Echo SRM - 2110 User Manual

Grass T rimmer/Brush Cutter

Operator's Manual

MODELS, SRM - 2100, 2110

Serial Number 001001 & Up

MODELS, Type 1E SRM - 2100, 2110

Serial Number 001001 & Up

W ARNING

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.

X770000030

X7702270500

02/99

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.

W ARNING 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 ................................................. 4

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

- Fuel ............................................................................. 5

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

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

- Extended Operation/Extreme Conditions .................... 8

Description ......................................................................... 9

- Contents ..................................................................... 9

- Blade Terms and Definitions ...................................... 9

- Emission Control ...................................................... 10

Specifications.................................................................... 12

Assembly.......................................................................... 13

- Plastic Shield Installation .......................................... 13

- Nylon Head Installation ........................................... 13

- Blade Installation ...................................................... 14

- Throttle Linkage and Ignition Leads ......................... 16

- Front Handle Installation .......................................... 16

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

Pre-Operation ................................................................... 19

- Operation with Blades .............................................. 19

- Fuel ........................................................................... 21

- Equipment Check ..................................................... 22

- Determine Operation Area ....................................... 22

--

Operation.......................................................................... 23

- Starting Cold Engine .................................................. 23

- Starting Warm Engine ............................................... 24

- Stopping Engine ........................................................ 24

Maintenance ..................................................................... 25

- Skill Levels................................................................ 25

- Maintenance Intervals .............................................. 25

- Air Filter ................................................................... 26

- Fuel Filter ................................................................. 26

- Spark Plug................................................................. 27

- Cooling System Cleaning .......................................... 27

- Exhaust System ........................................................ 28

- Carburetor Adjustment Type 1E ............................ 29

- Carburetor Adjustment Type 1 ............................... 30

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

- Nylon Line Replacement........................................... 31

- Sharpening Metal Blades........................................... 33

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

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

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

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

- ECHO Ccnsumer Product Support .......................... 36

- Service ....................................................................... 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.

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MANUAL SAFETY SYMBOLS AND 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.

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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

(NYLON BLADE SHOWN)

FRONT

HANDLE

(LOOP SHOWN)

STOP SWITCH

DEBRIS SHIELD

(W/DECALS)

DRIVE SHAFT

(W/DECALS)

POWER HEAD

(W/DECALS)

THROTTLE TRIGGER

4

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 50 ft. (15M) 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

INTERNA TIONAL SYMBOLS

Symbol form/shape

Symbol

description/application

"WARNING, SEE

OPERATOR'S

MANUAL

Wear eyes, ears and

head protection

Emergency stop

Symbol form/shape

Symbol

description/application

Fuel and oil mixture

Finger Severing

Carburetor adjustment

- Low speed mixture

Symbol form/shape

Ignition

ON OFF

I

O

Symbol

description/application

Hot

Surface

Primer bulb

Ignition
ON/OFF

Symbol form/shape

Symbol

description/application

Carburetor adjustment

- High speed mixture

Carburetor adjustment

- Idle speed

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RASS TRIMMER/BRUSH CUTTER

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.

• 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.

• 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 on page 16 for proper adjustment.

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5

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.

3 M

(10 FT.) MINIMUM

6

PERSONAL CONDITION AND 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.

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
Trimmer/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.

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.

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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.

Operation

Use Proper Clothing & Equipment

- 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.

O

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15M

(50 ft.)

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7

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.

8

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.

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.

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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

9

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 mtg.)

- 1, Plastic Bag (for blade use only)

--1, metal shield

--1, shield bracket

--1, plastic bag

---1, 8mm x 55mm screw (handle mgt.)

---1, washer, circular

---2, cable clips

- 1, Plastic Bag

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

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

-- 4, 5mm nuts

-- 4, 5mm lockwashers

- - 1, harness clamp

2100

2100 1E

Ö

Ö
Ö
Ö
Ö
Ö
Ö
Ö
Ö
Ö

Ö
Ö
Ö
Ö
Ö

Ö
Ö

MODELS

2110

2110 1E

Ö

Ö
Ö
Ö
Ö
Ö
Ö
Ö
Ö
Ö

Ö
Ö
Ö
Ö
Ö
Ö

Ö
Ö
Ö
Ö
Ö
Ö
Ö
Ö
Ö
Ö
Ö
Ö
Ö
Ö
Ö
Ö

IMPORT ANT This spark ignition system complies with Canadian ICES-002.

BLADE

TERMS & DEFINITIONS --

Blade Convertible

Model (SRM-2100) 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 a Combo Kit, must be installed.

