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3. Grasp upper speed selector rod (C, Figure 21), and pull up, then tighten the two nuts (A) while maintaining the position of the upper rod. Make sure the shoulders of the carriage bolts are in the slots. 4. Always check traction drive tension and auger drive tension after adjusting speed selector. A A B C Figure 21. Drive Linkage A. Nut C. Upper Speed B. Lower Speed Selector Rod Selector Rod Discharge Control Adjustment If the discharge control is difficult to operate, first lubricate the pinion gear (A, Figure 22) and ring gear (E). The pinion gear can be adjusted by loosening the bolts (C) which hold the pinion gear bracket. If the pinion gear is too tight against the ring gear, move it away slightly and then retighten the bolts. Check operation again. If discharge control is still difficult to operate, see Chute Direction Control Rod Gear Adjustment. A E D C B Figure 22. Discharge Control A. Pinion Gear B. Control Rod C. Bolt (2) D. Bracket E. Ring Gear 6/2006 11 TP 300-5196-00-IS-SN Intermediate Frame Snowthrowers Chute Direction Control Rod Gear Adjustment If the discharge chute becomes difficult to rotate or begins to operate erratically, the chute direction control rod gears may require adjustment: 1. Loosen the gear bracket mounting nuts (Figure 23). 2. Slide the gear bracket into the position that provides the best engagement between the gears. 3. Tighten the bracket mounting nuts, and check for smooth operation. 4. Readjust if necessary. 5. Lubricate the Chute Direction Control rod gears with lithium grease. Mounting Nuts Figure 23. Chute Direction Gear Adjustments A B Figure 25. Scraper Bar Adjustment A. Scraper Bar B. Nuts TP 300-5196-00-IS-SN 12 6/2006 Intermediate Frame Snowthrowers Drive Belt Replacement Traction Drive Belt Replacement WARNING Snowthrower must move only when the traction drive control is depressed, and must stop when the lever is released (disengaged). 1. Disconnect the spark plug wire and fasten it away from the spark plug. Remove belt cover. 2. Pull the drive belt idler pulley arm away from the belt to relieve tension, and slide the belt off engine pulley (A, Figure 27). 3. Slip the belt off the traction pulley (See Figure 26) and pull the belt out of the unit between the auger pulley and the traction pulley (the lower cover need not be Traction Drive Belt & Pulley Figure 26. Traction Drive Pulley (Lower Cover Removed For Clarity) removed for this step). 4. Reverse the procedure to install the new belt. Be sure there are no twists in the belt, and that the belt is properly seated in the pulley grooves. 5. Replace the belt cover. 6. Start the unit, and check the traction drive for proper operation. See "Traction Clutch Rod Adjustment" for adjustment procedures. A B D E C Figure 27. Auger Drive Belt Pattern A. Engine Pulley D. Driven Pulley B. Drive Belt E. Belt Stops C. Idler Pulley 6/2006 13 TP 300-5196-00-IS-SN Intermediate Frame Snowthrowers Auger Drive Belt Replacement WARNING Auger must NOT rotate unless the Auger Control lever has been depressed. Proper Auger Drive Belt adjustments stop the auger within 5 seconds after the Auger Control is disengaged. 1. Drain the fuel tank and run engine out of gas. 2. Disconnect spark plug wire and fasten it away from the spark plug. 3. Remove belt cover. 4. Loosen auger belt guide and slide belt off engine pulley and away from idler pulley. (See Figure 28). 5. Depress and secure both the auger and traction control levers to provide clearance for belt removal. 6. Tilt the snowthrower forward and rest it on the auger housing. 7. Remove lower cover. 8. Loosen hex screws securing the belt stop (Figure 29), and pivot the belt stop away from the pulley to permit removal of belt. 9. Pull the belt out of the unit, and install the new belt on the auger drive pulley. 10. Position belt stop to provide 1/8" clearance between stop and belt when engaged, and tighten securely. 11. Replace lower cover. 12. Return unit to normal upright operating position. 13. Remove both control levers. 14. Install auger belt over engine pulley. 15. Adjust auger belt guide as described under ADJUSTING AUGER BELT GUIDE. 16. Install belt cover. 17. Connect spark plug wire and fill fuel tank. 18. Start Unit and check auger for proper operation. See DRIVE BELT ADJUSTMENT PROCEDURES if additional adjustment is necessary. Figure 29. Auger Drive Pulley and Belt Stop Auger Belt Stop Auger Drive Pulley Figure 28. Auger Belt Guide Adjustment Belt Guide & Gap Belt Guide Screws TP 300-5196-00-IS-SN 14 6/2006 Intermediate Frame Snowthrowers NOTES 6/2006 15 TP 300-5196-00-IS-SN Intermediate Frame Snowthrowers NOTES MANUFACTURING, INC. 500 N Spring Street / PO Box 997 Port Washington, WI 53074-0997 USA © 2006 Simplicity Manufacturing, Inc. All Rights Reserved 16 ...

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