Toro How to Replace Drive Belt and Adjust Snowblower Belt

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Belts, Controls and Linkages

7.The belt guide must be checked and adjusted. With the engine off, engage both the auger and traction controls. Adjust the belt guide so that there is approximately 1/8 inch (.3 cm) clearance between the belt guide and the belt.

Check auger belt adjustment. See “CONTROL AND LINKAGE ADJUSTMENT” on page 2 - 7 for the linkage adjustment procedures.

REPLACING THE TRACTION BELT

The models covered in this manual use three different methods of tensioning the traction belt. As the tensioning method affects the belt replacement process, they are separated by model number.

Replacing the Traction Belt — Toro Models 38065, 38080, 38085

When traction drive belt (Figure 38) becomes worn, stretched, oil-soaked, or otherwise damaged, replace the belt.

 

 

 

 

 

 

Figure 38

13299-32

1.

Traction drive belt

4.

Capscrews, traction

2.

Auger/impeller drive

 

idler

 

belt

5.

Traction idler pulley

3.

Auger/impeller pulley

6.

Traction pulley

 

and idler

7.

Belt guide

1.Pull high tension wire off spark plug and make sure it does not contact the plug accidentally.

2.Remove two thread forming screws holding belt cover in place, and set belt guard aside.

3.Move auger drive control to DISENGAGE and wheel drive control to N, neutral. Next, remove auger drive belt from engine pulley and large auger/impeller pulley.

4.Loosen two capscrews (securing traction idler arm to front of engine. Next, remove traction drive belt from engine pulley and large traction pulley.

5.Install new belt around large traction pulley. Next, loop belt over engine pulley, making sure that belt is on inside of traction idler pulley and wire belt guide.

6.Reinstall auger belt around large auger/impeller pulley. Next, loop belt over engine pulley, making sure that belt is on inside of auger/impeller, idler pulley and wire belt retainer. Slide idler arm and pulley assembly against belt to remove belt slack and tighten capscrews.

Note: Tension belt only enough to remove slack. Do not over-tension.

7.With the engine off, engage the auger lever. Adjust the belt guide so it is within 1/8 inch (.3 cm) of the belt.

8.Install belt cover with two thread forming screws.

9.Install high tension lead and test operate unit to check traction. If little or no traction is evident, proceed to step 10. If traction operation is satisfactory, proceed to operate machine.

10.Remove high tension lead from spark plug and remove belt guard. Loosen two capscrews securing traction idler arm and slide idler arm and pulley assembly further against belt. Move assembly a minimal amount to assure belt is not over tensioned.

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Two Stage Snowthrower Drive Systems Manual

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Contents TORO/LAWN-BOY TWO Stage Snowthrower Drive Systems Manual Table of Contents Page 2 Stage Snowthrower Drive Systems About This Manual Contents This page Intentionally Left Blank Introduction Introduction Auger Gearbox Lubricant General InformationGearbox Removal Primary Method Minimum Disassembly Loosen Remove Disconnect the chute crank rod at the auger Figure Now perform steps 1 9 under Gearbox Removal on page 1 Installation Auger Gearbox Disassembly / Service 1577-028 Gearbox Assembly Failure AnalysisLetter R and arrow 2773-059 This page Intentionally Left Blank Introduction Replacing the AUGER/IMPELLER Drive BeltReplacing the Traction Belt Replacing the Traction Belt Toro Models 38065, 38080Belt cover Upper belt cover Screw View from left side of unit Tabs in holes Control and Linkage Adjustment Auger Control Adjustment Toro Models 38065, 38080Auger/Impeller Drive Control Linkage All Other Models Adjusting Traction Control Adjusting the Traction Control Toro Models 38065, 38080Cm . This is a preliminary setting only Traction control lever 8 in cm Handgrip .5-5 cm Adjusting the Speed Selector Traction Drive Systems Troubleshooting the Traction Drive ALL Models Disassembly Toro Models 38065, 38080To disassemble the pivot assembly, proceed as follows Figure Assembly Toro Models 38065, 38080 Preparation Assembly 2768-033 MVC-714 Gear quadrant Self-tapping screws Assembly Steps 2773-078 If the receiver cam has been removed, install it now MVC-716 Disassembly Toro Models 38066, 38078, 38083, 38084 Traction engagement rod Assembly Toro Models 38066, 38078, 38083, 38084 Traction Shaft/Friction Wheel Disassembly SUB Assembly RepairToro Models 38066, 38078, 38083, 38084 Axle and Friction Plate Disassembly Axle and Friction Plate Assembly This page Intentionally Left Blank Page 492-4738