Echo SRM-2400 TYPE 1E, SRM-2410 TYPE 1E User Manual

Grass Trimmer/Brush Cutter

Operator's Manual

MODELS, Type 1E SRM-2400

Serial Number 562682 & Up
SRM-2410
Serial Number 503485 & Up

WARNING

The engine exhaust from this

product contains chemicals known

to the State of California to cause

cancer, birth defects or other

reproductive harm.

WARNING DANGER

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.

X7532279701

89861154131
09/99

2

INTRODUCTION

Welcome to the ECHO family. This ECHO product was designed and manufactured to provide long life and on-the­job-dependability. Read and understand this manual and the SAFETY MANUAL you found in the same package.
You will find both easy to use and full of helpful operating tips and SAFETY messages.

WARNING DANGER

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.

THE OPERATOR'S MANUAL --

contains specifications and information for operation, starting,
stopping, maintenance, storage and assembly specific to this product.

THE SAFETY MANUAL --

explains possible hazards involved with the use of Grass Trimmers and
Brush Cutters and what measures you should take to make their use
safer.

TABLE OF CONTENTS

Introduction ........................................................................ 2

- The Operator's Manual .............................................. 2

- The Safety manual ...................................................... 2

Manual Safety Symbols and Important Information ......... 3

Safety .................................................................................. 3

- General Description .................................................... 3

- Decals ......................................................................... 4

- International Symbols ................................................. 5

- Equipment .................................................................. 5

- Fuel ............................................................................. 6

- Personal Condition and Safety Equipment ................. 6

- Safe Operation ............................................................ 7

- Extended Operation/Extreme Conditions ................... 9

Description ....................................................................... 10

- Contents ................................................................... 10

- Blade Terms & Definitions ....................................... 10

- Emission Control ...................................................... 11

Specifications .................................................................... 13

Assembly .......................................................................... 14

- ECHO Approved Optional Attachments ................ 14

- Plastic Shield Installation .......................................... 14

- Nylon Head Installation ........................................... 14

- Blade Installation ...................................................... 15

- Harness Clamp Installation ...................................... 16

- Front Handle Installation .......................................... 17

- U-Handle Installation ............................................... 17

Pre-Operation ................................................................... 20

- Operation with Blades .............................................. 20

- Fuel ........................................................................... 22

- Equipment Check ..................................................... 23

- Determine Operation Area ....................................... 23

Operation .......................................................................... 24

- Starting Cold Engine ................................................. 24

- Starting Warm Engine ............................................... 25

- Stopping Engine ........................................................ 26

Maintenance ..................................................................... 26

- Skill Levels ................................................................ 26

- Maintenance Intervals .............................................. 27

- Air Filter ................................................................... 28

- Fuel Filter ................................................................. 28

- Spark Plug ................................................................. 29

- Cooling System Cleaning .......................................... 29

- Exhaust System ........................................................ 30

- Carburetor Adjustment Emission ...................... 31

- Lubrication ................................................................ 31

- Nylon Line Replacement .......................................... 32

- Sharpen Metal Blade ................................................ 33

Troubleshooting ................................................................ 34

Storage .............................................................................. 35

Servicing Information ........................................................ 36

- Parts .......................................................................... 36

- Service ....................................................................... 36

- ECHO Customer Assistance .................................... 36

- Warranty Card .......................................................... 36

- Additional or Replacement Manuals ........................ 36

- Manual Ordering Instructions .................................. 36

Specifications, descriptions and illustrative material in this
literature are as accurate as known at the time of publica­tion, but are subject to change without notice. Illustrations
may include optional equipment and accessories, and may
not include all standard equipment.

CopyRight© 1999 By Echo, Incorporated
All Rights Reserved.

GRASS TRIMMER/BRUSH CUTTER

OPERATOR'S MANUAL

MANUAL SAFETY SYMBOLS & IMPORTANT INFORMATION

Throughout this manual and on the product itself, you will find safety
alerts and helpful, information messages preceded by symbols or key
words. The following is an explanation of those symbols and key
words and what they mean to you.

This symbol accompanied by the words WARNING and
DANGER calls attention to an act or condition that can lead to
serious personal injury to operator and bystanders.

The circle with the slash symbol means whatever is shown
within the circle is prohibited.

IMPORTANT The enclosed message
provides information necessary for the
protection of the unit.

NOTE This enclosed message provides tips for
use, care and maintenance of the unit.

3

SAFETY

GENERAL DESCRIPTION

IMPORTANT

See Description and Specification sections for full description and illustration of model variation in power head,
handle type, harness and debris shield/cutting attachment.

CUTTING ATTACHMENT

(LINE HEAD SHOWN)

FRONT

HANDLE

(LOOP SHOWN)

STOP SWITCH

AND THROTTLE

DEBRIS SHIELD

(W/DECALS)

DRIVE SHAFT

(W/DECALS)

POWER HEAD

(W/DECALS)

4

DECALS

Locate these safety decals on your unit. The complete unit illustration,
found in the "DESCRIPTION" section, will help you locate them. Make
sure the decals are legible and that you understand and follow the
instructions on them. If a decal cannot be read, a new one can be
ordered from your ECHO dealer. See PARTS ORDERING instructions
for specific information.

Shaft Decal

WARNING DANGER

• This unit can be dangerous and cause serious injury if improperly

used. To reduce injury risk to operator, helpers and bystanders,

read and understand the Operator's and Safety manuals.

• Blindness can occur from objects that are thrown or ricocheted even

with shield in place. Operators, helpers and bystanders must wear

ANSI Z87.1 approved eye protection.

• Always wear hearing protection when operating unit.

• Prevent accidental contact with unit and any cutting attachment.

Maintain a 15M (50 ft.) radius, DANGER ZONE surrounding the

operator. ONLY the operator, dressed in proper protective clothing

should be in the DANGER ZONE.

• Beware of KICKOUT (blade thrust) when using blades. Special

precautions are necessary for blade operation, see your Operator's

and Safety Manuals. ONLY install ECHO approved blades on

Brush Cutters (SRM) models equipped with proper blade shield, U-

handles, harness, blade collar, nut and cotter pin.

• Blade/Cutting attachment does not stop immediately after releasing

throttle. Keep hands and feet clear of blade/cutting attachment

unless engine is shut off and cutting attachment is not moving.

• INSPECT BLADES BEFORE USE.

• DO NOT USE DAMAGED, CRACKED, BENT, DULL OR

IMPROPERLY SHARPENED BLADES.

• Do not remove shields, modify the unit or install attachments or

parts not approved by ECHO. Approved attachment information

and replacement Operator's and Safety Manuals are available from

your ECHO dealer or by writing: ECHO, INCORPORATED, 400

OAKWOOD RD., LAKE ZURICH, IL 60047.