Dedicated Blade Capable

Model (SRM-2110) include both the "Blade Conversion Kit", and "U-Handle Kit".

10

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

SAFETY
VIDEO

2

26

8

9

19

IMPORTANT ENGINE INFORMATION
ENGINE FAMILY : TEH021UB24RA
DISPLACEMENT : 21.2cc
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

18

17

16

14

15

24

23

25

22

10

7

5

6

5

4

3

11

21

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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 handle is factory assembled to the Drive Shaft assembly (some models) but must be

re-positioned for proper cutting attitude and operator comfort.

7. DRIVE SHAFT ASSEMBLY - Includes the Rear (right hand) Handle assembly, Gear Housing assembly, Front,

(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 - Before starting and after filling the fuel tank, pump primer bulb 10 times or until a steady

stream of fresh fuel, without air, is visible through the "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. Move lever to "COLD START" to

close choke for cold starting. Move lever to "RUN" position to open choke.

21.HIP PAD - (SRM-2110) Used to protect hip/leg and clothing when using U-handle equipped unit.

22.SHOULDER HARNESS- Optional SRM-2100, Standard on SRM-2110. An adjustable strap that suspends the

unit from the operator. Using the strap reduces operator fatigue.

23.METAL BLADE SHIELD - (SRM-2110) Required when unit is equipped with blades. Do not operate unit without

shield.

24.BLADE - Circular blade for grass, weed or brush cutting applications. Harness, metal shield and U-handles are

required for blade operation.

25.U-HANDLE - (SRM-2110) Required for metal blade operation.

26.SAFETY VIDEO (Not included with unit) - 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.

M

ANUAL

11

12

SPECIFICATIONS

SRM-2100, 2110 1/1E

LEDOME1/10012E1/10112

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eroB ).ni862.1(mm2.23).ni862.1(mm2.23

ekortS ).ni40.1(mm0.62).ni40.1(mm0.62

tnemecalpsiD ).ni.uc92.1(cc2.12).ni.uc92.1(cc2.12

tsuahxE relffuMrotserrAkrapS

roterubraC remirp/wU1CledommgarhpaidamaZ

daehrettuc/w)yrd(thgieW).bl4.11(gk2.5).bl7.21(gk8.5

metsySnoitingI epytnoitingiegrahcsidroticapac,otengamleehwylF

gulPkrapS ).ni620.0(mm56.0paGA7-RMPBKGN

leuF )liOekorts-owTdnaenilosaG(dexiM

oitaRliO/leuF lioenignedeloocriaekorts-owt,ecnamrofrePhgiHOHCE1:05

enilosaG

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yticapaCknaTleuF

metsySretratSlioceR retratSlioceRcitamotuA

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*eldnaH pirG-thgiR,pooL-D-tnorF

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potmorfdeweivesiwkcolC-retnuoC

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ssenraHredluohSlanoitpOdradnatS

MPRdeepSeldI

MPR).T.O.W(deepSelttorhTnepOediW

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

0023-0082

00011-0059

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ASSEMBLY

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.

13

NOTE

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

1. (SRM-2110) Remove split pin, blade nut and lower plate from
PTO shaft.

1. (SRM-2100) Remove plastic sleeve from PTO shaft.

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

3. Place shield plate on shield, align holes and install three
(3) 5x15 mm screws.

NYLON LINE HEAD INSTALLATION

NOTE

For SRM-2100 follow steps 1, 5 & 6.
For SRM-2110 follow steps 1 - 6.

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

1. Align locking hole in upper plate (B) with notch in edge of gear
housing and insert head locking tool (A). Remove plastic sleeve
from PTO shaft. (SRM-2100)

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.

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

7. Remove locking tool (A).

A

B

14

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 29 - 30 and
"Specifications" page 12 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

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.

D

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-2100 should be retained for use with
nylon line head.

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 splined PTO shaft from turning. Tighten
nut and secure with Split Pin (L).

C

A

L

B

K

H

E

J

D

F

G

G

RASS TRIMMER/BRUSH CUTTER

Install Harness Clamp

NOTE

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

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

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

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 lubricate with
lithium based grease prior to re-assembly.

O

PERAT OR'S

M

ANUAL

15

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

front handle.

b. Remove front handle.

8. Install clamp.

- Slightly spread clamp and slide up shaft.

- Install single link using spacer, DO NOT tighten at this time.

9. Install gearbox, shield and front handle.

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

approximately 2" - 3" from the ground.

c. Tighten clamp screw.

