921 Series Sno-Thro® Owner/Operator Manual Manuel Du Propriétaire/Utilisateur Models 921023 – Deluxe 28 Track (SN 095000 +) 921024 – Deluxe 24 (SN 000101 +) 921028 – Deluxe 24 Platinum (SN 000101 +) 921029 – Deluxe 30 Platinum (SN 000101 +) 921030 – Deluxe 28 (SN 000101 +) 921032 – Deluxe 30 (SN 000101 +) 921035 – Deluxe 28 (SN 000101 +) E10 The use of any gasoline exceeding 10% ethanol (E10) or 10% MTBE will void the product warranty.
TABLE OF CONTENTS SAFETY. . . . . . . . . . . . . . . . . . . . . . . . . . 4 STORAGE . . . . . . . . . . . . . . . . . . . . . . . 35 ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . 8 SERVICE PARTS . . . . . . . . . . . . . . . . . 35 CONTROLS and FEATURES . . . . . . . . 15 ACCESSORIES. . . . . . . . . . . . . . . . . . . 35 OPERATION . . . . . . . . . . . . . . . . . . . . . 17 TROUBLESHOOTING . . . . . . . . . . . . . 36 MAINTENANCE . . . . . . . . . . . . . . . . . . 24 SPECIFICATIONS .
UNAUTHORIZED REPLACEMENT PARTS DELIVERY Use only Ariens replacement parts. The replacement of any part on this vehicle with anything other than an Ariens authorized replacement part may adversely affect the performance, durability, or safety of this unit and may void the warranty. Ariens disclaims liability for any claims or damages, whether warranty, property damage, personal injury or death arising out of the use of unauthorized replacement parts. To locate your nearest Ariens Dealer, go to www.ariens.
SAFETY NOTATIONS WARNING: To avoid injury to hands and feet, always disengage clutches, shut off engine, and wait for all movement to stop before unclogging or working on snow thrower. Hand contact with the rotating impeller is the most common cause of injury associated with snow throwers. Never use your hand to clean out the discharge chute. Keep hands and feet away from auger and impeller. NOTICE: General reference information for proper operation and maintenance practices.
1. DANGER! 2. DANGER! Danger! Danger! ONLY use clean-out tool to clear blockages. NEVER use your hands. ROTATING PARTS! ONLY use clean-out tool to clear blockages. NEVER use your hands. High speed impeller rotates below discharge opening. Wait for all moving parts to stop before removing clogs or servicing. Never direct discharge towards persons or property that may be injured or damaged by thrown objects. Keep people away from unit while operating.
EMISSION CONTROL SYSTEM This equipment and/or its engine may include exhaust and evaporative emissions control system components required to meet U.S. Environmental Protection Agency (EPA) and/or California Air Resources Board (CARB) regulations. Tampering with emission controls and components by unauthorized personnel may result in severe fines or penalties. Emission controls and components can only be adjusted by an Ariens Company dealer or an authorized engine manufacturer's service center.
Abnormal Vibrations are a warning of trouble. Striking a foreign object can damage unit. Immediately stop unit and engine. Remove key and wait for all moving parts to stop. Remove wire from spark plug. Inspect unit and make any necessary repairs before restart. Before cleaning, removing clogs or making any inspections, repairs, etc.: disengage clutch(es), stop unit and engine, remove key, allow moving parts to stop. Allow hot parts to cool.
ASSEMBLY WARNING: AVOID INJURY. Read and understand the entire Safety section before proceeding. PACKAGE CONTENTS 18. 06435900 4 Washer, Flat Steel .438 x 1.00 x .083 (921029, 032) 19. 06529600 4 Nut, Locking, Center, .38-16 (921029, 032) If any of the contents listed are missing contact your local Ariens dealer. Use only Ariens approved parts; unapproved parts may void the unit warranty. WARNING: Dropping or tipping over boxed unit could result in personal injury or damage to unit.
ASSEMBLY . 7 6 Tools Required: • • • • • 5 4 2 Pliers Open-End Wrenches: 3/8, 7/16, 1/2, 9/16" and/or Adjustable Wrench Tire Gauge Torque Wrench (Optional) Phillips Screwdriver 3 Unfold Lower Handlebar (Figure 4) IMPORTANT: Be sure to block wheels or secure unit so it does not move during assembly. 1. Rotate lower handlebar out from unit so lower handlebar mounting holes align with mounting holes on the unit frame (Figure 4). 1 1. Upper Handlebar Assembly 2. Lower Handlebar 3.
Unfold Upper Handlebar Assembly (Figures 7 and 8) 1. Rotate the handlebar into operating position. NOTICE: Be careful not to damage cable spring hooks when rotating handlebar upward. . 4 1 1 1. 2. 3. 4. 2 3 2 3 Wire Harness Cable Tie Cable Anchor Engine Electrical Plug 4 Figure 8 1. 2. 3. 4. 3. Press cable anchor into mounting hole in the frame near the engine electrical plug. 4. Secure the wire harness to the handlebars using the cable ties attached to the wire harness.
