Toro 51990 - User Manual

1
Operator’s Manual
Trimmer/Brushcutter
Model No. 51950—250000001 & Up
Model No. 51970—250000001 & Up
Model No. 51990—250000001 & Up
Model No. 51951—250000001 & Up
Model No. 51971—250000001 & Up
Model No. 51991—250000001 & Up
Model No. 51930B—240000001 & Up
Model No. 51932B—240000001 & Up
Model No. 51934B—240000001 & Up
English (EN), French (F), and Spanish (ES)
WARNING:
To reduce the risk of injury, the user must read and understand the operator’s manual. Save this manual.
Form No. 3351-920

Summary

READ THIS INFORMATION

Fueling and Starting Procedures

Provides essential steps for fueling the product and starting the engine, covering cold and warm conditions.

Introduction

Understanding Signal Words

Explains the meaning of signal words like DANGER, WARNING, CAUTION, Important, and Note used in the manual.

Safety Rules

Operator Preparedness and Protective Gear

Details operator's physical condition, required clothing, and essential protective accessories for safe operation.

Pre-Operation Checks and Safe Handling

Covers pre-use equipment inspection, proper stance, fueling safety, work area preparation, and safe product handling.

Blade Thrust and Equipment Use

Warns about blade thrust hazards and emphasizes using correct equipment and safe stopping procedures.

Symbols

Understanding Product Safety Symbols

Explains the meaning and significance of various symbols found on the product for safe and effective operation.

Product Labels

Identification and Warning Labels

Describes the location and importance of product labels and instructional decals for user guidance and safety.

Specifications

Technical Specifications

Lists key technical details including engine specifications, cutting width, line size, and product weight.

Applications

Recommended Product Uses

Outlines the various tasks and environments for which the trimmer/brushcutter is designed to be used.

Features

Common and Model-Specific Features

Highlights the common features of the product and specific features for curved shaft trimmers and brushcutters.

Unpacking

Unpacking Instructions and Packing List

Provides step-by-step instructions for safely unpacking the product and a comprehensive list of included parts.

Assembly

Connecting Shafts and Handles

Guides on how to connect the upper shaft, attachment shaft, and attach the front handle.

Attaching Shoulder Strap

Instructions for correctly attaching the shoulder strap to the brushcutter unit for support.

Attaching Grass Deflector

Details the process for attaching the grass deflector to both curved and straight shaft trimmer models.

Converting Brushcutter to Trimmer

Step-by-step guide to convert the unit from a brushcutter configuration to a trimmer.

Converting Trimmer to Brushcutter

Step-by-step guide to convert the unit from a trimmer configuration to a brushcutter.

Operation

Fuel Mixing and Filling

Instructions for safely mixing gasoline and oil, and filling the fuel tank.

Starting and Stopping Procedures

Covers the correct methods for starting the engine (cold/warm) and safely stopping the product.

Operating the Trimmer

Explains how to operate the trimmer, including advancing the cutting line for both curved and straight shaft models.

Operating the Brushcutter and Cutting Tips

Details how to operate the brushcutter and provides useful tips for effective cutting.

Maintenance

Emissions Schedule and Product Cleaning

Outlines the maintenance schedule for emission control parts and procedures for cleaning the product.

Servicing and Replacing Cutting Line

Information on general product servicing and step-by-step instructions for replacing the cutting line.

Replacing the Spool

Detailed guide on how to remove and replace the trimmer line spool.

Fuel Cap, Air Filter, and Spark Arrester

Procedures for checking the fuel cap, cleaning the air filter, and cleaning the spark arrester.

Spark Plug Replacement and Storage

Instructions for replacing the spark plug and proper procedures for storing the product.

Transporting the Product

Guidelines and precautions for safely transporting the trimmer/brushcutter.

Troubleshooting

Common Problems and Solutions

A comprehensive guide to identify and resolve common operational issues encountered with the product.

Warranty

Limited Warranty Terms and Service

Explains the limited warranty coverage, duration, and the process for obtaining warranty service.

FEDERAL AND CALIFORNIA EMISSION CONTROL WARRANTY STATEMENT

Emission Control Warranty Information

Details the emission control system warranty, owner responsibilities, and limitations for compliance.

Customer Service Information

Contacting Customer Support and Service

Provides essential contact information for customer support, authorized service dealers, and technical assistance.

Toro 51990 Specifications

General

Line Diameter	0.095 inches
Line Feed	Bump Feed
Shaft Type	Straight
Type	String trimmer
Power Source	Electric
Cutting System	Dual Line