Sno-Thro ® Operator’s Manual Manuel du Utilisateur Platinum Series Model 921053 – Platinum SHO 24 EFI (SN 000101 +) E10 ENGLISH FRANÇAIS 05089300 • 7/16 Printed in USA
TABLE OF CONTENTS WELCOME . . . . . . . . . . . . . . . . . . . . . . 1 SAFETY. . . . . . . . . . . . . . . . . . . . . . . . . 2 Practices & Laws . . . . . . . . . . . . . . . . . . Emission Control System. . . . . . . . . . . . Required Operator Training . . . . . . . . . . Safety Alert Symbol . . . . . . . . . . . . . . . . Signal Words . . . . . . . . . . . . . . . . . . . . . Safety Decals. . . . . . . . . . . . . . . . . . . . . Safety Rules. . . . . . . . . . . . . . . . . . . . . .
WELCOME Congratulations on your purchase and welcome to the Ariens family! Every snow thrower in the Ariens lineup is designed for long-lasting and unsurpassed performance. We are confident your machine will be part of your family for many years to come. Have Questions or Need Assistance? ariensstore.com • ariens.custhelp.com A service guide and a parts manual for your unit are available for free download or purchase at ariens.com.
SAFETY WARNING: AVOID INJURY. This snow thrower is capable of crushing or amputating body parts. Failure to observe the safety instructions in the manuals and on decals could result in serious injury or death. ALWAYS disengage auger, stop unit and engine, remove key and allow moving parts to stop before leaving operator’s position. Read these safety rules and follow them closely.
4. Notice Safety Decal Descriptions NOTICE: Indicates information or procedures that are considered important but not hazard related. If not followed, property damage could result. 1. CAUTION! Danger! 5. Important IMPORTANT: Indicates general reference information worthy of special attention. SAFETY DECALS The safety decals on your machine are visual reminders of the important safety information in this manual. All messages on your unit must be fully understood and carefully followed.
SAFETY RULES 2. DANGER! The following safety instructions are based on the B71.3 specifications of the American National Standards Institute in effect at the time of production. Danger! Training ROTATING PARTS! Only use clean-out tool to clear blockages. NEVER use your hands. High-speed auger/impeller rotates below discharge opening. Wait for all moving parts to stop before removing clogs or servicing.
Handle fuel with care; it is highly flammable. • Use an approved fuel container. • Never add fuel to a running engine or hot engine. • Fill fuel tank outdoors with extreme care. Never fill fuel tank indoors. • Never fill containers inside a vehicle or on a truck or trailer bed with a plastic liner. Always place containers on the ground, away from your vehicle, before filling. • When practical, remove gas-powered equipment from the truck or trailer and refuel it on the ground.
Maintenance and Storage Disengage attachment when not in use and when traveling from one work area to another. Secure unit so it will not tip over during maintenance. Disengage power to the auger / impeller when snow thrower is transported or not in use. Before cleaning, removing clogs or making any inspections, repairs, etc., disengage clutch(es), stop engine, remove key, allow moving parts to stop and hot parts to cool.
Personal Protection Never fill or drain fuel tank indoors. Do not operate the equipment without wearing adequate winter garments. Avoid loose fitting clothing that can get caught in moving parts. Wear footwear that will improve footing on slippery surfaces. Replace fuel cap securely and clean up spilled fuel. Wear adequate safety gear, including safety glasses with side shields and protective gloves. Do not wear loose clothing or jewelry, and tie back hair that may get caught in rotating parts.
CONTROLS & FEATURES 29 3 1 4 5 2 6 28 7 8 27 25 26 24 9 23 10 22 11 12 18 21 17 19 16 14 20 15 13 Figure 3 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. Traction Drive Clutch Lever Discharge Chute Rotation Lever Heated Hand Grip Switch Discharge Chute Deflector Lever Attachment Clutch Lever Speed Selector Lever Engine Key Throttle Control Knob Discharge Chute Deflector Discharge Chute Snow Clean-out Tool Auger Scraper Blade Shear Bolt (2) Gearcase 16. 17. 18. 19. 20. 21. 22. 23.
SPEED SELECTOR LEVER WARNING: Read and understand the Safety section before proceeding. See Figure 6. Controls the speed of forward and reverse travel. See Figure 3 for all controls and features locations. ENGINE KEY See Figure 4. Controls power to the engine. The key cannot be removed when in run position. NOTICE: ALWAYS turn key to off position when not operating unit. Leaving key in run position while unit is not in use will drain battery and result in a difficult- or no-start condition.
