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Frontier ST0521M Operator's Manual

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ST0521M
ST0521E

Snow Thrower

OPERATOR'S
MANUAL
MTF-0410107C

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Summary of Contents for Frontier ST0521M

  • Page 1: Snow Thrower

    ST0521M ST0521E Snow Thrower OPERATOR’S MANUAL MTF-0410107C...

  • Page 2: Responsibility Of The Owner

    INTRODUCTION Congratulations on your purchase of a Frontier Snowthrower. It has been designed, engineered and manufactured to give you the best possible dependability and performance. However, like all mechanical products, your machine will occasionally re- quire adjustment and maintenance. This handbook should be read before operating or performing and adjustments on your machine.

  • Page 3: Rules For Safe Operation

    RULES FOR SAFE OPERATION IMPORTANT WARNING: Always disconnect the spark plug wire and place it where it cannot make contact with spark plug to prevent accidental starting during: Preparation, Maintenance, or Storage of your snowthrower. Safe Operation Practices for Snowthrowers As Recommended By: American National Standards Institute.

  • Page 4: Maintenance And Storage

    RULES FOR SAFE OPERATION Maintenance And Storage 7. Stop the engine (motor) whenever you leave the operat- ing position, before unclogging the auger/impeller hous- 1. Check shear bolts and other bolts at frequent intervals ing or discharge chute and when making any repairs, for proper tightness to be sure the equipment is in safe adjustments, or inspections.

  • Page 5: Table Of Contents

    TABLE OF CONTENTS SAFETY DECALS ..........WARRANTY .

  • Page 6: Safety Decals

    SAFETY DECALS the meaning, then thoroughly read all safety and operation WARNING: If safety decals are dam- instructions in this Owner’s Manual or contact your local aged or missing, replace immediately. dealer. If any safety decals become worn or damaged and cannot Look for this symbol to indicate important safe- be read, order replacement decals from your local dealer.

  • Page 7: Warranty

    THREE YEAR LIMITED WARRANTY Murray warrants to the original purchaser of this Frontier Branded Snowthrower that this unit shall be free from defects in material and workmanship under normal use and service for a period of Three (3) Year from the date of purchase; however,...

  • Page 8: Assembly

    ASSEMBLY PARTS BAGS CONTENTS: WARNING: Always wear safety glasses or eye shields while assembling the snowthrower. 1 - 2.6 ounces 2-cycle oil 1 - Owner’s Manual TOOLS REQUIRED FOR ASSEMBLY Figure 6 shows the snow thrower in the operating position. 1-Knife References to the right or left hand side of the snow throw- 1-Pliers...

  • Page 9: How To Assemble The Handle

    ASSEMBLY HOW TO ASSEMBLE THE HANDLE Remove the packing material from the upper and NOTE: Make sure the cables are not caught between lower handles. the upper and lower handle. Loosen the knobs on each side of the handle. (See Tighten the knobs.
  • Page 10 ASSEMBLY CHECKLIST Before you operate your new snowthrower, to ensure that you receive the best performance and satisfaction from this quality product, please review the following checklist: n All assembly instructions have been completed. n The discharge chute rotates freely. n No remaining loose parts in carton.

  • Page 11: Operation

    OPERATION KNOW YOUR SNOWTHROWER READ THIS OWNER’S MANUAL AND SAFETY RULES BEFORE OPERATING YOUR SNOWTHROWER. Compare the illustrations with your SNOWTHROWER to familiarize yourself with the location of various controls and adjustments. Save this manual for future reference. Auger Drive Lever Chute Control Rod Chute Deflector Recoil...

  • Page 12: Snowthrower Operation

    OPERATION SNOWTHROWER OPERATION NOTE: If the snowthrower continues to slowly move forward, see “How To Adjust The Auger Control The most effective use of the snowthrower will be established Cable” in the Maintenance Section. by experience, taking into consideration the terrain, wind 2.

