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© 2020—The Toro® Company
8111 Lyndale Avenue South
Bloomington, MN 55420
POWER CLEAR® 721/821
Snowthrower Service Manual
Published: July 2020
Form No. 3438-776 Rev A
Contact us at www.Toro.com.
Original Instructions (EN)
All Rights Reserved

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Table of Contents
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Summarization of Contents

Chapter 1 Safety
Safety Instructions
Provides essential safety instructions and hazard warnings for operating the snowthrower.
Think Safety First
Emphasizes proactive safety measures and precautions to prevent accidents during use and maintenance.
Chapter 2 Specifications and Maintenance
Specifications
Details technical specifications for various POWER CLEAR® models, including engine and dimensions.
Torque Specifications
Lists recommended torque values for fasteners used in the snowthrower for proper assembly.
Equivalents and Conversions
Provides decimal and millimeter equivalents for fractions commonly used in measurements.
U.S. to Metric Conversions
Offers conversion factors for various measurement units to facilitate international service.
Chapter 3 Troubleshooting
General Troubleshooting
Outlines a systematic approach (GEARS) to diagnose and solve common snowthrower operational issues.
Chapter 4 Engine
General Information
Identifies the specific Toro engines utilized in the POWER CLEAR® 721 and 821 models.
Service and Repairs
Covers general service procedures and repair information pertaining to the engine assembly.
Engine Replacement
Provides step-by-step instructions for the removal and installation of the engine.
Electric Starter Replacement
Details the process for removing and installing the electric starter component.
Muffler Guard Replacement
Explains the procedure for removing and installing the muffler guard.
Muffler Replacement
Provides instructions for the removal and installation of the muffler assembly.
Fuel Tank Replacement
Outlines the procedure for the removal and installation of the fuel tank.
Chapter 5 Chassis
General Information
Notes that the chassis for 721 and 821 models are identical and share parts.
Service and Repairs
Covers assembly and repair procedures for chassis components and control systems.
Handle Assembly
Illustrates and labels the components of the snowthrower's handle assembly.
Power Shoot Assembly
Illustrates and labels the components of the power shoot mechanism.
Shroud Replacement
Details the steps required for removing and installing the machine's shroud.
Quick Shoot Controls Replacement
Provides instructions for replacing the quick shoot control mechanisms for chute adjustment.
Chapter 6 Drive System
General Information
States that all POWER CLEAR® 721 and 821 models utilize Toro's Power Propel self-propel system.
Service and Repairs
Covers service and repair procedures related to the auger drive assembly.
Belt Replacement
Explains the procedure for removing and installing the drive belts.
Rotor Replacement
Provides steps for the removal and installation of the rotor assembly.
Paddle Replacement
Details the procedure for replacing the rotor paddles.
Scraper Replacement
Outlines the process for removing and installing the scraper blade.

Table of Contents

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