Ariens Sno-Thro 921038 Platinum 24 SHO Service Manual
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Ariens Sno-Thro 921038 Platinum 24 SHO Service Manual

Ariens Sno-Thro 921038 Platinum 24 SHO Service Manual

Platinum series
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See also: Owner's/operator's Manual
®
Sno-Thro
Service Guide
Platinum Series
Models
921038 – Platinum 24 SHO
(SN 100000 +)
921039 – Platinum 28 SHO Track
(SN 000101 +)
921040 – Platinum 30 SHO
(SN 100000 +)
E10
ENGLISH
04856400 • 8/15

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Summary of Contents for Ariens Sno-Thro 921038 Platinum 24 SHO

  • Page 1 ® Sno-Thro Service Guide Platinum Series Models 921038 – Platinum 24 SHO (SN 100000 +) 921039 – Platinum 28 SHO Track (SN 000101 +) 921040 – Platinum 30 SHO (SN 100000 +) ENGLISH 04856400 • 8/15...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS SAFETY ......3 DIFFERENTIAL GEAR REPLACEMENT . . . 31 PRACTICES &...
  • Page 3 Installing unauthorized parts will not automatically void the warranty; however, the warranty will not apply if the installation and use of unauthorized parts damages the unit. The Ariens warranty applies solely to defects in Ariens materials and / or factory workmanship. Ariens disclaims liability for any claims or damages –...

  • Page 4: Safety

    SIGNAL WORDS SAFETY The safety alert symbol above and signal words below are Read these safety rules and follow them closely. Failure to used on decals and in this manual. Read and understand follow these rules could lead to loss of control of unit, all safety messages.

  • Page 5: Safety Decals

    SAFETY DECALS Stop engine, remove key, and read manual The safety decals on your machine are visual reminders of before making any repairs or adjustments. the important safety information in this manual. All messages on your unit must be fully understood and carefully followed.

  • Page 6: Safety Rules

    SAFETY RULES Handle fuel with care; it is highly flammable. • Use an approved fuel container. The following safety instructions are based on the B71.3 specifications of the American National Standards Institute • Never add fuel to a running engine or hot engine. in effect at the time of production.

  • Page 7: Clearing A Clogged Discharge Chute

    After striking a foreign object, stop the engine, remove the Never operate the snow thrower without good visibility or wire from the spark plug, disconnect the cord on electric light. Always be sure of your footing, and keep a firm hold motors, thoroughly inspect the snow thrower for any on the handles.

  • Page 8: Slope Operation

    Accessories operation or while performing an adjustment or repair to protect eyes from foreign objects that may be thrown from Use only Ariens Company-recommended attachments or the machine. accessories that are designed for your unit and that are appropriate to your use and can be used safely in your Slope Operation application.

  • Page 9: Draining Fuel System

    DRAINING FUEL SYSTEM SERVICE POSITION Move unit to an open, well-ventilated area with no WARNING: AVOID INJURY. Before placing unit flames or sparks. in service position, close fuel valve and drain fuel Remove cap from fuel tank and siphon fuel into a from tank and fuel system.

  • Page 10: Bottom Cover Removal

    BOTTOM COVER REMOVAL See Figure 5. Remove hardware retaining bottom cover to frame and remove cover. WARNING: AVOID INJURY. Before placing unit in service position, close fuel valve and drain fuel from tank and fuel system. See Draining Fuel System on page 8. Make sure unit is secure and will not tip.

  • Page 11: Separate Auger Housing From Frame

    SEPARATE AUGER HOUSING FROM FRAME NOTICE: Save all hardware for reinstallation. Stop engine, remove key and wait for all moving parts to stop and for hot parts to cool. Disconnect spark plug wire from engine. See Figure 7. Remove hardware retaining chute gear cover to chute pedestal and remove cover.
  • Page 12 See Figure 10. See Figure 12. 13. Remove chute deflector cable from J-clamp on engine 15. Remove hardware securing belt finger to engine and mount. remove belt finger. 16. Remove attachment drive belts from attachment sheave. 1. J-Clamp 2. Chute Deflector Cable Figure 10 See Figure 11.

  • Page 13: Attachment Drive Belt Replacement

    ATTACHMENT DRIVE BELT See Figure 13. 17. Position support, such as a trash can, under REPLACEMENT handlebars so tractor / frame remains upright when Remove Attachment Drive Belts separated from auger housing. 18. Chock or block wheels to prevent tractor / frame NOTICE: Save all hardware for reinstallation.
  • Page 14 Install Attachment Drive Belts Install belts onto attachment drive pulley See Figure 16. With a helper, engage attachment clutch lever so attachment brake will not obstruct attachment drive pulley in step 3. Tilt auger housing rear up and lower into frame so housing mount brackets sit on mount rod.

  • Page 15: Traction Drive Belt Replacement

    TRACTION DRIVE BELT Install Traction Drive Belt REPLACEMENT See Figure 19. Install belt onto traction drive pulley. Remove Traction Drive Belt Install belt onto traction sheave. NOTICE: Save all hardware for reinstallation. Move swing gate so swing gate tab aligns with stop Stop engine, remove key and wait for all moving parts hole in frame.

