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Sears 1450 Series Owner's Manual

B&s engine 24" two-stage power-propelled snow thrower
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OWNER'S
MANUAL
MODEL NO.
944.524410
Caution:
Read and fol low
all Safety Rules
and In struc tions
Be fore Op er at ing
This Equip ment
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.
587392327 Rev. 1
1450 SERIES B&S ENGINE
24" TWO-STAGE
POWER-PROPELLED
SNOW THROWER
• Assembly
• Operation
• Maintenance
• Service and Adjustments
• Repair Parts
Sears Canada, Inc., Toronto, Ontario M5B 2B8

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  • Page 1 • Repair Parts 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. Sears Canada, Inc., Toronto, Ontario M5B 2B8 587392327 Rev. 1...
  • Page 2 IMPORTANT Safe Operation Practices for Walk-Behind Snow Throwers This snow thrower is capable of amputating hands and feet and throwing objects. Failure to observe the following safety instructions could result in serious injury. WARNING: Snow throwers have ex- Look for this symbol to point out im- posed rotating parts, which can cause por tant safety precautions.

  • Page 3: Table Of Contents

    6. When cleaning, repairing or inspecting the snow 16. Never touch a hot engine or muffler. thrower, stop the engine and make certain the collector/ impeller and all moving parts have stopped. Disconnect Clearing a Clogged Discharge Chute the spark plug wire and keep the wire away from the Hand contact with the rotating impeller inside the discharge plug to prevent someone from accidentally starting the chute is the most common cause of injury associated with...

  • Page 4: Warranty

    THIS PARAGRAPH SHALL NOT APPLY, BUT THE REMAINING PROVISIONS OF THIS DOCUMENT SHALL REMAIN VALID. SEARS retains the exclusive right to repair or replace the product or offer a full refund of the purchase price at its sole discretion. SUCH REMEDY SHALL BE YOUR SOLE AND EXCLUSIVE REMEDY FOR ANY BREACH OF WARRANTY.
  • Page 5 PARTS PACKED SEPARATELY IN CARTON (1) MULTI- WRENCH (3) KNOB (180684) 581697501 (2) LOCKNUTS (2) SHEAR BOLTS 1/4-20 x 1-3/4 1/4-20 (585511801) (73800400) SAFTEY IGNITION KEY (S) (193071) (2) CARRIAGE BOLTS 5/16-18 x 2 1/4” (587359001) (1) LOCKNUT (1) CARRIAGE BOLT 5/16-18 5/16-18 x 5/8 (73970500)

  • Page 6: Assembly / Pre-Operation

    ASSEMBLY / PRE-OPERATION Read these instructions and this manual in its entirety before you attempt to assemble or operate your new snow thrower. Reading the entire manual will familiarize you with the unit, which will assist you in assembly, operation and maintenance of the product.
  • Page 7 ASSEMBLY / PRE-OPERATION INSTALL DISCHARGE CHUTE / CHUTE ROTATOR HEAD INSTALL CHUTE DEFLECTOR REMOTE CONTROL (See Fig. 4 and 5) (See Figs. 6 and 7) 1. Install remote cable bracket to discharge chute with NOTE: The multi-wrench provided in your parts bag may 5/16-18 carriage bolt and 5/16-18 locknut as shown.