Install Discharge Chute and Discharge Chute Crank (921023, 024, 030, 032, 035) . 921023, 024, 030, 032, 035 (Figures 10 and 11) 1. Grease underside of discharge chute ring (if not already greased). 2. Remove mounting hardware from auger housing (Figure 10). 3. Install discharge chute over opening in the auger housing. Finger tighten the mounting hardware removed in step 2. NOTICE: Leave discharge chute pedestal loose to help install the chute crank. 3 2 1 1 1. Chute Crank 2. Control Panel 3.
3 1 2 2 OS7040 1 3 2 3 5 5 4 4 1. 2. 3. 4. 5. Mounting Holes Discharge Chute Chute Pedestal Discharge Chute Ring Mounting Hardware 1 Figure 12 4. Remove the gear cover from top of chute pedestal. 5. Release the lock arm on the gear assembly with your finger and rotate the discharge chute so it points straight ahead. NOTICE: Make sure alignment markers on gear assembly are lined up when discharge chute is pointing straight ahead. 6. Remove rubber grommet from control panel. 7.
8 NOTICE: If chute does not stay in position, adjust as directed in Discharge Chute (921028, 029) on page 28 or repair before operation. 6 1 9 3 Remote Deflector Control 2 (Figure 15) NOTICE: Connect the barrel cable end to the chute deflector cable anchor before clipping the cable to the discharge chute cable bracket. 1. Route deflector cable along the left side of the chute pedestal. 2. Insert the barrel cable end into the bracket on left side of chute deflector (Figure 15). 3.
Install Skid Shoes (921029, 032) CAUTION: Avoid injury! Explosive separation of tire and rim parts is possible when they are serviced incorrectly: • Do not attempt to mount a tire without the proper equipment and experience to perform the job. • Do not inflate the tires above the recommended pressure. • Do not weld or heat a wheel and tire assembly. Heat can cause an increase in air pressure resulting in an explosion. Welding can structurally weaken or deform the wheel.
CONTROLS AND FEATURES 921028, 029 8 3 9 6 2 5 8 4 3 6 2 5 7 1 4 7 1 Figure 17 1. Skid Shoe 2. Clean-Out Tool 3. Remote Discharge Chute Deflector 4. Belt Cover 5. Headlight 6. Discharge Chute 7. Impeller 8. Chute Crank 9.
4 3 2 7 6 1 18 19 5 20 Briggs & Stratton 14 9 10 13 15 12 11 11 17 17 8 16 Ariens AX 15 9 12,13 16 16 11 17 11 16 10 17 8 14 8 16 Figure 18 1. Attachment Clutch Lever 2. 3. 4. 5. 6. 7. Speed Selector Traction Drive Clutch Lever Remote Deflector Control Height Adjuster Trigger (921023) Handwarmers (921028, 029) Handwarmers Switch (921028, 029) 8. Oil Drain 9. Fuel Shut-Off Valve 10. Primer Bulb 11. 12. 13. 14. 15. 16. 17. 18. 19. 20.
OPERATION WARNING: AVOID INJURY. Read and understand the entire Safety section before proceeding. WARNING: To avoid injury to hands and feet, always disengage clutches, shut off engine, and wait for all movement to stop before unclogging or working on snow thrower. Keep hands and feet away from auger and impeller. IMPORTANT: If the belt squeals continuously when the attachment clutch lever is engaged, the impeller may be frozen in the auger housing.
Speed Selector Electric Starter Position the Speed Selector in the appropriate speed notch to control forward and reverse travel. Forward: 6 (6) Fastest (1) Slowest Reverse: (1) Slow (2) Fast IMPORTANT: DO NOT change 1 motion from forward to reverse with clutch engaged. Forward speed can be changed without declutching. 1 The electric starter will start a properly choked and cranked engine when the starter button is pushed. Refer to Starting and Shut Off on page 22.
Discharge Chute Crank (921023, 024, 030, 032, 035) Axle Lock Pin (921024) (Figure 20) IMPORTANT: If chute does not stay in set position, adjust as directed in SERVICE AND ADJUSTMENTS on page 27, or repair before operation. Rotate the Chute with Discharge Chute Crank. (Figure 22) Use the axle lock pin to lock or unlock the right or left wheel. Lock both wheels to increase traction; unlock one wheel to allow for easier turning of the unit. NOTICE: Unit will not drive with both wheels unlocked.