  • Page 16: Attachment Brake Replacement

    11. Adjust traction drive clutch. Refer to Operator’s ATTACHMENT BRAKE REPLACEMENT Manual for adjustment procedure. Remove Attachment Brake 12. Reconnect spark plug wire. NOTICE: Save all hardware for reinstallation. IMPORTANT: Check all adjustments after first use. Stop engine, remove key and wait for all moving parts to stop and for hot parts to cool.
  • Page 17 Attachment Clutch Disengaged / Brake Engaged WARNING: AVOID INJURY. Before placing unit in service position, close fuel valve and drain fuel from tank and fuel system. See Draining Fuel System on page 8. Make sure unit is secure and will not tip. Place unit in service position.

  • Page 18: Friction Disc Replacement

    FRICTION DISC REPLACEMENT Remove Friction Disc NOTICE: Save all hardware for reinstallation. WARNING: AVOID INJURY. Before placing unit in service position, close fuel valve and drain fuel from tank and fuel system. See Draining Fuel System on page 8. Make sure unit is secure and will not tip.
  • Page 19 10. Remove friction disc assembly from unit. Secure friction disc to drive carrier with three tapping screws. Torque to 7 – 8 N•m (5 – 6 lb-ft). See Figure 29. Reinstall friction disc assembly into shift fork so shift fork bracket and flat steel washer are positioned against shift fork as shown.

  • Page 20: Auger Replacement

    AUGER REPLACEMENT Remove Auger NOTICE: Save all hardware for reinstallation. Stop engine, remove key and wait for all moving parts to stop and for hot parts to cool. Disconnect spark plug wire from engine. Separate auger housing from frame. See Separate Auger Housing From Frame on page 10.
  • Page 21 See Figure 32. See Figure 34. Remove hardware securing support bushings to auger 10. Remove support bushing and flange bushing from housing. auger shaft end. Remove hardware securing support brackets to auger 11. Remove shear bolt from auger shaft. housing. 12.
  • Page 22 Align holes in bushings on auger ends with holes in housing and partially thread all six tapping screws. Tighten tapping screws. Secure support brackets to auger housing with two round head square neck bolts and two top locking flange nuts. See Figure 37.

  • Page 23: Auger Gearcase Replacement

    AUGER GEARCASE REPLACEMENT See Figure 39. Remove two roll pins securing impeller to impeller Remove Gearcase Assembly shaft and remove impeller. Use of penetrating oil or NOTICE: Save all hardware for reinstallation. heat may be necessary to remove impeller. Stop engine, remove key and wait for all moving parts to stop and for hot parts to cool.

  • Page 24: Impeller Replacement

    IMPELLER REPLACEMENT Install Impeller Install impeller onto impeller shaft. Remove Impeller Align holes in impeller with holes in impeller shaft and NOTICE: Save all hardware for reinstallation. reinstall roll pins. Stop engine, remove key and wait for all moving parts See Figure 36.

  • Page 25: Engine Replacement

    ENGINE REPLACEMENT See Figure 41. Remove attachment drive belt from attachment Remove Engine sheave. NOTICE: Save all hardware for reinstallation. Remove hardware securing attachment sheave to Drain gasoline from fuel system and tank. See crankshaft. Draining Fuel System on page 8. Remove hardware securing engine to frame.
  • Page 26 Align attachment sheave key with crankshaft keyway and reinstall attachment sheave onto crankshaft. Secure with locking washer and hex bolt and tighten hardware. Reinstall attachment drive belts onto attachment sheave. Reinstall belt finger and secure with two flat steel washers, two locking washers and two hex bolts as shown in Figure 17.

  • Page 27: Traction Drive Cable Replacement

    TRACTION DRIVE CABLE See Figure 45. Disconnect lower traction drive cable from upper REPLACEMENT traction drive cable. Remove Traction Drive Cable Loosen, but DO NOT remove shoulder bolt retaining NOTICE: Save all hardware for reinstallation. cable pulley to cable pulley bracket. Remove cable from cable pulley and remove cable WARNING: AVOID INJURY.

  • Page 28: Axle Bushing Replacement (Left Side)

    AXLE BUSHING REPLACEMENT Install Axle Bushing (LEFT SIDE) Pre-tap new bushing with original tapping screws. Install bushing onto axle. Remove Left Axle Bushing Secure bushing to frame with three tapping screws NOTICE: Save all hardware for reinstallation. from inside frame and tighten hardware. Reinstall flat steel washer and key onto axle.

  • Page 29: Axle Bushing Replacement (Right Side)

    AXLE BUSHING REPLACEMENT See Figure 48. Remove spring clip from left side of pinion shaft. (RIGHT SIDE) Remove Axle Bushing NOTICE: Save all hardware for reinstallation. WARNING: AVOID INJURY. Before placing unit in service position, close fuel valve and drain fuel from tank and fuel system.
  • Page 30 See Figure 50. 11. Remove key and flat steel washer from axle. 12. Remove hardware securing bushing to frame. 13. Remove bushing. 1. Long Axle 2. Differential Gear 3. Sleeve Bushing 1. Key 4. Short Axle 2. Flat Steel Washer 5.