  • Page 8: Operation

    OPERATION KNOW YOUR SNOW THROWER READ THIS OWNER'S MANUAL AND ALL SAFETY RULES BEFORE OPERATING YOUR SNOW THROWER. Compare the illustrations with your snow thrower to familiarize yourself with the location of various controls and adjustments. Save this manual for future reference. These symbols may appear on your snow thrower or in literature supplied with the product.
  • Page 9 OPERATION DISCHARGE CHUTE CONTROL LEVER AUGER GAS O LINE CONTROL FILLER CAP DRIVE SPEED LEVER ELECTRIC CON TROL LEVER START MUF FLER BUTTON DEFLECTOR RECOIL REMOTE (AUXILIARY) CONTROL STARTER LEVER CHOKE HANDLE CON TROL ON / OFF SWITCH PRIM ER SAFETY TRACTION IGNITION...
  • Page 10 OPERATION TO CONTROL SNOW DISCHARGE (See Fig. 10) The operation of any snow thrower can result in foreign objects thrown into the eyes, which WARNING: Snow throwers have ex- can result in severe eye damage. Always wear posed rotating parts, which can cause safety glasses or eye shields while operating severe injury from contact, or from ma- your snow thrower or performing any ad just-...
  • Page 11 OPERATION USING THE CLEAN-OUT TOOL (See Fig. 12) CAUTION: Do not move speed con trol le ver In certain snow conditions, the discharge chute may when traction drive control lever is en gaged. become clogged with ice and snow. Use the clean-out tool Damage to the snow thrower can result.
  • Page 12 OPERATION BEFORE STARTING THE ENGINE TO ADJUST SKID PLATES (See Fig. 15) NOTE: The wrench provided in your parts bag may be CHECK ENGINE OIL LEVEL (See Fig. 16) used to adjust the skid plates. The engine on your snow thrower has been shipped from Skid plates are located on each side of the auger housing the factory already filled with oil.
  • Page 13 OPERATION TO START ENGINE 6. Pull recoil starter handle quickly. Do not allow starter rope to snap back. Your snow thrower engine is equipped with both a 120 Volt A.C. electric starter and a recoil starter. The electric starter 7. When the engine starts, release the recoil starter is equipped with a three-wire power cord and plug and is han dle and slowly move the choke control to the “OFF”...

  • Page 14: Maintenance

    MAINTENANCE LUBRICATION CHART GENERAL REC OM MEN DA TIONS ➀ The warranty on this snow thrower does not cover items SAE 5w30 Motor Oil that have been sub ject ed to operator abuse or negligence. ➁ See “Engine” in Maintenance section To receive full value from the warranty, operator must ➂...
  • Page 15 MAINTENANCE SNOW THROWER Check the crankcase oil level before starting the engine and after each five (5) hours of continuous use. Tighten oil Always observe the safety rules when performing any fill cap / dipstick securely each time you check the oil level. main te nance.

  • Page 16: Service And Adjustments

    SERVICE AND ADJUSTMENTS To replace the shear bolts: WARNING: To avoid serious injury, before 1. Disengage all controls and move throttle control to performing any service or ad just ments: STOP position. Wait for all moving parts to stop. 1. Be sure the on/off switch is in the 2.
  • Page 17 SERVICE AND ADJUSTMENTS TO REPLACE BELTS AUGER BELT REPLACEMENT (See Fig. 20) TO REMOVE AUGER BELT The auger and traction drive belts are not adjustable. If the belts are damaged or begin to slip from wear, they should 1. Remove upper 5/16” bolts and lower 1/4” bolts from be replaced.
  • Page 18 SERVICE AND ADJUSTMENTS AFTER REPLACING BELT(S) DRIVE BELT REPLACEMENT (See Fig. 21) 1. INSTALL BELT COVER and two (2) screws. Tighten TO REMOVE DRIVE BELT securely. 1. Remove auger belt. See “TO REMOVE AUGER BELT” 2. INSTALL DISCHARGE CHUTE – See “INSTALL in this section.
  • Page 19 SERVICE AND ADJUSTMENTS TO ADJUST SPEED SELECT AND DRIVE ENGAGEMENT CABLE TENSION (See Fig. 23) CHUTE ROTATOR After many hours of use, if first gear seems to slip or seems CABLE too slow, adjustments may need to be made to the Speed Select and Drive Engagement cable tensions to shorten their lengths.

  • Page 20: Storage

    STORAGE Immediately prepare your snow thrower for storage at • Empty the fuel tank by starting the engine and letting it run until the fuel lines and car bu re tor are empty. the end of the season or if the unit will not be used for 30 days or more.

  • Page 21: Troubleshooting

    TROUBLESHOOTING See appropriate section in manual unless directed to an authorized service center/department. PROBLEM CAUSE CORRECTION Does not start 1. Fuel shut-off valve (if so 1. Turn fuel shut-off valve to OPEN position. equipped) in OFF position. 2. Safety ignition key 2.

