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. 532 44 30-86 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 manufactured to give best possible dependability and performance. Should you experience any problem you cannot easily remedy, please contact your nearest authorized service center. We have competent, well-trained technicians and the proper tools to service or repair this unit. Please read and retain this manual. The instructions will enable you to assemble and maintain your snow thrower properly.
Operation Maintenance and Storage 1. Do not put hands or feet near or under rotating parts. Keep clear of the discharge opening at all times. 2. Exercise extreme caution when operating on or crossing gravel drives, walks, or roads. Stay alert for hidden hazards or traffic. 3. After striking a foreign object, stop the engine (motor), disconnect the cord on electric motors, thoroughly inspect the snow thrower for any damage, and repair the damage before restarting and operating the snow thrower. Remove key.
TABLE OF CONTENTS SAFETY RULES ........................................................ 2-3 PRODUCT SPECIFICATIONS ...................................... 3 CUSTOMER RESPONSIBILITIES................................ 3 SAFETY AND INSTRUCTIONAL DECALS ................. 4 ASSEMBLY ................................................................ 5-6 PRODUCT OVERVIEW ................................................ 7 OPERATION ............................................................ 8-11 MAINTENANCE .........
ASSEMBLY 4. Pull up and push down slightly on the handle to verify handle is locked into place (Figure 4). NOTE: If handle feels unsecure with the adjustment levers closed, tighten adjustment handle nuts until the handle feels secure. Setup LOOSE PARTS Use the chart below to verify that all parts have been shipped. Description 5. Remove the cardboard from recoil start handle and feed the recoil rope through the rope guide. 6.
ASSEMBLY Installing the Discharge Chute Filling the Engine with Oil 1. Install the chute deflector to the discharge chute using two screws, washers, and deflector knob (Figure 6). 2. Install the discharge chute to the chute base using three screws and nuts. ENGINE See engine manual. LUBRICATION NOTE: Although multi-viscosity oils (5W30, 10W30 etc.) improve starting in cold weather, these multi-viscosity oils will result in increased oil consumption when used above 32°F.
PRODUCT OVERVIEW Product Overview 10 2 12 1 16 17 3 9 11 4 13 8 *7 *7 6 14 15 5 Figure 8 1. 2. 3. 4. 5. Discharge chute Chute deflector Fuel tank cap Primer Electric-start button (if equipped) 6. Oil drain plug 7. Oil fill cap/dipstick 8. Choke lever 9. 10. 11. 12. 13. 14. 15. 16. 17. Ignition key Chute rotator handle Recoil start handle Control bar Lights Drive side cover Auger blade Deflector knob Owner's Manual * Dipstick location may vary depending on engine type.
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 performance, and may cause internal engine damage. NOTE: For best results, purchase only the quantity of gasoline that you expect to use in 30 days. Otherwise, you may add fuel stabilizer to newly purchased gasoline to keep it fresh for up to 6 months.
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. IMPORTANT: It may not be necessary to use the primer or the choke if the engine has been running and is hot. Excessive priming may flood the engine and prevent it from starting.
OPERATION Engaging the Auger Blades 1. To engage the auger blades, hold the control bar against the handle (Figure 13). 1 1 2 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). 1 Disengaging the Auger Blades 1. To disengage the auger blades, release the control bar (Figure 14). 1 1. Key Figure 16 Adjusting the Discharge Chute and Chute Deflector 1.
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 and retighten knobs (Figure 18). • 1 • • 2 • • 2 Let the engine run for a few minutes to prevent moving parts from freezing. Stop the engine, wait for all moving parts to stop, and remove ice and snow from the snowthrower. Clean off any snow and ice from the base of the chute.
MAINTENANCE Maintenance NOTE: Determine the left and right sides of the machine from the normal operating position.
MAINTENANCE Inspecting the Auger Blades/ Scraper Bar 5. After draining the used oil, return the snowthrower to the operating position. 6. Install the oil drain plug and torque to 145-150 in-lbs (17 N-m). NOTE: Dipstick location may vary depending on engine type. Before each session, inspect the auger blades for wear. When an auger blade edge or the scraper bar has worn down have an Authorized Service Dealer replace the auger blades and the scraper bar (Figure 22).
MAINTENANCE 8. Unsnap top cover by firmly pulling upwards at the rear section of the cover disengaging the three clips (Figure 28). 9. Shift top cover until fuel tank is clear of the rear upper cover and set top cover to the side of the unit. 10. Temporarily reinstall oil fill cap to prevent foreign object from entering the engine. 11. Remove 2 screws in the side cover and rear covers on both sides. Servicing the Spark Plug Use a NGK BPR6ES, Champion RN9YC, or BOSCH WR6DC spark plug or equivalent. 1. 2. 3.
MAINTENANCE 19. Install the spark plug and torque it to 20–22 ft-lb (27–30 N-m). 20. Connect the spark plug wire to the spark plug (Figure 30). 21. Reattach primer bulb tube to primer bulb and electrical wires on back ignition switch of rear upper cover (Figure 29). 22. Set rear upper cover in place so the two screw holes line up with the rear lower cover and side covers (Figure 32). 23. Reattach two screws through the rear covers and into the clip on the side cover (Figure 27). 15.
