Echo CS-3400 User Manual (English)

Other manuals for Echo CS-3400

Service Data8 pages

Instruction Manual24 pages

Parts Catalog26 pages

Questions and Answers:

M
matabrianJul 26, 2025
Why does my Echo Chainsaw engine die or accelerate poorly?
- N
  Nicole WernerJul 26, 2025
  The engine of your Echo Chainsaw might be dying or accelerating poorly due to several reasons. A dirty air filter or fuel filter could be the cause; try cleaning or replacing them. Other potential issues include a plugged fuel vent, which requires cleaning, a faulty spark plug that needs cleaning, adjustment, or replacement, or a carburetor that needs adjustment. Additionally, check if the cooling system or exhaust port/silencer are plugged and clean them if necessary.
M
Melissa SanchezAug 2, 2025
What to do if my Echo Chainsaw has no spark at the plug?
- B
  bbeckerAug 2, 2025
  If there is no spark at the spark plug of your Echo Chainsaw, it might be due to several reasons. The spark gap might be incorrect and needs adjustment to 0.6 to 0.7 mm. Alternatively, the spark plug could be covered with carbon or fouled with fuel, requiring cleaning or replacement. It's also possible that the spark plug is defective and needs replacement.
T
tmillerAug 9, 2025
How to fix Echo Chainsaw when there is no fuel at the carburetor?
- J
  Joseph PetersonAug 9, 2025
  If there's no fuel at the carburetor of your Echo Chainsaw while cranking, the fuel filter or fuel line might be clogged. You should clean or replace the fuel filter and clean the fuel line. If the problem persists, consult your ECHO dealer, as the carburetor may be the issue.
J
Jennifer PetersAug 18, 2025
Why is the silencer of my Echo CS-3400 wet with fuel?
- R
  Ricky WuAug 18, 2025
  If the silencer of your Echo Chainsaw is wet with fuel, it indicates that the fuel mixture is too rich. Try opening the choke. Another cause may be a dirty air filter, so clean or replace it. If this doesn't solve the problem, you may need to adjust the carburetor or consult your ECHO dealer.

Echo CS-3400 Specifications

General

Bar Length	16 inches
Power Output	1.6 kW
Engine Displacement	34.0 cc
Weight	4.0 kg
Chain Pitch	3/8 inch
Chain Gauge	0.050 inches

Summary

Introduction

Decals and Symbols

DANGER Symbols

Explains the DANGER symbol and its implications for serious injury or death.

WARNING Symbols

Explains the WARNING symbol and its implications for serious injury or death.

CAUTION Symbols

Explains the CAUTION symbol and its implications for minor or moderate injury.

General Symbols

Illustrates and describes various operational and safety symbols for the chain saw.

Rules for Safe Operation

Tree Service Chain Saw Safety

Specific safety precautions for tree service work using the chain saw.

Tree Service Operation Techniques

Using the Chain-Saw in the Tree

Safe methods for operating the chain saw while working at height in trees.

Advanced Tree Service Safety

One-Hand Use and Freeing Trapped Saw

Guidelines for one-handed operation and procedures for freeing a caught chain saw.

General Precautions

Operator's Manual and Physical Condition

Importance of reading the manual and maintaining good physical/mental health.

Personal Protective Equipment (PPE)

Essential safety gear including eye, ear, head protection, gloves, and footwear.

Fuel Handling and Requirements

Engine Starting and Transportation

Engine Starting Procedure

Step-by-step guide to safely starting the chain saw engine.

Safe Transportation Guidelines

Guidelines for transporting the chain saw safely, including using a guide bar cover.

Kickback Safety Precautions

Other Safety Precautions

Vibration, Cold Exposure, and RSI Prevention

Precautions against health issues from vibration, cold, and repetitive stress injuries.

Machine Conditions and Cutting Practices

Machine Modifications and Cutting Safety

Warnings against modifications and general safety during cutting operations.

Wood Practices and Material Handling

Safe techniques for cutting wood and handling materials, avoiding non-wood items.

Chain Saw Description and Components

Assembly Procedures

Mounting Guide Bar and Chain

Step-by-step guide for installing the guide bar and saw chain.

Operation and Lubrication

Fuel and Lubricant Requirements

Details on fuel mixture ratio, chain oil, and tank cap identification.

Chain Lubrication Importance

Explains the necessity of proper chain lubrication for saw longevity.

