MTD S442 User Manual
Il l u s t r a t e d Pa r t s Ma n u a l
Printed In USA
Transmatic Lawn Tractor — Model Series 780
MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019
Form No. 769-06802
(January 7, 2011)
To The Owner
Thank You
Thank you for purchasing this lawn tractor. 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
Table of Contents
Axle, Front ...............................................................10
Battery ...................................................................... 8
Head Lamps .......................................................... 4-7
Mower Deck, 42-inch .............................................16
Mower Deck, 46-inch .............................................18
Pedal Controls ........................................................14
Dash Panel ............................................................ 4-7
Drive System ...........................................................14
Electrical Schematic .............................................. 22
Engine Accessories ................................................ 20
Fender .....................................................................12
Frame ....................................................................... 8
Fuel Tank ............................................................... 4 -7
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.
Hood ..................................................................... 4 -7
Deck Lift Handle/Linkage ....................................... 8
Muer .................................................................... 20
PTO Lever ................................................................. 8
Seat ..........................................................................12
Steering Wheel .......................................................10
Switches, Interlock .................................................. 8
Throttle Control .................................................... 4 -7
Transmission ...........................................................14
Wheels, Front ..........................................................10
Wheels, Rear ...........................................................14
Wiring Harness Schematic ................................... 22
Record Product Information
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.
Mo d e l nu M b e r
se r I a l nu M b e r
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)
2
0674 Yellow (Yard-Man)
0650 Metallic Red (White Outdoor)
0629 Silver Flake (MTD Platinum)
04038 Day Orange (Daedong)
04033 Flint Mica (Troy-Bilt XP)
Notes
3
K Style Hood
2
17
3
1
5
7
8
9
48
31
46
47
13
49
36
54
29
51
22
44
52
53
21
30
55
56
14
24
23
20
28
32
11
33
32
34
37
40
43
42
35
41
38
4
45
39
6
19
25
26
18
16
A
4
21
27
14
15
50
A
12
31
10
4
K Style Hood
Ref.
No.
1 631- 04272 Grill Assembly, Troy-Bilt
2 731- 06 40 4 K-Style Bumper
3 683-04441 Hood Assembly
4 710- 044 84 Screw, 5/16-18 x .750
5 710- 0895 Screw, 1/4-15 x .750
6 72 5- 0157 Cable Tie
7 925- 0963 Lamp
8 731- 06 095 Left Lens
9 731-06096 Right Lens
10 73 8- 04 091A Shoulder Screw, 5/16-18 x .43 x .29
11 783- 05327B Left Support Pivot Bracket
12 783- 05328A Right Support Pivot Bracket
13 710 -0 448 3 Screw, 1/4-20 x .500
14 710-05070 Screw, 1/4-20 x .500
15 710 -0 604A Screw, 5/16-18 x .625
16 712 -0 4 06 3 Flangelock Nut, 5/16-18
17 710-052 81 Screw, #12-16 x 1.25
18 783- 04584B Gas Tank Support Bracket
19 910 -0 224 Screw, #10-16 x .500
20 731-05265 Choke Plug
21 710 -059 9 Hex Washer Screw, 1/4-20 x .500
22 710 -314 4 Hex Screw, 3/8-16 x 2.0
23 710-3025 Hex Screw, 5/16-18 x .625
24 931-08054 Dash, Upper
25 741- 05 87 Bearing, .628 ID x 1.36
26 783- 06785 Bracket, Steering Support
27 7 8 3 - 0 6 811 Dash, Lower
28 750-04465B Flange Spacer, .390 x .671 x 1.095
29 74 6- 04 36 4 Throttle/Choke Cable
Part No. Description
Ref.
No.
