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17

REF 

NO.

PART 

NUMBER

DESCRIPTION

Qty.

1

684-04037

Chute Assembly

1

2

710-04071

Carriage Bolt 5/16-18 x 1.0”

1

3

710-0451

Carriage Bolt 5/16-18

11

4

712-3068

Flange Lock Nut, 5/16-18

1

5

720-0284

Wing Nut 5/16-18 (black)

1

720-04032

Wing Nut 5/16-18 (yellow)

1

 6

731-04388A Chute Handle

1

7

731-04426A Upper Chute

1

8

736-0159

Flat Washer .349 x .879 x .063

2

9

731-04127

Lower Chute

1

10

731-04353

Chute Ring

1

11

731-2636A

Chute Adapter 5” Dia.

1

12

732-04111

Chute Adjustment Spring

1

13

712-04064

Flange Lock Nut 1/4-20

5

14

731-2643

Clean-out Tool

1

15

731-2635

Clean-out Tool Mount

1

16

725-0157

Cable Tie

1

17

710-0134

Carriage Screw 1/4-20 x 0.62”

5

18

710-0520

Hex Bolt 3/8-16 x 1.50”

1

19

710-0604A

AB Screw 5/16-18 x .625

4

20

712-04063

Flange Lock Nut, 5/16-18

10

21

712-04065

Flange Lock Nut, 3/8-16

1

22

712-0266

Hex Lock Nut 3/8-16

1

23

715-04020

Spiral Pin

2

For parts and/or 

accessories 

please call 

1-800-800-7310, or 

1-330-220-4683.

www.mtdproducts.com

Part List: 

Dual Stage 

Snow 

Thrower

REF 

NO.

PART 

NUMBER

DESCRIPTION

Qty.

24

726-04012

Push On Nut

2

25

731-04218B Impeller

1

26

732-0611

Extension Spring

1

27

736-0174

Wave Washer

1

28

738-0281

Shoulder Screw 3/8-16

1

29

741-0245

Hex Flange Bearing

2

30

741-0309

Ball Bearing

1

31

750-04191

Spacer

1

32

756-04035

Flat Idler

1

33

784-0434

Auger Idler Bracket

1

34

790-00075

Bearing Housing

1

35

618-04292

Auger Gearbox Assembly

1

36

684-04113

Auger Assembly - LH

2

37

684-04114

Auger Assembly - RH

2

38

684-04166

Auger Housing, 22”

1

39

714-04040

Bow Tie Cotter Pin 72

4

40

731-04870

Spacer, 1.25 x.75 x 1.00 

2

41

736-0351

Flat Washer

2

42

738-04124A Shear Pin,.25 x 1.50

4

43

741-0493A

Flange Bushing

8

44

790-00087A Hex Bearing Housing

2

45

790-00117

Shave Plate

1

46

784-5580

Skid Shoe

2

47

736-0258

Flat Washer

1

9

Summary of Contents for 3AA

Page 1: ...ed in effective working order by the operator In the State of California the above is required by law Section 4442 of the California Public Resources Code Other states may have similar laws Federal laws apply on federal lands A spark arrester for the muffler is available through your nearest engine authorized service dealer or contact the service department P O Box 361131 Cleveland Ohio 44136 0019...

Page 2: ...epare and maintain the unit for best performance Please read and understand what it says Customer Support If you have difficulty assembling this product or have any questions regarding the controls operation or maintenance of this unit you can seek help from the experts Choose from the options below 1 Visit mtdproducts com Click on the Service Support menu option 2 Phone a Customer Support Represe...

Page 3: ...ers Read and follow all instructions in this manual before at tempting to operate this machine Failure to comply with these instructions may result in personal injury When you see this symbol HEED ITS WARNING Your Responsibility Restrict the use of this power machine to persons who read understand and follow the warnings and instructions in this manual and on the machine ...

Page 4: ...e and machine adjust to outdoor temperature before starting to clear snow 9 To avoid personal injury or property damage use extreme care in handling gasoline Gasoline is extremely flammable and the vapors are explosive Serious personal injury can occur when gasoline is spilled on yourself or your clothes which can ignite Wash your skin and change clothes immediately a Use only an approved gasoline...

Page 5: ...fety devices Check their proper operation regularly Refer to the maintenance and adjust ment sections of this manual 2 Before cleaning repairing or inspecting machine disen gage all control levers and stop the engine Wait until the auger impeller come to a complete stop Disconnect the spark plug wire and ground against the engine to prevent unintended starting 3 Check bolts and screws for proper t...

Page 6: ...o Figure 1 Clean Out Tool This tool and the electric extension cord if so equipped may be fastened with a cable tie to the rear of the auger housing for shipping purposes In that case cut the cable tie and remove the extension cord now Final Adjustments IMPORTANT Check the adjustments as instructed and make any final adjustments necessary before operating the unit Check all nuts and bolts for tigh...

Page 7: ...d to avoid uneven wear on the skid shoes 3 Tighten nuts and bolts securely Routing The Drive Cable 1 Make sure that the drive cable is routed parallel to the left upper handle then across the top of the lower handle and finally parallel to the right lower handle See Figure 5 2 Three cable ties have been used to loosely tie the two control cables to the lower handle Two of these cable ties are on e...

