MTD 3BA Operator'S Manual Download Page 19

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Model 3BA

Ref. No.

Part No.

Description

684-04037

Chute Assembly

710-04071

Carriage Bolt 5/16-18 x 1.0”

710-0451

Carriage Bolt 5/16-18 x 0.750”

712-04063

Flange Lock Nut, 5/16-18

720-0284

Chute Knob Assembly

731-04388A

Chute Handle

731-04426A

Upper Chute

736-0159

Washer

712-04064

Flange Lock Nut, 1/4-20

10.

731-2636A

Chute Adapter

11.

710-0134

Carriage Screw 1/4-20 x 0.62”

12.

731-2643

Clean-out Tool

13.

725-0157

Cable Tie

14.

731-2635

Clean-out Tool Mount

15.

731-04353

Lower Chute Ring

16.

710-0451

Carriage Bolt 5/16-18 x 0.75”

17.

731-04127

Lower Chute

18.

732-04111

Chute Adjuster Spring

19.

784-5580

Skid Shoe

20.

731-04870

Spacer, 1.25OD x.75ID x 1.00 Lg.

21.

710-0726

AB Screw 5/16-12

22.

738-04124

Shear Pin,.25 x 1.50

23.

790-00117

Shave Plate

24.

750-04191

Spacer

25.

731-04218A

Impeller

26.

717-1772A

Worm Shaft

27.

715-04020

Spiral Pin

28.

721-0327

Oil Seal

29.

741-0662

Flange Bearing

30.

736-3084

Flat Washer,.51 x 1.12 x.06

31.

715-04021

Spiral Pin

32.

721-0325

Plug

33.

718-04071

Thrust Collar

34.

714-04040

Bow Tie Cotter Pin

35.

741-0663

Flange Bearing

36.

714-0161

Key

37.

717-0528A

Worm Gear 20T

38.

736-0351

Flat Washer

39.

684-04089

Auger Housing, 22”

40.

618-0124

Reducer Housing Assembly LH

618-0123

Reducer Housing Assembly RH

41.

710-0642

TT Screw 1/4-20 x 0.75”

42.

618-04181

Auger Gearbox Assembly

43.

684-04113

Auger Assembly - LH

684-04114

Auger Assembly - RH

44.

790-00087

Hex Bearing Housing

45.

741-0245

Hex Flange Bearing

46.

711-04286

Auger Axle

47.

741-0493A

Flange Bushing

48.

736-0351

Flat Washer

Ref. No.

Part No.

Description

Summary of Contents for 3BA

Page 1: ...em is equipped with a spark arrester meeting applicable local or state laws if any If a spark arrester is used it should be maintained 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 availa...

Page 2: ...p from the experts Choose from the options below Visit mtdproducts com for many useful suggestions Click on Customer Support button and you will get the four options reproduced here Click on the appropriate button and help is immediately available If you prefer to reach a Customer Support Representative please call 1 800 800 7310 The engine manufacturer is responsible for all engine related issues...

Page 3: ...ock surfaces 6 Disengage all control levers before starting the engine 7 Never attempt to make any adjustments while engine is running except where specifically recommended in the operator s manual 8 Let engine 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 a...

Page 4: ...of this manual 2 Before cleaning repairing or inspecting machine disengage 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 tightness at frequent intervals to keep the machine in safe working condition Also visually inspect mach...

Page 5: ... Figure 2 Hold both controls against the upper handle and pull up as shown in Figure 3 Make sure that the upper handle locks over the lower handle and the handle tabs align with the handle You may have to carefully maneuver the upper handle to clear the chute assembly CAUTION Be careful not to bend or kink the cables Figure 3 Tighten the handle knobs on each side of the handle Refer to Figure 2 Ro...

Page 6: ...e skid shoe in the highest position for maximum clearance Adjust skid shoes by loosening two hex nuts and carriage bolts on each skid shoe and moving the skid shoe to the desired position See Figure 4 Make certain the entire bottom surface of skid shoe is against the ground to avoid uneven wear on the skid shoes Tighten nuts and bolts securely Figure 4 Drive Cable Make sure that the drive cable is...

Page 7: ...row 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 ignition key is necessary for the engine to start Insert key and snap in place do not turn it to start stop the unit Remove key when th...

Page 8: ... F and prime four times below 15o F Grasp starter handle and pull rope out slowly until engine reaches start of compression cycle rope will pull slightly harder at this point Let the rope rewind slowly Pull rope with a rapid continuous full arm stroke Keeping a firm grip on the starter handle let the rope return to the starter slowly Repeat until engine starts As the engine warms up rotate the cho...