  • Page 13: How To Mix The Fuel Mixture

    OPERATION BEFORE STARTING THE ENGINE Mix gasoline and oil as follows: WARNING: Experiences indicates that alcohol 1. Pour one (1) U.S. quart of fresh, clean, unleaded auto- blended fuels (called gasohol or those using motive gasoline into a one gallon size gasoline con- ethanol or methanol) can attract moisture tainer.

  • Page 14: Before Starting The Engine

    OPERATION BEFORE STARTING THE ENGINE 3. Before starting the engine, make sure all controls oper- ate correctly. 1. Before you service or start the engine, familiarize your- self with the snow thrower. Be sure you understand the function and location of all controls. HOW TO STOP THE ENGINE 2.

  • Page 15: How To Remove Snow From The Auger Housing

    OPERATION HOW TO REMOVE SNOW FROM THE AUGER 1. Release the auger drive lever. HOUSING 2. Remove the ignition key. 3. Disconnect the spark plug wire. WARNING: Do not attempt to remove snow or debris that may become lodged in auger 4.

  • Page 16: Service Recommendations

    SERVICE RECOMMENDATIONS SERVICE RECOMMENDATIONS FIRST BEFORE EVERY EVERY EVERY BEGINNING EACH EACH BEFORE PROCEDURE HOUR OFTEN HOURS HOURS HOURS SEASON STORAGE Tighten all screws and nuts √ √ √ Lubricate Chute Control √ √ Flange Lubricate Auger Bail √ √ Check Auger Drive Cable Adjustment √...

  • Page 17: How To Lubricate The Idler Arm

    SERVICE RECOMMENDATIONS HOW TO LUBRICATE THE IDLER ARM CAUTION: DO NOT get oil on the belt or pulleys. Idler Arm 1. Remove the screws from the belt cover. Remove the belt cover. 2. Apply a drop of oil to the idler arm at point B (see Figure 12).

  • Page 18: Maintenance

    MAINTENANCE HOW TO ADJUST THE BELT TENSION 11. Remove the boot from the auger cable spring as fol- lows: IMPORTANT: When you release the auger bail, the au- Disconnect the end of the idler spring from the ger must stop rotating. If the auger does not stop, ad- idler arm (see Figure 14).

  • Page 19: How To Free The Auger Cable

    MAINTENANCE HOW TO REPLACE THE SCRAPER BLADE 1. Remove the fasteners that secure the scraper blade (Figure 15). 2. Install a new scraper blade and secure with the fasteners removed in step 1. Scraper Blade Figure 15 HOW TO FREE THE AUGER CABLE IMPORTANT: If the auger cable will not move when you ENGAGE the bail, the auger cable could be frozen in- side the conduit.

  • Page 20: How To Adjust The Chute Crank

    MAINTENANCE WARNING: To prevent accidental starting when making any adjustments or repairs, always dis- connect the spark plug wire and place it where it cannot make contact with the spark plug . HOW TO ADJUST THE CHUTE CRANK Crank Adjusting Bracket If the chute crank will not rotate fully to the left or right, adjust as follows.

  • Page 21: How To Replace The Drive Belt

    MAINTENANCE HOW TO REPLACE THE DRIVE BELT Belt Guide Engine PUlley The drive belt is of special construction and must be re- Idler Pulley placed with original factory replacement belt available from your nearest authorized service center. Drive Belt 1. Remove the belt cover. See “How To Remove The Belt Cover”.

  • Page 22: How To Replace The Auger

    MAINTENANCE HOW TO REPLACE THE AUGER 1. Remove the belt cover. See “How To Remove The Belt 5. Remove the fasteners from the bearing assembly. Re- Cover”. move the bearing assembly from the auger housing. 2. Remove the drive belt. See “How To Replace The Drive 6.