2 ~ 3"

16

THROTTLE LINKAGE AND IGNITION LEADS

Tools Required: 8mm x 10mm open end wrench (all models), 3mm
Allen Wrench.

1. Close choke and remove air filter cover.

2. Loosen nut (A) and place threaded end of throttle linkage in
bracket slot. Finger tighten nut (A).

3. Place inner cable in slot of carburetor swivel (B) and tighten
nut (A).

4. Check throttle for freedom of movement and make sure it returns
to idle position. If the throttle linkage does not allow the carbure­tor throttle plate (C) to return to idle against idle screw (D),
loosen linkage nuts; turn throttle linkage nut (A) counter clock
wise until throttle plate (C) just rests against idle screw (D). Hold
linkage nut (A) from turning and tighten other linkage nut.

5. Connect ignition leads (C). SRM-2100 has one connector
terminal pair and one ring terminal which attaches under fan
terminal screw (C).

6. Install air filter and cover.

B C D

A

FRONT HANDLE INSTALLATION

Tools Required: Screwdriver.

Parts Required: Front Handle, Handle Support, Four (4) 5mm x

35mm screws with captivated washers, four (4) 5mm nuts.

1. Position front handle for comfortable operation and secure screws.

G

RASS TRIMMER/BRUSH CUTTER

U-HANDLE INST ALLATION

Tools Required: 8mm x 10mm Open End Wrench, Slotted Screw­driver, (3mm Hex Wrench SRM-2100 only.)

Parts Required: U-Handle Kit. (SRM-2100) P/N 35130454130

NOTE

On model SRM-2110 use Steps 1, 10, 11 and 13 - 17 only.

1. Close choke and remove air filter cover.

2. Disconnect ignition stop leads (C).

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

4. Loosen nut (A) and remove throttle linkage from bracket.

O

PERAT OR'S

M

ANUAL

17

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

6. Loosen two (2) rear handle screws (E) and pull rear handle (F)
from the drive shaft assembly.

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

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

9 . Install harness hook (included with Blade Conversion Kit) for blade

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

D

F

G

H

E

400 mm (15-3/4 in.)

ENGINE

END

220 mm

(8-21/32 in.)

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

J

18

11. Secure throttle linkage and leads to drive shaft with cable clips
supplied.

12. Install power head and align gear box, power head and U-handles.
Tighten all screws.

13. Place throttle linkage in slot in bracket with one nut (A) andwasher
on each side of bracket. Finger tighten both nuts (A).

14.Attach inner throttle cable to swivel (B). Check throttle for
freedom of movement and that wide open throttle / low idle
extremes are adjusted properly. If adjustment cannot be achieved
by adjusting nuts (A), consult with your Echo Dealer for correct
adjustment procedure.

15. Attach ignition leads (C).

16 .Install air filter and cover.

17 . Balance unit.

a. Put on harness and attach unit to harness.

b. Slide clamp (K) up or down drive shaft housing until unit

balances with cutting attachment approximately 2 - 3" from
ground.

c. Tighten harness clamp screw.

K

2 - 3 "

PRE - OPERA TION

G

RASS TRIMMER/BRUSH CUTTER

O

PERAT OR'S

M

ANUAL

19

OPERA TION

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 99922200410
(metal shield and shoulder harness).

Steel/Metal Blades Require "Blade Conversion Kit" PLUS a "U-Handle Kit." P/N 35130454130 or Combination
Blade Kit and "U-Handle Kit" P/N 99944200451.

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 where ever the nylon line head

is used. DO NOT use this blade for heavy weeds or brush!

20

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 69500120331 is designed for cutting brush
and woody growth up to 76 mm (3" in.) diameter.

Use Shoulder/Waist Harness P/N 99944200200 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.

During blade operation, the same fatigue reduction is achieved. Safety
to the operator is also enhanced by preventing 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.

G

RASS TRIMMER/BRUSH CUTTER

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 only are covered for two years,
regardless of two-stroke oil used, per the statement listed in the EPA
Phase I/California Emission Defect Warranty Explanation.)

Mixing - Follow directions on the oil container.

R + M

2

Handling Fuel

O

PERAT OR'S

M

ANUAL

21

W ARNING 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
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.

3 M

(10 FT.) MINIMUM

SM TWTF S

1234567

8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31

22

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. Tighten and/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.

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

• Check that front 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.

15M

(50 ft.)

