16SERVICE AND ADJUSTMENTSWARNING: To avoid serious injury,before performing any service or ad-justments:1. Be sure throttle is in STOP position.2. Remove safety ignition key.3. Make sure the augers and all movingparts have completely stopped.4. Disconnect spark plug wire fromspark plug and place wire where itcannot come in contact with plug.SNOW THROWERTO ADJUST SNOW THROWER HEIGHTSee “TO ADJUST SKID PLATES” and “SCRAPER BAR”in the Operation section of this manual.CHUTE DEFLECTORThe chute deflector, attached to the top of the dischargechute, is provided to direct discharging snow away fromthe operator. If the deflector becomes damaged, it shouldbe replaced.WARNING: To avoid serious injury,never operate your snow thrower withthe deflector removed or damaged.• To change direction and/or distance snow is discharged,see “TO CONTROL SNOW DISCHARGE” in the Op-eration section of this manual.SHEAR BOLTS (See Fig. 22)AUGER SHEAR BOLTSBoth right and left-hand augers are secured to the augershaft with a shoulder/shear bolt and hex nut. Should a for-eign object or ice become lodged in the augers, the shearbolts are designed to break, preventing damage to anyother components. If one or both augers do not turn whenauger control lever is engaged, check to see if one or bothof the bolts have sheared. To replace the shear bolts:1. Disengage all controls and move throttle control toSTOP position. Wait for all moving parts to stop.2. Remove safety ignition key and disconnect spark plugwire from spark plug. Place wire where it cannot comein contact with plug.3. Align hole in auger hub with hole in auger shaft and installa new 1/4-20 x 2" shoulder/shear bolt and spacer. Install1/4-20 lock nut and tighten securely.CAUTION: Do not substitute. Use only originalequipment shear bolts as supplied with yoursnow thrower.4. Connect spark plug wire to spark plug. Replace safetyignition keyIMPELLER SHEAR BOLTSThe impeller is secured to the impeller shaft with two (2)capscrew/shear bolts and hex nuts. Should a foreign objector ice become lodged in the impeller, the capscrews aredesigned to break, preventing damage to any other com-ponents. If impeller does not turn when auger control leveris engaged, check to see if the capscrews have sheared.To replace the capscrew/shear bolts:1. Disengage all controls and move throttle control toSTOP position. Wait for all moving parts to stop.2. Remove safety ignition key and disconnect spark plugwire from spark plug. Place wire where it cannot comein contact with plug.3. Align holes in impeller hub with holes in impeller shaftand install two (2) new 1/4-20 x 1-5/8" capscrew/shearbolts. Install 1/4-20 locknuts and tighten securely.CAUTION: Do not substitute. Use only originalequipment capscrew/shear bolts as suppliedwith your snow thrower.4. Connect spark plug wire to spark plug.TO REMOVE BELT COVER (See Fig. 23)1. Remove the two (2) screws securing belt cover toframe.2. Remove belt cover.3. Replace belt cover by installing cover and screws andtighten securely.FRAMEBELTCOVERSCREWSFIG. 23AUGER SHAFT1/4-20 x 2SHOULDER /SHEAR BOLT1/4-20LOCKNUTIMPELLERSHAFT1/4-20 x 1-5/8CAPSCREW /SHEAR BOLT1/4-20LOCKNUTIMPELLER HUBAUGERHUBAUGER HUBFIG. 22SPACER