Debris Shield Decal

Plastic Debris

Shield

Metal Debris

Shield

INTERNATIONAL SYMBOLS

Symbol form/shape

Symbol

description/application

"WARNING, SEE

OPERATOR'S

MANUAL

Symbol form/shape

Symbol

description/application

Hot

Surface

GRASS TRIMMER/BRUSH CUTTER

OPERATOR'S MANUAL

Symbol form/shape

Symbol

description/application

Emergency stop

Symbol form/shape

Symbol

description/application

Fuel and oil mixture

5

Wear eyes, ears and

head protection

Wear hand and

foot protection

Safety/Alert

Keep bystanders and helpers

away 15 m (50 ft.).

Finger Severing

DO NOT allow

flames or sparks

near fuel.

DO NOT smoke

near fuel.

EQUIPMENT

Before operation a complete check of the unit must be performed;

• Check unit for loose/missing nuts, bolts and screws. Tighten and/or
replace as needed.

Carburetor adjustment

- High speed mixture

Carburetor adjustment

- Idle speed

Carburetor adjustment

- Low speed mixture

Blade and string

line capable

Do not exceed

10,000 RPM.

Primer Bulb

Ignition
ON/OFF

Engine choke

control.

Do not operate
without guards

and shields in

place.

BEWARE

- Thrown,
Ricochet

objects

• Inspect fuel lines, tank and area around carburetor for fuel leaks. DO
NOT operate unit if leaks are found.

• Inspect shield for damage and ensure that the cut-off knife issecurely
in place. Replace if either is damaged or missing.

• Check that the cutting attachment is firmly attached and in safe
operating condition.

• Check that front (loop) handle and shoulder strap/or shoulder/
waist harness are adjusted for safe, comfortable operation. See
Assembly Section for proper adjustment.

6

FUEL

WARNING DANGER

Fuel is VERY flammable. Use extreme care when mixing, storing or
handling or serious personal injury may result.

• Use an approved fuel container.

• DO NOT smoke near fuel.

• DO NOT allow flames or sparks near fuel.

• Fuel tanks/cans may be under pressure. Always loosen fuel caps
slowly allowing pressure to equalize.

• NEVER refuel a unit when the engine is HOT!

• NEVER refuel a unit with the engine running.

• DO NOT fill fuel tanks indoors. ALWAYS fill fuel tanks outdoors
over bare ground.

• Securely tighten fuel cap after refueling.

• Inspect for fuel leakage. If fuel leakage is found, do not start or
operate unit until leakage is repaired.

After Refueling;

• Wipe any spilled fuel from the unit.

• Move at least 3 M (10 ft.) from refueling location before starting.

After Use;

• DO NOT store a unit with fuel in its tank. Leaks can occur. Return
unused fuel to an approved fuel storage container.

PERSONAL CONDITION & SAFETY EQUIPMENT

WARNING DANGER

Trimmer/Brush Cutter users risk injury to themselves and others if the trimmer/brush cutter is used improperly
and or safety precautions are not followed. Proper clothing and safety gear must be worn when operating a
trimmer.

Physical Condition --

Your judgment and physical dexterity may not be good:

- if you are tired or sick,

- if you are taking medication,

- if you have taken alcohol or drugs.

Operate unit only if you are physically and mentally well.

GRASS TRIMMER/BRUSH CUTTER

Eye Protection --

Wear eye protection that meets ANSI Z87.1 or CE requirements
whenever you operate the trimmer.

Hand Protection --

Wear no-slip, heavy duty work gloves to improve your grip on the
Brush Cutter handles. Gloves also reduce the transmission of machine
vibration to your hands.

Hearing Protection --

ECHO recommends wearing hearing protection whenever unit is used.

Proper Clothing --

Wear snug fitting, durable clothing;

- Pants should have long legs, shirts with long sleeves.

- DO NOT WEAR SHORTS,

- DO NOT WEAR TIES, SCARVES, JEWELRY.

OPERATOR'S MANUAL

7

Wear sturdy work shoes with non-skid soles;

- DO NOT WEAR OPEN TOED SHOES,

- DO NOT OPERATE UNIT BAREFOOTED.

Hot Humid Weather --

Heavy protective clothing can increase operator fatigue which may lead
to heat stroke. Schedule heavy work for early morning or late afternoon
hours when temperatures are cooler.

SAFE OPERATION

Determine Operation Area

- Provide all operators of this equipment with the operator's manual and
instructions for safe operation.

- Review the area to be trimmed. Look for hazards that could
contribute to unsafe conditions.

- Spectators and fellow workers must be warned, and children and
animals prevented from coming nearer than 15M (50 ft.) while
the trimmer is in use.

15M

(50 ft.)

8

Operation

Use Proper Clothing & Equipment

- Before starting the unit, equip yourself and any other personworking
within the 15M (50 ft.) Safety Zone with the required Protective
Equipment and clothing.

Avoid Hot Surfaces

- During operation, the complete unit, especially the drive shaft
housing and the bearing housing may become very hot, too hot to
touch. Avoid contact during and immediately after operation.

Keep A Firm Grip

- Hold the front and rear handles with both hands with thumbs and
fingers encircling the handles.

Keep A Solid Stance

- Maintain footing and balance at all times. Do not stand on slippery,
uneven or unstable surfaces. Do not work in odd positions or on
ladders. Do not over reach.

GRASS TRIMMER/BRUSH CUTTER

EXTENDED OPERATION/EXTREME CONDITIONS

Vibration and Cold --

It is believed that a condition called Raynaud’s Phenomenon, which
affects the fingers of certain individuals may be brought about by
exposure to vibration and cold. Exposure to vibration and cold may
cause tingling and burning sensations followed by loss of color and
numbness in the fingers. The following precautions are strongly
recommended because the minimum exposure which might trigger the
ailment is unknown.

• Keep your body warm, especially the head, neck, feet, ankles,
hands and wrists.

• Maintain good blood circulation by performing vigorous arm
exercises during frequent work breaks and also by not smoking.

• Limit the hours of operation. Try to fill each day with jobs where
operating the trimmer or other hand-held power equipment is not
required.

• If you experience discomfort, redness and swelling of the fingers
followed by whitening and loss of feeling, consult your physician
before further exposing yourself to cold and vibration.

OPERATOR'S MANUAL

9

Repetitive Stress Injuries --

It is believed that overusing the muscles and tendons of the fingers,
hands, arms and shoulders may cause soreness, swelling, numbness,
weakness and extreme pain in those areas. Certain repetitive hand
activities may put you at a high risk for developing a Repetitive Stress
Injury (RSI). An extreme RSI condition is Carpal Tunnel Syndrome
(CTS), which could occur when your wrist swells and squeezes a vital
nerve that runs through the area. Some believe that prolonged exposure
to vibration may contribute to CTS. CTS can cause severe pain for
months or even years. To reduce the risk of RSI/CTS, do the following:

• Avoid using your wrist in a bent, extended or twisted position.
Instead try to maintain a straight wrist position. Also, when grasp­ing, use your whole hand, not just the thumb and index finger.

