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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 St
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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
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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. When you see this symbol—heed its warning. WARNING: Engine Exhaust, some of its constituents, and certain vehicle components contain o
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4. 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. 5. Never run an engine indoors or in a poorly ventilated area. Engine exhaust contains carbon monoxide, an MAINTENANCE AND STORAGE odorless and deadly gas. 1. Never tamper with safety devices. Check their proper 6. Do not operate machine while under the influence of operation regularly. Refer to the maintenance and alcohol or d
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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. Part numbers are shown in parentheses. AUGER SHEAR BOLTS Shear Bolts The augers are secured to the auger shaft with two shear bolts and (710-0890A) hex lock nuts. If you hit a foreign object or ice jam, the s
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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. snow thrower. Assemble as follows: Remove the hairpin clip from the chute directional Final Adjustments control. Align holes on the up
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SECTION 4: KNOW YOUR SNOW THROWER IMPORTANT: Always release tractional control before WARNING: 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. Move the chute tilt Auger Control control forward to decrease the distance, or toward the The auger drive clutch is located on the lef
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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 the boot) is fastened securely over the metal tip on Before Starting the spark plug. Make certain the fuel cut-off valve, if your snow WARNING: Read, understand, and follow throwe
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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. the electric starter. Recoil Starter If you have a grounded three-prong receptacle, With engine running, pull starter rope with a rapid, proceed as follows: continuous full arm stroke three or four times.
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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 Use the shovel-shaped end of the clean-out tool to in the FAST position. dislodge and scoop any snow and ice which has While standing in the operator’s position (behind formed in and near the discharge chute. the snow thrower) engage th
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Set the skid shoes 1/4" below the shave plate for Operating Tips 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. Adjust downward (to raise the shave plate) as the engine will not develop full power until it reaches when using on gravel or crushed rock. operating temperature. Remove snow immediately after it falls. WARNING: Muffler, engine and surrounding Discharge snow downwind whe
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Adjust skid shoes by loosening the four hex nuts Shift Rod Adjustment 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. Retighten nuts and rod. See Figure 11. bolts securely. See Figure 12. Place shift lever in t
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SECTION 7: MAINTAINING YOUR SNOW THROWER Drive and Shifting Mechanism Lubrication At least once a season or after every 25 hours of WARNING: Before lubricating, repairing, or operation, remove rear cover. Lubricate any chains, sprockets, gears, bearings, shafts, and shifting inspecting, disengage all clutch levers and mechanism at least once a season. Use engine oil or a stop engine. Wait until all moving parts have spray lubricant. come to a complete stop. Disconnect spark plug wire an
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Back out the stop bolt until the support bracket Shave Plate and Skid Shoes rests on the auger pulley. See Figure 18. The shave plate and skid shoes on the bottom of the snow thrower are subject to wear. They should be NOTE: Loosening the six nuts that connect the frame checked periodically and replaced when necessary. To to the auger housing may aid in belt removal. remove the skid shoes, proceed as follows: Lift the auger belt from the auger pulley, and slip Remove the four carriage
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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 Wheel Using a 7/8" wrench to hold the shaft, loosen, but do not completely remove, the hex nut and bell Drive Plate washer on the left end of gear shaft. See Figure 18. Lightly tap the hex nut to dislodge the ball
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Drain carburetor by pressing upward on bowl drain, Off-season Storage 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 Remove spark plug and pour one ounce of engine flame, spark or pilot light such as on a water oil through spark plug hole into cylinder. Cover heater, furnace, clothes dryer or other gas spark plug hole with rag. Crank engine several applianc
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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. Blocked fuel line. 2. Clean the fuel line. 3. Choke not in ON position 3. Move switch to ON position 4. Faulty spark plug. 4. Clean, adjust gap or replace. 5. Safety key not in ignition switch on engine. 5. Insert the key fully into the switch. 6. Spark plu
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SECTION 10: MODEL E663H & E643E PARTS LIST 27 20 39 38 Drive Clutch Cable 37 Auger Clutch Cable 5 4 13 30 7 6 52 40 3 4 30 2 14 26 15 5 36 16 44 51 7 9 10 11* 25 31 12 28 23 41 17 8 18 4 32 24 1 22 1 33 21 20 42 29 5 8 34 Auger Clutch Cable 43 19 35 46 45 48 1 49 49 50 47 * Add a second washer here, if needed, to reduce axle play. 18
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Models E663H & E643E Ref. Ref. Part No. Part Description Part No. Part Description No. No. 1 710-1652 Self-tapping Screw, 1/4-20 x .625 29 684-0013B Wheel Shift Rod Assembly 2 784-5688 Drive Cable Guide Bracket 30 710-0599 Self-tapping Screw, 1/4-20 x .5 3 784-5687A Auger Clutch Cable Bracket 31 748-0190 Spacer 4 756-0625 Cable Roller 32 684-0021 Friction Wheel Bracket Assembly 5 738-0924 Hex Screw 1/4-28 33 732-0264 Extension Spring 6 784-5630B Frame Assembly 34 712-0711 Jam Nut 3/8-24 7 741
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Models E663H & E643E 2 1 3 4 44 5 43 11 10 9 15 18 6 14 12 7 8 13 9 18 19 20 16 22 23 21 27 10 13 34 28 25 23 18 13 38 26 31 35 22 30 18 32 31 33 16 41 36 37 17 39 40 29 24 40 42 39 20
