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OPERATOR'S MANUAL
IMPORTANT: READ SAFETY RULES AND INSTRUCTIONS CAREFULLY
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 361131 Cleveland, Ohio 44136-0019.
MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019
PRINTED IN U.S.A.
33" Snow Thrower
Model 31AE993I401
FORM NO.
770-10278C.fm
(6/2002)
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Summary of Contents for Yard-Man 31AE993I401
- Page 1 OPERATOR’S MANUAL 33” Snow Thrower Model 31AE993I401 IMPORTANT: READ SAFETY RULES AND INSTRUCTIONS CAREFULLY 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).
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Page 2: Table Of Contents
TABLE OF CONTENTS Content......................Page Important Safe Operation Practices..............3 Assembling Your Snow Thrower ............... 5 Knowing Your Snow Thrower ................6 Operating Your Snow Thrower ................8 Making Adjustments ..................10 Maintaining Your Snow Thrower................ 13 Servicing Your Snow Thrower ................14 Trouble Shooting Guide.................. -
Page 3: Important Safe Operation Practices
SECTION 1: IMPORTANT SAFE OPERATION PRACTICES This symbol points out important safety instructions, which if not followed, could endanger the personal safety and/or property of yourself and others. Read and follow all instructions in this manual before attempting to operate this machine. Failure to comply with these instructions may result in personal injury. -
Page 4: Maintenance And Storage
Never operate with a missing or damaged discharge Contact your dealer or telephone 1-800-800-7310 for chute. Keep all safety devices in place and working. assistance and the name of your nearest servicing Never run an engine indoors or in a poorly ventilated dealer. -
Page 5: Assembling Your Snow Thrower
SECTION 2: ASSEMBLING YOUR SNOW THROWER NOTE: All references to right or left side of the snow thrower are determined from behind the unit in the operating position. The “operator’s position” is defined Upper Handle as standing directly behind the snow thrower, facing the handle panel. -
Page 6: Knowing Your Snow Thrower
NOTE: If the connector is not properly assembled, the shift rod will pivot and you will not be able to change Discharge Chute speeds or change directions. Cable Guide Attaching Chute Directional Control • Remove the hairpin clip from the upper chute crank and slide the upper chute crank through the upper chute crank bracket and into the lower chute crank. - Page 7 simultaneously with the traction control, the operator Chute Directional Control can release the auger control (on the left handle) and The chute directional control is located on the left hand the augers will remain engaged. Release the traction side of the snow thrower. To change the direction in control to stop the augers and wheel drive (the auger which snow is thrown, turn the chute directional control control must also be released).
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Page 8: Operating Your Snow Thrower
SECTION 4: OPERATING YOUR SNOW THROWER Before Starting WARNING: electric starter equipped with a grounded three-wire power WARNING: cord and plug and is designed to operate on Read, understand, and follow 120 volt AC household current. It must be all instructions and warnings on the machine used with a properly grounded three-prong and in this manual before operating. - Page 9 • To help prevent possible freeze-up of starter, 1. Release both the Auger Control Lever and the proceed as follows. Traction/Auger control Lock Lever. 2. Stop the engine by removing the ignition key. Electric Starter: 3. Remove the clean-out tool from the clip which •...
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Page 10: Making Adjustments
• To readjust the control cable, unhook the spring • Thread the lock nut outward (down the coupler) (found on the end of the auger cable) from the three full turns to provide more slack in the cable auger actuator bracket. See Figure 8. and reattach the spring to the bracket. - Page 11 Skid Shoe Adjustment • Check the adjustment of the traction control as instructed earlier. Repeat the previous steps to The space between the shave plate and the ground can provide more slack in the cable, in necessary. be adjusted by repositioning the skid shoes. For close If you are uncertain that you have reached the correct snow removal, as when using on a smooth concrete or adjustment, proceed as follows:...
- Page 12 Shift Rod Auger Control Adjustment If your snow thrower is not achieving its full range of Refer to Auger Control Test on page 9 to adjust the speeds, the shift rod is in need of adjustment. To auger control. Make certain to check for correct adjustment.