TRACTION DRIVE CLUTCH LEVER (LEFT SIDE) See Figure 8. Allows unit to travel forward and in reverse. Figure 8 Figure 10 DUAL HANDLE INTERLOCK Allows auger / impeller to rotate without holding attachment clutch lever continuously. Auger continues to turn until both clutch levers are released. HEATED HAND GRIP SWITCH Turns the heated hand grips on and off. SCRAPER BLADE Contacts the surface being cleared and protects the housing from damage during normal use. DISCHARGE CHUTE ROTATION LEVER See Figure 9.
BEFORE OPERATING UNIT OPERATE UNIT 1. Check for a frozen impeller. a. Remove key. b. Engage attachment clutch lever and pull recoil starter handle. c. If handle does not pull, move unit to a warm area to thaw. 2. Check fuel level and add fuel if needed. 1. Rotate discharge chute and move deflector to desired positions. 2. Select desired speed. 3. Engage attachment clutch. IMPORTANT: Use fresh unleaded fuel with an octane rating of at least 87.
Your Ariens dealer can provide service and adjustments to keep your unit operating at peak efficiency. Contact an authorized engine manufacturer’s service center for engine service. Check Clutch Lever Operation • Check Dual Handle Interlock • Check Fasteners • SERVICE POSITION Check Clutch Cable Adjustments * See Figure 11. Check Tire Pressure WARNING: AVOID INJURY. Before tipping unit, close fuel valve and drain fuel from tank and fuel system. (Refer to engine manual for instructions.
CHECK DUAL HANDLE INTERLOCK CHANGE ENGINE OIL Refer to engine manual. 1. Stop engine. 2. Engage attachment clutch and then the traction drive clutch. 3. Release the attachment clutch lever. The attachment clutch should stay engaged until the traction drive clutch lever is released. CHECK AUGER GEARCASE OIL 1. Place unit on flat, level surface. 2. Remove oil fill plug and seal washer. See Figure 12. IMPORTANT: DO NOT remove gearcase cover.
LUBRICATE UNIT Model 921053 Ariens recommends using Ariens Hi-Temp Grease or equivalent (see Service Parts) to lubricate fittings. Lubricate each season or every 25 hours of operation. IMPORTANT: Wipe each fitting clean before and after lubrication. IMPORTANT: DO NOT allow grease or oil to contact friction disc, friction plate or belts. 1. Remove Bottom CoverPlace unit in service position (see Figure 11). 2. Remove six hex bolts retaining cover and remove cover. Save for reinstallation.
2. Apply grease at the grease zerks. See Figure 16. • Never leave charger/battery unattended while charging. • If wires become frayed, discontinue use and replace immediately. • If plastic connector is broken, discontinue use and replace immediately. • Dispose of old battery according to state or local laws. ADJUSTMENTS WARNING: AVOID INJURY. Read and understand the Safety section before proceeding. Figure 16 ADJUST SCRAPER BLADE 3. Hand rotate auger on auger shaft. 4.
1 2 3 1. Skid Shoe 2. Spacer 3. Scraper Blade Figure 17 4. Tighten skid shoe hardware. Figure 18 REPLACE SHEAR BOLTS IMPORTANT: Ariens recommends using only Ariens OEM shear bolts when replacing shear bolts. See Figure 15. 1. Align shear bolt holes in auger with shear bolt holes in the shaft. 2. Insert bolts through holes. 3. Secure bolts with nuts. 4. Tighten bolts to 7.9 – 16.5 N•m (5.8 – 12.2 lb-ft). If a torque wrench is unavailable, tighten bolts until they no longer spin freely.
ADJUST DISCHARGE CHUTE See Figure 20. If discharge chute does not stay in selected position: 1. Remove discharge chute gear cover. 2. Loosen rear adjustment nut and tighten forward adjustment nut until the lock arm engages the gear teeth. 3. Reinstall gear cover. If discharge chute does not rotate freely: 1. Remove discharge chute gear cover. 2. Loosen forward adjustment nut and tighten rear adjustment nut until there is no cable slack and the lock arm engages the gear teeth. 3. Reinstall gear cover. 4.
