Ariens Sno-Thro ST520E Owner's/Operator's Manual
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Ariens Sno-Thro ST520E Owner's/Operator's Manual

Ariens Sno-Thro ST520E Owner's/Operator's Manual

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Sno-Thro
®
Owner/Operator Manual
Model
920001 – ST624E
920003 – ST520E
03381000 4/08
ENGLISH
Printed in USA

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Summary of Contents for Ariens Sno-Thro ST520E

  • Page 1 Sno-Thro ® Owner/Operator Manual Model 920001 – ST624E 920003 – ST520E 03381000 4/08 ENGLISH Printed in USA...

  • Page 2: Table Of Contents

    Manuals in languages other than English may position and facing the direction of forward be obtained from your Dealer. Visit your travel. dealer or www.ariens.com for a list of languages available for your equipment. ENGINE MANUAL Manuals printed in languages other than...
  • Page 3 UNAUTHORIZED REPLACEMENT 5. Review Limited Warranty Policy. PARTS 6. Fill out a Product Registration Card and return the card to the Ariens Company or Use only Ariens replacement parts. The go to www.ariens.com. replacement of any part on this vehicle with...

  • Page 4: Safety

    SAFETY PRACTICES AND LAWS WARNING: To avoid injury to hands Practice usual and customary safe working and feet, always disengage clutches, precautions, for the benefit of yourself and shut off engine, and wait for all others. Understand and follow all safety movement to stop before unclogging messages.
  • Page 5 3. DANGER! Keep people away from unit while operating. Keep children out of work area and under watchful care ROTATING PARTS. of a responsible adult. Keep clear of auger while engine is running. OL4370 • Read Operator’s Manual. • Allow operation only by Never direct discharge towards OS2080 properly trained adult,...
  • Page 6 DO NOT operate near drop-offs, ditches, or ALWAYS disengage attachment, stop unit embankments. Unit can suddenly turn over if and engine, remove key and allow moving a wheel is over the edge of a cliff or ditch, or if parts to stop before leaving operator’s an edge caves in.
  • Page 7 Never leave a running unit unattended. When practical, remove gas-powered ALWAYS shut off engine before leaving unit. equipment from the truck or trailer and refuel ALWAYS remove key to prevent unauthorized it on the ground. If this is not possible, then use.

  • Page 8: Assembly

    ASSEMBLY 5. Install and tighten all wing knobs and wing nuts on the handlebar assembly WARNING: AVOID INJURY. Read and shift rod. and understand the entire Safety section before proceeding. WARNING: Dropping or tipping over boxed unit could result in personal injury or damage to unit.
  • Page 9 Check Function of Dual Handle Interlock 1. Mounting Hardware 2. Discharge Chute Without the engine running, press down 3. Discharge Chute Ring (engage) both clutch levers. Release 4. Chute Pedestal attachment clutch lever. Attachment clutch should remain engaged until traction clutch lever is released, then both clutches must disengage.

  • Page 10: Controls And Features

    3. Stop unit, wait for all moving parts to 5. Adjust clutch idler according to stop, and remove spark plug wire. Attachment Clutch/Brake Adjustment on page 22. 4. Adjust belt finger, if necessary. See Attachment Drive Belt Replacement on page 20. CONTROLS AND FEATURES 1.

  • Page 11: Operation

    OPERATION IMPORTANT: If the belt squeals when the WARNING: AVOID INJURY. Read attachment clutch lever is engaged, the and understand the entire Safety impeller may be frozen in the auger housing. section before proceeding. Immediately release the attachment clutch lever and move the unit into a heated area to thaw.
  • Page 12 Choke Control Knob 1.Choke Closed position: chokes off air to engine for easier start. 2.Choke Open position: allows for normal operation. IMPORTANT: Gradually open choke after engine starts. Throttle The throttle controls the engine speed. To increase or 1. Snow Clean-Out Tool decrease the engine speed, Figure 8 adjust to:...
  • Page 13 Axle Lock Pin (Figure 9) FILLING FUEL TANK Use the axle lock pin to lock or unlock the right or left wheel. Lock both wheels to WARNING: AVOID INJURY. Read increase traction; unlock one wheel to allow and understand the entire Safety for easier turning of the unit.
  • Page 14 3. If Impeller is frozen, (cannot pull Starter STARTING AND SHUT OFF Handle) move unit to a heated area and thaw to prevent possible damage. WARNING: FAILURE TO FOLLOW 2. Check Function of Clutches INSTRUCTIONS could result in If clutches do not engage or disengage personal injury and/or damage to properly, adjust or repair before operation.
  • Page 15 Electric Start (120V) SNOW REMOVAL 1. Connect extension cord to starter. IMPORTANT: Allow unit and engine to adjust to the outdoor temperature before clearing IMPORTANT: Prevent damage to unit. Know snow. voltage of your starter and only use matching outlets. NOTE: Attachment clutch should be engaged before wheel drive clutch when throwing 2.

