Craftsman 486.248371 manual Replacing Auger Belt, Spiral Augers, Shear BO, Plate

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CAUTION: Beforeservicingoradjusting thesnowthrower,shutofftheengine,remove thesparkplugwire(s),settheparkingbrake andremovethekeyfromthetractorignition.

REPLACING AUGER BELT

Disengage the tractor's attachment clutch. Lower the snow thrower to the ground. Remove the attachment pin.

Lock the snow thrower's lift handle in the down position to decrease belt tension.

Release the spring tension from the auger belt idler arm on the bottom of the clutch/idler assembly. Remove the auger drive belt from the clutch/idler assembly and from the spiral auger housing.

Install new belt over top of large auger drive pulley and under the two side idler pulleys. Twist the belt 1/4 turn to seat the "V" of the belt in the groove of each idler pulley. Refer to figure 23 on page 14.

Assemble the belt onto the clutch/idler assembly.

LiFT RELEASE CABLE ADJUSTMENT

If the lift rod does not lock the snow thrower securely in the transport position, loosen the upper hex nut on the lift bracket a few turns and tighten the lower hex nut. Refer to figure 16 on page 12.

If the lift rod fails to unlock completely to lower the snow thrower, loosen the lower hex nut on the lift bracket a few turns and tighten the upper hex nut. Refer to figure 16 on page 12.

SPIRAL AUGERS

The spiral augers are secured to the auger shaft with two shear bolts and nylock nuts. If you hit a foreign object or if ice jams the augers, the snow thrower is designed so that the bolts will shear.

If the augers will not turn, check to see if the shear bolts have sheared. See figure 28. Two replacement shear bolts and nylock nuts have been provided with the snow thrower. For future use order part number 710-0890A shear bolt and number 47810 nylock nut.

SKiD SHOE ADJUSTMENT

The skid shoes are mounted on each side of the spiral auger housing. They regulate the distance the scraper plate is raised above the plowing surface. When removing snow from a gravel driveway or and uneven surface, it is advisable to keep the scraper plate as high above the surface as possible to prevent possible damage to the spiral auger. On blacktop or concrete surface, keep the scraper plate as close to the surface as possible.

Raise the snow thrower off the ground and place a block under each end of the scraper plate. Loosen the six hex nuts securing the skid shoes to the housing. Adjust the skid shoes up or down and retighten the nuts securely. Adjust both skid shoes to the same height to keep the housing and the scraper plate level. See figure 27.

GEAR HOUSING

SHEAR BO_ AND

SCRAPER

 

HEXLOCK NUT

PLATE

SKiD

 

 

SHOE

FIGURE 28

 

 

SKID

SHOE

FIGURE 27

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Contents For Tractors with Model Numbers BEGiNNiNG with Do not Return to StoreONE Year Full Warranty Wheel WeightSnow CAB Readandunderstandtheoperatinginstructionsbeforeusing Shown Actual Size Not Shown QTYDescription HousingAssembly LiftHandleandCableTractor Preparation Tools Required for AssemblyLocate Tractors Model Label Removal of Parts from CartonFront Mount Plate SEEFIGURE1Washer Shoulder Bolt 318NYLOCK NUTSee Figure HEX BoltLoosen Bolt See Figure SEEFIGURE13 CotterDISCHARGE\ \ Assembly of the Snow ThrowerHOUSING\\ 16NYLOCK NUT Crank ROD Supporttube See FigureSEEFIGURE19 SpiralStop Bolt Bolt Attaching Snow Thrower to TractorViewed from Underneath Tractor Right Side ViewInstalling the Attachment PIN Refer Backto on CLUTCH/IDLER AssemblyChecklist Setting the Auger Belt TensionHOW to USE Your Snow Thrower HOW to Startyour Snow ThrowerHOW to Stop Your Snow Thrower Know YOU R Snow TH RowerLubrication RaisingandloweringStoppingandstartingofforwardmotion Check Scraper and Shoes for WearShear BO Replacing Auger BeltSpiral Augers PlateSnow Thrower Parts to Remove AT Removing the Spiral Auger HousingStorage Recommendations END of SeasonCause ProblemSpiralaugersdontturn UpperorlowerV belttooloosePage Repair Parts for Model 486.248371 42 Snow Thrower For Tractors With lVlodel Numbers Beginning With QTY DescriptionREF Part no QTY Description 59---C REF Part no QTY Fold Along D Only Ride UP and Down Hill Not Across Hill Degrees MAXLE-FOYER M SU-HOGAR