2. Disconnect spark plug wire. 3. Loosen hardware securing belt cover to unit and remove belt cover. 6. Tighten jam nut on cable adjustment barrel. See Figure 22. 7. Reinstall belt cover and tighten hardware. 8. Reconnect spark plug wire. IMPORTANT: DO NOT completely remove hardware from unit. 4. Loosen jam nut on cable adjustment barrel, and then turn the adjustment barrel down to shorten cable and remove cable slack. See Figure 22. 1 2 Check Attachment Idler Arm Roller Clearance 1.
• If there is less than 1.6 mm (1/16") gap, loosen idler adjustment nut and move idler away from belt or pulley. Position idler to achieve a 1.6 mm (1/16") minimum brake pad gap and a 12.7 – 22.2 mm (1/2 – 7/8") gap between the plastic roller and the frame. See Figure 25. IMPORTANT: If adjustments cannot be brought into specified ranges, see your dealer for repair. 1 Measure here. Figure 26 ADJUST TRACTION DRIVE CLUTCH 2 Measure here. 1. Brake Pad 2.
4. With traction clutch disengaged, check that the drive plate touches the stop bolt. See Figure 28. 2 1 1. Drive Plate 2. Stop Bolt Figure 28 5. Reconnect spark plug wire.
TROUBLESHOOTING Problem Probable Cause Engine key in stop position. Fuel tank is empty. Correction Turn engine key to run position. See Engine Key on page 9. Fill tank with fuel. See Before Operating Unit on page 11. See your dealer for repair. Ignition switch starter circuit is not functioning. Build up of dirt and residue Clean area around governor / carburetor. around governor / carburetor. See the service guide for your unit. Spark plug wire is disconnected. Connect spark plug.
TROUBLESHOOTING Problem Probable Cause Friction disc is worn. Correction Replace friction disc. Refer to the service guide for your unit. Traction belt is not functioning. Repair or replace traction drive belt. Refer Unit does not to the service guide for your unit. drive forward or Traction drive cable is not Remove slack from cable. See Adjust in reverse. adjusted correctly. Traction Drive Clutch on page 19. Speed selector is not adjusted Adjust speed selector. See Adjust Speed correctly.
START-OF-SEASON FUEL PREPARATION STORAGE WARNING: AVOID INJURY. Read and understand the Safety section before proceeding. Before starting unit for the first time after longterm storage, add fresh, stabilizer-treated fuel to the fuel tank and any fuel containers with remaining fuel. ACCESSORIES SHORT TERM 1. Run auger / impeller for a few minutes to remove loose or melting snow to prevent impeller from freezing. 2. Tighten all hardware to correct specifications. 3.
SPECIFICATIONS Model Number 921053 Description Platinum 24 SHO EFI Engine Ariens AX Gross Torque* – N•m (lb-ft) 23.1 (17.0) Displacement – cm3 (in3) 369.0 (22.5) Maximum RPM – No Load 3600 ± 50 Electric Start 120V Fuel Tank Capacity – liter (qt) 3.0 (3.2) Chute Chute Rotation Angle 200° Rotation Control 2.5X Quick Turn Deflector Control In-dash Lever Auger Snow Clearing Width – cm (in) 61.0 (24.0) Gearcase Cast Iron Auger Diameter – cm (in) 35.6 (14.
Sno-Thro®, Sno-Tek® and Chore Performing Equipment Limited Warranty Warranty Ariens Company (Ariens) warrants to the original purchaser that Ariens, Gravely, Parker, and Countax ® ® brand chore performing equipment (including Sno-Thro and Sno-Tek equipment) purchased on or after 1/1/2016 will be free from defects in material and workmanship for the time period noted in the chart below.
Exceptions and Limitations The chart below details special exceptions to this warranty: Warranty Code Warranty Period Use 1 Year All None Commercial These components are not covered when used commercially. Maximum 2 Years All Warranty is limited to 2 years for consumer use. (1 year for warranty code "PD".) Except as noted above, these components are covered for defect, not for wear. Maximum 2 Years All Warranty is limited on idlers to 2 years for consumer use.
Exclusions – Items Not Covered by This Warranty • Parts that are not genuine Ariens, Gravely, Parker or Countax service parts are not covered by this warranty and may void the warranty. • Damages resulting from the installation or use of any part, accessory, or attachment which is not approved by the Ariens Company for use with product(s) identified herein are not covered by this warranty.
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