FILLING FUEL TANK Skid Shoes The skid shoes control the distance between the scraper blade and the ground. Adjust skid shoes equally to keep blade level with the ground. Refer to Pre-Start on page 21 for recommended settings. WARNING: AVOID INJURY. Read and understand the entire Safety section before proceeding. GASOLINE Track Angle (921023) (Figure 23) The track angle can be adjusted to position the auger housing for level clearing, deep cutting or transport.
IMPORTANT: DO NOT OVERFILL! This equipment and/or its engine may include evaporative emissions control system components, required to meet EPA and/or CARB regulations, that will only function properly when the fuel tank has been filled to the recommended level. Overfilling may cause permanent damage to evaporative emissions control system components. Filling to the recommended level ensures a vapor gap required to allow for fuel expansion.
STARTING AND SHUT OFF Electric Start (120V) WARNING: FAILURE TO FOLLOW INSTRUCTIONS could result in personal injury and/or damage to unit. DO NOT attempt to start your unit at this time. Read entire Owner/Operator Manual and the Engine Manual first. IMPORTANT: Allow unit and engine to adjust to the outdoor temperature before clearing snow. Before shut-off, run the attachment a few minutes to prevent impeller freeze-up.
Shut Off TRAVELING 1. Release Traction Drive Clutch Lever and allow unit to come to a complete stop. 2. Run Impeller a few minutes after use to prevent freeze-up of Impeller. 3. Release Attachment Clutch Lever and wait for all moving parts to come to a complete stop. 4. Move Throttle to the “Slow” position. 5. 921023, 035: Turn ignition key into the "Stop" position and remove key. 921024, 028, 029, 030, 032: Turn off the engine shut-off switch ("STOP").
MAINTENANCE Ariens Dealers will provide any service or adjustments which may be required to keep your unit operating at peak efficiency. Should engine service be required, contact an Ariens dealer or an authorized engine manufacturer's service center. The chart below shows the recommended maintenance schedule that should be performed on a regular basis. More frequent service may be required. MAINTENANCE SCHEDULE WARNING: AVOID INJURY. Read and understand the entire Safety section before proceeding.
CHECK CLUTCH OPERATION Auger / impeller must stop within 5 seconds when attachment clutch lever is released. Wheels must stop quickly when traction drive clutch lever is released. If clutches do not engage or disengage properly, adjust or repair before operation. See Attachment Clutch/Brake Adjustment on page 29 and Traction Drive Clutch Adjustment on page 31.
GENERAL LUBRICATION IMPORTANT: Wipe each fitting clean before and after lubrication. IMPORTANT: DO NOT allow grease or oil to get on friction disc, friction plate or belts. NOTICE: Apply Ariens Hi-Temp Grease or equivalent to the lubrication fittings. See SERVICE PARTS on page 35. Sno-Thro should be lubricated (Figure 26) at beginning of season or every 25 operating hours.
SERVICE AND ADJUSTMENTS SHEAR BOLTS WARNING: AVOID INJURY. Read and understand the entire Safety section before proceeding. SCRAPER BLADE IMPORTANT: Damage to housing will result if blade wears down too far. Scraper blade is adjustable to compensate for wear. To adjust scraper blade: 1. Tip unit back onto handlebar, support housing and loosen nuts retaining blade. 2. Reposition scraper blade and tighten lock nuts. 3. Ajust skid shoes.
REMOTE DEFLECTOR CONTROL ADJUSTMENT DISCHARGE CHUTE (921028, 029) (Figure 29) Deflector must stay in selected position while throwing snow. If deflector does not stay in set position: 1. Tighten nut beneath control panel to increase pressure on deflector control (Figure 29). (Figure 30) If chute does not stay in position while throwing snow or if chute does not rotate freely, adjust the cable under the gear cover so the chute lock fingers engage or disengage the locking gear.
SPEED SELECTOR ADJUSTMENT (Figure 32) To adjust: 1. Disconnect adjustment pivot pin from speed selector lever by removing hairpin. 2. Place the speed selector on the control panel in the fastest forward speed position. 3. Turn the speed selector lever straight down towards the ground as far as it will go. 4. Thread the adjustment pivot pin along the shift rod until it aligns with the mating hole on the speed selector lever. Insert the pivot pin into hole. 5. Secure adjustment pivot pin with hairpin. 6.
OS7189 Roller should be 1/2 – 7/8" (12.7 – 22.2 mm) from the frame when the attachment clutch is engaged. Figure 35 With the attachment clutch disengaged, check the attachment idler arm position here. The attachment idler arm should lightly touch the frame. Check Attachment Brake Figure 34 Check Attachment Idler Arm Roller Clearance (Figure 35) 1. Place the unit into the service position. Remove the bottom cover. 2.
