Service Guide Model 920402 – Sno-Tek 24E (SN 175000 +) E10 ENGLISH 04854400 • 4/15
TABLE OF CONTENTS SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 PRACTICES & LAWS . . . . . . . . . . . . . . . . . . 3 REQUIRED OPERATOR TRAINING . . . . . . . 3 SAFETY ALERT SYMBOL . . . . . . . . . . . . . . 3 SIGNAL WORDS . . . . . . . . . . . . . . . . . . . . . . 3 SAFETY DECALS . . . . . . . . . . . . . . . . . . . . . 4 SAFETY RULES . . . . . . . . . . . . . . . . . . . . . . 5 DRAINING FUEL SYSTEM . . . . . . . . . . . . . . 8 SERVICE POSITION . . . . . . . . . . . . . . . . . .
WELCOME Before operating or servicing the unit, carefully and completely read the Operator’s Manual and engine manual provided with the unit at time of purchase. They contain important safety instructions and information about unit controls. Have Questions or Need Assistance? www.ariens.com 920-756-4688 To find your nearest authorized Ariens service dealer, visit ariens.com and click “Where to Buy”. A Parts Manual and an Operator’s Manual for your unit is available for free download or purchase at www.
SIGNAL WORDS SAFETY Read these safety rules and follow them closely. Failure to follow these rules could lead to loss of control of unit, severe personal injury or death to you or bystanders, or result in damage to property or the machine. The safety alert symbol above and signal words below are used on decals and in this manual. Read and understand all safety messages. 1. Danger DANGER: Indicates an IMMINENTLY HAZARDOUS SITUATION! If not avoided, WILL RESULT in death or serious injury.
SAFETY DECALS Stop engine, remove key, and read manual before making any repairs or adjustments. 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 decals on the machine are explained below. Read Operator’s Manual. Always replace missing or damaged safety decals. Replacement decal information is in the parts manual for your machine.
SAFETY RULES Handle fuel with care; it is highly flammable. The following safety instructions are based on the B71.3 specifications of the American National Standards Institute in effect at the time of production. • Use an approved fuel container. Training Read, understand and follow all instructions on the machine and in the manual(s) before operating this unit. Be thoroughly familiar with the controls and the proper use of the equipment. Know how to stop the unit and disengage the controls quickly.
After striking a foreign object, stop the engine, remove the wire from the spark plug, disconnect the cord on electric motors, thoroughly inspect the snow thrower for any damage, and repair the damage before restarting and operating the snow thrower. If the unit should start to vibrate abnormally, stop the engine and check immediately for the cause. Vibration is generally a warning of trouble.
Always refer to operator's manual for important details if the snow thrower is to be stored for an extended period. Never fill fuel 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. Maintain or replace safety and instruction labels as necessary. When practical, remove gas-powered equipment from the truck or trailer and refuel it on the ground.
DRAINING FUEL SYSTEM 1. Move unit to an open, well-ventilated area with no flames or sparks. 2. Remove cap from fuel tank and siphon fuel into a clean gasoline container. SERVICE POSITION 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. 3. Reinstall cap onto fuel tank and tighten. 4.
BOTTOM COVER REMOVAL See Figure 4. 5. 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. 1. Stop engine, remove key and wait for all moving parts to stop and for hot parts to cool. 2. Disconnect spark plug wire from engine. 3. Place unit in service position. See Service Position on page 8.
SEPARATE AUGER HOUSING FROM FRAME NOTICE: Save all hardware for reinstallation. 1. Stop engine, remove key and wait for all moving parts to stop and for hot parts to cool. 2. Disconnect spark plug wire from engine. 4 See Figure 5. 3. Remove spring clip from chute rotation rod and remove rod. 1 1 3 5 2 1. 2. 3. 4. 5. 2 Sleeve Bushing Hairpin Cable Snap Deflector Arm Deflector Anchor Figure 6 See Figure 7. 6. Loosen, but DO NOT remove hardware securing belt cover to unit and remove belt cover.