  • Page 22: Repair Parts

    SNOW THROWER - - MODEL NUMBER 944.524410 REPAIR PARTS AUGER HOUSING / IMPELLER ASSEMBLY 05.09.009-E 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.
  • Page 23 SNOW THROWER - - MODEL NUMBER 944.524410 REPAIR PARTS AUGER HOUSING / IMPELLER ASSEMBLY PART DESCRIPTION 586714801 GEARBOX AUGER 586607202 IMPELLER STEEL 586715201 PULLEY IMPELLER SCREW ON 585056901 CHUTE DISCHARGE BASE 178675 BRACKET CORNER DISCHARGE BASE 585511801 BOLT SHEAR 1/4-20 73800400 NUT NYLOCK 1/4-20 585691301...
  • Page 24 SNOW THROWER - - MODEL NUMBER 944.524410 REPAIR PARTS AUGER HOUSING / IMPELLER ASSEMBLY PART DESCRIPTION 581637302 AUGER HOUSING 404931X428 SCRA PER BAR 72270505 CARRIAGE BOLT 5/16-18 X .625 GR5 155377 NUT 5/16-18 05.09.010-C PART DESCRIPTION 420493X615 AUGER WELD RIB LH 24 420494X615 AUGER WELD RIB R H 24 05.09.005-C...
  • Page 25 SNOW THROWER - - MODEL NUMBER 944.524410 REPAIR PARTS AUGER HOUSING / IMPELLER ASSEMBLY PART DESCRIPTION 420478 AUGER BEARING 411939 BEARING PLUG 584299401 SCREW HI-LO WASHD 5/16-14 X 1.00 05.09.007-A PART DESCRIPTION 192199 TOOL CLEANOUT 405400 CLIP CLEANOUT TOOL 194189 SCREW HEX WASHER 13-16 X 5/8 05.09.039-A...
  • Page 26 SNOW THROWER - - MODEL NUMBER 944.524410 REPAIR PARTS CONTROL PANEL / DISCHARGE CHUTE PART DESCRIPTION 581131201 CONSOLE BASE MULTI CONTROL 17060410 SCREW TA SEMI GIMLE 1/4-20 X .62 581329501 SCREW HEX WASHER 13-16 X 1.50 05.07.003-A PART DESCRIPTION 581128105 CONSOLE BLACK 428 586181001 FLOOD LIGHT...
  • Page 27 SNOW THROWER - - MODEL NUMBER 944.524410 REPAIR PARTS CONTROL PANEL / DISCHARGE CHUTE PART DESCRIPTION 587463001 LEVER CONTROL DSSST OPP MPP 581208201 CONTROL UNIT ASM LEVER PIVOT 585690701 SCREW HEXHD 10-24 X 1.50 431762 GROOVED PIN 12000014 E-RING EXTERNAL 05.08.007-C PART DESCRIPTION...
  • Page 28 SNOW THROWER - - MODEL NUMBER 944.524410 REPAIR PARTS CONTROL PANEL / DISCHARGE CHUTE PART DESCRIPTION 580664701 CABLE INTERLOCK 431762 PIN GROOVED 12000014 E-RING 581151201 SPRING RETURN 197991 CLIP CABLE BLACK 05.08.001-B 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.
  • Page 29 SNOW THROWER - - MODEL NUMBER 944.524410 REPAIR PARTS CONTROL PANEL / DISCHARGE CHUTE 05.08.009-C PART DESCRIPTION 581128301 CABLE CONTROL DRIVE 587428701 CABLE CONTROL AUGER 587622801 CABLE CONTROL SPEED 581726101 BOLT SHOULDER 1/4 197991 CLIP CABLE 428124 FASTENER PUSH .250 581329401 PIN CLEVIS 5/16 423 303...
  • Page 30 SNOW THROWER - - MODEL NUMBER 944.524410 REPAIR PARTS CONTROL PANEL / DISCHARGE CHUTE 05.08.003-D PART DESCRIPTION 581680301 CABLE ROTATOR ASM 581329401 PIN CLEVIS 5/16 X 7/8 77100812 PIN CLEVIS 1/4 X 3/4 423303 HAIRPIN SOFT ZINC 584652201 CLIP CONDUIT DOUBLE 586682101 WASHER 587130801...
