Echo SRM-225 - 12-08

WARNING
Read rules for safe operation and instructions carefully. ECHO provides an
Operator's Manual and a Safety Manual. Both must be read and understood for
proper and safe operation. Failure to do so could result in serious injury.
Grass Trimmer/Brush Cutter
Operator's Manual
MODEL SRM-225
X7722271601
X772000151
12/08

Echo SRM-225 - 12-08 Specifications

General

Engine Displacement	21.2 cc
Cutting Swath	17 inches
Engine Type	2-stroke
Starting System	i-30™ starting system
Shaft Type	Straight
Weight	10.1 lbs
Shaft Length	59 in
Warranty	2 year commercial

Summary

Introduction to the Echo Grass TrimmerBrush Cutter

Understanding the Operators Manual

Read and understand this manual for specifications and information for operation, starting, stopping, maintenance, storage and assembly.

Consulting the Safety Manual

Read and understand this manual for possible hazards and safety measures when using grass trimmers and brush cutters.

Safety Precautions and Information

Interpreting Safety Symbols and Keywords

Explains safety alerts, symbols, and keywords used in the manual and on the product for safe operation.

Understanding International Safety Symbols

Displays and explains various international symbols used on the equipment for warnings and operations.

Personal Condition and Safety Gear Requirements

Warns users about risks of injury from improper use and stresses the importance of proper clothing and safety gear.

Operator Physical Condition and Protection

Ensuring Good Physical and Mental Condition

Advises users to operate the unit only if physically and mentally well, considering fatigue, medication, alcohol, or drugs.

Mandatory Eye Protection Guidelines

Recommends wearing eye protection meeting ANSI Z87.1 or CE requirements during unit operation.

Importance of Hand Protection

Suggests wearing no-slip, heavy-duty work gloves for better grip and to reduce vibration transmission to hands.

Recommended Hearing Protection

ECHO recommends wearing hearing protection whenever the unit is used.

Guidelines for Proper Operator Clothing

Details appropriate clothing: snug, durable, long pants, long sleeves, sturdy shoes, and keeping hair restrained.

Adapting to Hot and Humid Weather Conditions

Discusses increased operator fatigue in hot humid weather and advises scheduling heavy work for cooler hours.

Precautions for Extended Operation and Cold

Addresses potential Raynaud's Phenomenon from vibration/cold exposure and suggests precautions for finger health.

Preventing Injuries During Operation

Managing Risks of Repetitive Stress Injuries

Explains risks of RSI/CTS from overuse, bent wrists, and vibration, offering advice to minimize these risks.

Ensuring All Users Read the Manuals

Emphasizes providing both Operator's and Safety Manuals to all users for safe operation instructions.

Maintaining a Clear and Safe Work Area

Instructs to warn spectators and keep children/animals at least 15m (50 ft.) away during unit operation.

Maintaining a Firm and Secure Grip

Advises holding both handles firmly with thumbs and fingers encircling them for secure operation.

Achieving a Stable and Balanced Stance

Stresses maintaining footing and balance, avoiding slippery surfaces or awkward positions.

Avoiding Contact with Hot Surfaces

Warns to keep the exhaust area clear of flammable debris and avoid contact with hot surfaces.

Equipment Safety and Emission Controls

Using Only Approved Equipment Attachments

Advises using only ECHO approved attachments to prevent serious injury from non-approved combinations.

Warning Regarding Moving Parts

Warns that moving parts can amputate fingers and stresses stopping the engine before servicing.

Fuel System Leak Inspection

Advises checking the fuel system for leaks, especially after dropping the unit, and seeking repair if found.

Unit Description and Decal Locations

Understanding Safety Decals on the Unit

Instructs to locate, understand, and follow instructions on safety decals on the unit.

Identifying the Hot Decal near Muffler

Identifies the location and part number for the "Hot Decal" near the muffler.

Locating the Shaft Decal

Identifies the location and part number for the "Shaft Decal" on the unit.

Component Identification and Functions

Power Head Components Overview

Details the components of the power head, including the engine, clutch, fuel, ignition, and starter.

Grip and Handle Functions

Identifies the rear grip and describes the front loop handle's assembly and positioning.

Throttle Control Systems

Explains the throttle trigger, its lockout, and the stop switch for engine operation.

Drive Shaft Assembly Details

Details the drive shaft assembly, including handles, gear housing, and safety decal.

Nylon Cutter Head Operation

Describes the nylon trimmer head and how line advances by tapping the ground.

Function of the Cut-Off Knife

Explains the cut-off knife's function in trimming nylon line to the correct length.