Starting the Cold Engine

Troubleshooting Engine Start

Engine Warm-up and Running

Starting the Warm Engine

Procedure for starting the chain saw when the engine is already warm.

Normal Running Operation

How to operate the chain saw once the engine is running smoothly.

Engine Stopping and Pre-Cutting Checks

Stopping the Engine and Chain Tension

How to stop the engine and check/adjust chain tension.

Lubrication Test and Pre-Cutting Practice

Testing chain oiler function and practicing cuts before actual use.

Chain Brake Operation and Safety

Chain Brake Testing and Release

Checking Brake Function

Steps to verify the chain brake mechanism is working correctly.

Non-Manual Chain Brake Operation

Explanation and testing of the automatic chain brake activation.

Cutting Instructions

General Cutting Guidelines

Basic rules and safety advice for performing cutting tasks with the chainsaw.

Felling Trees Safely

Planning and Initial Cuts

Selecting a retreat path and making precise cuts for tree felling.

Felling Large Trees

Techniques for felling larger trees, including specific cutting methods.

Limbing and Bucking Techniques

Safe Limbing Practices

How to safely remove limbs from a fallen tree.

Bucking Logs Safely

Rules for sawing logs into smaller pieces, including stance and log support.

Timber Tension and Compression

Service Maintenance Guide

Troubleshooting Common Issues

Saw Chain Maintenance

Chain Sharpening Procedure

Routine Service and Component Checks

Air Filter and Fuel System Maintenance

Instructions for servicing the air filter and checking the fuel system.

Fuel and Oil Filter Checks

Guidance on inspecting and maintaining fuel and oil filters.

Spark Plug Service

How to check, clean, adjust, and replace the spark plug.

Component Maintenance Details

Cooling System and Guide Bar Care

Maintenance of cylinder fins and guide bar for optimal performance.

Sprocket, Carburetor, and Oiler Adjustment

Checks and adjustments for sprocket, carburetor, and automatic oiler.

Storage and Preparation

Long Term Storage Procedures

Steps to prepare the chainsaw for storage exceeding 30 days.

Disposal Procedures

Technical Specifications

CE Declaration of Conformity

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Echo CS-3400 User Manual

Table of Contents

Other manuals for Echo CS-3400

Questions and Answers:

Echo CS-3400 Specifications

Summary

Introduction

Decals and Symbols

DANGER Symbols

WARNING Symbols

CAUTION Symbols

General Symbols

Rules for Safe Operation

Tree Service Chain Saw Safety

Tree Service Operation Techniques

Using the Chain-Saw in the Tree

Advanced Tree Service Safety

One-Hand Use and Freeing Trapped Saw

General Precautions

Operator's Manual and Physical Condition

Personal Protective Equipment (PPE)

Fuel Handling and Requirements

Engine Starting and Transportation

Engine Starting Procedure

Safe Transportation Guidelines

Kickback Safety Precautions

Other Safety Precautions

Vibration, Cold Exposure, and RSI Prevention

Machine Conditions and Cutting Practices

Machine Modifications and Cutting Safety

Wood Practices and Material Handling

Chain Saw Description and Components

Assembly Procedures

Mounting Guide Bar and Chain

Operation and Lubrication

Fuel and Lubricant Requirements

Chain Lubrication Importance

Starting the Cold Engine

Troubleshooting Engine Start

Engine Warm-up and Running

Starting the Warm Engine

Normal Running Operation

Engine Stopping and Pre-Cutting Checks

Stopping the Engine and Chain Tension

Lubrication Test and Pre-Cutting Practice

Chain Brake Operation and Safety

Chain Brake Testing and Release

Checking Brake Function

Non-Manual Chain Brake Operation

Cutting Instructions

General Cutting Guidelines

Felling Trees Safely

Planning and Initial Cuts

Felling Large Trees

Limbing and Bucking Techniques

Safe Limbing Practices

Bucking Logs Safely

Timber Tension and Compression

Service Maintenance Guide

Troubleshooting Common Issues

Saw Chain Maintenance

Chain Sharpening Procedure

Routine Service and Component Checks

Air Filter and Fuel System Maintenance

Fuel and Oil Filter Checks

Spark Plug Service

Component Maintenance Details

Cooling System and Guide Bar Care

Sprocket, Carburetor, and Oiler Adjustment

Storage and Preparation

Long Term Storage Procedures

Disposal Procedures

Technical Specifications

CE Declaration of Conformity

Related product manuals