MTD 737-0168 Operator'S Manual Download

Page: 25 / 28

Styles C & D

REF.

NO.

PART

NO.

DESCRIPTION

731-2643

Clean Out Tool

684-04057

Impeller Assembly, 12” Diameter

710-0347

Hex Screw, 3/8-16, 1.75, Gr5, Std

710-0451

Bolt, Carriage, 5/16-18, .750 Gr1

710-0703

Screw, Carriage, 1/4-20, .75, Gr5

710-0726

Screw, Self-tapping, 5/16-12, 0.750

712-04063

Nut, Flange Lock, 5/16-18, Grf, Nylon

712-04064

Nut, Flange Lock, 1/4-20, Grf, Nylon

712-04065

Nut, Flange Lock, 3/8-16, Grf, Nylon

714-0149B

Internal Cotter Pin

725-0157

Cable, Tie, 3/16 x .05 x 7.4

726-04012

Nut, Push-on, .25 Diameter

731-04705

Chute, Adapter 5” Diameter

732-0611

Spring, Extension, .38 OD x 3.6

736-0174

Washer, Wave, .625 x.885 x.015

731-2635 Mount, Clean Out Tool

738-0143

Screw, Shoulder, .498 x .340, 3/8-16

738-0281

Screw, Shoulder, .625 x .170, 3/8-16

738-04124

Pin, Shear, .25 x 1.50, Gr2

741-0245

Bearing, Hex Flange x .75 ID

741-0309

Bearing, Ball, .75 ID x 1.85 OD

756-0981A

Idler Pulley, Flat 2.75 OD

790-00075

Housing, Bearing, 1.85 ID

790-00080

Bracket, Auger Idler w/ Brake

618-04170

Gearbox Assembly, Auger, 22”

618-04171

Gearbox Assembly, Auger, 24”

618-04172

Gearbox Assembly, Auger, 26”

618-04173

Gearbox Assembly, Auger, 28”

684-04067

Housing Assembly, Auger 22”

684-04069

Housing Assembly, Auger 24”

684-04071

Housing Assembly, Auger 26”

684-04073

Housing Assembly, Auger 28”

684-04107

Spiral Assembly, LH

684-04108

Spiral Assembly, RH

714-04040

Bow-Tie Cotter Pin

731-04870*

Spacer, 1.25 OD x .75 ID x 1.00

736-0188

Washer, Flat, .76 x 1.49 x .06

738-04124

Shear Pin, .25 x 1.50, Gr2

741-0493A

Bushing, Flange, .800 ID x .910 OD

790-00087

Housing, Bearing, 1” Hex

790-00117

Plate, Shave, 2.25 x 21.66

790-00120

Plate, Shave, 2.25 x 23.66

790-00121

Plate, Shave, 2.25 x 25.66

790-00118

Plate, Shave, 2.25 x 27.66

710-04071

Bolt, Carriage, 5/16-18, 1.0

720-04032

Knob Assembly

731-04426A

Chute, Upper, w/ Domestic Label

731-04869

Chute, Keeper Flange

731-04912

Chute, Lower, 5.0 Diameter

736-0159

Washer.349 ID x .879 OD x .063

741-0475

Bushing, Plastic, .380

784-5647

Bracket, Chute Crank

784-5580

Shoe, Slide

719-0319

Housing, Auger, RH Reduced

719-0320

Housing, Auger, LH Reduced

721-0179

Seal, Oil, .750 ID

741-0662

Bearing, Flange, .75 ID x 1.00 OD x .59

710-0642

Screw, Self-tapping, 1/4-20, 0.750

711-04286

Axle, Auger, 22"

711-04285

Axle, Auger, 24"

711-04284

Axle, Auger, 26"

711-04283

Axle, Auger, 28"

714-0161

Key, Hi-pro 3/16 x 5/8

715-04021

Pin, Dowel, .25 OD x 1.2

717-04126

Shaft, Worm .75 OD

717-0528A

Gear, Worm 20T

718-04071

Collar, Thrust

721-0325

Plug, 1/4 x .437

721-0327

Seal, Oil, .75 x 1 x .131

736-0351

Washer, Flat, .760 ID x 1.5 OD

736-3084

Washer, Flat, .51 x 1.12

741-0663

Bearing, Flange, .75 ID x 1.00 OD x .925

746-0897

Auger Clutch Cable, 44.75”

741-0661A

Bearing, Flange, .75 ID x 1.00 OD x .975

629-0071

Cord, Extension

710-0726

Bolt, Carriage, 5/16-18, 1.0 Gr1

REF.

NO.

PART

NO.

DESCRIPTION

* None found between spirals on models with 22-inch auger housing.

* One found between spirals on models with 24-inch auger housing.

* Two found between spirals on models with 26-inch auger housing.

* Three found between spirals on models with 28-inch auger housing.

NOTE:

Snow thrower features and components vary by model. NOT all parts listed above and pictured on the previous page
are standard equipment.