Page 9: ...rm engine rotate choke to OFF instead of FULL and press the starter button Do not push the primer button Before Stopping Run engine for a few minutes to help dry off any moisture on engine To avoid possible freeze up of the starter follow these steps Recoil Starter a With the engine running pull the starter rope with a rapid continuous full arm stroke three or four times Electric Starter if equipp...

Page 10: ...ired position and slightly overlap the previously cleared path Operating Tips For most efficient snow removal remove snow immediately after it falls Discharge snow downwind whenever possible Slightly overlap each previous swath Set the skid shoes 1 4 below the shave plate for normal usage The skid shoes may be adjusted upward for hard packed snow NOTE It is not recommended that you operate this sn...

Page 11: ... General Recommendations 1 Always observe safety rules when performing any maintenance 2 The warranty on this snow thrower does not cover items that have been subjected to operator abuse or negligence To receive full value from the warranty operator must maintain the snow thrower as instructed in this manual 3 Periodically check all fasteners and hardware to make sure these are tight Lubrication F...

Page 12: ...V Belts Follow instructions below to check condition of drive belts every 50 hours of operation Remove the plastic belt cover on the front of the engine by removing the self tapping screw and pressing the plastic tabs to release the belt cover Visually inspect for frayed cracked or excessively worn out belts Replace if necessary following instructions on page 13 SECTION 7 SERVICING YOUR SNOW THROW...

Page 13: ...ects the transmission to a bolt on the engine frame See Figure 15 Figure 15 Pivot the transmission forward to release pressure on the drive belt Remove from transmission pulley Remove the drive belt from around the engine pulley and away from the unit Place the new drive belt into the groove on the engine pulley See Figure 14 Tilt the transmission forward and position the drive belt on the drive p...

Page 14: ...park plug wire to the spark plug on the engine 7 Prime the engine as instructed earlier If the carburetor is flooded due to over priming wait till it dries out Engine runs erratic 1 Unit running at FULL choke 2 Blocked fuel line or stale gasoline 3 Water or dirt in fuel system 1 Turn choke knob to OFF position 2 Clean the fuel line fill tank with fresh gasoline 3 Drain fuel tank and carburetor Fil...

Page 15: ...rive Control 13 749 1092A Upper Handle 14 749 04147 Lower Handle 15 790 00053 Handle Tab 16 618 04008 Transmission Assembly 17 731 04162 Belt Cover 18 710 0809 TT Screw 1 4 20 x 1 25 19 710 1652 Screw 1 4 20 x 625 20 711 1364 Clevis Pin 21 738 1231 Axle 22 736 0242 Bell Washer 23 714 0115 Cotter Pin 1 8 x 1 0 24 714 0507 Cotter Pin 3 32 x 750 25 715 0249 Roll Pin 26 717 04066 Pinion 14T 27 717 040...

Page 16: ...16 Model 3BA 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 24 25 26 28 29 Shown for reference only 16 Shown for reference only 27 23 ...

Page 17: ...5 Spacer 8760ID x 1 25OD x 1900 12 750 1356 Spacer 8760ID x 1 25OD x 86 13 754 04013 V Belt 3 8 x 21 108 Lg 14 754 04014 V Belt 3 8 x 26 680 Lg 15 756 04024 Auger Pulley 16 756 0569 Pulley Half 17 712 3000 Hex Lock Nut 3 8 16 18 756 04035 Flat Idler 19 738 0281 Shoulder Screw 3 8 16 20 736 0174 Wave Washer 21 784 0434 Auger Idler Bracket 22 710 0520 Hex Bolt 3 8 16 x 1 50 23 710 0456 Screw 10 16 x...

Page 18: ...18 Model 3BA Shown for reference only 15 2 3 4 1 6 7 8 9 10 11 12 13 14 16 4 19 4 9 16 21 23 24 25 26 27 28 29 30 31 32 33 35 36 37 38 40 41 20 43 47 46 47 48 45 44 34 22 42 39 17 18 5 ...

Page 19: ...Lg 21 710 0726 AB Screw 5 16 12 22 738 04124 Shear Pin 25 x 1 50 23 790 00117 Shave Plate 24 750 04191 Spacer 25 731 04218A Impeller 26 717 1772A Worm Shaft 27 715 04020 Spiral Pin 28 721 0327 Oil Seal 29 741 0662 Flange Bearing 30 736 3084 Flat Washer 51 x 1 12 x 06 31 715 04021 Spiral Pin 32 721 0325 Plug 33 718 04071 Thrust Collar 34 714 04040 Bow Tie Cotter Pin 35 741 0663 Flange Bearing 36 71...

Page 20: ...ustments and normal deterioration of 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 par...

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