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

G

RASS TRIMMER/BRUSH CUTTER

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

O

PERAT OR'S

M

ANUAL

23

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

D

4 . Lay the trimmer on a flat clear area. Firmly grasp rear handle grip

and fully depress throttle trigger to wide open position. Rapidly pull
recoil starter handle/rope (D) until engine fires (or maximum five [5]
pulls).

D

24

5 . After engine fires (or five [5] pulls) move choke lever to “Run”

position. Hold throttle trigger fully depressed and pull recoil starter
handle/rope (D) until engine starts and runs. Release throttle trigger
and allow unit to warm up 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.

D

STARTING WARM ENGINE

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

W ARNING 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 (B) 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 (C) until the engine fires.

NOTE

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

A

B

C

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

GRASS TRIMMER/BRUSH CUTTER

OPERATOR'S MANUAL

MAINTENANCE

Your ECHO unit is designed to provide many hours of trouble free service. Regular scheduled maintenance will help
your unit 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 task is not listed, 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 recommends that the unit be returned to your

ECHO dealer for service.

25

ECHO offers REPOWER

TM

Maintenance Kits and Parts to make your maintenance job easier. Just below each task

heading are listed the various part numbers required for that task. See your ECHO dealer for these parts.

MAINTENANCE INTERVALS

/TNENOPMOC

METSYS

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ECNANETNIAM

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LLIKS

LEVEL

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R/I

6

SHTNOM
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SRUOH

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cA.mumixameranwohsslavretniemiT

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.esufosruoh52yreve
.esufosruoh05yreve

26

AIR FILTER

Level 1.

Tools required: Cleaning Brush

Parts required: 90008 REPOWER 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: 203-254 mm (8"-10") length of wire with one end
bent into a hook, Clean rag, funnel, and an approved fuel container
Parts required: 90008 REPOWER AIR & FUEL FILTER KIT.

WARNING DANGER

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

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.

G

RASS TRIMMER/BRUSH CUTTER

SPARK PLUG

Level 2.

Tools required: Scrench (combination socket wrench and screw
driver supplied with unit), Feeler gauge (preferably a wire gauge), Soft
metal brush
Parts Required: Spark Plug NGK BPMR-7A

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.

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

O

PERAT OR'S

0.65 mm

(0.026 in.)

M

ANUAL

27

COOLING SYSTEMS CLEANING

Level 3.

Tools required: Cross-head screwdriver, 3 mm hex wrench, pointed
wood stick
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.

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

A

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

28

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: Cross-head screwdriver, soft metal brush, wooden
carbon scraper.
Parts Required: Screen P/N 14586240630, Gasket Lid P/N
14586642031

1. Remove engine cover (A). See “Cleaning Cooling System” pages
27 & 28 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.

6. Assemble components in reverse order

E

D

C

NOTE

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

B

G

RASS TRIMMER/BRUSH CUTTER

CARBURETOR ADJUSTMENT

Type 1E Emission Models

Level 2.

Tools required: Slotted Screwdriver w/2 mm blade width, 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. In addition, the carburetor is equipped with HI and LO
needle adjustment limiters that prevent settings outside acceptable
limits.

1. Before adjusting the carburetor, clean or replace the air filter and
spark arrester screen.

O

PERAT OR'S

A

M

ANUAL

B

29

2. Trimmer line must be extended to the cut-off knife.

3. Start engine and run for several minutes to reach operating
temperature.

4. Stop engine. Turn HI speed needle (A) CCW (counter clockwise)
to stop. Turn LO speed needle (B) midway between full CCW and
CW (clockwise) stops.

5. Idle Speed Adjustment.
Start engine and turn “idle” speed adjustment screw (C) CW until
the cutting attachment begins to turn, then turn the screw CCW
until cutting attachment stops turning. Turn screw CCW an
additional 1/4 turn.

5. Accelerate to full throttle for 2-3 seconds to clear excess fuel from
engine then return to idle. Accelerate to full throttle to check for
smooth transition from idle to full throttle. If engine hesitates,
turn LO needle (B) CCW an additional 1/8 turn and repeat
acceleration. Continue adjusting until smooth acceleration results.

6. Check HI speed RPM at W.O.T. (Wide Open Throttle). HI speed
RPM should be set to specifications found on page 12 "Specifica­tions" of this manual.

C

7. Check idle speed and reset if necessary. If a tachometer is avail­able, idle speed should be set to the specification found on page 12
"Specifications" of this manual.

W ARNING DANGER

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

30

CARBURETOR ADJUSTMENT

Type 1 Non Emission Models
Idle Speed Adjustment

NOTE

If carburetor has limiter caps follow "Carburetor Adjustment"
procedures for Type 1E models on previous page.

