Poulan 422073 owner manual Service and Adjustments, To Adjust Snow Thrower Height, Chute Deflector

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SERVICE AND ADJUSTMENTS

WARNING: 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 moving parts have completely stopped.

4.Disconnect spark plug wire from spark plug and place wire where it cannot come in contact with plug.

1.Disengage all controls and move throttle control to STOP position. Wait for all moving parts to stop.

2.Remove safety ignition key and disconnect spark plug wire from spark plug. Place wire where it cannot come in contact with plug.

3.Align holes in impeller hub with holes in impeller shaft and install two (2) new 1/4-20 x 1-5/8" capscrew/shear bolts. Install 1/4-20 locknuts and tighten securely.

CAUTION: Do not substitute. Use only original equipment capscrew/shear bolts as supplied with your snow thrower.

SNOW THROWER

TO ADJUST SNOW THROWER HEIGHT

See “TO ADJUST SKID PLATES” and “SCRAPER BAR” in the Operation section of this manual.

CHUTE DEFLECTOR

The chute deflector, attached to the top of the discharge chute, is provided to direct discharging snow away from the operator. If the deflector becomes damaged, it should be replaced.

WARNING: To avoid serious injury, never operate your snow thrower with the 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. 19)

AUGER SHEAR BOLTS

Both right and left-hand augers are secured to the auger shaft with a shoulder/shear bolt and hex nut. Should a for- eign object or ice become lodged in the augers, the shear bolts are designed to break, preventing damage to any other components. If one or both augers do not turn when auger control lever is engaged, check to see if one or both of the bolts have sheared. To replace the shear bolts:

1.Disengage all controls and move throttle control to STOP position. Wait for all moving parts to stop.

2.Remove safety ignition key and disconnect spark plug wire from spark plug. Place wire where it cannot come in contact with plug.

3.Align hole in auger hub with hole in auger shaft and install a new 1/4-20 x 2" shoulder/shear bolt and spacer. Install 1/4-20 lock nut and tighten securely.

CAUTION: Do not substitute. Use only original equipment shear bolts as supplied with your snow thrower.

4.Connect spark plug wire to spark plug. Replace safety ignition key

IMPELLER SHEAR BOLTS

 

The impeller is secured to the impeller shaft with two (2)

 

capscrew/shear bolts and hex nuts. Should a foreign object

 

or ice become lodged in the impeller, the capscrews are

 

designed to break, preventing damage to any other com-

 

ponents. If impeller does not turn when auger control lever

 

is engaged, check to see if the capscrews have sheared.

 

To replace the capscrew/shear bolts:

15

4. Connect spark plug wire to spark plug.

1/4-20

1/4-20 x 1-5/8

1/4-20 x 2

LOCKNUT

CAPSCREW /

SHOULDER /

 

SHEAR BOLT

SHEAR BOLT

 

IMPELLER HUB

SPACER

 

 

 

IMPELLER

 

 

SHAFT

 

 

 

AUGER

 

 

HUB

1/4-20

 

 

LOCKNUT

AUGER HUB

AUGER SHAFT

FIG. 19

TO REMOVE BELT COVER (See Fig. 20)

1.Remove the two (2) screws securing belt cover to frame.

2.Remove belt cover.

3.Replace belt cover by installing cover and screws and tighten securely.

BELT

COVER

FRAME

SCREWS

FIG. 20

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Contents Snow Thrower Model NumberSafe Operation Practices for Walk-Behind Snow Throwers Table of Contents Remove Snow Thrower from Carton Assembly / PRE-OPERATIONHOW to SET UP Your Snow Thrower Parts Packed Separately in CartonUnfold Upper Handle Install Speed Control ROD See FigsInstall Auger Control ROD See Figs Install Discharge Chute / Chute Rotater Head See FigCheck Tire Pressure Ignition KEY OperationKnow Your Snow Thrower PrimerRecoil auxiliary starter handle used for starting the engine Meets A.N.S.I. Safety RequirementsStopping HOW to USE Your Snow ThrowerUsing the CLEAN-OUT Tool See Fig To Throw Snow See FigTo Move Forward and Backward See Fig To Start Engine Before Starting the EngineSnow Throwing Tips Before StoppingIf Recoil Starter has Frozen Lubrication MaintenanceGeneral Recommendations Before Each USEEngine CleaningShear Bolts See Fig Service and AdjustmentsTo Adjust Snow Thrower Height Chute DeflectorTo Replace Belts See Fig Other StorageTroubleshooting Service Notes Exploded KEY Part Description Auger 27 RH Auger HousingScraper BAR Auger 27 LHBearing Plug Auger BearingStrap Chute WeldmentDeflector Weldment Deflector SealPulley Pivot LEVER/CABLE Rotator AssemblyRotator Head Rotator Pivot BracketLoop Handle LH Loop Handle RH405784X479 Pivot Support Weldment Handle Knob SpacerRetainer Knob REDShifter ROD Bottom Impeller ROD AssemblyTraction ROD Assembly Shifter ROD TOPFlood Headlight Wire HarnessConsole Panel Headlight BezelRepair Parts Snow Thrower - Model Number XT8527ES Drive Control ARM Speed Selector Assembly43 402689 Drive Plate Assembly END PlateClik PIN Axle ShaftRoll PIN 3/16 Sprocket417014X505 Engine Mount Plate KEY Part Description Engine Tecumseh Model LH318SA-156551HBelt Cover Traction BeltImpeller Belt Wheel Assembly LH 187833X428187865X428 Safety Ignition KEY Part KEY Description35062 181037 DECAL, DangerDECAL, DANGER, Deflector Service Notes Service Notes Limited Warranty

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