712-04063 Hex Lock Nut, ⁄-18
63. 710-0395 Hex Screw, ⁄-18 x 2-⁄
64. 726-0201 Speed Nut, .3125
A — Model 662
B — Model 663
C — Model 665

66
660 Series Transmission Assembly
18
20 19
32
37
27
19
20
10
41
36 29
28
43
39
2
17
22
33
23
8
22
34
42
26
14
18
21
38
9
24
35
15
5
14
11 18
21
740
7
31
25
13
1
3
3
16
16
12
4

77
660 Series Transmission Assembly
* — The at washers listed are used as required to obtain .005 to
.030 in allowable end play on the wheel shaft and tine shaft and
a .005 to .015 in end play on the drive shaft.
Ref. Part Number Description
1. 1105620 Pipe Plug
2. 1113527 Retaining Ring
3. 1915068 Hex Screw, ⁄-20 x .625
4. 1915069 Self-Sealing Screw, ⁄-20 x .875
5. 611- 0 40 02 Eccentric Shaft
6. 619-04010 Transmission Housing
7. 710-04043 Hex Flange Screw, ⁄-18 x .750
8. 711-04080 Tiller Shaft
9. 711- 0 4 4 82 Wheel Shaft
10. 716-04102 Retaining Ring
11. 716-04104 Retaining Ring
12. 718-04406 Rear Bearing Cover
13. 721-04001 Oil Seal, 1.79 x .25
14. 721-04031 Oil Seal, 1.0 x 1.499
15. 721-04034 Oil Seal, .625 x 1.0
16. 721-04035 Oil Seal, .984 x 1.75
17. 721-04044 Oil Seal, .750 x 125
18. 736-04258 Washer, 1.375 x 1.015 x .01*
—736-04259 Washer, 1.375 x 1.015 x .015*
—736-04260 Washer, 1.375 x 1.015 x .03*
—736-04305 Washer, 1.75 x 1.5 x .062*
—736-04306 Washer, 1.75 x 1.5 x .005*
—736-04307 Washer, 1.75 x 1.5 x .03*
—736-04308 Washer, 1.75 x 1.5 x .01*
—736-04309 Washer, 1.375 x 1.015 x .062*
Ref. Part Number Description
19. 741-04298 Cone Bearing
20. 741-04299 Cup Bearing
21. 741-04300 Bushing, 1.25 x 1 x .005 x 1.5
22. 741-3037 Ball Bearing
23. GW-1104 Woodru Key, .25 x 1.12
24. GW-1442 Pin, .375 x .72
25. GW-20694 Transmission Cover Gasket
26. GW-20712 Wheel Drive Clutch
27. GW-20718 Spur Gear
28. GW-20791 Pinion Shaft
29. GW-20792 Pinion Gear
30. GW-20873 Housing Cover
31. GW-20910 Transmission Cover
32. GW-20912 Drive Shaft
33. GW-20913 Worm Gear
34. GW-20914 Wheel Drive Gear
35. GW-9055 Spring, .850 x .875
36. GW-9093 Bowed Ring
37. GW-9301 Key, .188 x 1
38. GW-9373 Hi-Pro Key, .25 x 1.312
39. GW-9428 Bushing, 1.24 x .75 x .18
40. GW-9467 Oil Plug
41. GW-9677 Hex Screw, ⁄-18 x .38
42. GW-9935 Washer, 1.46 x 1.016 x .062
43. GW-9953 Washer, 1.022 x .75 x .059

88
660 Series Electric Start (Pony ES Only)
12
12
17
4
6
3
8
20
1
3
20
5
16
19
14
2
14
2
20
18
5
4
9
8
11
21
15
9
1
18
( + )
( - )
13
10

99
660 Series Electric Start (Pony ES Only)
Ref. Part Number Description
1. 1186073 Carriage Screw ⁄-20 x 1.25
2. 118 6211 Hex Nut ⁄-24
3. 118 630 9 Flange Screw ⁄-20 x .625
4. 118 6389 Hex Locknut ⁄-20
5. 1901202 Cable (Ground Wire)
6. 725-04346 Wire Harness Assembly
— — With connector to large solenoid
stud (Red Wire)
— — With connector to small solenoid
stud (Red Wire)
— — With connector to solenoid
grounding screw (Red Wire)
— — With connector to engine ground
shut-o (Green Wire)
— — Plastic protector tube; wire terminal
7. 725-04346 Electric Start Harness
8. 686-04024 Battery Bracket Assembly
9. 710-0599 Self-tapping Screw ⁄-20 x .5
10. 712-3006 Hex Nut ⁄-20
11. 725-0157 Cable Tie
12. 725-0267B Ignition Switch
13. 725-1706A Battery 270 CCA
14. 7 36 - 0119 Lock Washer 5/16
15. 736-0147 Lock Washer #10
16. 736-0607 External Lock Washer ⁄
17. GW-2614 Keyswitch Clamp
18. GW-96510 Cable (Solenoid to Starter Motor)
19. GW-96514 Solenoid (Incl. Nuts and Washers
for Cables and Wires)
20. GW-97020 Insulating Boot

Notes
10