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Operator's Manual
Snow Thrower
Models E643E
E663H
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.
FORM NO. 770-10020E.fm
(6/2003)
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Table of Contents
Related Manuals for Yard-Man E663H
Summary of Contents for Yard-Man E663H
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Page 1: Snow Thrower
Operator’s Manual Snow Thrower Models E643E E663H 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). -
Page 2: Table Of Contents
TABLE OF CONTENTS Content Page Important Safe Operation Practices ................ 3 Loose Parts ......................5 Assembling Your Snow Thrower ................5 Know Your Snow Thrower..................7 Operating Your Snow Thrower ................8 Making Adjustments ....................11 Maintaining Your Snow Thrower ................13 Service ........................ -
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 assistance and the name of your nearest servicing chute. Keep all safety devices in place and working. dealer. Never run an engine indoors or in a poorly ventilated MAINTENANCE AND STORAGE area. Engine exhaust contains carbon monoxide, an odorless and deadly gas. -
Page 5: Loose Parts
SECTION 2: LOOSE PARTS The snow thrower is shipped with following loose parts in the carton. Please remove all loose parts from the carton before discarding it. See Figure 1 to identify the parts noting that these parts may be referred to again in the following sections of this manual. -
Page 6: Final Adjustments
Attaching Chute Directional Control Chute Clean-Out Tool • This tool is fastened with a cable tie to the rear of For packaging purposes, the two-piece chute the auger housing for shipping purposes. Cut the directional control was attached to the snow thrower on cable tie and remove tool before operating the the two ends, but was kept loose at the middle. -
Page 7: Know Your Snow Thrower
SECTION 4: KNOW YOUR SNOW THROWER WARNING: Always release tractional control before IMPORTANT: Be familiar with all the controls changing speeds. on the snow thrower and their proper operation. Know how to stop the machine and Chute Tilt Control disengage them quickly. The distance snow is thrown can be varied by adjusting the pitch of the chute assembly. -
Page 8: Operating Your Snow Thrower
Chute Tilt Traction/Auger Shift Lever Control Control Lock Fuel Shut-Off Valve (If So Equipped) Closed Auger Control Open Discharge Chute Chute Chute Directional Clean-Out Tool Control Primer Choke Rope Ignition Key Starter Throttle Control Handle Auger Figure 6 SECTION 5: OPERATING YOUR SNOW THROWER Before Starting the boot) is fastened securely over the metal tip on the spark plug. - Page 9 • If your home electrical system is grounded, but a starter will not harm engine or starter. Disconnect three-hole receptacle is not available, one should the power cord from receptacle first, and then from be installed by a licensed electrician before using snow thrower’s switch box.
- Page 10 • In a well-ventilated area, start the snow thrower • Remove the clean-out tool from the clip which engine as instructed earlier in this section under the secures it to the rear of the auger housing. heading Starting Engine. Make sure the throttle is set •...
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Page 11: Making Adjustments
Operating Tips • Set the skid shoes 1/4" below the shave plate for normal usage. The skid shoes may be adjusted upward (to lower the shave plate) for hard-packed NOTE: Allow the engine to warm up for a few minutes snow. -
Page 12: Shift Rod Adjustment
Shift Rod Adjustment • Adjust skid shoes by loosening the four hex nuts and carriage bolts and moving skid shoes to To adjust the shift rod, proceed as follows. desired position. Make certain the entire bottom • Remove the hairpin clip and slide the connector up surface of skid shoe is against the ground to avoid to separate the upper shift rod from the lower shift uneven wear on the skid shoes. -
Page 13: Maintaining Your Snow Thrower
SECTION 7: MAINTAINING YOUR SNOW THROWER Lubrication Drive and Shifting Mechanism At least once a season or after every 25 hours of WARNING: operation, remove rear cover. Lubricate any chains, Before lubricating, repairing, or sprockets, gears, bearings, shafts, and shifting inspecting, disengage all clutch levers and mechanism at least once a season. -
Page 14: Belt Removal And Replacement
Shave Plate and Skid Shoes • Back out the stop bolt until the support bracket rests on the auger pulley. See Figure 18. The shave plate and skid shoes on the bottom of the NOTE: snow thrower are subject to wear. They should be Loosening the six nuts that connect the frame checked periodically and replaced when necessary. - Page 15 • Slip belt between friction wheel and friction wheel • Remove six self-tapping screws from the frame disc. See Figure 18. Remove and replace belt. cover underneath the snow thrower. • Remove the click pins which secure the wheels, and remove the wheels from the axle. Friction •...
- Page 16 Off-season Storage • Drain carburetor by pressing upward on bowl drain, located below the carburetor cover. • Remove all dirt from exterior of engine and WARNING: Never store the machine or equipment. fuel container indoors where there is an open •...
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Page 17: Troubleshooting
SECTION 9: TROUBLESHOOTING Problem Cause Remedy Engine fails to start 1. Fuel tank empty, or stale fuel present in gas 1. Fill tank with clean, fresh gasoline. tank. Fuel becomes stale after thirty days unless a fuel stabilizer is used. 2. -
Page 18: Parts List
SECTION 10: MODEL E663H & E643E PARTS LIST Drive Clutch Cable Auger Clutch Cable Auger Clutch Cable * Add a second washer here, if needed, to reduce axle play. - Page 19 Wheel Assembly (E643E) 741-0401 Sleeve Bearing, .75 x .87 x 1 714-0126 717-04094 7-Tooth Shaft 734-1525 Tire Only, 16 x 6.5 x 8 (E663H) 715-0249 Roll Pin 734-1859 Tire Only, 15 x 5 x 6 (E643E) 716-0102 Snap Ring 714-0143...
- Page 20 Models E663H & E643E...
- Page 21 Models E663H & E643E Ref. Ref. Part No. Part Description Part No. Part Description 712-0116 Lock Jam Nut 3/8-24 710-0703 Carriage Screw 1/4-20 x .75 756-0178 Flat Idler, 2.75 w/o Flanges 710-0726 Hex Screw 5/16-18 x .75 784-5632B Auger Idler Arm...
- Page 22 Models E663H & E643E...
- Page 23 Models E663H & E643E Ref. Part No. Part Description 710-1652 Hex Washer Screw 1/4-20 x.625 731-1324 Belt Cover 732-0710 Extension Spring 710-0627 Hex Screw 5/16-24 x .75 710-3005 Hex Cap Screw 3/8-16 x 1.25 05896A Drive Clutch Bracket 748-0234 Shoulder Spacer...
- Page 24 Models E663H & E643E 41 42 (for ground wire of light ass’y)
- Page 25 Models E663H & E643E Ref. Ref. Part No. Part Description Part No. Part Description 684-0008A Shift Arm Assembly 736-0105 Bell Washer, .401 x .87 x .063 684-0053B Lower Chute Crank Assembly 736-0119 Lock Washer, 5/16 736-0509 Special Washer, .35 x .72 x .13 714-0507 Cotter Pin, 3/32 x .75...
- Page 26 Flat Washer, .76 x 1.5 x .060 741-0662 Flange Bearing, .75 x 1.0 x .59 741-0663 Flange Bearing, .503 ID x .75 OD 618-0160A Gear Assembly Complete, 30” (E663H) 618-0120A Gear Assembly Complete, 24” (E643E) — 737-0168A Grease (1-½ oz.)
- Page 27 NOTES...
- 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.