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Owner’s Manual ST 121E / 96183000100 Gasoline containing up to 10% ethanol (E10) is acceptable for use in this machine. The use of any gasoline exceeding 10% ethanol (E10) will void the product warranty. Please read the owner's manual carefully and make sure you understand the instructions before using the machine.
CONGRATULATIONS on your purchase of a new snow thrower. It has been designed, engineered and man u fac tured to give best possible dependability and per for mance. Should you experience any problem you cannot easily remedy, please contact your nearest authorized service center. We have competent, well-trained tech ni cians and the proper tools to service or repair this unit.
Operation Maintenance and Storage 1. Do not put hands or feet near or under rotating parts. 1. Check shear bolts and other bolts at frequent intervals Keep clear of the discharge opening at all times. for proper tightness to be sure the equipment is in safe working condition.
ASSEMBLY 4. Pull up and push down slightly on the handle to verify Setup handle is locked into place (Figure 4). NOTE: If handle feels unsecure with the adjustment LOOSE PARTS levers closed, tighten adjustment handle nuts until the Use the chart below to verify that all parts have been handle feels secure.
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ASSEMBLY Installing the Discharge Chute Filling the Engine with Oil 1. Install the chute deflector to the discharge chute using ENGINE two screws, washers, and deflector knob (Figure 6). See engine manual. 2. Install the discharge chute to the chute base using three screws and nuts.
OPERATION Operation IMPORTANT: Do not use E85 blended fuels. This engine is not E20/E30/E85 compatible. Alternative fuels with high alcohol content can cause hard starting, poor engine NOTE: Determine the left and right sides of the machine performance, and may cause internal engine damage. from the normal operating position.
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OPERATION Starting the Engine 1. Push key in (Figure 10). 2. Move choke lever to left position. 3. Firmly push in the primer 2 times with your thumb, holding the primer in a for a second before releasing it each time. NOTE: Remove your glove when you push in the primer so that air cannot escape from the primer hole.
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OPERATION Engaging the Auger Blades 1. To engage the auger blades, hold the control bar against the handle (Figure 13). Figure 15 1. Rub Area 2. Wear Areas Stopping the Engine Figure 13 1. Control bar 1. To stop the engine, pull key out (Figure 16). Disengaging the Auger Blades 1.
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OPERATION Preventing Freeze-up After Use 2. To raise or lower the angle of the chute deflector, loosen both chute deflector knobs on the chute deflector and move the chute deflector up or down to desired position • Let the engine run for a few minutes to prevent moving and retighten knobs (Figure 18).
MAINTENANCE Maintenance NOTE: Determine the left and right sides of the machine from the normal operating position. Check for Loose Fasteners Clean / Inspect Snow Thrower Clean / Replace V-Belts Check / Replace Auger Blades and Scraper Bar Check Fuel Lines and Electrical Wires Check Engine Oil Level Change Engine Oil Inspect Muffler...
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MAINTENANCE Inspecting the Auger Blades/ 5. After draining the used oil, return the snowthrower to the operating position. Scraper Bar 6. Install the oil drain plug and torque to 145-150 in-lbs Before each session, inspect the auger blades for wear. (17 N-m).
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MAINTENANCE 8. Unsnap top cover by firmly pulling upwards at the Servicing the Spark Plug rear section of the cover disengaging the three clips (Figure 28). Use a NGK BPR6ES, Champion RN9YC, or BOSCH 9. Shift top cover until fuel tank is clear of the rear upper WR6DC spark plug or equivalent.
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MAINTENANCE 19. Install the spark plug and torque it to 20–22 ft-lb 15. Disconnect the spark plug wire from the spark plug (27–30 N-m). (Figure 30). 20. Connect the spark plug wire to the spark plug 16. Clean around the spark plug. (Figure 30).
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MAINTENANCE 4. Install the new auger v-belt and drive pulley, routing it Replacing the Auger V-Belt as shown in (Figure 34). NOTE: Route the new auger v-belt first around the engine If auger v-belt becomes worn, oil-soaked, excessively pulley, then the idler pulley, and finally around the drive cracked, frayed, or otherwise damaged, replace the belt.
