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