MAINTENANCE 4. Install the new auger v-belt and drive pulley, routing it as shown in (Figure 34). NOTE: Route the new auger v-belt first around the engine pulley, then the idler pulley, and finally around the drive pulley while pressing down on the front of the idler arm. (Figure 33). Replacing the Auger V-Belt If auger v-belt becomes worn, oil-soaked, excessively cracked, frayed, or otherwise damaged, replace the belt. 1. Remove the drive side cover by removing the six screws as shown in (Figure 33).
STORAGE Storage ENGINE OIL Drain oil (with engine warm) and replace with clean engine oil. (See “Changing the Engine Oil” section of this manual). STORING THE SNOWTHROWER Immediately prepare your snow thrower for storage at the end of the season or if the unit will not be used for 30 days or more. CYLINDER 1. Remove spark plug. 2. Pour one ounce (29 ml) of oil through spark plug hole into cylinder. 3. Pull recoil starter handle slowly a few times to distribute oil.
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. ON/OFF switch is OFF. 3. Move ON/OFF switch to ON position. 4. Choke in OFF position. 4. Move to FULL position. Loss of power 5. Primer not depressed. 5.
SERVICE NOTES 19
REPAIR PARTS SNOW THROWER - - MODEL NUMBER ST 121E (96183000100) HANDLE ASSEMBLY 1 2 20 3 20 21 4 20 5 19 9 10 7 8 12 15 14 14 17 12 13 7 15 16 11 16 18 17 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.
REPAIR PARTS SNOW THROWER - - MODEL NUMBER ST 121E (96183000100) HANDLE ASSEMBLY KEY NO. PART NO. QTY DESCRIPTION 1 532 44 32-45 1 SUBASM.CONTROL.SHROUD 2 532 44 16-24 1 COVER.HANDLE.LG.SHROUD 3 532 44 33-18 1 BRACKET.SUPPORT - DCC - STAMP - BLK 4 532 44 27-75 1 SUBASM.RH.LED 5 532 44 27-76 1 SUBASM.LH.LED 6 532 44 34-33 1 BAIL.OVERMOLD.ASM 7 532 44 22-50 4 SCREW.PAN.HD.TORX 1/4-20 X .750 8 532 14 50-06 3 CLIP.PUSH-IN.HINGED 9 532 43 75-06 1 DECAL.HANDLE BAR.
REPAIR PARTS SNOW THROWER - - MODEL NUMBER ST 121E (96183000100) CHUTE ASSEMBLY 7 8 9 9 8 10 6 10 10 5 4 3 5 2 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.
REPAIR PARTS SNOW THROWER - - MODEL NUMBER ST 121E (96183000100) CHUTE ASSEMBLY KEY NO. 1 PART NO. 817 41 13-12 QTY 2 DESCRIPTION BOLT.HEX.WSH.HD.13-16 X 3/4 2 532 44 34-25 1 PLENUM.MS498 3 819 13 13-16 1 WASHER 4 532 42 88-67 1 BOLT 5 872 01 05-06 5 CARRIAGE.BOLT 6 532 44 34-30 1 CHUTE.MS498 7 532 44 34-31 1 DEFLECTOR.CHUTE.MS498 8 532 19 19-38 2 HANDLE.KNOB 9 532 85 10-74 2 WASHER.HARDEN 10 532 44 22-48 3 NUT.5/16-18.FLANGE.NYLOCK.
REPAIR PARTS SNOW THROWER - - MODEL NUMBER ST 121E (96183000100) CHUTE ROTATOR CONTROL ASSEMBLY 13 12 11 5 10 9 6 2 2 10 9 2 2 6 4 5 8 7 3 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.
REPAIR PARTS SNOW THROWER - - MODEL NUMBER ST 121E (96183000100) CHUTE ROTATOR CONTROL ASSEMBLY KEY NO. PART NO. QTY DESCRIPTION 1 532 43 68-05 2 CABLE.DCC 2 532 43 68-06 4 CABLE.BRACKET_DCC 3 532 43 48-75 1 PLATE.CHUTE.BASE.PNT.MS431 4 532 44 39-39 1 CHUTE.BASE.DCC 5 532 44 39-38 2 RING.RETAINING.CHUTE.SSST 6 817 41 13-12 5 BOLT.HEX.WSH.HD.13-16 X 3/4 7 532 43 48-78 1 ARM.CHUTE.RATCHET 8 532 40 65-58 1 SPRING.RETURN.RGD 9 532 44 22-50 4 SCREW.PAN.HD.TORX 1/4-20 X .
REPAIR PARTS SNOW THROWER - - MODEL NUMBER ST 121E (96183000100) SHROUD ASSEMBLY 5 14 6 17 10 7 15 1 10 10 13 15 10 4 10 2 16 10 16 3 10 9 8 16 9 10 10 10 12 11 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.
