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Toro 51970 - User Manual

Toro 51970
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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 operators manual. Save this manual.
Form No. 3351-920

Questions and Answers

  • A
    Alexa SimpsonAug 20, 2025
    How to prevent grass wraps around the Trimmer head assembly and the attachment shaft of my Toro 51970 Trimmer?
    • M
      Maria BrownAug 20, 2025
      To prevent grass from wrapping around the trimmer head assembly and attachment shaft of your Toro Trimmer, cut tall grass from the top down and operate the product at full throttle.
  • M
    mmoralesAug 22, 2025
    What to do if the line will not advance on my Toro 51970 Trimmer?
    • K
      Kathleen OrrAug 22, 2025
      If the line on your Toro Trimmer won't advance when using automatic line lengthening, consider these possible causes: * The line may be welded to itself. If so, lubricate it with silicone spray. * There might not be enough line on the spool. Install more line. * The line could be worn too short. Pull the line while alternately pressing down on and releasing the retaining cap. * The line may be tangled on the spool. Remove the line and rewind it. * The engine speed may be too slow. Advance the line at full throttle.
  • A
    Andrea BoltonAug 26, 2025
    Why Toro 51970 engine does not reach full speed and emits excessive smoke?
    • N
      njonesAug 26, 2025
      If your Toro Trimmer engine doesn't reach full speed and emits excessive smoke, ensure you're using fresh fuel and the correct 2-cycle oil mix. Also, check and clean the air filter and the spark arrestor screen, as they may be dirty.
  • J
    jingramAug 28, 2025
    What to do if the line will not advance when using automatic line lengthening on my Toro Trimmer?
    • I
      itrujilloAug 28, 2025
      If the line on your Toro Trimmer won't advance automatically, try these steps: First, lubricate the line with silicone spray if it seems welded together. If there's not enough line, install more. If the line is too short, pull it while pressing and releasing the retaining cap. If the line is tangled, remove it from the spool and rewind it. Lastly, make sure the engine is at full throttle when advancing the line.
  • J
    Jamie PowellAug 31, 2025
    Why does oil drip from the muffler of my Toro 51970 Trimmer?
    • M
      Mark WeissAug 31, 2025
      If oil drips from the muffler of your Toro Trimmer, operate the product at full throttle. Also, ensure you are using fresh fuel and the correct 2-cycle oil mix, and check to see if the air filter is dirty and clean it if needed.
  • A
    Antonio Smith DDSSep 2, 2025
    How to fix retaining cap hard to turn when using automatic line lengthening on Toro Trimmer?
    • C
      Curtis RogersSep 2, 2025
      If the retaining cap on your Toro Trimmer is hard to turn when using automatic line lengthening, clean the screw threads and lubricate them with grease. If this doesn't solve the problem, replace the retaining cap.
  • B
    Bonnie CollinsSep 5, 2025
    Why does my Toro Trimmer engine not reach full speed and emits excessive smoke?
    • C
      Colleen BrownSep 5, 2025
      If your Toro Trimmer engine does not reach full speed and emits excessive smoke, check the following: 1. **Fuel mixture:** Use fresh fuel and the correct 2-cycle oil mix. 2. **Air filter:** Clean the air filter. 3. **Spark arrestor:** Clean the spark arrestor screen.
  • R
    rsampsonSep 7, 2025
    How to prevent grass from wrapping around the Toro 51970 Trimmer head?
    • O
      Olivia WeberSep 8, 2025
      If grass wraps around the trimmer head assembly and the attachment shaft of your Toro Trimmer, consider these solutions: 1. If you are cutting tall grass at ground level, cut it from the top down. 2. If you are operating the product at part throttle, operate it at full throttle.
  • L
    Lisa DonovanSep 12, 2025
    Why is oil dripping from the muffler of my Toro 51970?
    • P
      Philip WaltersSep 12, 2025
      If oil drips from the muffler of your Toro Trimmer, here's what you should check: 1. Ensure you are operating the product at full throttle. 2. Verify you are using fresh fuel and the correct 2-cycle oil mix. 3. Make sure the air filter is clean.
  • C
    christina42Sep 13, 2025
    What to do if retaining cap is hard to turn on Toro 51970?
    • C
      catherinegainesSep 13, 2025
      If the retaining cap is hard to turn when using automatic line lengthening on your Toro Trimmer, the screw threads may be dirty or damaged. Clean the threads and lubricate them with grease. If this doesn't solve the problem, replace the retaining cap.

Summary

Trimmer;Brushcutter Operators Manual

Introduction and Contact Information

Covers product title, model numbers, and essential contact details.

Important Information Before Use

Fueling Procedures

Proper procedures for filling the fuel tank with gasoline.

Starting Engine: Cold vs. Warm

Guidance on starting the engine based on its temperature.

Troubleshooting: Flooded Engine

Steps to take if the engine is flooded and won't start.

Introduction and Safety Signals

Product Introduction and Identification

General introduction and space for product model/serial numbers.

Understanding Safety Signal Words

Explanation of signal words like DANGER, WARNING, CAUTION, Important, and Note.