  • Page 23: To Adjust The Carburetor

    MAINTENANCE TO ADJUST THE CARBURETOR The carburetor is not adjustable. Engine performance Fuel Cap should not be affected at altitudes up to 7,000 feet. For Shroud operation at higher elevations, contact your nearest autho- rized service center. IMPORTANT: Never tamper with the engine governor, which is factory set for proper engine speed.

  • Page 24: Storage

    STORAGE OFF SEASON STORAGE 5. Insure that all nuts, bolts, and screws are securely fas- tened. Inspect all visible moving parts for damage, WARNING: Never store the engine, with fuel in breakage, and wear. Replace if necessary. the tank, indoors or in a poor ventilated enclo- sure where fuel fumes could reach an open 6.

  • Page 25: Trouble Shooting Chart

    If you have any questions concerning parts, service, or technical data, contact your nearest John Deere/Frontier dealer. For complete warranty information refer to the warranty in the Owner’s Information section of this manual.
  • Page 26 NOTES MTF-0410107C...

  • Page 27: Replacement Parts

    REPLACEMENT PARTS WE RECOMMEND JOHN DEERE/FRONTIER quality parts and lubricants available at your John Deere/Frontier dealer. PART NUMBERS MAY CHANGE. When you order re- placement parts, use the part numbers listed below and on the following pages. If a part number changes, your John Deere/Frontier dealer will have the latest part number.