  • Page 31: Flange Bushing Replacement

    FLANGE BUSHING REPLACEMENT Install Flange Bushings Insert flange bushings into pinion sprocket Remove Flange Bushing Reinstall pinion sprocket into chain. NOTICE: Save all hardware for reinstallation. Position sleeve bushing between pinion sprocket and frame. WARNING: AVOID INJURY. Before placing unit in service position, close fuel valve and drain fuel Insert pinion shaft through pinion sprocket, sleeve from tank and fuel system.

  • Page 32: Bearing Flange Replacement

    BEARING FLANGE REPLACEMENT DIFFERENTIAL GEAR REPLACEMENT Remove Bearing Flange Remove Differential Gear NOTICE: Save all hardware for reinstallation. NOTICE: Save all hardware for reinstallation. WARNING: AVOID INJURY. Before placing unit WARNING: AVOID INJURY. Before placing unit in service position, close fuel valve and drain fuel in service position, close fuel valve and drain fuel from tank and fuel system.

  • Page 33: Chute Gear Replacement

    See Figure 56. CHUTE GEAR REPLACEMENT Move long axle left and remove from differential gear. Remove Chute Rotation Gear Remove differential gear from short axle. NOTICE: Save all hardware for reinstallation IMPORTANT: Make sure sleeve bushing remains inside Stop engine, remove key and wait for all moving parts short axle.
  • Page 34 Position chute rotation lever upright. Position discharge chute facing forward. Reinstall hex rod into chute gear and secure with hairpin. Reinstall chute gear cover and secure with tapping screw. Adjust discharge chute. Refer to Operator’s Manual for adjustment procedure. Reconnect spark plug wire. IMPORTANT: Check all adjustments after first use.

  • Page 35: Scraper Blade Replacement

    SCRAPER BLADE REPLACEMENT See Figure 62. Slowly tip unit back so it rests on handlebars. Remove Scraper Blade Remove remaining hardware securing scraper blade NOTICE: Save all hardware for reinstallation. to auger housing and remove scraper blade. WARNING: AVOID INJURY. Before tipping unit onto handlebars, close fuel valve and drain fuel from tank and fuel system.

  • Page 36: Track Drive Wheel Replacement

    TRACK DRIVE WHEEL REPLACEMENT Install Track Drive Wheel Align keyway in track drive wheel with key on drive Remove Track Drive Wheel axle and install wheel onto axle. NOTICE: Save all hardware for reinstallation. Align track drive wheel with track center and secure with snap ring.

  • Page 37: Track Replacement

    TRACK REPLACEMENT Install Track See Figure 66. Remove Track IMPORTANT: Tracks are directional and must be installed NOTICE: Save all hardware for reinstallation. with treads in the orientation shown in Figure 66. Install track onto carriage assembly so bogie wheels WARNING: AVOID INJURY.

  • Page 38: Bogie Wheel Replacement

    BOGIE WHEEL REPLACEMENT BEARING FLANGE REPLACEMENT (TRACK MODELS) Remove Bogie Wheel Remove Bearing Flange From Left Side of NOTICE: Save all hardware for reinstallation. Unit WARNING: AVOID INJURY. Before placing unit NOTICE: Save all hardware for reinstallation. in service position, close fuel valve and drain fuel from tank and fuel system.
  • Page 39 See Figure 69. See Figure 71. Remove flat steel washer and sleeve bushing from 12. Remove sleeve bushing seated between bearing axle. flanges on side plate and frame. 10. Remove axle from unit. 13. Remove hardware securing bearing flange and remove bearing flange.
  • Page 40 See Figure 72. Remove Bearing Flange From Right Side of Unit Reinstall stepped-down end of long axle through side plate and frame until halfway through frame. NOTICE: Save all hardware for reinstallation. Reinstall sleeve bushing and flat steel washer onto axle.
  • Page 41 See Figure 74. NOTICE: Sleeve bushing against frame interior will become free when pinion shaft is moved in next step. Remove spring clip from left side of pinion shaft and move pinion shaft left until removed from pinion sprocket. 10. Remove pinion sprocket from chain. 1.

  • Page 42: Service Parts

    SERVICE PARTS Description Part No. Spark Plug 21547400 Attachment Drive Belt 07200703 Traction Drive Belt 07200717 Friction Disc 00170800 1. Pinion Sprocket 2. Long Axle 3. Differential Gear Figure 76 10. Reinstall roll pin into axle. 11. Reinstall E-ring onto right axle end. 12.

  • Page 43: Service Record

    SERVICE RECORD DATE SERVICE PERFORMED NOTES EN – 42...
  • Page 44 655 West Ryan Street Brillion, WI 54110 ariensstore.com ariens.custhelp.com...

This manual is also suitable for:

Sno-thro 921039 platinum 28 sho trackSno-thro 921040 platinum 30 sho

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