• Take periodic breaks to minimize repetition and rest your hands.

• Reduce the speed and force with which you do the repetitive
movement.

• Do exercises to strengthen the hand and arm muscles.

• Immediately stop using all power equipment and consult a doctor if
you feel tingling, numbness or pain in the fingers, hands, wrists or
arms. The sooner RSI/CTS is diagnosed, the more likely permanent
nerve and muscle damage can be prevented.

10

DESCRIPTION

The ECHO product you purchased has been factory pre-assembled for your convenience. Due to packaging restrictions,
shield installation and other assembly may be necessary.

After opening the carton, check for damage. Immediately notify your retailer or ECHO Dealer of damaged or missing parts.
Use the contents list to check for missing parts.

CONTENTS

Contents List

Items

1 - Power Head
1 - Drive Shaft Assembly
1 - Plastic Bag (co-pack)

- 1, Operator's Manual

- 1, Safety Manual

- 1, Warranty Registration Card

- 1, Limited Warranty Statement

- 1, Plastic shield

- 1, Tool Bag

--1, 8mm x 10mm wrench

--1, scrench

--1, locking tool

- 1, Nylon Trimmer Head

- 1, Safety Glasses

- 1, 2-Stroke Oil Sample, 2.6 oz.

- 1, Shoulder Harness w/hip pad

- 1, Shoulder Harness w/o hip pad

- 1, Plastic Bag

--1, shield plate

--3, 5mm x 15mm screws (shield mounting)

- 1, Plastic Bag (for blade use only)

--1, metal shield

--1, shield bracket

--1, plastic bag

---1, 8mm x 55mm screw (handle mounting)

---1, washer, circular

- 2, cable clips

- 1, Plastic Bag

-- 3, 5mm x 15mm screws (shield mounting)

-- 2, 5mm x 8mm screws (bracket to shield)

-- 4, 5mm nuts

-- 4, 5mm lockwashers

-- 1, Harness clamp

2400 1E

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2410 1E

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BLADE TERMS & DEFINITIONS

Blade Convertible

Models (SRM-2400) can be converted to utilize blades. Plastic/nylon blades require a, "Blade Conversion Kit", which
includes a shoulder harness, and steel shield with necessary attaching hardware. Steel/metal blades also require the,
"Blade Conversion Kit", plus a "U-Handle Kit" or "Combo Kit".

Dedicated Blade Capable

Models (SRM 2410) include both the "Blade Conversion Kit", and "U-Handle Kit".

EMISSION CONTROL

The emission control system for this engine is EM (Engine
Modification).

Emission Control Label located on Engine

(EXAMPLE ONLY, information on label varies by FAMILY).

1

2

GRASS TRIMMER/BRUSH CUTTER

OPERATOR'S MANUAL

IMPORTANT ENGINE INFORMATION
ENGINE FAMILY : TEH021UB24RA
DISPLACEMENT : 23.6 cc
THIS ENGINE MEETS U.S. EPA PHI AND 1995 ­1999 CALIFORNIA EMISSION REGULATIONS
FOR ULGE ENGINES. REFER TO OWNER’S
MANUAL FOR MAINTENANCE SPECIFICA­TIONS AND ADJUSTMENTS.

12 13

20

19

11

SAFETY
VIDEO

25

14

8

9

10

11

18

17

7

5

16

6

5

11

15

4

3

23

24

22

21

12

1. OPERATOR'S MANUAL - Included in plastic bag (co-pack). Read before operation and keep in a safe place for
future reference, i.e., operation, maintenance, storage and specifications.

2. SAFETY MANUAL - Included in plastic bag (co-pack). Read before operation and keep in a safe place for future
reference to learn proper, safe operating techniques.

3. POWER HEAD - Includes the Engine, Clutch, Fuel System, Ignition System and Recoil Starter.

4. GRIP - Rear (right hand) handle.

5. STOP SWITCH - "SLIDE SWITCH" mounted on top of the Throttle Trigger Housing. Move switch FORWARD to
RUN, BACK to STOP.

6. FRONT HANDLE - The front (loop) handle is not assembled to the Drive Shaft assembly (some models) and must be
positioned for proper cutting attitude and operator comfort.

7. DRIVE SHAFT ASSEMBLY - Includes the Rear (right hand) Handle assembly, Gear Housing assembly, front (loop,
left hand) Handle assembly, Flexible Drive Cable and Safety Decal.

8. NYLON CUTTING ATTACHMENT - Contains replaceable nylon trimming line that advances when the trimmer head
is tapped against the ground while the head is turning at normal operating speed.

9. CUT-OFF KNIFE - Automatically trims line to the correct length: 5" after head is tapped on the ground. If trimmer is
operated without a cut-off knife the line will become too long, the engine will overheat and engine damage may occur.

10. PLASTIC DEBRIS SHIELD ASSEMBLY - Included in plastic bag (co-pack). MUST be installed on unit before use,
see Assembly Instructions. Shield assembly includes the Cut-Off Knife and Safety Decal. Mounts on the Gear
Housing Assembly just above the cutting attachment. Helps protect the operator by deflecting debris produced
during the trimming operation. This shield must be replaced with the steel shield for blade use.

11. THROTTLE TRIGGER - Spring loaded to return to idle when released. During acceleration, press trigger gradually
for best operating technique.

12. ARM REST - Provides arm rest during operation and protects arm from the hot engine.

13. SPARK PLUG - Provides spark to ignite fuel mixture.

14. MUFFLER/SPARK ARRESTOR - The muffler controls the exhaust noise while the spark arrestor prevents hot,
glowing particles of carbon from leaving the muffler where they could possibly start a fire. Built in accordance with
SAEJ335, this product is approved for use on U.S. Forest Land and within the states of California, Maine, Oregon and
Washington if the spark arresting screen is in place and in good repair.

15. FUEL TANK - Contains fuel and fuel filter.

16. RECOIL STARTER HANDLE - Pull recoil handle slowly until starter engages, then quickly and firmly. When engine
starts, return handle slowly. DO NOT let handle snap back or damage to unit will occur.

17. FUEL TANK CAP - Covers and seals fuel tank opening.

18. PRIMER BULB - Pumping primer bulb before starting engine draws fresh fuel from the fuel tank priming the carbure­tor for starting. Pump the bulb 10 times until fuel is visible in clear fuel return line.

19. AIR CLEANER - Contains replaceable filter element.

20. CHOKE - The choke control lever is located on the top of the air filter case. Pull choke knob up to close the choke
for cold starting. Push knob down for the "RUN" position.

21. SHOULDER HARNESS - An adjustable strap that suspends the unit from the operator. Using the strap reduces
operator fatigue.

22. METAL BLADE SHIELD - Required when unit is equipped with blades. Do not operate unit without shield.

23. BLADE - Circular blade for grass, weed or brush cutting applications. Harness, metal shield and U-handles required
for blade operation.