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Page 13: Maintaining Your Snow Thrower
SECTION 6: MAINTAINING YOUR SNOW THROWER WARNING: Before lubricating, repairing, or Vent Plug inspecting, disengage all clutch levers and stop engine. Wait until all moving parts have come to a complete stop. Disconnect the Shear Bolts spark plug wire and ground it against the engine to prevent unintended starting. -
Page 14: Servicing Your Snow Thrower
Auger Bearings and Shaft Check V-Belts Every season lubricate the auger bearings and the Follow the instructions below to check the condition of bearings on the side of the frame with light oil. See to the drive belts every 50 hours of operation. Figure 13. -
Page 15: Replacing Belts
Shear Bolts Flat Belt Cover Bolts(3) Hairpin Belt Cover Washers Clip Washer Carriage Bolt Shave Plate Hex Nut Upper Bolt Figure 16 (remove) Shoulder Bolt • Remove the six carriage bolts (three per side), (do not remove) belleville washers and hex nuts which attach skid shoes to the snow thrower on two sides. -
Page 16: Changing Friction Wheel Rubber
• Pull the brake bracket assembly towards the cable • Reassemble the two halves of the unit hooking the guide roller and unhook the auger cable “Z” fitting. lower portion of the auger housing over the • Remove the upper bolts and lock washers which stationary shoulder bolts in the frame assembly. - Page 17 • Remove the four screws from both sides of the • Secure with the bell washer and hex bolt removed friction wheel assembly and remove friction wheel earlier. rubber from between the friction wheel plate. • Secure the frame cover with six self-tapping See Figure 21.
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Page 18: Trouble Shooting Guide
SECTION 8: TROUBLESHOOTING Problem Cause Remedy Engine fails to start. 1. Fuel tank empty, or stale fuel. 1. Fill tank with fresh gasoline. 2. Blocked fuel line. 2. Clean the fuel line. 3. Choke not in ON position 3. Move switch to ON position 4. -
Page 19: Parts List
Model E993I Ref. Part No. Description 618-0246 Housing Assembly, RH 618-0247 Housing Assembly, LH 710-1260A Screw, 5/16-18 x 0.75 711-0908A Axle, Auger 711-1133 Shaft, Auger Drive 714-0126 Key, Hi Pro, 3/16 x 3/4 714-0135 #91 Woodruff Key 1/4 x 3/4 716-0111 Snap Ring .875 Dia. - Page 20 Model E993I 34 26...
- Page 21 For instance, if a part numbered 700-0000 is painted Yard-Man Green, the part number to order would be 700-0000-0665. Yard-Man Green: 0665 Yard-Man Yellow: 0674 Powder Black: 0637...
- Page 22 Model E993I 27 75...
- Page 23 Model E993I Ref. Ref. Part No. Part Description Part No. Part Description 05523 Pivot Support Bracket 736-0158 Lock Washer 5/8 750-1302A Spacer, .6725 x 1.125 x 2.485 736-0160 Flat Washer 618-0279 Dogg Assembly LH 736-0163 Flat Washer 618-0280 Dogg Assembly RH 736-0217 Lock Washer 618-0282D...
- Page 24 Model E993I 22 11 21 13...
- Page 25 For instance, if a part numbered 700-0000 is painted Yard-Man Green, the part number to order would be 700-0000-0665. Yard-Man Green: 0665 Yard-Man Yellow: 0674 Powder Black: 0637...
- Page 26 Model E993I 6 15 Ref. Part No. Description 07386 Washer 684-0123A Belt Cover Bracket Assembly 710-0191 Hex Screw 3/8-24 x 1.25” 710-0237 Hex Screw 5/16-24 x .625” 710-0502A TT Sems Screw 710-0607 TT Screw 5/16-18 x 0.5” 710-1245A Hex Lock Screw 5/16-24 x .875” 712-0116 Jam Nut 714-0118...
- Page 27 Model E993I Ref. Part No. Description 710-0276 Carriage Screw 710-0458 Carriage Bolt 5/16-18 x 1.75” 710-0805 Hex Bolt 5/16-18 x 1.5” 710-0896 Hex AB Screw 1/4-14 x .625” 710-3015 Hex Screw 1/4-20 x .75” 712-0429 Hex Lock Nut 712-3027 Hex Flange Lock Nut 731-0846C Upper Chute 731-0851A...
- Page 28 MANUFACTURER’S LIMITED WARRANTY FOR: The limited warranty set forth below is given by MTD LLC with MTD LLC does not extend any warranty for products respect to new merchandise purchased and used in the sold or exported outside of the United States, its United States, its possessions and territories.