Comprehensive Safety Rules

Operator Safety Requirements

Guidelines for operator's condition, clothing, and protective gear.

Safe Operating Practices

Rules for stance, fueling, work area, and environment handling.

Equipment Safety and Hazards

Pre-use checks, equipment usage, blade thrust, and stopping.

Product Safety Symbols

General Safety Alert and Manual Symbols

Meaning of general safety alert and manual consultation symbols.

Protective Gear and Hazard Symbols

Symbols for protective gear and general hazards like ricochet.

Specific Hazard and Usage Symbols

Symbols indicating specific hazards like blade thrust or usage restrictions.

Understanding Risk Levels with Signal Words

Signal Word Definitions

Definitions of DANGER, WARNING, and CAUTION signal words.

Service and Safety Warnings

Guidance on professional servicing and general tool operation safety.

Product Labels and Identification

Starting and Operation Labels

Labels for engine start sequence, choke, and power switch.

Safety Symbols and Accessory Labels

Labels illustrating safety symbols and accessory release mechanisms.

Specifications and Applications

Detailed Product Specifications

Technical specifications including engine, cutting width, and weight.

Product Application Guide

Recommended uses for the trimmer/brushcutter.

Product Features

Common Features Overview

Features shared across all models.

Curved Shaft Trimmer Features

Features specific to curved shaft trimmer models.

Brushcutter Features

Features specific to brushcutter models.

Unpacking and Contents

Unpacking Instructions

Steps for carefully removing and inspecting the product.

Included Packing List

List of all parts included in the product packaging.

Product Assembly

Connecting Attachment to Upper Shaft

Procedure for attaching the cutting head to the power head.

Attaching the Front Handle

Instructions for mounting the front handle.

Attaching the Shoulder Strap

Procedure for connecting the shoulder strap.

Attaching the Grass Deflector

Attaching Curved Shaft Grass Deflector

Steps for attaching the deflector to curved shaft models.

Attaching Straight Shaft Grass Deflector

Steps for attaching the deflector to straight shaft models.

Converting Brushcutter to Trimmer

Removing Blade and Brushcutter Guard

Procedure to remove brushcutter-specific parts.

Installing Trimmer Head Assembly

Procedure for attaching the trimmer head.

Converting Trimmer to Brushcutter

Removing Trimmer Head and Grass Deflector

Procedure to remove trimmer-specific parts.

Attaching Brushcutter Guard

Instructions for installing the brushcutter guard.

Installing the Brushcutter Blade

Procedure for mounting the brushcutter blade.

Product Operation: Fueling

Mixing Fuel and Oil

Instructions and chart for mixing gasoline and 2-cycle oil.

Filling the Fuel Tank Safely

Safe procedures for filling the fuel tank.

Product Operation: Starting and Stopping

Starting the Engine

Step-by-step guide to starting the engine for cold and warm starts.

Stopping the Engine

Procedure for safely shutting off the engine.

Operating the Trimmer

Operating Curved Shaft Trimmer

Instructions for operating curved shaft trimmer models.

Advancing the Cutting Line

Method for extending the cutting line during use.

Operating Straight Shaft Trimmer

Instructions for operating straight shaft trimmer models.

Operating the Brushcutter

Cutting Tips and Techniques

Tips for effective and safe cutting with the brushcutter.

Product Maintenance

Emissions Control System Maintenance

Schedule for maintaining emission control parts.

Cleaning and Servicing the Product

Instructions for cleaning and general servicing tasks.

Replacing the Cutting Line

Step-by-step guide to replacing the trimmer line.

Replacing the Spool

Routine Maintenance Checks

Checking the Fuel Cap

Procedure for checking the fuel cap for leaks or blockages.

Cleaning the Air Filter

Steps for cleaning and oiling the air filter.

Cleaning the Spark Arrester

Procedure for cleaning the spark arrester screen.

Product Care and Transport

Replacing the Spark Plug

Instructions for replacing the spark plug.

Product Storage Procedures

Steps for storing the product short-term and long-term.

Product Transport Guidelines

Instructions for safely transporting the product.

Troubleshooting Guide

Engine Start Problems

Diagnosing and resolving issues when the engine fails to start.

Performance Issues: Speed and Smoke

Resolving issues with engine speed and excessive smoke.

Line Feed and Operation Issues

Fixing problems with line advancement and retaining cap.

Warranty Information

Limited Warranty Terms

Duration and coverage of the limited warranty.

Obtaining Warranty Service

Steps and contact information for warranty service claims.

Warranty Exclusions

Conditions and parts not covered by the warranty.

Emissions Control Warranty

Emissions Warranty Rights and Obligations

Owner's responsibilities and rights regarding emissions warranty.

Owners Emissions Warranty Responsibilities

Owner's responsibilities for maintenance and care.

Emissions Warranty Limitations

Conditions that void or limit the emissions warranty.

Customer Service and Support

Toro 51970 Specifications

General IconGeneral
BrandToro
Model51970
CategoryTrimmer
LanguageEnglish

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