Poulan PR524 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 adjustments:

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 contact plug.

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.Disconnect spark plug wire from spark plug and 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. 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.

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:

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

2.Disconnect spark plug wire from spark plug and 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.

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

 

 

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 screws securing belt cover to frame.

2.Remove belt cover.

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

FRAME

BELT COVER

SCREWS

FIG. 20

TO REPLACE BELTS (See Fig. 21)

The auger and traction drive belts are not adjustable. If the belts are damaged or begin to slip from wear, they should be replaced. It is recommended that the belt(s) be replaced by a qualified service center.

NOTE: It is recommended that both the auger and traction drive belt be replaced at the same time.

The V-belts on your snow thrower are of special construction and should be replaced by original equipment manufacturer (OEM) belts available from your nearest dealer. Using other than OEM belts can cause personal injury or damage to

15 the snow thrower.

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Contents Snow Thrower Model NumberSafe Operation Practices for Walk-Behind Snow Throwers Table of Contents Parts Packed Separately in Carton Assembly / PRE-OPERATION HOW to SET UP Your Snow ThrowerRemove Snow Thrower from Carton Install Speed Control ROD See Figs Install Traction Drive Control ROD See FigsUnfold Upper Handle Install Auger Control ROD See Figs Install Discharge Chute / Chute Rotater Head See FigCheck Tire Pressure Ignition KEY OperationKnow Your Snow Thrower PrimerMeets A.N.S.I. Safety Requirements Stopping HOW to USE Your Snow ThrowerStopped. Disconnect the spark plug wire When traction drive control lever is engagedUsing the CLEAN-OUT Tool See Fig When cleaning, repairing, or inspecting, makeBefore Starting the Engine Scraper BARTo Start Engine If Recoil Starter has Frozen Snow Throwing TipsWarm Start Before StoppingMaintenance Engine CleaningService and Adjustments To Adjust Snow Thrower HeightChute Deflector To Remove Wheels See Fig Other StorageTroubleshooting Service Notes Limited Warranty