  • Page 16: Maintenance

    MAINTENANCE MAINTENANCE SCHEDULE Ariens Dealers will provide any service or adjustments which may be required to keep The chart below shows the recommended your unit operating at peak efficiency. Should maintenance schedule that should be engine service be required, contact an Ariens performed on a regular basis.
  • Page 17 If clutches do not engage or disengage IMPORTANT: Use only Ariens special gear properly, adjust or repair before operation lubricant L-2 (Part Number 00008000). (see Attachment Clutch/Brake Adjustment on Gearcase filler plug may require an application of Loc-Tite®...

  • Page 18: Service And Adjustments

    Grease OS8050 Figure 13 SERVICE AND ADJUSTMENTS 2. Adjust runners by inserting a spacer of desired thickness under center of WARNING: AVOID INJURY. Read scraper blade, loosen runner hardware, and understand the entire Safety slide runners to flat surface. Allow 1/8 in. section before proceeding.
  • Page 19 SHEAR BOLTS IMPORTANT: Use only Ariens shear bolts for replacement. Use of any other type of shear bolt may result in severe damage to unit. Occasionally a foreign object may enter the auger/impeller housing and jam the auger, breaking shear bolts which secure the auger to the shaft (Figure 15).
  • Page 20 SPEED SELECTOR ADJUSTMENT To adjust (Figure 18): 1. Disconnect adjustment pivot pin from speed selector arm. Save hardware for reinstallation. 2. Place the speed selector on dash panel in the fastest forward speed position. 3. Turn the speed selector arm straight down towards the ground as far as it will 4.
  • Page 21 7. Remove hex bolts securing housing to frame (two on each side). Tip housing and frame apart on pivot pin. 8. Remove attachment drive belt from attachment pulley (hold brake away from belt). 1. Pinion Gear 4. Chute Crank 1. Traction Belt 5.
  • Page 22 TRACTION DRIVE BELT REPLACEMENT NOTE: Housing and frame must be tipped apart and attachment drive belt removed from engine sheave in order to change traction drive belt (Figures 19, 20, 21 and 24) CAUTION: Always support Sno-Thro frame and blower housing when loosening the cap screws holding them together.
  • Page 23 Remove Attachment Cable Slack With the attachment clutch disengaged, 1. Remove the belt cover. check the attachment idler arm position 2. Loosen jam nut on cable adjustment here. The attachment idler arm should barrel, and then turn the adjustment lightly touch the frame. barrel down to shorten cable and remove all cable slack.
  • Page 24 2. Adjust cable length (See Figure 27). Roller should be 1/2 – 7/8 in. (12.7 – 22.2 a. Loosen jam nut on cable. mm) from the frame when the attachment b. To increase spring extension, clutch is engaged. adjust barrel down the cable and tighten jam nut.
  • Page 25 2. If there is less than 1/16 in. (1.6 mm) TRACTION DRIVE CLUTCH gap between brake pad and belt, follow ADJUSTMENT these steps: If drive slips, adjust traction clutch to a. To increase brake pad gap, compensate for friction disc wear. loosen idler adjustment nut, and move idler away from belt.
  • Page 26 11. Remove old friction disc. Put the new friction disc in place, cup side to carrier bearing. 12. Reinstall three screws into new friction disc and carrier bearing. Torque to 5 – 6 lbf-ft. (6.8 – 8.13 N•m). 1. Traction Drive 4.

  • Page 27: Storage

    Keep all nuts, bolts and screws properly ACCESSORIES tightened and know unit is in safe working condition. See your authorized Ariens dealer to add the additional accessories available to your Store unit in a cool, dry protected area. Sno-Thro. LONG TERM Part No.

  • Page 28: Troubleshooting

    TROUBLESHOOTING PROBLEM PROBABLE CAUSE CORRECTION Engine will 1. Fuel tank is empty. 1. Fill fuel tank. 2. Fuel shut-off valve 2. Open fuel shut-off valve. closed. crank/start. 3. Build up of dirt and 3. Clean area around residue around governor/carburetor. governor/carburetor.

  • Page 29: Specifications

    SPECIFICATIONS Model Number 920001 920003 Description ST624E ST520E Engine - Tecumseh Tecumseh OH195SA LH195SA Power Max - HP (kW) 6.0 (4.5) 5.0 (3.7) Maximum RPM 3600 ± 150 3600 ± 150 Displacement - in. (cc) 11.88 (195) 11.88 (195) Electric Start 120V 120V Fuel...

  • Page 30: Warranty

    Genuine Ariens or Gravely brand service parts and accessories are warranted to be free from defects in material and workmanship for a period of 90 days after the date of purchase. An authorized Ariens dealer will repair or replace any such part or accessory free of charge, except for labor, during that period.
  • Page 31 Canada. In all other countries, contact place of purchase for warranty information. Disclaimer Ariens may from time to time change the design of its products. Nothing contained in this warranty shall be construed as obligating Ariens to incorporate such design changes into previously manufactured products, nor shall such changes be construed as an admission that previous designs were defective.
  • Page 32 Ariens Company 655 West Ryan Street Brillion, WI 54110-1072 920-756-2141 Fax 920-756-2407 www.ariens.com...

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