24. U-HANDLE - Required for metal blade operation.

25. SAFETY VIDEO - (Not included with unit) P/N 99922202540 English version only is available at a cost of $5.00 from
ECHO, INC. or any authorized ECHO dealer. The video overviews safety precautions and proper operating tech­niques and is supplemental to the Safety Manual. Read and understand the Safety Manual for complete information
on safe operation.

GRASS TRIMMER/BRUSH CUTTER

OPERATOR'S MANUAL

SPECIFICATIONS

MOD EL SR M-2400 1E SR M-2410 1E

Length 1500 mm (59.0 in.) 1500 mm (59.0 in.)

W idth 330 mm (13.0 in.) 600 mm (23.6 in.)

Height 360 mm (14.2 in.) 360 mm (14.2 in.)

W eight (dry) w/Cutting attachment 5.5 kg (12.1 lb.) 5.8 kg (12.7 lb.)

Engine Type Air cooled, two-stroke, single cylinder gasoline engine

13

Bore

Stroke

D ispla cem ent

E xhaust Spark Arrestor Muffler

Carburetor Walbro diaphragm model W YJ w/purge

Ignition System Flywheel magneto, capacitor discharge

Spark Plug

Fuel Mixed (Gasoline and Two-stroke Oil)

Fuel/O il Ratio 50:1 E C HO High Performance, two-stroke air cooled engine oil

Gasoline

Oil 50:1 E C HO High Performance, two-stroke air cooled engine oil

Fuel Tank Capacity

Recoil S tarter System Automatic Recoil Starter

Clutch Centrifugal Type

89 Octane unleaded. DO NOT use fuel containing methyl

NGK B PM -7Y, (Gap 0.65 mm (0.026 in.)

alcohol, m ore than 10% ethyl alcohol or 15% MTBE .

34.0 m m (1.34 in.)

2 6 .0 m m (1 .0 4 in.)

23.6 cc (1.44 cu. in.)

0.4 lit. (14.0 US fl. oz.)

Drive Shaft

Rotating Direction Counter Clockwise viewed from top

Cutter Head Nylon line head (2-line) with .095 C rossfire™

Handles* D - Loop w/rubber antivibe grip,

Rear rubber grip

U-Handle Optional Standard

Shoulder Harness Optional Standard

Idle S peed 2400 - 3000 RPM

W ide Open Throttle S peed

(W.O.T.) with Nylon Line Head

W ide Open Throttle S peed

(W.O.T.) with Blade (Blade)

1/4" Flex Shaft

Line capacity 13m (40 ft.)

U-Handle

8800 - 9300 RPM

9500 - 11000 RPM

* Install and use U-Handle when operating any model with blade.

14

ASSEMBLY

ECHO

APPROVED OPTIONAL ATTACHMENTS

WARNING DANGER

• Use only ECHO approved attachments for these models. Serious injury may result from the use of non approved
attachment combinations. Read and comply with all safety instructions listed in this manual and attachment
manual.

• ECHO, INC. will not be responsible for the failure of cutting devices, attachments or accessories which have not
been tested and approved by ECHO for use with these units.

PLASTIC SHIELD INSTALLATION

(for Nylon Line Operation)

Tools Required: Screwdriver.

Parts Required: Plastic Shield, Shield Plate, three (3) 5mm x 15mm

screws.

NOTE

The plastic shield is for use with the Nylon Line Head only.
Install Metal Shield when using plastic or metal blades.

1. (SRM-2410) Remove split pin, blade nut and lower plate from PTO
shaft.

1. (SRM-2400) Remove plastic sleeve from PTO shaft.

2. Snap the shield on the bottom of the bearing housing flange.

3. Place shield plate on shield, align holes and install three (3)
screws.

NYLON LINE HEAD INSTALLATION

Tools Required: Head Locking Tool, 17x19mm Scrench
Parts Required: Nylon Line Head.

NOTE

On SRM-2400 use steps 1, 5 and 6 only.)

1. Align locking hole in upper plate (B) with notch in edge of gear
housing and insert head locking tool (A).

2. Remove split pin from hole in PTO shaft.

3. Remove 10mm nut by turning it clockwise (as viewed from under­side of grass shield) with 17x19mm scrench.

4. Remove lower plate. Retain lower plate, 10mm nut and split pin for
future use.

5. Be sure upper plate (B) remains on PTO shaft.

A

B

6. Thread line head onto PTO shaft by turning it counter clockwise
until head is tight against upper plate (B).

GRASS TRIMMER/BRUSH CUTTER

OPERATOR'S MANUAL

BLADE INSTALLATION

All Models.

IMPORTANT

If non-standard monofilament head, METAL/PLASTIC blade or cultivator etc. is used, THE CARBURETOR
MUST BE RE-SET or serious engine damage may occur. See "Carburetor Adjustment" pages 31 and "Specifica­tions" page 13 of this manual.

WARNING DANGER

You must install a U-Handle Kit and Blade Conversion kit before operating this unit using metal blades, otherwise
serious injury may result.

Install Metal Shield

15

Tools Required: 8mm x 10mm Open End Wrench, Screwdriver, Scrench.

Parts Required: Metal Shield, Bracket, 3- 5mm x 15mm screws w/

captivated flat and lockwasher (metal shield to gear housing), 2- 5mm x
8mm screws, 4- 5mm nuts, 4- 5mm lockwashers (bracket to shield and
bracket to gear housing).

1. If necessary, remove nylon line head and plastic shield.

2. Loosely attach bracket (A) to shield (B) and attach to bottom of

gear housing (C) with screws and nuts provided. Tighten all
attaching hardware.

Install Blade

Tools Required: Locking Tool, scrench.

Parts Required: Upper Plate w/ 20mm pilot, Lower Plate, 10mm Nut w/

LH threads, 2mm x 25mm Split Pin (cotter pin).

3. Install upper plate (D) on splined PTO shaft. Blade installation

requires use of Upper Plate (D) with 20mm pilot. Upper plate
with 37mm pilot of the SRM-2400 should be retained for use with
nylon line head.

BLADE UPPER PLATE

SRM-2400

NYLON HEAD

UPPER PLATE

4. Place Blade (E) over upper plate pilot, install the Lower Plate (F)

and 10mm LH nut (G). Tri-Cut Blade (H) is installed with Glide
Cup (J).

5. Insert Locking Tool (K) through hole in upper plate and notch in

gear housing to prevent PTO shaft from turning. Tighten nut
and secure with Split Pin (L).

16

HARNESS CLAMP INSTALLATION

NOTE

Some models require installation of Harness Clamp. If your unit
does not have a clamp, follow these directions.

Tools Required: Screwdriver, 8 x 10mm Open End Wrench.

Parts Required: Harness Clamp, 4 x 18mm Hexagon Head Bolt, Link,

Spacer.

6. Remove shield and gear housing as an assembly.
a. Loosen two (2) screws that clamp the gear housing to the

drive shaft housing.

b. Remove locating screw found at the top of the gear housing.

