Simplicity 1693650 860M Shear PIN Replacement, Belt Pattern as viewed from front of snowthrower

Page 23

Troubleshooting, Adjustments, & Service

6. Reverse the procedure to install the belts. Be sure

there are no twists and the belts are properly seated

in the grooves. Adjust the belt stops so there is 1/8”

(3mm) clearance between belt and stop. The pattern

for both belts is shown in Figure 25.

Belt Stops

7.

Check the traction drive tension and auger drive ten-

 

sion. Follow the procedures under AUGER DRIVE

 

BELT ADJUSTMENT.

8.

Make sure the auger stops when the auger drive

 

lever is released. Make sure traction drive stops

 

when the traction drive lever is released. If not, check

 

the drive tension. If a problem exists, see your dealer.

C

D

A

B

Belt Stops (Auger Pulley Only)

Figure 25. Belt Pattern (as viewed from front of snowthrower)

A.

Engine Pulley

C.

Idler Pulley

B.

Drive Belt

D.

Driven Pulley

SHEAR PIN REPLACEMENT

WARNING

Do not go near the discharge chute or auger when the engine is running. Do not run the engine with any cover or guard removed.

Under most circumstances, if the auger strikes an object which could cause damage to the unit, the shear pin will break. (This protects the gear box and other parts from damage.)

The shear pins are located on the auger shaft as shown in Figure 26. To replace the shear pins, tap out broken pin with a pin punch, and install a new shear pin and cot- ter pin. Spread the legs of the new cotter pin fully. Do

NOT replace shear pins with anything other than the correct grade replacement shear pin. See the REPLACEMENT PARTS section at the back of this man- ual for the correct part numbers. (Use of bolts, screws or a harder shear pin will lead to damaged equipment.)

Shear Pins

Figure 26. Shear Pins

03

19

Image 23
Contents Simplicity Technical Publications Department at 262 How to use this file...Operators ManualsThis page Intentionally Blank 860M LargeFrame Snowthrower OPERATOR’S ManualPage Table Of Contents Preparation Safety RulesGeneral Operation Maintenance & StorageDischarge Chute Danger Decal Safety DecalsSafety Decals Auger Control DecalEngine Controls Snowthrower ControlsAll Models ControlsStarting Controls Electric Start Units OnlyScraper Height Control Ground Speed ControlsAuger Control Deflector ControlsChecks Before Each START-UP OperationEngine Speed Starting the EngineOperating the Snowthrower Scraper BAR & Skid Shoes Ground Speed SelectorDeflector Klik-Pin Outer Hole FREE-WHEELING Traction Drive LockAfter Each USE Starting After Storage Regular MaintenanceNormal Care OFF-SEASON StorageLubrication Checking Tire PressureEngine starts hard or runs poorly Troubleshooting, Adjustments, & ServiceTroubleshooting Engine fails to startThrown far enough Scraper bar does not clean hardAuger does not stop when auger Auger rotates, but snow is notTraction Drive Clutch Rod & Spring Adjustment Traction Drive System AdjustmentSpeed Selector Pivot Adjustment Auger Drive Clutch Rod Adjustment Auger Drive System AdjustmentsBelt Cover Belt ReplacementBelt Pattern as viewed from front of snowthrower Shear PIN ReplacementMounting Nuts Discharge Control AdjustmentTraction Drive Auger HousingOverall Dimensions & Weight EngineTechnical Manual Availability SpecificationsCommon Replacement Parts Accessories

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