STORAGE Storage ENGINE OIL Drain oil (with engine warm) and replace with clean engine oil. (See “Changing the Engine Oil” section of this man ual). STORING THE SNOWTHROWER Immediately prepare your snow thrower for storage at CYLINDER the end of the season or if the unit will not be used for 30 1.
TROUBLESHOOTING Troubleshooting See appropriate section in manual unless directed to a service center/department. PROBLEM CAUSE CORRECTION Does not start 1. Safety ignition key is not inserted. 1. Insert safety ignition key. 2. Out of fuel. 2. Fill fuel tank with fresh, clean gasoline. 3.
REPAIR PARTS SNOW THROWER - - MODEL NUMBER ST 121E (96183000100) HANDLE ASSEMBLY NOTE: All component dimensions given in U.S. inches. 1 inch = 25.4 mm IMPORTANT: Use only Original Equipment Manufacturer (O.E.M.) replacement parts. Failure to do so could be hazardous, damage your snow thrower and void your warranty.
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REPAIR PARTS SNOW THROWER - - MODEL NUMBER ST 121E (96183000100) HANDLE ASSEMBLY PART DESCRIPTION 532 44 32-45 SUBASM.CONTROL.SHROUD 532 44 16-24 COVER.HANDLE.LG.SHROUD 532 44 33-18 BRACKET.SUPPORT - DCC - STAMP - BLK 532 44 27-75 SUBASM.RH.LED 532 44 27-76 SUBASM.LH.LED...
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REPAIR PARTS SNOW THROWER - - MODEL NUMBER ST 121E (96183000100) CHUTE ASSEMBLY NOTE: All component dimensions given in U.S. inches. 1 inch = 25.4 mm IMPORTANT: Use only Original Equipment Manufacturer (O.E.M.) replacement parts. Failure to do so could be hazardous, damage your snow thrower and void your warranty.
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REPAIR PARTS SNOW THROWER - - MODEL NUMBER ST 121E (96183000100) CHUTE ASSEMBLY PART DESCRIPTION 817 41 13-12 BOLT.HEX.WSH.HD.13-16 X 3/4 532 44 34-25 PLENUM.MS498 819 13 13-16 WASHER 532 42 88-67 BOLT 872 01 05-06 CARRIAGE.BOLT 532 44 34-30 CHUTE.MS498...
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REPAIR PARTS SNOW THROWER - - MODEL NUMBER ST 121E (96183000100) CHUTE ROTATOR CONTROL ASSEMBLY NOTE: All component dimensions given in U.S. inches. 1 inch = 25.4 mm IMPORTANT: Use only Original Equipment Manufacturer (O.E.M.) replacement parts. Failure to do so could be hazardous, damage your snow thrower and void your warranty.
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REPAIR PARTS SNOW THROWER - - MODEL NUMBER ST 121E (96183000100) CHUTE ROTATOR CONTROL ASSEMBLY PART DESCRIPTION 532 43 68-05 CABLE.DCC 532 43 68-06 CABLE.BRACKET_DCC 532 43 48-75 PLATE.CHUTE.BASE.PNT.MS431 532 44 39-39 CHUTE.BASE.DCC 532 44 39-38 RING.RETAINING.CHUTE.SSST 817 41 13-12 BOLT.HEX.WSH.HD.13-16 X 3/4...
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REPAIR PARTS SNOW THROWER - - MODEL NUMBER ST 121E (96183000100) SHROUD ASSEMBLY NOTE: All component dimensions given in U.S. inches. 1 inch = 25.4 mm IMPORTANT: Use only Original Equipment Manufacturer (O.E.M.) replacement parts. Failure to do so could be hazardous, damage your snow thrower and void your warranty.
