TORO/LAWN-BOY TWO STAGE SNOWTHROWER DRIVE SYSTEMS MANUAL
Table of Contents - Page 1 of
Table of Contents - Page 2 of
TORO/LAWN-BOY TWO STAGE SNOWTHROWER DRIVE SYSTEMS MANUAL
Service Manual
2-Stage Snowthrower Drive Systems
The Toro Company Consumer Service Department
About This Manual
8111 Lyndale Avenue South Bloomington, MN
BELTS, CONTROLS AND LINKAGES
Contents
AUGER GEARBOX SERVICE
TRACTION DRIVE SYSTEMS
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Two Stage Snowthrower Drive Systems Manual
Model Name
Introduction
Model
Year
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Introduction
Two Stage Snowthrower Drive Systems Manual
AUGER GEARBOX LUBRICANT
Chapter 1 - Auger Gearbox Service
GENERAL INFORMATION
GEARBOX REMOVAL
Auger Gearbox Service
Primary Method - Minimum Disassembly
Auger Gearbox Service
7. Model 38065 and 38080 only - Disconnect the
Two Stage Snowthrower Drive Systems Manual
Auger Gearbox Service
3. Disconnect the chute crank rod at the auger Figure
Auger Gearbox Service
6. Now perform steps 1 - 9 under “GEARBOX REMOVAL” on page 1
Two Stage Snowthrower Drive Systems Manual
INSTALLATION
Auger Gearbox Service
AUGER GEARBOX DISASSEMBLY / SERVICE
Auger Gearbox Service
Two Stage Snowthrower Drive Systems Manual
Auger Gearbox Service
6. Clean the output shaft and slide the case halves off. Remove the seals from the case halves and discard the seals
Auger Gearbox Service
GEARBOX ASSEMBLY
Failure Analysis
Two Stage Snowthrower Drive Systems Manual
Auger Gearbox Service
6. On models with worm separate from the impeller shaft - Assemble the parts on the impeller shaft. From the inside out, the order is as follows seal, bushing, thrust washer, thrust bearing, thrust washer, key, worm, thrust washer, retaining ring sharp edge towards the front and bushing Figure
Auger Gearbox Service
Note Some models have 8 gear case screws others have
Two Stage Snowthrower Drive Systems Manual
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Two Stage Snowthrower Drive Systems Manual
REPLACING THE AUGER/IMPELLER DRIVE BELT
Chapter 2 - Belts, Controls and Linkages
INTRODUCTION
Two Stage Snowthrower Drive Systems Manual
Belts, Controls and Linkages
REPLACING THE TRACTION BELT
Replacing the Traction Belt - Toro Models 38065, 38080
POTENTIAL HAZARD The spring is under heavy tension
HOW TO AVOID THE HAZARD Use caution when removing the spring
Belts, Controls and Linkages
Two Stage Snowthrower Drive Systems Manual
11. Install a new belt around the large traction pulley
Belts, Controls and Linkages
Belts, Controls and Linkages
6. Remove engine crankshaft screw, lock washer and washer Figure
Two Stage Snowthrower Drive Systems Manual
18. Reinstall idler pulley spring
Belts, Controls and Linkages
Install Auger Drive Control Rod
CONTROL AND LINKAGE ADJUSTMENT
Auger Control Adjustment - Toro Models 38065, 38080
Adjusting Auger/Impeller Drive Belt
Auger/Impeller Drive Control Linkage - All Other Models
Belts, Controls and Linkages
Belts, Controls and Linkages
ADJUSTING TRACTION CONTROL
Adjusting the Traction Control - Toro Models 38065, 38080
Two Stage Snowthrower Drive Systems Manual
13 cm Figure 61. This is a preliminary setting only
Belts, Controls and Linkages
Belts, Controls and Linkages
3. Tighten the two flange nuts finger tight
Two Stage Snowthrower Drive Systems Manual
ADJUSTING THE SPEED SELECTOR
Belts, Controls and Linkages
Two Stage Snowthrower Drive Systems Manual
Chapter 3 - Traction Drive Systems
INTRODUCTION
1. Gap
Traction Drive Systems
TROUBLESHOOTING THE TRACTION DRIVE - ALL MODELS
DISASSEMBLY - TORO MODELS 38065, 38080
Drive slipping
7. Disconnect the two clevis pins on the shift linkage rods
Traction Drive Systems
Two Stage Snowthrower Drive Systems Manual
1. Eyebolt
ASSEMBLY - TORO MODELS 38065, 38080 Preparation
Traction Drive Systems
Snap ring
Assembly
Traction Drive Systems
Two Stage Snowthrower Drive Systems Manual
4. If the pivot assembly was repaired, now is the time to assemble it
Traction Drive Systems
Traction Drive Systems
1. Drain the gasoline and oil
Two Stage Snowthrower Drive Systems Manual
Traction Drive Systems
7. Disconnect the shift rod and traction drive rod
Traction Drive Systems
14. Now the two bearings that support the hex shaft can be removed
Two Stage Snowthrower Drive Systems Manual
Assembly Tips
Assembly Steps
Traction Drive Systems
2773-078
Traction Drive Systems
Two Stage Snowthrower Drive Systems Manual
MVC-862
12. If the receiver cam has been removed, install it now
Traction Drive Systems
17. Install the friction wheel and sliding bracket. The friction wheel should be on your left Figure
Traction Drive Systems
Two Stage Snowthrower Drive Systems Manual
DISASSEMBLY - TORO MODELS 38066, 38078, 38083, 38084
Traction Drive Systems
Traction Drive Systems
Two Stage Snowthrower Drive Systems Manual
Bell crank
ASSEMBLY - TORO MODELS 38066, 38078, 38083, 38084
Traction Drive Systems
Traction Drive Systems
SUB ASSEMBLY REPAIR TORO MODELS 38066, 38078, 38083, 38084
Traction Shaft/Friction Wheel Disassembly
Two Stage Snowthrower Drive Systems Manual
Traction Drive Systems
Axle and Friction Plate Disassembly
Assembly
4. The bearings can now be removed from the frame
Axle and Friction Plate Assembly
Traction Drive Systems
Two Stage Snowthrower Drive Systems Manual
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Two Stage Snowthrower Drive Systems Manual