Poulan PR624ES 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 the on/off switch is in the OFF 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.

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. 18)

AUGER SHEAR BOLTS

Both right and left-hand augers are secured to the auger shaft with a spacer, shear bolt and hex nut. Should a foreign 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 spark plug.

3.Align hole in auger hub with hole in auger shaft and install a new 1/4-20 x 2" 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.Insert safety ignition key and reconnect 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.Remove safety ignition key and disconnect spark plug wire from spark plug. Place wire where it cannot come in contact with spark 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.Insert safety ignition key and reconnect 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. 18

TO REMOVE BELT COVER (See Fig. 19)

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

15

FIG. 19

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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 CartonInstall Speed Control ROD See Figs Install Traction Drive Control ROD See FigsUnfold Upper Handle Install Auger Control ROD See Figs Install Discharge Chute / Chute Rotator 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 RequirementsTo USE Choke Control See Fig HOW to USE Your Snow ThrowerStopping To USE Fuel SHUT-OFF Valve See FigUsing the CLEAN-OUT Tool See Fig To Throw Snow See FigTo Move Forward and Backward See Fig Check Engine OIL Level See Fig To Adjust Skid Plates See FigBefore Starting the Engine Scraper BAR See Fig If Recoil Starter has Frozen Snow Throwing Tips To Start Engine Before StoppingMaintenance Engine CleaningShear Bolts See Fig Service and AdjustmentsTo Adjust Snow Thrower Height Chute DeflectorTo Replace Belts See Fig Engine Speed To Adjust Cable Tension See FigTo Remove Wheels See Fig CarburetorEngine OIL StorageOther Fuel SystemTroubleshooting Auger Bearing Auger HousingKEY Part Description Scraper BARSkid Plate RH Auger Assembly LHAuger Assembly RH Skid Plate LHExploded Impeller Pulley Gearbox Assembly178675X008 Corner Bracket Clean OUT Tool BearingRotator Head LEVER/CABLE Rotator AssemblyCable Assembly Adjustable Cable Assembly Heat ShieldStrap Chute WeldmentDeflector Weldment Deflector SealRepair Parts Snow Thrower - Model NO. PR624ES Handles Interlock CAM Lower TubePivot Support Interlock SpringWasher 3/8 SpacerKnob RED Handle KnobShifter ROD Bottom Impeller ROD AssemblyTraction ROD Assembly Shifter ROD TOPRepair Parts Snow Thrower - Model NO. PR624ES Drive Rubber Ring AssemblyDrive Plate Assembly Speed SelectorClik PIN Axle ShaftRoll PIN 3/16 Sprocket427963X428 Cover AssemblyComplete LCT Engine FrameIdler Pulley Impeller BeltTraction Belt Idler ARM Bracket187866X421 Repair Parts Snow Thrower - Model NO. PR624ES WheelsWheel Assembly LH 187831X421Repair Parts Snow Thrower - Model NO. PR624ES BAG of Parts Safety Ignition KEY422663 DECAL, DANGER, Deflector Repair Parts Snow Thrower - Model NO. PR624ES Decals181037 DECAL, DangerService Notes Service Notes Limited Warranty
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