  • Page 31 SNOW THROWER - - MODEL NUMBER 944.524410 REPAIR PARTS CONTROL PANEL / DISCHARGE CHUTE PART DESCRIPTION 443328X615 CHUTE WELDMENT 178633X615 DEFLECTOR WELDMENT 420325 DEFLECTOR SEAL 128415 POP RIVET 430324 CHUTE SNOW SHIELD 419822X004 SHIELD STRAP RETAINER 586961501 CABLE ASM DEFLECTOR - BOWDEN 581329401 PIN CLEVIS 5/16 X .875...
  • Page 32 SNOW THROWER - - MODEL NUMBER 944.524410 REPAIR PARTS HANDLES PART DESCRIPTION 581123604 UPPER HANDLE 189713X428 HANDLE KNOB STD BLACK 587359001 BOLT 5/16-18 X 1.75 CONCAVE HEAD 05.06.001-E PART DESCRIPTION 581123504 LOWER TUBE 17000612 SCREW HEX WASH HD 3/8-16 X .75 581622002 CHUTE ROTATOR SUPPORT 17000510...
  • Page 33 SNOW THROWER - - MODEL NUMBER 944.524410 REPAIR PARTS DRIVE 05.03.002-A PART DESCRIPTION 444949 WASHER 1.00 581122301 BUSHING HEX 1 SHAFT 580757301 GEAR 59T DRIVEN 12000053 RETAINING RING 580752601 AXLE SHAFT SPLIT 4497H RETAINER SPRING 1 ZINC 126875X RIVET RD HD DRILLED 1/4 DIA 580752501 AXLE SLEEVE NOTE: All component dimensions given in U.S.
  • Page 34 SNOW THROWER - - MODEL NUMBER 944.524410 REPAIR PARTS DRIVE 05.02.002-C 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.
  • Page 35 SNOW THROWER - - MODEL NUMBER 944.524410 REPAIR PARTS DRIVE PART DESCRIPTION 521991101 NUT HEX FLANGE LK 1/2-13 581446903 SWING PLATE FRICTION PULL 581123001 ROD TIP PLATE 581732701 SPACER DRIVE 193885 LATCH SPRING 12000007 E-RING RETAINER 581328401 FRICTION DISC COMBO PULLEY 581454203 BRACKET YOKE WELDMENT 581315301...
  • Page 36 SNOW THROWER - - MODEL NUMBER 944.524410 REPAIR PARTS CHASSIS / ENGINE / PULLEYS PART DESCRIPTION - - - - - - - - B&S ENGINE 20M307-0001-F1 580839403 FRAME 150406 ENGINE BOLT 3/8-16 X 1.280 DOGPOINT 580839503 FRAME COVER 581122402 SHIFTER BRACKET 17060410 SCREW HEX WASHER...
  • Page 37 SNOW THROWER - - MODEL NUMBER 944.524410 REPAIR PARTS CHASSIS / ENGINE / PULLEYS 05.04.003-K PART PART DESCRIPTION DESCRIPTION 581623702 BELT KEEPER BRACKET 581413801 SHOULDER BOLT 19111216 WASHER 11/32 X 3/4 X 16 GA 5/16-24 X 2.15 10040500 LOCK WASHER 5/16 SPLIT HVY 587462901 IMPELLER/DRIVE PULLEY 74610512...
  • Page 38 SNOW THROWER - - MODEL NUMBER 944.524410 REPAIR PARTS CHASSIS / ENGINE / PULLEYS PART DESCRIPTION 587105501 BELT COVER HI CRANK 145006 CABLE GUIDE 585691101 BOLT HEX WSH THDRL 1/4-20 X 1 423062 PALNUT 1/4 IN 05.04.004-B 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.
  • Page 39 SNOW THROWER - - MODEL NUMBER 944.524410 REPAIR PARTS WHEELS PART DESCRIPTION 580627704 WHEEL 13X4 NPS RH 1.00 K478 580627604 WHEEL 13X4 NPS LH 1.00 K478 05.15.001-A 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.