30 783-04903A Speed Latch - No RMC
31 683-04448 Battery Assembly Rod
32 726 -0230 Cable Tie
33 751-0555B 1.5 Gallon Fuel Tank
34 751-06 03A Fuel Cap
35 951-04304 1.36 Gallon Fuel Tank
36 92 5 -1745 A Key
37 7 25 -0 157 Cable Tie
38 936-3008 Flat Washer, .344 x .750 x .120
39 951-10589 5 Gallon Carbon Canister
40 951-10 590 Vent Filter Canister
41 951-10610 Canister Adapter Bracket
42 751-10749-30 Fuel Hose, White
43 751-10750-28 Fuel Hose, Yellow
44 925-04659 3 Position Key Switch
45 95 1-109 47 Fuel Cap, 2.25”
46 75 1-1 211 8 Rollover Valve
47 735-04081 Rubber Grommet, 23 x 3.55
48 751-12 08 9 -28 Hose Vent, 3/16 EPA
49 710 -0778 Hex Washer Screw, 1/4-20 x 1.50
50 712 -0 4 06 5 Flangelock Nut, 3/8-16
51 731-07885 Shift Lever
52 731- 07966 Index Control
53 732- 04800 Compression Spring, .72 OD x .78
54 736-3006 Lock Washer, 1/4
55 747-05398 Speed Control Rod
56 783-06823 Speed Latch Tab
Part No. Description
95 1-1217 9 Fuel Cap, 2.25” EPA
NOTE, Tractor features vary by model. NOT all parts listed above and pictured on the previous page are standard equipment.
5
5 Style Hood
30
29
38
31
39
18
37
36
38
22
42
41
23
25
39
19
21
20
1
18
9
6
36
35
34
1
40
33
4
4
17
24
8
1
37
12
27
26
28
15
11
10
7
7
A
3
32
2
14
16
A
5
13
3
17
6
5 Style Hood
Ref.
No.
1 710-05070 Screw, 1/4-20 x .500
2 710- 0599 Hex Index Washer Screw, 1/4-20 x . 50 0
3 710- 060 4A Screw, 5/16-18 x .625
4 710 -0510 8 Screw, 1/4-15 x .750
5 712 -0 4 063 Flangelock Nut, 5/16-18
6 731- 04 945 Steering Support
7 783-0458 4B Gas Tank Support Bracket
8 783-04873B Dash, No RMC
9 983-04226 Speed Control Assembly
10 710-314 4 Hex Screw, 3/8-16 x 2.0
11 7 11- 0 7 36 Ferrule, 1/4-20 x 1.0
12 712 -0 4 065 Flangelock Nut, 3/8-16
13 714-04040 Bow Tie Cotter Pin, 72
14 783-06823 Speed Latch Tab
15 747-04430 Speed Selector Control Rod
16 750-04465B Flange Spacer, .390 x .671 x 1.095
17 710 -04 484 Screw, 5/16-18 x .750
18 710- 04593 Screw, 5/16-18 x .375
19 710- 0751 Hex Screw, 1/4-20 x .620
20 712 -0 4 06 4 Flangelock Nut, 1/4-20
21 7 25 -0 157 Cable Tie
22 925-0963 Miniature Lamp, 12V
Part No. Description
Ref.
No.
23 731-04949A Grill Lens
24 731-05078C Dash
25 751 -120 89 -28 Hose Vent, 3/16 EPA
26 73 8- 04 09 1A Shoulder Screw, 5/16-18, .43 x .29
27 783-05327B Left-hand Support Pivot Bracket
28 783- 05328A Right-hand Support Pivot Bracket
29 783-05454 Hood Pivot Bracket
30 783-05683 Hood
31 783-05685 Grill
32 783- 04903 Speed Latch, No RMC
33 925-04659 Key Switch
34 92 5-17 45A Key
35 731 -05 265 Choke Plug
36 683-04448 Battery Rod
37 726 -0230 Cable Tie
38 751-0555B Fuel Tank, 1.5 Gallon
39 751- 060 3A Fuel Cap
40 746 - 043 64 Throttle/Choke Cable
41 735-04 081 Rubber Grommet, 23 x 3.55
42 7 51 -12 118 Rollover Valve
Part No. Description
951-04304 1.36 Gallon Fuel Tank EPA
95 1-1217 9 Fuel Cap, 2.25” EPA
NOTE, Tractor features vary by model. NOT all parts listed above and pictured on the previous page are standard equipment.
7
Frame and PTO Lift
53
18
51
4
10
4
45
50
5
46
21
47
29
25
17
19
13
B
22
16
A
31
34
A
57
8
12
B
6
3
5
27
26
30
C
2
6
9
3
1
11
8
24
33
23
28
12
34
15
6
39
23
23
7
20
56
28
52
49
48
55
54
4
44
11
8
24
36
35
A
31
24
38
23
31
43
39
37
B
42
40
5
5
43
41
14
C
32
46“ Deck Lift
24
40
8
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