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REPAIR PARTS SNOW THROWER - - MODEL NUMBER ST 121E (96183000100) SHROUD ASSEMBLY PART DESCRIPTION 532 44 34-26 COVER.NON-DRIVE.SIDE.MS428 532 44 39-73 COVER.DRIVE.SIDE.MS428 532 44 34-28 TOP .COVER 532 43 02-20 CAP .ASM.FUEL.2.25"FR.N/CB.E10 532 43 62-35 BULB.PRIMER 532 43 54-07...
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REPAIR PARTS SNOW THROWER - - MODEL NUMBER ST 121E (96183000100) DRIVE ASSEMBLY NOTE: All component dimensions given in U.S. inches. 1 inch = 25.4 mm IMPORTANT: Use only Original Equipment Manufacturer (O.E.M.) replacement parts. Failure to do so could be hazardous, damage your snow thrower and void your warranty.
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REPAIR PARTS SNOW THROWER - - MODEL NUMBER ST 121E (96183000100) DRIVE ASSEMBLY PART DESCRIPTION 532 43 48-60 SPACER.ENGINE.CRANK 532 43 45-02 KEEPER.ENGINE.BELT 532 42 64-90 PULLEY.ENG.TRACTION.3/4 532 85 10-74 WASHER.HARDEN 532 43 72-61 BELT-V.TRACTION 532 43 08-17 SCREW.CAP .SCHD.3/8-24 X 1.25 532 43 48-59 SPRING.IDLER.PULLEY.RETURN...
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REPAIR PARTS SNOW THROWER - - MODEL NUMBER ST 121E (96183000100) FRAME ASSEMBLY NOTE: All component dimensions given in U.S. inches. 1 inch = 25.4 mm IMPORTANT: Use only Original Equipment Manufacturer (O.E.M.) replacement parts. Failure to do so could be hazardous, damage your snow thrower and void your warranty.
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REPAIR PARTS SNOW THROWER - - MODEL NUMBER ST 121E (96183000100) FRAME ASSEMBLY PART DESCRIPTION 532 44 21-59 ENGINE.208.LCT.ESTRT.W/ALT 532 44 47-23 FRAME.WELDMENT.SSST 532 44 28-25 WHEEL.HUSQVARNA 532 43 54-17 NUT.PUSH.AXLE.0.5IN 532 43 55-78 SCREW.5/16-24 X 2.00"HHCS 532 15 04-06 BOLT.ENG.
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REPAIR PARTS SNOW THROWER - - MODEL NUMBER ST 121E (96183000100) AUGER ASSEMBLY SSST-Auger asm_1 NOTE: All component dimensions given in U.S. inches. 1 inch = 25.4 mm IMPORTANT: Use only Original Equipment Manufacturer (O.E.M.) replacement parts. Failure to do so could be hazardous, damage your snow thrower and void your warranty.
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REPAIR PARTS SNOW THROWER - - MODEL NUMBER ST 121E (96183000100) AUGER ASSEMBLY PART DESCRIPTION 872 11 04-07 BOLT.CARRIAGE 532 43 76-20 PIN.ROLL.3/16 X 1-1/4 532 19 96-87 BOLT.1/4-20.1.50" 532 43 76-18 PLATE.CENTER.BLADE 532 13 20-04 HEX.NUT.1/4-20 NYLON LOCKING 819 09 10-16 WASHER 9/32 X 5/8 X 16 GA.
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REPAIR PARTS SNOW THROWER - - MODEL NUMBER ST 121E (96183000100) ENGINE, LCT COMPLETE ENGINE-442159 442159 *Included with part# 40 26 26A 20 20A Electric Start Only rev. 6/8/11...
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REPAIR PARTS SNOW THROWER - - MODEL NUMBER ST 121E (96183000100) ENGINE, LCT COMPLETE ENGINE-442159 PART PART DESCRIPTION DESCRIPTION 444277 MUFFLER ASSEMBLY-SNOW 444091 HIGH OIL FILL TUBE ASSY 437122 SNOW CARBURETOR ASSY 420586 FLYWHEEL FAN 437123 FUEL PRIMER BULB WITH...