Pull shield and gear housing assembly from the drive shaft
assembly.

IMPORTANT

Prevent flexible drive cable from sliding from drive shaft housing.
If cable does slide free, clean dirt from cable and re-lubricate with
lithium based grease prior to re-assembly.

7. Remove front handle.
a. Remove four (4) screws and nuts and handle support from

handle.

b. Remove front handle.

8. Install clamp.

a. Slightly spread clamp and slide up shaft.
b. Install single link using spacer, DO NOT tighten at this time.

9. Install gear housing, shield and front handle.

10. Balance unit.
a. Put on harness and attach unit to harness.
b. Slide harness clamp up or down until unit balances with line

head approximately 2" - 3" from the ground.

c. Tighten harness clamp screw.

GRASS TRIMMER/BRUSH CUTTER

FRONT HANDLE INSTALLATION

Tools Required: Screwdriver.

Parts Required: None

1. Position front handle for comfortable operation and secure with

screws.

OPERATOR'S MANUAL

17

U-HANDLE INSTALLATION

Tools Required: 8mm x 10mm Open End Wrench, Slotted Screwdriver,
3mm and 4mm Hex Wrench, Scrench, Pliers.

Parts Required: U-Handle Kit P/N 99944200521

NOTE

On model 2410 use Steps 1, 10, 12, 13, 14B, 15, 17 and 18 only.

1. Close choke and remove air filter cover.

2. Disconnect ignition stop lead (A). Remove bolt (B) and ground

lead.

3. Remove inner throttle linkage from carburetor swivel (C).

4. Remove throttle linkage (D) from throttle linkage fixture (E).

5. Loosen two (2) bolts (F) and pull drive shaft assembly from clutch

case.

6. Loosen two (2) rear handle screws (G) and pull rear handle (H) from

the drive shaft assembly.

D

B

A

E

C

F

H

7. Loosen four (4) screws and remove front handle (J).

G

J

18

8. Position lower U-Handle bracket (K) 400mm (15-3/4 in.) from
engine end of drive shaft. Secure with three (3) 5mm x 30mm bolts.

9. Position harness hook 220mm (8-5/8 in.) from engine end of drive
shaft assembly. DO NOT tighten at this time.

10. Install upper U-Handle and bracket on lower bracket and secure
with one (1) 8mm x 55mm bolt (L) and large circular washer.

11. Install power head and align gear box, power head and U-Handles.
Tighten all screws.

12. Route throttle linkage and ignition lead assembly around front of
U-Handle bracket and clip to drive shaft as shown.

400 mm (15-3/4 in.)

K

220 mm (8-5/8 in.)

L

ENGINE

END

13. Place throttle linkage (D) through adjustment fixture (E) and install
wire end into large carburetor throttle swivel hole (C). Check
throttle for freedom of movement and that wide open throttle / low
idle extremes are adjusted properly. The throttle linkage must be
adjusted by moving the adjustment fixture (E). Consult with your
Echo Dealer for correct adjustment procedure.

WARNING DANGER

The cutting attachment should not rotate at idle. If attachment
rotates, readjust carburetor according to "Carburetor Adjustment"
instructions in this manual or see your ECHO Dealer, otherwise
serious personal injury may result.

SRM-2400

14A. Connect jumper lead (M) spade terminal end to power head

ignition lead (A). Install black wire holder (N) and ground lead (O)
on clutch case with bolt (B). Connect female (M) and male (O)
ignition leads to male and female lead from throttle linkage.

D

E

C

A

O

M

B

N

GRASS TRIMMER/BRUSH CUTTER

SRM-2410

14B. Connect ignition stop lead (A). Install ground lead with bolt (B).

OPERATOR'S MANUAL

19

15. Remove left side clutch case bolt (P). Install metal bracket clamp

(Q) with curved end down. Install throttle linkage into bracket
clamp and pinch tight with pliers.

16. Loosely fold ignition leads and retain them with black wire holder

(N).

17. Install air filter and cover.

A

B

PP

P

PP

QQ

Q

QQ

18. Balance unit.

a. Put on harness and attach unit to harness.

b. Slide harness clamp (R) up or down until unit balances with

cutting attachment approximately 2 - 3" from ground.

c. Tighten harness clamp screw.

NN

N

NN

RR

R

RR

20

PRE - OPERATION

OPERATION

Preparing the Trimmer/Brush Cutter for Blade Use

WITH BLADES

WARNING DANGER

Blade use DEMANDS specific Brush Cutter configuration. Operation without specified shield and harness can
result in serious personal injury.

Plastic and Nylon Blades Require "Blade Conversion Kit," P/N 99944200410
(metal shield [A] and shoulder harness [B]).

A

B

Steel/Metal Blades Require Combo Kit P/N 99944200521

Choosing the Correct Blade

WARNING DANGER

The type of Blade used MUST be matched to the type and size of material cut. An improper or dull blade can
cause serious personal injury. Blades MUST be sharp. Dull blades increase the chance of kick out and injury
to yourself and bystanders.

Plastic/Nylon Blades may be used whereever the nylon line head is
used. DO NOT use this blade for heavy weeds or brush!

GRASS TRIMMER/BRUSH CUTTER

8 Tooth Weed/Grass Blade (P/N 69600120331) is designed for grass,
garden debris and thick weeds. DO NOT use this blade for brush or
heavy woody growth, 3/4" in. (19 mm) diameter or larger.

Brush/Clearing Blade (P/N 69500120330) is designed for cutting brush
and woody growth up to 3" in. (76 mm) diameter.

Use Shoulder/Waist Harness (P/N 30100052131) Use of the Shoulder/
Waist Harness is recommended for ALL Trimmer/Brush Cutter use, not
just Blade operation. The Shoulder/Waist Harness when used in a
trimming operation with nylon line head suspends the trimmer from the
operator's shoulder and reduces operator fatigue.

OPERATOR'S MANUAL

21

During blade operation, the same fatigue reduction is achieved. Safety
to the operator is also enhanced by reducing the possability of blade
contact with the operators hands and feet by restricting trimmer
movement.

NOTE

In case of Emergency, pull up on the Quick Release Collar to
disconnect the trimmer from the harness.

22

FUEL

Fuel Requirements

Gasoline - Use 89 Octane [ ] gasoline or gasohol known to be good
quality. Gasohol may contain up to 10% Ethyl (grain) alcohol or 15%
MTBE (methyl tertiary-butyl ether). Gasohol containing methyl (wood)
alcohol is NOT approved.

Two Stroke Oil - A two-stroke engine oil meeting ISO-L-EGD Standard
(ISO/CD 13738), must be used. Echo brand Premium 50:1 oil meets this
standard. Engine problems due to inadequate lubrication caused by
failure to use an ISO-L-EGD approved oil, such as Echo Premium 50:1
Two-stroke Oil, will void the two-stroke engine warranty. (Emission
related parts
oil used, per the statement listed in the EPA Phase I/California Emission
Defect Warranty Explanation.)

