Simplicity 1693648 755M, 1693647 555M Drive Belts and Replacement, Adjusting Auger Belt Guide

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DRIVE BELT ADJUSTMENT (Continued)

Adjusting Auger Belt Guide

1.With the Auger Control still fully depressed, adjust the Auger Belt Guide so that there is a 1/64” gap (1/32” Maximum) between the end of the guide and the belt (Figure 27), making certain the guide is NOT putting pressure on the belt.

2.Making certain the Auger Belt Guide does NOT move while doing so, tighten the Auger Belt Guide Screw (Figure 27) to secure the guide.

3.Check the adjustment on the Auger Belt Guide (Figure 27) to make certain that the gap between the belt and the belt guide is correct.

4.Disengage the Auger Control by removing the card- board tube (or other means used to temporarily secure the control.)

5.Test the unit by following the steps under the “Checking Auger Belt & Belt Guide Adjustments” above.

Service

WARNING

Failure to properly adjust the Auger Belt Guide may cause auger to rotate when Auger Control has not been depressed.

Belt Guide

& Gap

Belt Guide

Screw

Figure 27. Auger Belt Guide Adjustment

DRIVE BELTS AND REPLACEMENT

The snowthrower has two drive belts, one for the Traction Drive—which transmits engine power to the wheels, and a second for the Auger Drive—which trans- mits engine power to the auger mechanism.

Each of these drive belts are of special construction and should be replaced only with Genuine Replacement Belts which match the original equipment belts. These are available from your dealer. (See COMMON REPLACEMENT PARTS at the back of this manual for the correct part numbers for each of the belts.)

Traction Drive Belt Replacement

1.Disconnect spark plug wire and fasten it away from the spark plug.

2.Remove belt cover.

3.Pull the traction drive belt idler pulley arm (See Figure 23) away from the belt to relieve tension, and slide the belt off the engine pulley.

4.Slip the belt off from around the traction pulley (See Figure 28) and pull the belt out of the unit between the auger pulley and the traction pulley (the lower cover need not be removed for this step).

5.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.

6.Replace the belt cover.

WARNING

Snowthrower must move only when the traction Drive Control is depressed, and must stop when the lever is released (disengaged).

Traction Drive Belt & Pulley

Figure 28. Traction Drive Pulley

(Lower Cover Removed For Clarity)

7.Start the unit, and check the traction drive for proper operation. See "Traction Clutch Rod Adjustment" for adjustment procedures.

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Contents Simplicity Technical Publications Department at 414 How to use this file...Operators ManualsThis page Intentionally Blank Models OPERATOR’S ManualPage Table Of Contents General Safety RulesPreparation Operation Maintenance & StorageSafety Decals Safety Signs & DecalsAdditional Decals Snowthrower Controls Control Reference ChartEngine Controls Starting Controls ControlsUnits with Optional Electric Start Manual StartAuger Control Ground Speed ControlsDeflector Controls Scraper Height ControlChecks Before Each START-UP OperationOperation Starting the EngineGround Speed Selector Operating the SnowthrowerEngine Speed ThrottleScraper BAR & Skid Shoes DeflectorAfter Each USE FREE-WHEELING Traction Drive LockKlik-Pin Outer Hole Klik-Pin Inner HoleOFF-SEASON Storage Normal CareStarting After Storage Check Auger Gear Case LubricationLubrication Regular MaintenanceDriv e Disc Friction DiscMaintenance Records Troubleshooting ServiceEngine fails to start Engine starts hard or runs poorlyAuger does not stop when auger Scraper bar does not clean hardAuger rotates, but snow is not Thrown far enough Traction Drive Clutch ROD Adjustment Speed Selector Pivot ADJUST- Ment Initial Adjustment Run-In AdjustmentDrive Belt Adjustment Auger Drive Clutch ROD AdjustmentRelease Auger Control. Auger must stop within 5 seconds Adjusting Auger Drive Belt Checking Auger Belt & Belt Guide AdjustmentsAuger Control Belt CoverAdjusting Auger Belt Guide Drive Belts and ReplacementTraction Drive Belt Replacement Lower Cover Removed For ClarityAuger Drive Belt Replacement Drive Belt ReplacementShear PIN Replacement Roller Chain ReplacementPins Keeper linkChecking Tire Pressure Discharge Chute Worm Assembly AdjustmentOverall Dimensions & Weight Auger HousingEngine DriveAccessories Common Replacement PartsTechnical Manual Availability