Check Belt Finger Clearance 1. With attachment clutch lever engaged, the belt finger located opposite the belt idler must be less than 1/8" (3 mm) from belts, but not touching the belts (Figure 37). To adjust belt finger, loosen the bolts and move the finger to the proper position. Tighten the bolts and recheck the belt finger clearance. 2. Replace the belt cover and tighten hardware. 1 2 Check belt finger clearance here.
921023, 024, 030, 032, 035 2 1 2 3 4 1 921028, 029 2 7 3 3 5 6 1 1. 2. 3. 4. 5. 6. 7. 4 1. 2. 3. 4. Belt Cover Chute Gear Cover Discharge Chute Rod Chute Lock Cable Traction Drive Belt Engine Sheave Attachment Drive Belts Belt Finger Attachment Belt Idler Attachment Idler Adjustment Nut Traction Belt Idler Figure 39 5. Check adjustment. See Attachment Clutch/Brake Adjustment on page 29.
4. Pull idler away from traction drive belt and remove belt from idler pulley, engine sheave and driven pulley (it may be necessary to turn engine pulley using recoil starter handle). 7 8 2 3 5 1 6 9 4 1. Swing Gate Spacer 2. Drive Plate Assembly 3. Traction Belt Idler 4. Attachment Drive Belts 5. Traction Drive Belt 6. Engine Sheave 7. Friction Disc 8. Drive Plate Finger 9. Swing Gate Pivot Bushing Figure 40 5. Install new traction drive belt onto driven pulley and engine sheave. 6.
5 1 To adjust (Figure 43): 1. Tighten the adjuster nut to tighten the track tension. Loosen the adjuster nut to reduce track tension. 2. Check that unit tracks straight with no pulling to either side. 3 7 2 Track Adjusters OS7228 Figure 43 4 6 1. 2. 3. 4. 5. 6. 7. HEIGHT ADJUSTER CABLE ADJUSTMENT (921023) Hex Shaft Bearing Flange Speed Selector Arm Friction Disc Spring Clip Drive Plate Assembly Drive Sprocket (Figure 44) 1. Make sure that height adjustment lock finger is fully engaged (Figure 44).
SERVICE PARTS STORAGE Order the following parts through your Dealer: WARNING: AVOID INJURY. Read and understand the entire Safety section before proceeding. Part No. Description 00036800 Ariens Hi-Temp Grease (3.3 oz cartridges ) SHORT TERM 00592900 Fuel Stabilizer (4 oz.) IMPORTANT: NEVER spray unit with high pressure water or store unit outdoors. Run with attachment clutch engaged a few minutes after each use to free unit of any loose or melting snow. Close fuel shut-off valve.
TROUBLESHOOTING PROBLEM Engine will not crank/start. Engine stops. PROBABLE CAUSE 1. Fuel tank is empty. 2. Fuel shut-off valve closed. 3. Build up of dirt and residue around governor/carburetor. 4. Key Switch not in run position. 5. Electric starter not functioning. 1. Out of fuel. CORRECTION 1. Fill fuel tank (see FILLING FUEL TANK on page 20). 2. Open fuel shut-off valve. 3. Clean area around governor/carburetor. 4. Put Key Switch into run position. 5. Check for a bad starter or connections. 4.
SPECIFICATIONS Model Number Description 921032 921028 921029 Deluxe 30 Deluxe 24 Platinum Deluxe 30 Platinum 14.5 (19.66) 14.5 (19.66) Engine Ariens AX Engine Gross Torque* – lbf-ft (N•m) 20.0 (27.12) *Engine output stated in gross torque per SAE J1940 as rated by engine manufacturer Displacement – in. (cc) 17.76 (291) 17.76 (291) 25.26 (414) 3600 ± 50 High Idle – RPM (min) 120 V Electric Start 3.8 (3.
SPECIFICATIONS Model Number Description 921030 921023 921035 921024 Deluxe 28 Deluxe 28 Track Deluxe 28 Deluxe 24 Ariens AX Briggs & Stratton Polar Force 1150 Briggs & Stratton Polar Force 1150 Ariens AX 12.5 (16.95) 11.5 (15.59) Engine Engine Model Gross Torque* – lbf-ft (N•m) 11.5 (15.59) 12.5 (16.95) *Engine output stated in gross torque per SAE J1940 as rated by engine manufacturer Displacement – in. (cc) 15.50 (254) 15.19 (249) 15.19 (249) 15.
Sno-Thro®, Sno-Tek® and Chore Performing Equipment Limited 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 1/1/2012 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 Exception Warranty Period Use Detail All Batteries 1 Year All All Belts, Muffler, Tires None Commercial These components are not covered when used commercially. All Cloth, Plastic, and Rubber Components (Including Belts and Cables) Maximum 2 Years All Warranty is limited to 2 years for consumer use. (1 year for warranty code "PD".
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.
Ariens 655 West Ryan Street Brillion, WI 54110 920-756-4688 www.ariens.
