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manual abstract
4. Connect spark plug wire to spark plug. IMPELLER SHEAR BOLTS The impeller is secured to the impeller shaft with two (2) capscrew/shear bolts and hex nuts. Should a foreign object or ice become lodged in the impeller, the capscrews are de signed to break, preventing damage to any other compo nents. If impeller does not turn when auger control lever is engaged, check to see if the capscrews have sheared. To replace the capscrew/shear bolts: AUGER SHAFT 1/4-20 x 2 SHOULDER / SHEAR BOLT 1/4-20 LOCK NUT IMPELLER SHAFT 1/4-20 x 1-5/8 CAPSCREW / SHEAR BOLT 1/4-20 LOCKNUT IMPELLER HUB AUGER HUB AUGER HUB SERVICE AND ADJUSTMENTS 1. Disengage all controls and move throttle control to STOP position. Wait for all moving parts to stop. 2. Disconnect spark plug wire from spark plug and place wire where it cannot come in contact with plug. 3. Align holes in impeller hub with holes in impeller shaft and install two (2) new 1/4-20 x 1-5/8" capscrew/shear bolts. Install 1/4-20 locknuts and tighten securely. CAUTION: Do not substitute. Use only original equip ment capscrew/shear bolts as sup plied with your snow thrower. 4. Connect spark plug wire to spark plug. TO REMOVE BELT COVER (See Fig. 22) 1. Remove the two (2) screws securing belt cover to frame. 2. Remove belt cover. • Replace belt cover by installing cover and screws and tighten securely. BELT COVER FRAME SCREWS FIG. 22 FIG. 21 17 SERVICE AND ADJUSTMENTS TO REPLACE BELTS (See Fig. 23) The auger and traction drive belts are not adjustable. If the belts are damaged or begin to slip from wear, they should be replaced. It is recommended that the belt(s) be replaced by a qualifi ed service center. NOTE: It is recommended that both the auger and traction drive belt be replaced at the same time. The V-belts on your snow thrower are of special con struc tion and should be replaced by original equipment man u fac tur er (OEM) belts avail able from your nearest dealer. Using other than OEM belts can cause personal injury or damage to the snow thrower. WARNING: Belt replacement requires separation of the snow thrower. While separating the auger housing from the frame assembly, it is important that an assistant stand in the operating po si tion and hold the snow thrower han dles. Serious personal injury and/or damage to the unit could occur if the snow thrower should fall during the belt chang ing process. HINT: Insert a 3/8" drive ratchet (in the “ON” position) into the square hole in idler arm and rotate ratchet clockwise to relieve tension. 8. With tension relieved on idler, install new traction drive belt around pulleys and inside belt keepers. 9. Place auger belt around and inside the groove of auger pulley only. 10. While your assistant slowly raises handles to rejoin the auger hous ing and frame assembly, pull up on the auger belt and squeeze sides together above pulley so belt is fully seated in groove of pulley. 11. Bring snow thrower completely together and check carefully for proper routing of belts. If auger belt has become dislodged from the pulley (by catching the idler arm bracket while bringing snow thrower together), separate the snow thrower and re peat step 10. Belt must be fully seated in pulley groove when bring ing the snow thrower together. 12. Install the two (2) hex bolts and lock washers and tighten securely. 13. INSTALL ENGINE PULLEY - Place belt in pulley groove and slide pulley on crankshaft. Install fl at washer, lockwasher and bolt and tighten securely (30-35 ft. lbs. torque). Make sure belt is inside belt keeper. 14. INSTALL BELT COVER and two (2) screws. Tighten securely. 15. INSTALL DISCHARGE CHUTE – See “INSTALL DISCHARGE CHUTE / CHUTE ROTATER HEAD” in the As sem bly / Pre-Operation section of this manual. BELT KEEPER IDLER ARM SQUARE HOLE BOLT LOCK WASHER TRACTION DRIVE BELT CLUTCHING IDLER ARM BRACKET AUGER BELT FLAT WASHER AUGER PULLEY AUGER HOUSING FRAME ENGINE PULLEY LOCKWASHER BOLT 1. REMOVE GASOLINE FROM FUEL TANK - Drain gasoline from fuel tank into a suitable container, out doors, away from fi re or fl ame. Wipe up any spilled gasoline. 2. REMOVE DISCHARGE CHUTE - Loosen locknut se cur ing chute rotator head to mounting bracket only enough to allow chute rotator head to be raised and dis charge chute to be removed from snow thrower. 3. REMOVE BELT COVER - See “TO REMOVE BELT COVER” in this section of this manual. 4. REMOVE ENGINE PULLEY - Remove bolt, lock wash er and fl at washer securing pulley to engine crankshaft. Remove outside (auger) pulley only from crank shaft. 5. SEPARATE SNOW THROWER - With your assistant standing in the operating position holding the handles, re move the two (2) bolts and lock washers holding auger housing and frame together. WARNING: As the last bolt is removed, have your assistant carefully lower the han dles down to the ground. 6. REMOVE AUGER BELT from around pulley. 7. RELIEVE TENSION ON TRACTION DRIVE BELT IDLER and remove traction drive belt from around pulleys. FRAME ASSEMBLY AUGER HOUS ING HANDL...