Mixing - Follow directions on the oil container.

only are covered for two years, regardless of two-stroke

Handling Fuel

R + M

2

WARNING DANGER

Fuel is VERY flammable. Use extreme care when mixing, storing or
handling or serious personal injury may result.

• Use an approved fuel container.

• DO NOT smoke near fuel.

• DO NOT allow flames or sparks near fuel.

• Fuel tanks/cans may be under pressure. Always loosen fuel caps
slowly allowing pressure to equalize.

• NEVER refuel a unit when the engine is HOT!

• NEVER refuel a unit with the engine running.

• DO NOT fill fuel tanks indoors. ALWAYS fill fuel tanks outdoors
over bare ground.

• Securely tighten fuel cap after refueling.

• Inspect for fuel leakage. If fuel leakage is found, do not start or
operate unit until leakage is repaired.

After Refueling;

• Wipe any spilled fuel from the unit.

• Move at lease 3M (10 ft.) from refueling location before starting the
engine.

After use;

• DO NOT store a unit with fuel in its tank. Leaks can occur. Return
unused fuel to an approved fuel storage container.

Storage - Fuel storage laws vary by locality. Contact your local
government for the laws affecting your area. As a precaution, store fuel
in an approved, air tight container. Store in a well ventilated, unoccu­pied building, away from sparks and flames. Do not store fuel longer
than 30 days.

GRASS TRIMMER/BRUSH CUTTER

OPERATOR'S MANUAL

23

IMPORTANT

Stored fuel ages. Do not mix more fuel than you expect to use in
thirty (30) days, ninety (90) days when a fuel stabilizer is added.

IMPORTANT

Stored two-stroke fuel may separate. ALWAYS shake fuel con­tainer thoroughly before each use.

EQUIPMENT CHECK

Before operation a complete check of the unit must be performed;

• Check unit for loose/missing nuts, bolts and screws. Tightenand/or
replace as needed.

• Inspect fuel lines, tank and area around carburetor for fuel leaks. DO
NOT operate unit if leaks are found.

• Inspect shield for damage and ensure that the cut-off knife is
securely in place. Replace if either is damaged or missing.

SMTWTF S

123456 7

8 9 10 1112 13 14
15 16 17 1819 20 21
22 23 24 2526 27 28
29 30 31

• Check that the cutting attachment is firmly attached and in safe
operating condition.

• Check that front (loop) handle and shoulder strap/ or shoulder/
waist harness are adjusted for safe, comfortable operation. See
Assembly section for proper adjustment.

DETERMINE OPERATION AREA

• Review the area to be trimmed. Look for hazards that could

contribute to unsafe conditions.

• Spectators and fellow workers must be warned, and children and

animals prevented from coming nearer than 15M (50 ft.) while the
trimmer is in use.

15M

(50 ft.)

24

OPERATION

• Provide all operators of this equipment with the operator's manual and
instructions for safe operation.

• Before starting the unit, equip yourself and any other person
working within the 15M (50 ft.) Safety Zone with the required
Protective Equipment and clothing.

• During operation, the complete unit, especially the drive shaft
housing and the bearing housing may become very hot, too hot to
touch. Avoid contact during and immediately after operation.

STARTING COLD ENGINE

WARNING DANGER

The cutting attachment should not rotate at idle. If attachment
rotates, readjust carburetor according to "Carburetor Adjustment"
instructions in this manual or see your ECHO Dealer, otherwise
serious personal injury may result.

1. Stop Switch - Start/Run.

Move stop switch button (A) forward away from the STOP
position.

2. Choke Lever - Cold Start.

Move choke (B) to “Cold Start” Position.

3. Primer Bulb -Prime.

Pump primer bulb (C) 10 times. Fuel will be visible and flow freely in
the clear fuel tank return line.

WARNING DANGER

Inspect starting area for hazards such as rocks, glass, debris etc.
which could be contacted by the cutting attachment when starting.
Keep helpers and bystanders at least 15 M (50 ft.) from starting
area, otherwise serious personal injury may result.

A

B

C

4. Start - Pull Rope.

Lay the trimmer on a flat clear area and pull the recoil starter handle
(D) until engine fires.

D

GRASS TRIMMER/BRUSH CUTTER

5. Open Choke - Run.
Move the choke lever back to the OPEN - RUN position. Restart
engine if necessary and allow to warm up running at idle for several
minutes.

NOTE

If engine does not start with choke in “Run” position after 4 pulls,
repeat instructions.

6. After engine warm up, gradually depress throttle trigger to increase
engine RPM to operating speed.

STARTING WARM ENGINE

The starting procedure is the same as Cold Start except DO NOT close
the choke.

OPERATOR'S MANUAL

25

WARNING DANGER

The cutting attachment should not rotate at idle. If attachment
rotates, readjust carburetor according to "Carburetor Adjustment"
instructions in this manual or see your ECHO Dealer, otherwise
serious personal injury may result.

1. Stop Switch - Start/Run. Move Stop Switch button (A) forward
away from the STOP position.

2. Primer - Pump Bulb. Pump primer bulb (C) until fuel is visible
in the "Clear" fuel return line.

3. Start - Pull Rope. Lay the trimmer on a flat clear area and pull
the recoil starter handle (D) until the engine fires.

A

C

D

NOTE

If engine does not start after 4 pulls, use Cold Start Procedure.

D

26

STOPPING ENGINE

1. Release Throttle. Allow engine to idle for a minute.

2. Stop Switch - Stop. Move stop switch button (A) backward to
STOP position.

WARNING DANGER

If engine does not stop when stop switch is moved to STOP
position, close choke - COLD START position - to stall engine.
Have your ECHO dealer repair stop switch before using trimmer
again.

A

MAINTENANCE

Your ECHO trimmer is designed to provide many hours of trouble free service. Regular scheduled maintenance will help
your trimmer achieve that goal. If you are unsure or are not equipped with the necessary tools, you may want to take your
unit to an ECHO Service Dealer for maintenance. To help you decide whether you want to DO-IT-YOURSELF or have the
ECHO Dealer do it, each maintenance task has been graded. If the task is not listsed, see your ECHO dealer for repairs.

SKILL LEVELS

Level 1 = Easy to do. Most required tools come with unit.

Level 2 = Moderate difficulty. Some specialized tools may be required.

Level 3 = Experience required. Specialized tools are required.

ECHO offers REPOWERTM Maintenance Kits and Parts to make your maintenance job easier. Below each task heading
are listed the various part numbers required for that task. See your ECHO dealer for these parts.

MAINTENANCE INTERV ALS

GRASS TRIMMER/BRUSH CUTTER

OPERATOR'S MANUAL

27

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28

AIR FILTER

Level 1.

Tools required: Cleaning brush, 1" or 2" medium bristle paint brush.

Parts required: 90030 REPOWERTM AIR & FUEL FILTER KIT.