Summary of Contents for 737-0168

Page 1: ...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 available through your nearest engine authorized service dealer or c...

Page 2: ...of this unit you can seek help 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 To reach a Customer Support Representative please call 1 800 800 7310 The engine manufacturer is responsible for all engine...

Page 3: ...which could be tripped over or thrown by the auger impeller 2 Always wear safety glasses or eye shields during operation and while performing an adjustment or repair to protect your eyes Thrown objects which ricochet can cause serious injury to the eyes 3 Do not operate without wearing adequate winter outer garments Do not wear jewelry long scarves or other loose clothing which could become entang...

Page 4: ...stments or inspections 18 Never put your hand in the discharge or collector openings Always use the clean out tool provided to unclog the discharge opening Do not unclog chute assembly while engine is running Shut off engine and remain behind handles until all moving parts have stopped before unclogging 19 Use only attachments and accessories approved by the manufacturer e g wheel weights tire cha...

Page 5: ...s Engine Modification EM and Three Way Catalyst TWC if so equipped SAFETY LABELS FOUND ON YOUR SNOW THROWER DANGER NEVER PUT HAND IN CHUTE CONTACT WITH ROTATING PARTS CAN AMPUTATE FINGERS AND HANDS SHUT OFF ENGINE AND WAIT UNTIL ALL MOVING PARTS HAVE STOPPED BEFORE UNCLOGGING USE CLEAN OUT TOOL OR WOODEN STICK TO UNCLOG DISCHARGE CHUTE KEEP AWAY FROM ROTATING IMPELLER AND AUGER CONTACT WITH IMPELL...

Page 6: ...cluded with this manual Refer to Augers on page 19 for more information regarding shear pin replacement CAUTION Prior to operating your snow thrower refer to Auger Control Test on page 11 Read and follow all instructions carefully and perform all adjustments to verify your snow thrower is operating safely and properly Securing the Handle 1 Observe the lower rear area of the snow thrower to be sure...

Page 7: ...o the lower bracket and secure with the flat washer and hairpin clip just removed NOTE If necessary the lower bracket can be adjusted Refer to Chute Bracket Adjustment on Page 13 CAUTION Prior to operating your snow thrower refer to Auger Control Test on page 11 Read and follow all instructions carefully and perform all adjustments to verify your snow thrower is operating safely and properly Tire ...

Page 8: ... the faster Gas Cap Unthread the gas cap to add gasoline to the fuel tank Choke Control The choke control is found on the rear of the engine and is activated by rotating the knob clockwise Activating the choke control closes the choke plate on the carburetor and aids in starting the engine Throttle Control The throttle control is located on the engine It regulates the speed of the engine and will ...

Page 9: ...ore unclogging The chute clean out tool is fastened to the top of the auger housing with a mounting clip The tool is designed to clear a clogged chute assembly Refer to Operating Your Snow Thrower section for more detailed information regarding the chute clean out tool NOTE This item is fastened with a cable tie to the rear of the auger housing at the factory Cut the cable tie before operating the...

Page 10: ...eceptacle at all times to avoid the possibility of electric shock Follow all instructions carefully prior to operating the electric starter WARNING If your home electrical system is grounded but a three hole receptacle is not available do not use your snow thrower s electric starter If you have a grounded three prong receptacle proceed as follows Plug the extension cord into the outlet located on ...

Page 11: ... six forward F positions or two reverse R positions Select a speed appropriate for the snow conditions and a pace you re comfortable with IMPORTANT Use the slower speeds until you are comfortable and familiar with the operation of the snow thrower Squeeze the drive control against the handle the snow thrower will move Release it and drive motion will stop IMPORTANT NEVER reposition the shift lever...

Page 12: ...r any remaining snow and ice from the chute assembly Drift Cutters on models so equipped Drift cutters should be used when operating the snow thrower in heavy drift conditions On models so equipped drift cutters are assembled to the auger housing inverted Remove the carriage bolts by unthreading the hex nuts which secure them and reinstall the drift cutters in their proper position before operatin...

Page 13: ...e Figure 3 Retighten the hex jam nut and repeat all three tests to verify proper adjustment has been achieved Skid Shoes The space between the skid shoes and the ground can be adjusted See Figure 4 For close snow removal on a smooth surface raise skid shoes higher on the auger housing Use a middle or lower position when the area to be cleared is uneven such as a gravel driveway CAUTION Loose grave...

Page 14: ...er Control Refer to Auger Control Test on Page 11 to adjust the auger control Chute Assembly The distance snow is thrown can be adjusted by changing the angle of the chute assembly To do so stop the engine by removing the ignition key and loosen the plastic wing knob found on the left side of the chute assembly Pivot the chute upward or downward before re tightening the wing knob See Figure 6 Figu...