  • Page 40 SNOW THROWER - - MODEL NUMBER 944.524410 REPAIR PARTS BAG OF PARTS PART DESCRIPTION 585511801 BOLT 1/4-20 X 1.81 73800400 NUT NYLOCK 1/4-20 180684 WRENCH 585832201 BOLT SHOULDER 585691401 NUT HEX FL 1/4-20 CTR 585691001 NUT NYLOCK 3/8-16 587359001 BOLT 5/16-18 X 2.2 5 CONCAVE 189713X428 KNOB 5/16-18 TWO-WING 585832001...
  • Page 41 SNOW THROWER - - MODEL NUMBER 944.524410 REPAIR PARTS DECALS PART DESCRIPTION 184045 DECAL AUGER 199682 DECAL CHUTE 199683 DECAL AUGER SAFETY 184028 DECAL BELT GUIDE 174572 DECAL CANADA 05.16.001-A 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.
  • Page 42 SNOW THROWER - - MODEL NUMBER 944.524410 REPAIR PARTS DECALS KEY PART DESCRIPTION 199683 DECAL, DANGER 199682 DECAL, DANGER, DEFLECTOR 184045 DECAL, DANGER 184028 DECAL, BELT GUARD 174572 DECAL, CANADA 587392327 OWNER’S MANUAL, ENGLISH 587392331 OWNER’S MANUAL, FRENCH 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.
  • Page 43 SNOW THROWER - - MODEL NUMBER 944.524410 REPAIR PARTS ENGINE, B&S MODEL NUMBER 20M307-0001-F1 1036 1058 1329 1330 1095 1022 718A 1427 1022 1022 1029 1100 1029A 1023 1351 1022 1026 1171...
  • Page 44 SNOW THROWER - - MODEL NUMBER 944.524410 REPAIR PARTS ENGINE, B&S MODEL NUMBER 20M307-0001-F1 957A 731A 1196 1196A 604A 1288 1318 1352 1127 601A 1138 668A 1210 613A 1211 1251A 1252 1251 1054...
  • Page 45 SNOW THROWER - - MODEL NUMBER 944.524410 REPAIR PARTS ENGINE, B&S MODEL NUMBER 20M307-0001-F1 1119 1005 1070 1070 PART PART DESCRIPTION DESCRIPTION 794849 CYLINDER ASSEMBLY 690976 SCREW (CONNECTING ROD) 698340 KIT-BUSHING/SEAL 499596 VALVE-EXHAUST (MAGNETO SIDE) 795199 VALVE-INTAKE 391086S SEAL-OIL (MAGNETO SIDE) 694865 SPRING-VALVE (INTAKE) 799860...
  • Page 46 SNOW THROWER - - MODEL NUMBER 944.524410 REPAIR PARTS ENGINE, B&S MODEL NUMBER 20M307-0001-F1 PART PART DESCRIPTION DESCRIPTION 694876 SPACER-CARBURETOR 793006 HOSE-PRIMER 796122 CARBURETOR 791822 GROMMET 690727 PLUG-WELCH 694674 BUSHING-GOVERNOR CRANK 696139 VALVE-THROTTLE 798197 BOLT (GOVERNOR CONTROL 694914 FLOAT-CARBURETOR LEVER) 698780 TUBE-FUEL TRANSFER 699854...
  • Page 47 SNOW THROWER - - MODEL NUMBER 944.524410 REPAIR PARTS ENGINE, B&S MODEL NUMBER 20M307-0001-F1 PART PART DESCRIPTION DESCRIPTION 791944 SWITCH-KEY 1138 694255 NUT (CONTROL BRACKET) 794827 SCREW (ROCKER COVER) (HIGH SPEED CONTROL) 799719 CAP-FUEL (SERVICE CAP) 1171 794828 STUD (ROCKER ARM COVER) 957A 792647 CAP-FUEL (ORIGINAL CAP)
  • Page 48 ® / Trademarks of Sears Brands Management Corporation used under license by Sears Canada Marque déposée / Marque de commerce de Sears Brands Management Corporation utilisée en vertu d’une licence de Sears Canada 08.22.14 TH Printed in the U.S.A.

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