1. Close choke (Cold Start Position). This prevents dirt from
entering the carburetor throat when the air filter is removed.
Brush accumulated dirt from the air cleaner area.

2. Remove the air cleaner cover. Clean and inspect the element for
damage. If element is fuel soaked and very dirty, replace.

3. If element can be cleaned and reused, be certain it:

-still fits the cavity in the air cleaner cover.

-is installed with the original side out.

NOTE

Carburetor adjustment may be needed after air filter cleaning/
replacement.

FUEL FILTER

Level 1.

Tools required: Fuel line hook. 8"-10" (203-254 mm) length of wire with
one end bent into a hook. Clean rag, funnel, and an approved fuel
container.

Parts required: 90030 REPOWERTM AIR & FUEL FILTER KIT.

WARNING DANGER

Fuel is VERY flammable. Use extreme care when mixing, storing or
handling.

1. Use a clean rag to remove loose dirt from around fuel cap and
empty fuel tank.

2. Use the “fuel line hook” to pull the fuel line and filter from the
tank.

3. Remove the filter from the line and install the new filter.

GRASS TRIMMER/BRUSH CUTTER

SPARK PLUG

Level 2.

Tools Required: Scrench (combination socket wrench & screw driver
supplied with unit) Feeler gauge, preferably a wire gauge. Brush.

Parts Required: Spark Plug, NGK BPM-7Y

1. Remove spark plug and check for fouling, worn and rounded

center electrode.

2. Clean the plug or replace with a new one. DO NOT sand blast to

clean. Remaining sand will damage engine.

3. Adjust spark plug gap by bending outer electrode.

OPERATOR'S MANUAL

29

4. Tighten spark plug to 145-155 kg/cm (125-135 in. lb.).

COOLING SYSTEM CLEANING

Level 3.

Tools required: Cross Head Screwdriver, 3 MM Hex Wrench, Pointed
Wood Stick, Cleaning Brush, 1"-2" medium bristle paint brush.

Parts Required: None if you are careful.

IMPORTANT

To maintain proper engine operating temperatures, cooling air
must pass freely through the cylinder fin area. This flow of air
carries combustion heat away from the engine.

Overheating and engine seizure can occur when:

• Air intakes are blocked, preventing cooling air from reaching the

cylinder.

• Dust and grass build up on the outside of the cylinder. This build

up insulates the engine and prevents the heat from leaving.

0.65 mm0.65 mm

0.65 mm

0.65 mm0.65 mm

(0.026 in.)(0.026 in.)

(0.026 in.)

(0.026 in.)(0.026 in.)

Removal of cooling passage blockages or cleaning of cooling fins is
considered “Normal Maintenance”. Any failure attributed to lack of
maintenance is not warranted.

1. Remove spark plug lead and throttle linkage end from the carbure-

tor swivel.

2. Remove the four screws that retain the engine cover (A). Two at

the top of the starter, two on either side of the front. Lift the cover
from the engine and lay to the front of the trimmer.

A

30

NOTE

The throttle linkage remains assembled to the cover and the spark
plug lead and grommet remain installed.

3. Use the wooden stick or brush to remove dirt form cylinder fins.

4. Remove grass and leaves from the grid between the recoil starter
and fuel tank.

5. Assemble components in reverse order.

NOTE

When installing the cover, be certain the tab of the metal deflector
shield is in the slot of the engine cover.

EXHAUST SYSTEM

Spark Arrestor Screen

Level 2.

Tools Required: Tools required: Cross Head Screwdriver, Soft Metal
Brush
Parts Required: Screen P/N 14586240630, Gasket Lid P/N 14586642031

1. Remove engine cover (A). See “Cleaning Cooling System” pages
29 & 30 for step by step instructions.

2. Place piston at Top Dead Center (TDC) to prevent carbon/dirt from
entering cylinder.

3. Remove spark arrestor screen cover (B), screen holder (C), gasket
(D) and screen (E) from muffler body.

4. Clean carbon deposits from screen and muffler components.

5. Replace screen if it is cracked, plugged or has holes burned
through.

EE

E

EE

DD

D

DD

CC

C

CC

6. Assemble components in reverse order

NOTE

When installing the engine cover, be certain the tab of the metal
deflector shield is in the slot of the engine cover.

BB

B

BB

GRASS TRIMMER/BRUSH CUTTER

CARBURETOR ADJUSTMENT

Type 1E Emission Models

Level 2.

Tools required: Screwdriver, Tachometer (ECHO P/N 99051130017).
Parts required: None.

NOTE

Every unit is run at the factory and the carburetor is set in compli­ance with EPA Phase 1 and California Emission Regulations. This
carburetor does not have acceleration and high speed adjustement
needles. Do not attempt to use carburetor adjustment procedures
provided in the Warranty/Emissions Booklet.

1. Check idle speed and reset if necessary. If a tachometer is avail-

able, idle speed screw (A) should be set to the specifications found
on page 13 "Specifications" of this manual. Turn idle screw (A)
clockwise to increase idle speed; counter clockwise to decrease idle
speed.

WARNING DANGER

When carburetor adjustment is completed, the cutting attachment
should not turn at idle, otherwise serious personal injury may
result.

OPERATOR'S MANUAL

31

A

LUBRICATION

Level 1.

Tools Required: 8 mm Open End Wrench, Screwdriver, Clean Rag.

Parts Required: Lithium Base Grease.

Gear Housing

1. Clean all loose debris from gear box.

2. Remove plug (A) and check level of grease.

3. Add grease if necessary, DO NOT over fill.

Drive Shaft

1. Loosen two (2) screws (B) and remove center locating screw (C).

Pull gear box and shield from drive shaft.

2. Pull flexible cable from the drive shaft housing, wipe clean and

recoat with a thin coating of [1/2 oz. (15 ml)] of high temperature
automotive grease.

A

3. Slide the flexible cable back in the drive housing. DO NOT get

dirt on the flex shaft.

4. Install the gear housing and shield assembly.

32

NYLON LINE REPLACEMENT

Level 1.

Tools Required: Head locking tool (if head is to be removed)

Parts Required: ECHO 0.095" Nylon Trimmer Line 40 feet (12m) long.

1. Hold drum (A) and turn spool (B) CW (clockwise) until it stops.
Pull spool from drum. DO NOT push in on spool when turning.

2. Use one piece of new nylon line (C) 40 ft. (12m) long and thread
through the molded loop (D) on the spool. Pull line tight and
adjust so one end is 6 in. (15 cm) longer than the other.

3. Hold the spool, opening toward you. Place index finger between
the two strands and wind line, tightly and evenly, in direction of
arrow marked "CC".

4. Stop when approximately 6" - 8" (15-20 cm) line (C) remains and
place ends of line in notches (E) in spool (B).

5. Feed ends of line through housing eyelets (F) and place spool (B)
over drive (G). Align pegs (H) on drive with notches in spool and
push spool into drum.