See Figure 8. See Figure 9. 7. Remove hardware securing belt finger to engine and remove belt finger. 9. 8. Remove attachment drive belt from attachment sheave. Position support, such as a trash can, under handlebars so tractor / frame remains upright when separated from auger housing. 5 4 6 3 2 Figure 9 1 See Figure 10. 10. Remove hardware securing auger housing to frame. 11. Tip auger housing apart from frame on mount rod and separate housing from unit. 1. 2. 3. 4. 5. 6.
ATTACHMENT DRIVE BELT REPLACEMENT Remove Attachment Drive Belt NOTICE: Save all hardware for reinstallation. 1. Stop engine, remove key and wait for all moving parts to stop and for hot parts to cool. 2. Disconnect spark plug wire from engine. 3. Separate auger housing from frame. See Separate Auger Housing from Frame on page 10. 1 See Figure 11. 4. Remove attachment drive belt from attachment drive pulley. 3 2 1. Attachment Brake 2. Mount Rod 3. Mount Bracket Figure 12 1 2 1.
TRACTION DRIVE BELT REPLACEMENT Remove Traction Drive Belt NOTICE: Save all hardware for reinstallation. 4 1. Stop engine, remove key and wait for all moving parts to stop and for hot parts to cool. 2. Disconnect spark plug wire from engine. 3. Separate auger housing from frame. See Separate Auger Housing from Frame on page 10. 5 See Figure 14. 6 4. Disconnect idler spring from traction drive idler. 5. Disconnect swing gate return spring from frame. 6.
Install Traction Drive Belt 9. See Figure 15. 10. Adjust traction drive clutch. Refer to Operator’s Manual for adjustment procedure. 1. Install belt onto traction drive pulley. 2. Install belt onto traction sheave. 3. Move swing gate so swing gate tab aligns with stop hole in frame. 11. Reconnect spark plug wire. IMPORTANT: Check all adjustments after first use. IMPORTANT: Make sure support bushing is correctly seated in frame and is flush with frame. 4.
ATTACHMENT BRAKE REPLACEMENT See Figures 17 and 18. Remove Attachment Brake 5. NOTICE: Save all hardware for reinstallation. 1. Stop engine, remove key and wait for all moving parts to stop and for hot parts to cool. 2. Disconnect spark plug wire from engine. 3. Separate auger housing from frame. See Separate Auger Housing from Frame on page 10. Engage and disengage attachment clutch to verify brake roller on attachment idler does not interfere with brake pad.
8. Remove bottom cover. See Bottom Cover Removal on page 9. See Figure 19. 9. FRICTION DISC REPLACEMENT Remove Friction Disc NOTICE: Save all hardware for reinstallation. Check attachment brake: • Brake must contact attachment belt when attachment clutch is disengaged. 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. • Brake must be more than 1.
See Figure 21. See Figure 23. 6. Remove spring clip from right side of hex shaft. 7. Remove hardware securing left flange bearing to frame and remove flange bearing. 10. Remove hardware securing friction disc to drive carrier and remove friction disc. 2 2 3 1 3 4 1. 2. 3. 4. 1. Friction Disc 2. Drive Carrier 3. Tapping Screw 1 Flange Bearing Hex Shaft Spring Clip Tapping Screw Figure 23 Install Friction Disc Figure 21 1.
AUGER REPLACEMENT Remove Auger NOTICE: Save all hardware for reinstallation. 2 1. Stop engine, remove key and wait for all moving parts to stop and for hot parts to cool. 2. Disconnect spark plug wire from engine. 3. Separate auger housing from frame. See Separate Auger Housing from Frame on page 10. See Figure 25. 4. Remove hardware securing attachment drive pulley assembly to auger housing and remove pulley assembly. 5. Loosen, but DO NOT remove hardware securing bearing plate to housing.
See Figure 26. 6. 3 Remove hardware securing auger bushings to auger housing. 2 1 1 2 1. Tapping Screw 2. Auger Bushing Figure 26 1. Shear Bolt 2. Bushing 3. Auger Figure 28 See Figure 27. 7. Remove auger assembly from auger housing. Install Auger See Figure 29. 1. Install auger onto auger shaft with auger kickers facing gearcase. IMPORTANT: Make sure auger helix direction matches the original auger orientation. 2.