Page 8: ...wing corresponds to the direction of the chute opening Use the chute handle to turn the chute assembly in the direction you wish to throw the snow Chute Knob The distance snow is thrown can be adjusted by either raising or lowering the upper chute Loosen the chute knob on the side of the upper chute to adjust Pivot the upper chute to desired position and retighten the chute knob Ignition Key The i...

Page 9: ...rounded at all times to avoid the possibility of electric shock to the operator If your house wiring system is not a three wire grounded system do not use this electric starter under any conditions WARNING and free from rust or other foreign particles Make sure to wipe off any spilled fuel before starting the engine 6 At the end of the job empty the fuel tank if the snow thrower is not going to be...

Page 10: ... button and slowly rotate the choke to OFF position If the engine falters rotate the choke to FULL and then gradually to OFF NOTE When engaging the electric starter a slight hesitation of a few seconds may occur before the engine starts to turn This is normal and is not harmful to the engine 14 Disconnect the power cord from the receptacle first and then from the switch box on the engine 15 Allow ...

Page 11: ...he drive control 6 As the snow thrower starts to move maintain a firm hold on the handle and guide the snow thrower along the path to be cleared 7 Release the auger and drive controls to stop the snow throwing action and forward motion NOTE Your unit is equipped with a clutch in the transmis sion If the wheels stop turning while trying to discharge large volumes of snow immediately disengage the d...

Page 12: ...install skid shoes Tighten securely Servicing Augers The augers are secured to the spiral shaft with four shear pins and cotter pins If you hit a foreign object or ice jam the snow thrower is designed so that the pins may shear Refer to Figure 9 If the augers do not turn check if the pins have sheared Replace if needed with proper shear pins Refer to item 42 on page 17 for part number IMPORTANT NE...

Page 13: ...g it forward and rolling in off of the pulley See Figure 12 2 Squeeze the auger control handle to release the auger brake which is the tab that holds the belt onto the auger pulley Remove the belt 3 Replace with new belt after replacing the drive belt Drive Belt NOTE Replace the drive belt before reassembling the new auger belt 1 Tip the snow thrower up and forward so that it rests on the auger ho...

Page 14: ...ower with fuel in tank indoors or in poorly ventilated areas where fuel fumes may reach an open flame spark or pilot light as on a furnace water heater clothes dryer or gas appliance NOTE It is important to prevent gum deposits from forming in essential fuel system parts of the engine such as the carburetor fuel filter fuel hose or tank during storage CAUTION Alcohol blended fuels called gasohol o...

Page 15: ...wire disconnected 5 Faulty spark plug 6 Engine not primed 7 Engine flooded from excessive priming Problem Possible Cause s Solution 1 Fill tank with clean fresh gasoline 2 Clean fuel line 3 Insert key See Ignition Key on Page 8 4 Connect wire to spark plug 5 Clean spark plug readjust gap or replace 6 Prime engine four times 7 Wait at least ten minutes before starting 1 Move choke lever to OFF posi...

Page 16: ...e call 1 800 800 7310 or 1 330 220 4683 www mtdproducts com Part List Dual Stage Snow Thrower 4 9 18 34 22 32 47 33 28 20 30 31 24 25 27 10 38 3 21 15 12 13 16 46 3 20 45 23 35 8 5 17 11 14 20 3 26 19 44 29 41 43 36 42 39 40 37 20 7 6 3 2 1 ...

Page 17: ...e Lock Nut 3 8 16 1 22 712 0266 Hex Lock Nut 3 8 16 1 23 715 04020 Spiral Pin 2 For parts and or accessories please call 1 800 800 7310 or 1 330 220 4683 www mtdproducts com Part List Dual Stage Snow Thrower REF NO PART NUMBER DESCRIPTION Qty 24 726 04012 Push On Nut 2 25 731 04218B Impeller 1 26 732 0611 Extension Spring 1 27 736 0174 Wave Washer 1 28 738 0281 Shoulder Screw 3 8 16 1 29 741 0245 ...

Page 18: ...18 2 4 5 55 1 13 3 9 8 10 12 11 39 21 23 24 40 43 49 47 51 51 51 51 48 46 45 44 50 41 14 4 15 31 27 30 16 29 15 32 42 38 18 20 22 28 16 37 53 52 54 36 33 17 26 25 19 34 35 7 6 ...

Page 19: ...1 For parts and or accessories please call 1 800 800 7310 or 1 330 220 4683 www mtdproducts com Part List Dual Stage Snow Thrower REF NO PART NUMBER DESCRIPTION Qty 28 741 0245 Hex Flange Bearing 2 29 741 04108 Hex Flange Bearing 2 30 756 0625 Cable Roller 1 31 784 0419B Drive Housing Frame 1 32 790 00223 Auger Cable Bracket 1 33 790 00224 Auger Cable Adj Bracket 1 34 634 0232A Wheel Assbly Snow H...

Page 20: ...f the exterior finish due to use or exposure d Service completed by someone other than an authorized service dealer e MTD does not extend any warranty for products sold or exported outside of the United States its possessions and territories except those sold through MTD s authorized channels of export distribution f Replacement parts that are not genuine MTD parts g Transportation charges and ser...

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