6. Pull on both lines until they come free from notches (E) in spool.

7. Hold drum (A) firmly and turn spool (B) CCW (counterclockwise)
until it stops. DO NOT push in on spool when turning.

8. Pull both lines out and trim to cut-off knife length.

GRASS TRIMMER/BRUSH CUTTER

SHARPENING METAL BLADES

Three styles of metal blades are approved for use on the ECHO
Brushcutter. The 8-tooth blade can be sharpened during normal
maintenance. The clearing blade and 80 tooth blade require profes­sional service.

Before sharpening, CLOSELY inspect blade for cracks (look at the
bottom of each tooth and the center mounting hole closely), missing
teeth and bending. If ANY of these problems are discovered, replace
the blade.

When sharpening a blade, always remove the same amount of materials
from each tooth to maintain balance. A blade that is not balanced will
cause unsafe handling due to vibration and can result in blade failure.

8-tooth Blade

Tool required: Flat file (preferred). Electric grinder if special care is
used. Round (rat tail) file for gullet (radius).

OPERATOR'S MANUAL

33

1. File each tooth at a 30 degree angle a specific number of times,

eg. 4 strokes per tooth. Work your way around the blade until
all teeth are sharp.

2. DO NOT file the 'gullet' (radius) of the tooth with the flat file.

The radius must remain. A sharp corner will lead to a crack and
blade failure.

IMPORTANT

If an electric grinder is used, use care not to overheat teeth, do not
allow tips/tooth to glow red or turn blue. DO NOT place blade in
cooling water. This will change the temper of the blade and could
result in blade failure.

3. After sharpening teeth, check each tooth radius for evidence of a

square (sharp) corner. Use the round (rat tail) file to renew the
radius.

34

TROUBLESHOOTING

Problem

Engine -- starts hard

Engine -- does not start Cause Remedy

Engine
Cranks

Engine
does not
crank

Fuel at
carburetor

Fuel at
cylinder

Spark at end
of plug wire

Spark at plug No spark

No fuel at
carburetor

No fuel at
cylinder

Muffler wet
with fuel

No spark
at end of
plug wire

at plug

Fuel strainer clogged
Fuel line clogged
Carburetor

Carburetor See your ECHO dealer

Fuel Mixture is too rich Open choke

Stop switch off
Electrical problem
Interlock switch

Spark gap incorrect
Co vered with carb on
Fouled with fuel
Spark plug defective

Internal engine problem See your ECHO dealer

Clean
Clean
See your ECHO dealer

Clean/replace air filter
Adjust carburetor
See your ECHO dealer

Turn switch on
See your ECHO dealer
See your ECHO dealer

Adjust 0.65mm (0.026in.)
Clean or replace
Clean or replace
Replace plug

Engine
runs

Dies or accelerates poorly Air filter dirty

Fuel filter dirty
Fuel vent p lug g e d
Spark plug
Carburetor
Cooling system plugged
Spark arrestor screen
plugged

Clean or replace
Replace
Replace
Clean and adjust/replace
Adjust
Clean
Clean

WARNING DANGER

Fuel vapors are extremely flammable and may cause fire and/or explosion. Never test for ignition spark near an open
spark plug opening, otherwise serious personal injury may result.

GRASS TRIMMER/BRUSH CUTTER

OPERATOR'S MANUAL

STORAGE

Long Term Storage (over 30 days)

Do not store your unit for a prolonged period of time (30 days or longer) without performing protective storage mainte­nance which includes the following:

1. Store unit in a dry, dust free place, out of the reach of children.

WARNING DANGER

Do not store in enclosure where fuel fumes may accumulate or reach an open flame or spark.

2. Place the stop switch (A) in the "OFF" position.

35

3. Remove accumulation of grease, oil, dirt and debris from exterior of
unit.

4. Perform all periodic lubrication and services that are required.

5. Tighten all the screws and nuts.

6. Drain the fuel tank completely and pull the recoil starter handle
several times to remove fuel from the carburetor.

7. Remove the spark plug and pour 7 cc (1/4 oz. 1/2 tablespoon) of
fresh, clean, two-stroke engine oil into the cylinder through the
spark plug hole.

A. Place a clean cloth over the spark plug hole.

B. Pull the recoil starter handle 2-3 times to distribute the oil inside

the engine.

C. Observe the piston location through the spark plug hole. Pull

the recoil handle slowly until the piston reaches the top of its
travel and leave it there.

8. Install the spark plug (do not connect ignition cable).

A

SERVICING I NFORMATION

PARTS

Genuine ECHO Parts and ECHO REPOWERTM Parts and Assemblies for
your ECHO products are available only from an Authorized ECHO
Dealer. When you do need to buy parts always have the Model
Number, Type number and Serial Number of the unit with you. You can
find all three numbers on the engine housing. For future reference, write
them in the space provided below.

Model No. _____________ Type No. ____________SN. __________

--

SERVICE --

Service of this product during the warranty period must be performed
by an Authorized ECHO Service Dealer. For the name and address of
the Authorized ECHO Service Dealer nearest you, ask your retailer or
call: 1-800-432-ECHO. When presenting your unit for Warranty
service/repairs, proof of purchase is required.

ECHO CONSUMER PRODUCT SUPPORT

If you require assistance or have questions concerning the application,
operation or maintenance of this product you may call the ECHO
Consumer Product Support Department at 1-800-673-1558 from 8:00 am
to 5:00 pm (Central Standard Time) Monday through Friday. Before
calling, please know the model and serial number of your unit to help

your Consumer Product Support Representative.

WARRANTY CARD --

This card is our means of registering all original owners of ECHO
equipment. The card plus proof of purchase provides you the assur­ance that authorized warranty work will be done. It also provides a
direct link between you and ECHO if we find it necessary to contact
you.

DEALER?

Call

1-800-432-ECHO

1-800-432-3246

CONSUMER PRODUCT

SUPPORT

1-800-673-1558

8 - 5 Mon - Fri C.S.T.

ADDITIONAL OR REPLACEMENT MANUALS --

Safety Manuals are available, free of charge, from your ECHO dealer

or by contacting Echo Incorporated, 400 Oakwood Road, Lake Zurich,
IL 60047

ECHO Incorporated

400 Oakwood Road

Lake Zurich, IL 60047

Operator's and Parts Manuals are available for purchase from

your ECHO dealer or directly from ECHO. [See ordering instructions at
the end of this manual.]

Technical Publications Orders

ORDERING INSTRUCTIONS

To obtain a Parts Catalog or Operator's Manual send a check or money order for $2.00 per Parts Catalog or $1.50 per
Operator's Manual made payable to ECHO, INCORPORATED. State on a sheet of paper model number and serial number
of the ECHO unit you have, part number of the manual (if known), your name and address and mail to address above.

Available Parts Lists

SRM-2400/2410 TYPE 1E S/N 001001 & UP PART NUMBER 99922202882

ECHO, INCORPORATED

400 OAKWOOD R OAD

LAKE Z URICH, IL 60047