4. 5. Align holes in auger with holes in auger shaft and reinstall shear bolt. Torque bolt to 5.8 – 12.2 lbf-ft (7.9 – 16.5 N•m). If torque wrench is unavailable, tighten until bolts no longer spin freely. DO NOT overtighten. 5 Reinstall bushing onto auger shaft end. See Figure 30. 6. Reinstall auger assembly into auger housing so impeller shaft is seated in ball bearing at rear of housing. 3 1 2 1. 2. 3. 4. 5.
AUGER GEARCASE REPLACEMENT IMPELLER REPLACEMENT Remove Gearcase Assembly Remove Impeller NOTICE: Save all hardware for reinstallation. NOTICE: Save all hardware for reinstallation. 1. Stop engine, remove key and wait for all moving parts to stop and for hot parts to cool. 1. Stop engine, remove key and wait for all moving parts to stop and for hot parts to cool. 2. Disconnect spark plug wire from engine. 2. Disconnect spark plug wire from engine. 3. Remove augers. See Remove Auger on page 18.
ENGINE REPLACEMENT Remove Engine NOTICE: Save all hardware for reinstallation. 1. Drain gasoline from tank and fuel system. See Draining Fuel System on page 8. 2. Stop engine, remove key and wait for all moving parts to stop and for hot parts to cool. 3. Disconnect spark plug wire from engine. 2 3 4 See Figure 33. 4. Loosen, but DO NOT remove hardware retaining belt cover to unit and remove belt cover. 5. Disconnect idler spring from traction drive idler and frame and remove spring. 6.
TRACTION DRIVE CABLE REPLACEMENT Install Engine 1. Lower engine onto frame so weld screws in frame insert through mounting holes in engine base. 2. Reinstall four locking washers over weld screws and secure with hex nuts. Torque to 8.8 – 13.2 lbf-ft (11.9 – 17.9 N•m). 3. Align traction sheave key with crankshaft keyway and reinstall traction sheave onto crankshaft. 4. Reinstall traction drive belt onto traction sheave. 5. Reinstall idler spring to traction drive idler and frame. 6.
See Figure 37. AXLE BUSHING REPLACEMENT 6. Disconnect lower traction drive cable from upper traction drive cable. Remove Bushing 7. Loosen, but DO NOT remove shoulder bolt retaining cable pulley to cable pulley bracket. 8. Remove cable from cable pulley and remove cable from unit. 5 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.
Install Bushing CHUTE GEAR REPLACEMENT 1. Install new bushing onto axle and align holes with holes in frame. Remove Pinion Gear 2. Secure bushing to frame with two tapping screws from inside frame and tighten hardware. See Figure 39. 3. If reinstalling bushing on right side of frame, align spur gear with pinion gear, center axle and reinstall roll pin into axle. NOTICE: Save all hardware for reinstallation unless specified otherwise. 1.
See Figure 41. See Figure 42. 5. Remove push nut from pinion gear and discard. 5. 6. Remove pinion gear and flat steel washer from pinion gear bracket. Remove hex nut from round head square neck bolt. Catch compression spring, friction plate, and friction washer as they fall off bolt. 6. Remove round head square neck bolt from pedestal plate and remove chute rotation gear. 2 1 4 3 5 6 4 3 7 1. 2. 3. 4.
Install Chute Rotation Gear SCRAPER BLADE REPLACEMENT 1. Remove Scraper Blade Position discharge chute facing forward. See Figure 43. 2. Position chute rotation gear on chute mount so gear teeth at halfway point align with pinion gear. 3. 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.
SERVICE PARTS Description Part No.
SERVICE RECORD DATE SERVICE PERFORMED EN – 29 NOTES
655 West Ryan Street Brillion, WI 54110 920-756-4688 Fax 920-756-2407 www.ariens.com www.ariens.com.
