Poulan 421916 owner manual To Replace Belts See Fig

Page 17

SERVICE AND ADJUSTMENTS

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 the snow thrower.

WARNING: Belt replacement requires separation of the snow thrower. While separating the auger housing from the frame assembly, it is important that an assistant stand in the operating position and hold the snow thrower handles. Serious personal injury and/or damage to the unit could occur if the snow thrower should fall during the belt changing process.

FRAME

AUGER

ASSEMBLY

HOUSING

HANDLES

1.REMOVE GASOLINE FROM FUEL TANK - Drain gasoline from fuel tank into a suitable container, out- doors, away from fire or flame. Wipe up any spilled gasoline.

2.REMOVE DISCHARGE CHUTE - Loosen locknut securing chute rotator head to mounting bracket only enough to allow chute rotator head to be raised and discharge chute to be removed from snow thrower.

3.REMOVE BELT COVER - See “TO REMOVE BELT COVER” in this section of this manual.

4.REMOVE ENGINE PULLEY - Remove bolt, lockwasher and flat washer securing pulley to engine crankshaft. Remove outside (auger) pulley only from crankshaft.

5.SEPARATE SNOW THROWER - With your assistant standing in the operating position holding the handles, remove the two (2) bolts holding auger housing and frame together.

WARNING: As the last bolt is removed, have your assistant carefully lower the handles down to the ground.

6.REMOVE AUGER BELT from around pulley.

7.RELIEVE TENSION ON TRACTION DRIVE BELT IDLER and remove traction drive belt from around pulleys.

HINT: Insert a 3/8" drive ratchet (in the “ON” position) into the square hole in idler arm and rotate ratchet clockwise to relieve tension.

8.With tension relieved on idler, install new traction drive belt around pulleys and inside belt keepers.

9.Place auger belt around and inside the groove of auger pulley only.

10.While your assistant slowly raises handles to rejoin the auger housing and frame assembly, pull up on the auger belt and squeeze sides together above pulley so belt is fully seated in groove of pulley.

11.Move idler arm so it does not hit impeller pulley as you bring snow thrower completely together and check carefully for proper routing of belts. If auger belt has become dislodged from the pulley (by catching the idler arm bracket while bringing snow thrower together), separate the snow thrower and repeat step 12. Belt must be fully seated in pulley groove when bringing the snow thrower together.

12.Install the two (2) hex bolts and tighten securely.

13.INSTALL ENGINE PULLEY - Place belt in pulley groove and slide pulley on crankshaft. Install flat washer, lockwasher and bolt and tighten securely (30-35 ft. lbs. torque). Make sure belt is inside belt keeper.

14.INSTALL BELT COVER and two (2) screws. Tighten securely.

15.INSTALL DISCHARGE CHUTE – See “INSTALL DIS- CHARGE CHUTE / CHUTE ROTATER HEAD” in the Assembly / Pre-Operation section of this manual.

 

BELT KEEPER

 

 

TRACTION DRIVE BELT

 

ENGINE

FLAT WASHER

 

PULLEY

 

 

 

 

LOCKWASHER

 

 

BOLT

IDLER ARM

AUGER

SQUARE

BELT

HOLE

 

 

CLUTCHING

 

 

IDLER ARM

 

 

BRACKET

 

FRAME

AUGER PULLEY

AUGER

HOUSING

 

 

 

BOLTS

FIG. 21

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Contents Snow Thrower Model NumberSafe Operation Practices for Walk-Behind Snow Throwers Table of Contents Parts Packed Separately in Carton Chute Deflector Remote ControlHOW to SET UP Your Snow Thrower Assembly / PRE-OPERATIONRemove Snow Thrower from Carton Unfold Upper HandleInstall Auger Control ROD See Figs Install Traction Drive Control ROD See FigsCheck Tire Pressure Install Discharge Chute / Chute Rotater Head See FigInstall Chute Deflector Remote Control See Figs Know Your Snow Thrower OperationPrimer Ignition KEYRecoil auxiliary starter handle used for starting engine Meets A.N.S.I. Safety RequirementsStopping HOW to USE Your Snow ThrowerTo USE Choke Control See Fig To Control Snow Discharge See FigTo Move Forward and Backward See Fig Using the CLEAN-OUT Tool See FigPower Steering Operation See Fig Before Starting the Engine To Adjust Skid Plates See FigScraper BAR See Fig Check Engine OIL Level See FigTo Start Engine Snow Throwing TipsBefore Stopping If Recoil Starter has FrozenGeneral Recommendations MaintenanceBefore Each USE LubricationEngine CleaningSnow Thrower To Adjust Snow Thrower Height Service and AdjustmentsChute Deflector Shear Bolts See FigTo Replace Belts See Fig Other StorageTroubleshooting Exploded KEY Part Description Auger Assembly 30 LH Auger HousingAuger Assembly 30 RH Scrapper BARBearing Plug Auger BearingChute Weldment Deflector Control AssemblyDeflector Weldment Deflector SealRotator Head LEVER/CABLE Rotator AssemblyRotator Pivot Bracket Pulley PivotLoop Handle LH 419798X479Knob RED SpacerHandle Knob Washer 3/8Traction ROD Assembly Impeller ROD AssemblyShifter ROD TOP Shifter ROD Bottom405784X479 Pivot Support Weldment Wire HarnessConsole Panel Headlight BezelRepair Parts Snow Thrower Model 961940007 96194000701 Drive Drive Plate Assembly Speed Selector AssemblyEND Plate Bottom PAN01.03.002-A 409346X428 Frame Weldment 417015X428 Engine Mount Plate Engine Model 20M314-0927-E1Impeller Belt Belt CoverTraction Belt Wheel Driver Retainer Ring CoverWheel Lobe Clutch SlideCable Bracket RH Cable Bracket LH193071 Safety Ignition KEYDECAL, Danger 181037Service Notes HOP Limited Warranty

421916 specifications

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