REPAIR PARTS SNOW THROWER - - MODEL NUMBER ST 121E (96183000100) SHROUD ASSEMBLY KEY NO. PART NO. QTY DESCRIPTION 1 532 44 34-26 1 COVER.NON-DRIVE.SIDE.MS428 2 532 44 39-73 1 COVER.DRIVE.SIDE.MS428 3 532 44 34-28 1 TOP.COVER 4 532 43 02-20 1 CAP.ASM.FUEL.2.25"FR.N/CB.E10 5 532 43 62-35 1 BULB.PRIMER 6 532 43 54-07 1 KEY HOUSING 7 532 44 34-29 1 TOP.REAR.COVER 8 532 43 76-31 1 PLATE.EXHAUST.PNT. 9 817 41 13-12 2 SCREW.HI-LO 10 532 44 22-50 12 TORX.1/4-20X3/4.
REPAIR PARTS SNOW THROWER - - MODEL NUMBER ST 121E (96183000100) DRIVE ASSEMBLY 1 3 4 2 8 6 7 11 10 5 9 10 12 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.
REPAIR PARTS SNOW THROWER - - MODEL NUMBER ST 121E (96183000100) DRIVE ASSEMBLY KEY NO. 1 PART NO. 532 43 48-60 QTY 1 DESCRIPTION SPACER.ENGINE.CRANK 2 532 43 45-02 1 KEEPER.ENGINE.BELT 3 532 42 64-90 1 PULLEY.ENG.TRACTION.3/4 4 532 85 10-74 1 WASHER.HARDEN 5 532 43 72-61 1 BELT-V.TRACTION 6 532 43 08-17 1 SCREW.CAP.SCHD.3/8-24 X 1.25 7 532 43 48-59 1 SPRING.IDLER.PULLEY.RETURN 8 532 43 76-09 1 ARM.IDLER.PNT.MS431 9 532 16 60-43 1 PULLEY.IDLER.
REPAIR PARTS SNOW THROWER - - MODEL NUMBER ST 121E (96183000100) FRAME ASSEMBLY 11 1 2 3 4 15 14 15 10 8 8 5 3 4 8 9 6 6 12 7 13 12 7 12 7 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.
REPAIR PARTS SNOW THROWER - - MODEL NUMBER ST 121E (96183000100) FRAME ASSEMBLY KEY NO. PART NO. QTY DESCRIPTION 1 532 44 21-59 1 ENGINE.208.LCT.ESTRT.W/ALT 2 532 44 47-23 1 FRAME.WELDMENT.SSST 3 532 44 28-25 2 WHEEL.HUSQVARNA 4 532 43 54-17 2 NUT.PUSH.AXLE.0.5IN 5 532 43 55-78 2 SCREW.5/16-24 X 2.00"HHCS 6 532 15 04-06 2 BOLT.ENG. 3/8-16 X 1.280 7 532 19 17-30 3 NUT.HEX.FLANGE.1/4-20.CTR.LOCK 8 872 11 04-07 3 BOLT.RDHD.SQNK.1/4-20 UNC X 7/8 9 532 44 29-42 1 BAR.
REPAIR PARTS SNOW THROWER - - MODEL NUMBER ST 121E (96183000100) AUGER ASSEMBLY 2 3 1 10 11 4 14 7 56 13 9 1 12 8 9 11 12 5 4 5 13 6 10 11 SSST-Auger asm_1 7 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.
REPAIR PARTS SNOW THROWER - - MODEL NUMBER ST 121E (96183000100) AUGER ASSEMBLY KEY NO. 1 PART NO. 872 11 04-07 2 532 43 76-20 1 PIN.ROLL.3/16 X 1-1/4 3 532 19 96-87 1 BOLT.1/4-20.1.50" 4 532 43 76-18 2 PLATE.CENTER.BLADE 5 532 13 20-04 13 HEX.NUT.1/4-20 NYLON LOCKING 6 819 09 10-16 8 WASHER 9/32 X 5/8 X 16 GA. 7 532 44 27-59 2 BLADE.AUGER 8 532 43 76-17 1 WELDMENT.AUGER.ASM 9 532 43 76-21 2 SUPPORT.BEARING.SSST.PNT 10 532 43 76-22 2 BEARING.BALL.
REPAIR PARTS SNOW THROWER - - MODEL NUMBER ST 121E (96183000100) ENGINE, LCT COMPLETE ENGINE-442159 442159 56 37 36 27 57 34 49 30 31 29 62 47 38 39 10 10A 44 22A 22 53* 52* 40 41 32 *Included with part# 40 50 23 21 65 26 26A 20 20A 48 28 46 11 19 18 6 8 46A 3 Electric Start Only 17 rev.
REPAIR PARTS SNOW THROWER - - MODEL NUMBER ST 121E (96183000100) ENGINE, LCT COMPLETE ENGINE-442159 KEY NO. PART NO.
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