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45” Snow Thrower

Model 31AE993J401

OPERATOR’S MANUAL

PRINTED IN U.S.A.

FORM NO. 

770-10541.fm

(6/2001)

IMPORTANT: READ SAFETY RULES AND INSTRUCTIONS CAREFULLY

MTD PRODUCTS INC. P.O. BOX 368022 CLEVELAND, OHIO 44136-9722

Warning: 

This unit is equipped with an internal combustion engine and should not be used on or near any unimproved forest-

covered, brush-covered or grass-covered land unless the engine’s exhaust system 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 available through your nearest engine authorized 
service dealer or contact the service department, P.O. Box 368022 Cleveland, Ohio 44136-9722.

Summary of Contents for 31AE993J401

Page 1: ...land unless the engine s exhaust system 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 b...

Page 2: ...mer Support Department You can locate the model number by looking at the lower frame cover on the rear of your snow thrower A sample model plate is explained below For future reference please copy the...

Page 3: ...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 a...

Page 4: ...s etc 20 If situations occur which are not covered in this manual use care and good judgment Contact your dealer or telephone 1 800 528 1009 for assistance and the name of your nearest servicing deale...

Page 5: ...snow thrower s warranty Assembling Handle WARNING Disconnect the spark plug wire and ground it against the engine to prevent unintended starting IMPORTANT Make any final adjustments as instructed lat...

Page 6: ...control and shift lever proceed as follows Move the shift lever into sixth 6 position With the traction control released push the snow thrower forward then pull it back The machine should move freely...

Page 7: ...er 30 psi when seating beads may cause tire rim assembly to burst with force sufficient to cause serious injury SECTION 3 KNOWING YOUR SNOW THROWER WARNING Read understand and follow all instructions...

Page 8: ...Control The distance snow is thrown can be changed by adjusting the angle of the chute assembly Move the chute tilt control forward to decrease the distance toward the rear to increase See Figure 9 D...

Page 9: ...er cord and plug and is designed to operate on 120 volt AC household current It must be used with a properly grounded three prong receptacle at all times to avoid the possibility of electric shock Fol...

Page 10: ...the augers and start the snow throwing action proceed as follows Squeeze the auger control against the left handle To disengage power to the augers Release both the auger control and the traction cont...

Page 11: ...chute assembly Refer to the Know Your Snow Thrower section The remote chute control cables have been pre adjusted at the factory Move the remote chute lever on the control panel back and forward to ad...

Page 12: ...ast every 25 hours of use Apply the lubricant under the base of the chute and where the spirals contact the discharge chute See Figure 13 Figure 13 Drive and Shifting Mechanism At least once a season...

Page 13: ...ast once a season or every 25 hours of operation using a multi purpose automotive grease The cams can be accessed beneath the handle panel See Figure 14 Figure 14 SECTION 7 SERVICING YOUR SNOW THROWER...

Page 14: ...See Figure 17 Slip the auger control belt the front belt off the engine pulley Pull the brake bracket assembly towards the cable guide roller and unhook the auger cable Z fitting Figure 17 Remove the...

Page 15: ...crank Changing Friction Wheel Rubber The rubber on the friction wheel is subject to wear and should be checked after the first 25 hours of operation and periodically thereafter Replace the friction w...

Page 16: ...hub of the sprocket toward the friction wheel when sliding the sprocket on to the hex shaft See Figure 21 Figure 21 Secure with the bell washer and hex bolt removed earlier Secure the frame cover with...

Page 17: ...3 Exhaust port plugged 1 Connect and tighten spark plug wire 2 Remove ice and snow from gas cap Be certain vent hole is clear 3 Refer to the engine manual Engine overheats 1 Carburetor not adjusted pr...

Page 18: ...4 25 49 52 50 51 53 54 55 56 57 58 Model 31AE993J401 NOTE For painted parts please refer to the list of color codes below Please add the applicable color code wherever needed to the part number to ord...

Page 19: ...Beleville Washer 26 736 0250 Flat Washer 27 736 0271 Spring Washer 28 736 3008 Flat Washer 29 737 0318 Grease 30 738 0281 Shoulder Screw 31 741 0185 Self Aligning Bearing 32 741 0192 Flange Bearing w...

Page 20: ...55 62 27 50 26 51 66 42 3 63 60 33 55 47 30 65 1 16 56 47 19 31 15 48 61 26 50 62 55 53 69 41 77 78 78 80 80 79 79 NOTE For painted parts please refer to the list of color codes below Please add the...

Page 21: ...413 Sprocket 35 714 0101 Hairpin Clip 36 714 0104 Hairpin Clip 37 714 0115 Cotter Pin 38 714 0388 Key 39 715 0249 Roll Pin 40 717 0302 Drive Plate 41 732 0121 Extension Spring 42 732 0209 Extension Sp...

Page 22: ...5 35 36 37 38 39 40 41 42 43 44 NOTE For painted parts please refer to the list of color codes below Please add the applicable color code wherever needed to the part number to order a replacement part...

Page 23: ...24 741 0475 Plastic Bushing 25 747 0624 Chute Crank 26 747 0983 Lower Shift Rod 27 747 0997 Upper Shift Rod 28 749 0989A Upper Handle LH 29 749 0990A Upper Handle RH 30 749 0991 Lower Handle 31 750 09...

Page 24: ...31 Belt Cover 11 732 0303 Extension Spring 12 736 0159 5 16 Washer 13 736 0217 Lock Washer 14 736 0242 Beleville Washer 15 736 0264 Flat Washer 16 737 3007 Grease 17 738 0215A Shoulder Screw 18 748 02...

Page 25: ...Cable w Clip 18 784 5594 Cable Bracket 19 784 5604 Chute Tilt Handle 20 684 0102 Handle Panel Assembly w Tilt 21 710 0459A Hex Bolt 3 8 24 x 1 5 22 710 0599 TT Screw 1 4 20 x 0 5 23 711 0653 Clevis P...

Page 26: ...26 Notes...

Page 27: ...27...

Page 28: ...ty on these items b Log splitter pumps valves and cylinders have a sepa rate one year warranty c Routine maintenance items such as lubricants filters blade sharpening and tune ups or adjustments such...

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