Turn "idle" speed adjustment screw (C) CW (clockwise) until cutting
attachment begins to turn, then turn screw out CCW (counter clock­wise) until attachment stops turning. Turn screw out, CCW an
additional 1/4 turn.

Basic Setting

1. Stop engine and turn both LO (B) and HI (A) needles in, CW until
they stop and are lightly seated.

IMPORTANT
DO NOT over tighten needles. Forcing them to tighten will

damage the carburetor.

2. Turn LO needle (B) out, CCW 1-1/4 turns. Turn HI needle (A) out
CCW 2-3/4 turns.

A

B

C

Fine Tuning

(Requires Accurate Tachometer ECHO P/N 99051130017)

1. Start engine and allow to warm to operating temperature (min.
2 - 3 minutes) varying engine speed from idle to full throttle.

2. Always begin fine tuning with LO needle.
a. Lean drop-off - With engine idling, turn LO (B) needle slowly

CW (in) to lean drop-off point. RPM will increase, then abruptly
drop-off. (1) Note this position.

b.Rich drop-off - With engine idling, slowly turn LO (B) needle

CCW (out) to rich drop-off point. RPM will increase then
gradually slow and drop-off. (2) Note this position.

c. Final setting - Set needle at mid point between lean/rich drop-off

points. (3)

d.Turn 1/8 turn CCW (out) making mixture slightly richer. (4)

3. High speed adjustment.
Adjust HI needle (A) with tachometer to achieve the specifications
found on page 12 "Specifications" of this manual.

4. Check idle speed and reset if necessary. Using a tachometer, idle
speed should be set to the specification found on page 12 "Specifi­cations" of this manual.

(2)

(3)

(4)

(1)

W ARNING DANGER

Cutting attachment must not rotate when unit is idling, otherwise
serious personal injury may result.

G

RASS TRIMMER/BRUSH CUTTER

LUBRICA TION

Level 1.

Tools required: 8 mm Open End Wrench, Cross Head 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.

O

PERAT OR'S

M

ANUAL

31

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 housing.

2. Pull flexible cable from the drive shaft housing, wipe clean and
recoat with a thin coating of [15 ml (1/2 oz.)] of high temperature
automotive grease.

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

4. Install the gear housing and shield assembly.

NYLON LINE REPLACEMENT

A

B

B

C

Level 1.

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

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

long.

32

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

A

D

E

B

C

D

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.

B

G

A

E

H

F

B

G

RASS TRIMMER/BRUSH CUTTER

SHARPENING METAL BLADES

Three styles of metal blades are approved for use on the ECHO Brush
Cutter. 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

O

PERAT OR'S

M

ANUAL

33

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

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

does not start

Cause

Remedy

Engine
Cranks

Engine
does not
crank

Engine
runs

Fuel at
carburetor

Fuel at
cylinder

Spark at
end of
plug wire

Spark at
plug

Dies or
Accelerates poorly

No fuel at
carburetor

No fuel at
cylinder

Muffler wet
with fuel

No spark at end
of plug wire

No spark at plug

Fuel strainer clogged
Fuel line clogged
Carburetor

Carburetor

Fuel mixture is too rich

Stop switch off
Electrical problem
Interlock switch

Spark gap incorrect
Covered with carbon
Fouled with fuel
Spark plug defective

Internal engine problem

Air filter dirty
Fuel filter dirty
Fuel vent plugged
Spark plug
Carburetor
Cooling system plugged
Exhaust port/spark
arrestor screen plugged

Clean
Clean
See your Echo dealer

See your Echo dealer

Open choke
Clean/replace air filter
Adjust carburetor

See your Echo dealer
Turn switch on
See your Echo dealer
See your Echo dealer

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

See your Echo dealer

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

G

RASS TRIMMER/BRUSH CUTTER

O

PERAT OR'S

M

ANUAL

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.

WARNIG DANGER

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

2. Place the stop switch button (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 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 starter 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 INFORMATION

PARTS

Genuine ECHO Parts and ECHO REPPWER 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 (3246). When presenting your unit for
Warranty service/repairs, proof of purchase is required.

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 Supports 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

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.]

ECHO Incorporated

400 Oakwood Road

Lake Zurich, IL 60047

Safety Video is available from your dealer. A $5.00 shipping charge

will be required.

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-2100/2110 TYPE 1E S/N 001001 & UP PART NUMBER 99922202674

ECHO, INCORPORATED

400 OAKWOOD ROAD

LAKE ZURICH, IL 60047