Page 15: ...least once a season remove the shear pins on auger shaft Spray lubricant inside shaft around the spacers Also lubricate the flange bearings found at either end of the shaft See Figure 8 Figure 8 Gear Case The auger gear case has been filled with grease at the factory If disassembled for any reason lubricate with two ounces of grease Part Number 737 0168 IMPORTANT Do not overfill the gear case Dama...

Page 16: ...orward so that it rests on the auger housing 2 Remove the frame cover from the underside of the snow thrower by removing four self tapping screws which secure it 3 Roll the auger belt off the engine pulley 4 Unhook the support bracket spring from the frame Loosen and remove the shoulder screw which acts as a belt keeper Remove the belt from around the auger pulley and slip the belt between the sup...

Page 17: ...he gas cap Carefully pivot the snow thrower up and forward so that it rests on the auger housing 2 Remove the frame cover from the underside of the snow thrower by removing four self tapping screws which secure it 3 a Grasp the idler pulley and pivot it toward the right b Insert a screw driver through aligning holes in both the idler bracket and the engine c Roll the auger belt off the engine pull...

Page 18: ...rame and lightly tap the shaft s end to dislodge the ball bearing from the right side of the frame 2 a Slide the hex shaft downward and to the left while carefully un meshing the lower gears on the hex shaft from the upper gears on the wheel axle b Set the hex shaft s gears aside c Carefully remove the inner E ring from the hex shaft and slide the friction wheel assembly off the hex shaft NOTE If ...

Page 19: ...tion prior to draining fuel Fuel left in engine for extended period deteriorates and will cause serious starting problems If unit is to be stored over 30 days prepare for storage as follows Remove gasoline from carburetor and fuel tank to prevent gum deposits from forming on these parts and causing possible malfunction of engine Run engine until fuel tank is empty and engine stops due to lack of f...

Page 20: ... stabilizer is used Drain fuel tank Refill with fresh fuel Refer to the Tecumseh engine manual Loss of power Spark plug wire loose Gas cap vent hole plugged Exhaust port plugged Connect and tighten spark plug wire Remove ice and snow from cap Be certain vent hole is clear Clean following the engine manual Engine overheats Carburetor not adjusted properly Refer to the Tecumseh engine manual packed ...

Page 21: ...21 NOTES ...

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

Page 23: ...W 23 725 1672 Lens Assembly Lamp 24 725 04220 Harness Headlight 25 747 04263 Eye Bolt Chute Crank 26 790 00100 Panel Handle C Style 790 00101 Panel Handle w Cutout D Style 27 684 04104 Crank Assembly Chute 28 710 0449 Screw Carriage 5 16 18 2 25 Gr5 29 712 04081A Shoulder Nut Hex 1 4 20 30 720 0284 Knob Assembly Wing Nut 5 16 18 31 720 0201A Crank Knob 1 0 Diameter x 3 2 Black 32 726 0100 Cap Push...

Page 24: ...7 27 50 46 49 52 59 56 60 33 29 33 28 28 51 45 30 31 34 32 53 57 48 55 2 7 35 4 4 8 44 8 6 21 23 12 7 14 18 61 15 24 3 22 9 38 40 4 36 1 16 5 13 26 37 41 8 6 8 43 41 64 42 25 62 54 58 47 9 17 63 Styles C D ...

Page 25: ...ing Flange 800 ID x 910 OD 34 790 00087 Housing Bearing 1 Hex 35 790 00117 Plate Shave 2 25 x 21 66 790 00120 Plate Shave 2 25 x 23 66 790 00121 Plate Shave 2 25 x 25 66 790 00118 Plate Shave 2 25 x 27 66 36 710 04071 Bolt Carriage 5 16 18 1 0 37 720 04032 Knob Assembly 38 731 04426A Chute Upper w Domestic Label 39 731 04869 Chute Keeper Flange 40 731 04912 Chute Lower 5 0 Diameter 41 736 0159 Was...

Page 26: ... 48 56 58 7 52 7 46 49 59 44 43 54 50 17 41 55 58 42 36 32 35 34 9 28 19 18 30 20 24 7 29 13 33 23 11 5 22 3 24 15 21 24 6 1 16 12 14 2 14 10 4 38 9 9 28 31 9 37 8 20 25 7 26 27 39 9 4 65 61 63 62 64 60 45 9 Styles C D ...

Page 27: ...x 3 00 731 04877 Spacer 1 25 OD x 75 ID x 1 50 27 738 04095A Axle 75 x 22 28 738 0924 Screw 1 4 28 x 375 29 741 0563 Bearing Ball 17 x 40 x 12 30 741 0245 Bearing Hex Flange x 75 ID 31 746 0897 Cable Auger 44 75 32 746 04086 Cable Drive 41 75 Found on models with a 22 inch auger housing only 33 748 0190 Spacer 508 ID x 75 OD x 68 34 756 0625 Roller Cable 35 784 5687A Guide Bracket Auger Cable 36 7...

Page 28: ...djustments 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 p...

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