Plastic Debris Shield Assembly

Details the plastic debris shield assembly, its installation, and its purpose in deflecting debris.

Spark Plug and Arm Rest Functions

Explains the spark plug's role and the arm rest's function for support.

Recoil Starter Handle Operation

Instructs on the proper technique for pulling the recoil starter handle to start the engine.

Muffler, Spark Arrestor, and Fuel System

Explains the muffler's role, spark arrestor screen, and identifies the fuel tank and cap.

Air Cleaner, Choke, and Purge Bulb

Identifies the air cleaner, choke control, and purge bulb for engine starting.

Assembly of the TrimmerBrush Cutter

Installing the Plastic Debris Shield

Details the steps for installing the plastic debris shield for nylon line operation.

Trimmer Head Installation and Line Management

Nylon Line Head Installation Procedure

Provides instructions and tools required for installing the nylon line head.

Tip for Advancing Trimmer Line

Offers a tip on how to advance trimmer line by tapping the head against the ground.

Nylon Line Replacement Guidance

Directs users to the Maintenance Section for instructions on nylon line replacement.

Safe Removal of the Nylon Line Head

Provides instructions and notes on how to safely remove the nylon line head.

Operation Setup and Warnings

Front Handle Installation Steps

Details the tools and steps for positioning and securing the front handle for operation.

Operational Safety Warnings

Warns about moving parts and hot, poisonous engine exhaust during operation.

Preparing for Blade Operation

States that blade use demands specific configurations, shields, and harnesses for safety.

Blade Set-Up and Selection Guide

SRMPASSB Blade Set-Up Chart

A guide showing required parts for different blade types (grass/weed, brush/clearing).

Required Parts for GrassWeed Blades

Lists required components for using grass/weed blades, including a conversion kit.

Required Parts for BrushClearing Blades

Lists required components for using brush/clearing blades, including a conversion kit.

Choosing the Appropriate Cutting Blade

Advises matching the blade type to the material and ensuring blades are sharp to prevent injury.

Blade Types and Harness Recommendations

Guidelines for PlasticNylon Blades

Notes that plastic/nylon blades are for light trimming and not for heavy weeds or brush.

8 Tooth WeedGrass Blade Application

Describes the 8-tooth blade's intended use for grass and weeds, not brush.

80 Tooth Brush Blade Capabilities

Describes the 80-tooth blade's suitability for cutting brush and woody growth.

22 Tooth Clearing Blade Usage

Describes the 22-tooth blade's design for dense thickets and saplings.

Importance of Using ShoulderWaist Harness

Recommends the shoulder/waist harness for all trimmer/brush cutter use to reduce fatigue and enhance safety.

Fueling and Handling Procedures

Notice on Correct Fuel Usage

Warns against using unmixed, old, or improper fuel, as it can cause starting issues and void warranty.

Warning Against Alternative Fuel Use

Prohibits alternative fuels like E-20/E-85, warning of performance issues and component damage.

Required Gasoline and Two-Stroke Oil Specifications

Specifies requirements for gasoline (89 Octane, max 10% ethanol) and two-stroke oil (ISO-L-EGD, J.A.S.O. FC/FD).

Critical Dangers of Handling Flammable Fuel

Highlights extreme flammability of fuel and provides critical safety precautions for mixing, storing, and handling.

Fuel Mixing and Storage Guidelines

Step-by-Step Fuel Mixing Instructions (50:1)

Provides step-by-step instructions for correctly mixing gasoline and two-stroke oil at a 50:1 ratio.

Importance of Preventing Fuel Spillage

States spilled fuel is a major cause of hydrocarbon emissions and suggests using shut-off containers.

Proper Fuel Storage Procedures

Advises on proper fuel storage laws and recommends airtight containers in ventilated areas away from sparks.

Managing Stored Fuel Aging

Warns that stored fuel ages and suggests mixing only what is needed within 30-90 days, with stabilizer.

Shaking Stored Two-Stroke Fuel

Reminds users that stored two-stroke fuel can separate and must be shaken thoroughly before each use.

Starting a Cold Engine Procedure

Warning: Immediate Attachment Operation

Warns that the attachment operates immediately upon starting, potentially causing loss of control and injury.

Setting the Stop Switch and Choke

Instructs to move the stop switch forward and the choke to the "Cold Start" position.

Using the Purge Bulb Correctly

Explains pumping the purge bulb until fuel is visible in the return line.

Recoil Starter Operation for Ignition

Guides on positioning the unit, holding the grip, and pulling the recoil starter for engine ignition.

Adjusting Choke After Engine Fires

Instructs to move the choke to the "Run" position after the engine fires and to let it warm up.