  • Page 28: Parts Schematics

    FRONTIER MODEL ST0521M FACTORY MODEL 621501x16NB FRONTIER MODEL ST0521E FACTORY MODEL 621500x16NB ENGINE ASSEMBLY 24 23 MTF-0410107C...
  • Page 29 FRONTIER MODEL ST0521M FACTORY MODEL 621501x16NB FRONTIER MODEL ST0521E FACTORY MODEL 621500x16NB ENGINE ASSEMBLY Key No. Part No. Description _ _ _ _ _ _ _ ENGINE MT340381E701 AUGER HOUSING, 21” MT313780 SCREW, .31-18x .5 MT301419E701 SUPPORT, FRAME MT301415E701 SUPPORT, ENGINE MT71391 NUT.31-18 HEX...
  • Page 30 FRONTIER MODEL ST0521M FACTORY MODEL 621501x16NB FRONTIER MODEL ST0521E FACTORY MODEL 621500x16NB FRAME ASSEMBLY MTF-0410107C...
  • Page 31 NUT, LOCK .31-18 MT311738E701 HEAT SHIELD - - - - - - - ENGINE MT301421E701 PLATE, REAR MT LH MT302635 NUT, LOCK .25-20 MT303041 WASHER, FLAT MT307761 BRACKET, COVER MT305869 BOTTOM COVER ST0521M (621501x16NB) MT1501743 BOTTOM COVER ST0521E (621500x16NB) MTF-0410107C...
  • Page 32 FRONTIER MODEL ST0521M FACTORY MODEL 621501x16NB FRONTIER MODEL ST0521E FACTORY MODEL 621500x16NB HANDLE ASSEMBLY Key No. Part No. Description Key No. Part No. Description MT307747 DRIVEBAR MT71055 NUT, LOCK 10-24 MT309815 SCREW 10-24x1.00 MT301421E701 PLATE, REAR MT LH MT329935 KNOB...
  • Page 33 FRONTIER MODEL ST0521M FACTORY MODEL 621501x16NB FRONTIER MODEL ST0521E FACTORY MODEL 621500x16NB AUGER HOUSING Key No. Part No. Description MT579052 SCREW .25-20X.63 MT71067 WASHER, FLAT .281x.63x.065 MT54836 PLATE, BEARING RETAINER MT583459 PLATE & BEARING ASSY MT73826 NUT, LOCK .25-20 MT340381E701 AUGER HOUSING 21”...
  • Page 34 FRONTIER MODEL ST0521M FACTORY MODEL 621501x16NB FRONTIER MODEL ST0521E FACTORY MODEL 621500x16NB DISCHARGE CHUTE MTF-0410107C...
  • Page 35 FRONTIER MODEL ST0521M FACTORY MODEL 621501x16NB FRONTIER MODEL ST0521E FACTORY MODEL 621500x16NB DISCHARGE CHUTE Key No. Part No. Description MT15X144 NUT.31-18 HEX MT71060 WASHER, LOCK MT71071 WASHER, FLAT .349-0.69-.07 MT302505E701 BRKT, WORM ADJUST MT71081 PIN, COTTER.094x0.75L MT12452 WASHER, FLAT .400-0.75-.02 MT313431 WASHER, SPRING .395-0.73-.01...
  • Page 36 FRONTIER MODEL ST0521M FACTORY MODEL 621501x16NB FRONTIER MODEL ST0521E FACTORY MODEL 621500x16NB TOP COVER ASSEMBLY MTF-0410107C...
  • Page 37 FRONTIER MODEL ST0521M FACTORY MODEL 621501x16NB FRONTIER MODEL ST0521E FACTORY MODEL 621500x16NB TOP COVER ASSEMBLY Key No. Part No. Description MT309813 SCREW 10-14x.63 MT711666 WASHER, FLAT MT71055 NUT, LOCK 10-24 MT303041 WASHER, FLAT MT309811 NUT, U TYPE MT12342 SCREW 10-24x.50...
  • Page 38 FRONTIER MODEL ST0521M FACTORY MODEL 621501x16NB FRONTIER MODEL ST0521E FACTORY MODEL 621500x16NB WHEEL ASSEMBLY Key No. Part No. Description MT577598 RING, RET. E MT71072 WASHER, FLAT .406x.81x.07 MT1501741 7.75”X1.75” WHEEL MT309656 SPACER, SLEEVE MT307719 AXLE SHAFT MT301421E701 PLATE, REAR MT LH...
  • Page 39 FRONTIER MODEL ST0521M FACTORY MODEL 621501x16NB FRONTIER MODEL ST0521E FACTORY MODEL 621500x16NB CHUTE ROD ASSEMBLY Key No. Part No. Description MT331532 PUSH NUT MT307755 KNOB, GRIP MT12452 WASHER, FLAT .400x.75x.02 MT71081 PIN, COTTER MT307742 ROD, CHUTE CNTRL LWR MT51564 BLOCK, PIVOT...
  • Page 40 MT48x5262 DECAL, DANGER AUGER MT48x5642 DECAL, DANGER CHUTE MT337524 DECAL, AUGER CONTROL MT340709 DECAL, CONTROL PANEL ST0521E (621500x16NB) MT340708 DECAL, CONTROL PANEL ST0521M (621501x16NB) MT69880 DECAL, HOT MUFFLER MT48x5260 DECAL, FRONTIER ST0521 MT48x5640 DECAL, EPA MTF-0410107C OPERATOR’S MANUAL * Not Illustrated...
  • Page 41 FRONTIER MODEL ST0521E FACTORY MODEL 621500x16NB ELECTRIC STARTER Ref. Hardware (Bolts) Ref. Electric Starter Ref. Engine Ref. Top Cover Key No. Part No. Description INCLUDED WITH ENGINE MT271163 NUT, KEPS 8-32 MT414106 WASHER, FLAT MT311633 SCREW 8-32x3.00 MT56023 CORD, EXTENSION...
  • Page 42 NOTES MTF-0410107C...
  • Page 43 NOTES MTF-0410107C...

  • Page 44: Specifications

    SPECIFICATIONS ST0521M, ST0521E Engine Tecumseh Snow King 2-Cycle Horsepower 5 hp Starter ST0521M Recoil ST0521E Electric Fuel Capacity 1.5 quart Drive System Auger Tire Diameter 7” Clearing Width 21” 12” Housing Height Auger Diameter 9” Auger Type Rubber-edged Chute Rotation...

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