Gradually Increasing Engine Speed

Advises gradually depressing the throttle trigger after engine warm-up to reach operating speed.

Starting a Warm Engine and Stopping Procedures

Procedure for Starting a Warm Engine

Outlines the starting procedure for a warm engine, noting differences from cold start (no choke).

Warning: Idle Speed Attachment Movement

Warns that the attachment should not move at idle, as it can cause serious injury.

Safe Engine Stopping Procedure

Provides instructions for safely stopping the engine by releasing the throttle and moving the stop switch.

Action for Stop Switch Failure

Advises using the choke to stall the engine if the stop switch fails, and to get it repaired.

Maintenance Overview and Skill Levels

General Maintenance Safety Warning

Reinforces the danger of moving parts and the need to stop the engine and disconnect the spark plug before servicing.

Understanding Maintenance Skill Levels

Defines skill levels for maintenance tasks: Level 1 (Easy) and Level 2 (Moderate difficulty).

Scheduled Maintenance Intervals Guide

Presents a table detailing maintenance intervals, procedures, and required skill levels for various components.

Air Filter and Fuel Filter Maintenance

Air Filter Inspection and Cleaning

Provides Level 1 instructions for inspecting and cleaning or replacing the air filter.

Fuel Filter Inspection and Replacement

Offers Level 1 instructions for inspecting and replacing the fuel filter using a wire hook.

Critical Dangers in Fuel Handling

Re-emphasizes the extreme flammability of fuel and the need for extreme care during handling.

Spark Plug and Cooling System Care

Spark Plug Inspection and Adjustment

Details Level 2 instructions for inspecting, cleaning, replacing, and gapping the spark plug.

Cooling System Maintenance for Airflow

Explains Level 2 maintenance for the cooling system, focusing on keeping fins clean for proper airflow.

Ensuring Proper Engine Cooling Airflow

Stresses the importance of unobstructed cooling air for maintaining engine operating temperatures.

Exhaust System Maintenance

Spark Arrestor Screen CleaningReplacement

Provides Level 2 instructions for cleaning or replacing the spark arrestor screen and related components.

Exhaust Port and Muffler Cleaning

Exhaust Port and Muffler Component Cleaning

Details Level 2 procedures for cleaning carbon deposits from the exhaust port and muffler components.

Important: Avoid Metal Tools for Cleaning

Warns against using metal tools to clean the exhaust port to prevent scratching cylinder or piston.

Carburetor Adjustment Procedures

Engine Break-In and Carburetor Settings

Explains engine break-in, high altitude operation, and the factory settings for the carburetor.

Altitude-Based Carburetor Re-adjustment

Advises re-adjusting the carburetor when moving between altitudes above and below 1,100 feet MSL.

Warning: Cutting Attachment Movement at Idle

Warns that the cutting attachment should not move at idle after adjustment to prevent serious injury.

Lubrication of Gear Housing and Drive Shaft

Gear Housing Grease Check and Addition

Provides Level 1 instructions for cleaning and checking/adding grease to the gear housing.

Drive Shaft Flexible Cable Lubrication

Details Level 1 steps for lubricating the flexible cable within the drive shaft housing.

Important Washer Placement in Drive Shaft

Specifies that the flat edge of washers must be against the drive shaft during assembly.

Nylon Line Replacement Steps

Sharpening Metal Blades Correctly

Important: Grinding Metal Blades Safely

Warns against overheating teeth and using cooling water when grinding metal blades.

Troubleshooting Engine Problems

Danger: Flammable Fuel Vapors

Warns about the extreme flammability of fuel vapors and potential for fire or explosion.

Long Term Storage Procedures

Warning: Hot Muffler During Storage

Warns that the muffler becomes hot and to keep the exhaust area clear of flammable debris.

Danger: Fuel Fumes in Enclosures

Warns against storing in enclosures where fuel fumes can accumulate or reach ignition sources.

Detailed Product Specifications

Canadian Spark Ignition System Compliance

Notes that the spark ignition system complies with Canadian ICES-002.

Servicing Information and Support

Parts and Serial Number Identification

Advises having model, type, and serial numbers ready when ordering parts or seeking service.

Authorized Service Dealer Information

States that warranty service must be performed by an Authorized ECHO Service Dealer.

Echo Consumer Product Support Contact

Provides contact information for ECHO Consumer Product Support for assistance with operation or maintenance.

Warranty Registration Importance

Emphasizes the importance of registering the ECHO equipment online or via phone for warranty coverage.

Obtaining Additional Manuals

Lists sources for obtaining additional or replacement operator's, parts, and safety manuals.