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.
X7702278400X770000780
02/03
Page 2
2
INTRODUCTION
Welcome to the ECHO family. This ECHO product was designed and manufactured to provide long life and on-the-job
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.
THEOPERATOR'SMANUAL
Read and understand this manual before operation. Keep it in a safe
place for future reference. Contains specifications and information for
operation, starting, stopping, maintenance, storage and assembly
specific to this product.
THESAFETYMANUAL
Read and understand this manual before operation. Keep it in a safe
place for future reference. Explains possible hazards involved with the
use of trimmer/brushcutters and the measures you should take to make
their use safer.
- Additional or Replacement Manuals ........................ 32
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.
Page 3
GRASS TRIMMER/BRUSH CUTTER
OPERATOR'S MANUAL
MANUAL SAFETY SYMBOLSAND 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.
This symbol accompanied by the words WARNING andDANGER calls attention to an act or condition that can
lead to serious personal injury to operator and bystanders.
IMPORTANT The enclosed message
provides information necessary for the
protection of the unit.
3
The circle with the slash symbol means whatever is
shown within the circle is prohibited.
SAFETY
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 - Spanish
ADVERTENCIA PELIGRO
89017740630
Esta unidad puede ser peligrosa y producir lesiones
personales graves si no se usa en forma adecuada. Para
reducir el riesgo de lesionarse, los operadores, los
ayudantes y los espectadores deben leer y comprender el
Manual Del Operador y los Manuales De Seguridad que se
entregan escritos en español.
NOTE This enclosed message provides
tips for use, care and maintenance of the
unit.
Debris Shield Decal
Metal Debris
Shield
P/N 89016841031
P/N 89022809560
Spanish Shaft Decal - English Translation
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, which are provided in Spanish.
Hot Surface Decal
P/N 89016006361
Page 4
4
Shaft Decal
W ARNING
• 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 15 m (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.
DANGER
(P/N 89016054130)
INTERNA TIONAL SYMBOLS
DESCRIPTION
"WARNING, SEE
OPERATOR'S
MANUAL
Wear eye, ear
and head
protection
Wear hand and
foot protection
Safety/Alert
SYMBOLSYMBOL
Keep bystanders and helpers
away 15 m (50 ft.).
DESCRIPTION
Hot
Surface
Finger Severing
DO NOT allow
flames or sparks
near fuel.
DO NOT smoke
near fuel.
SYMBOLDESCRIPTION
Emergency
Stop
Carburetor
Adjustment
- High speed
mixture
Carburetor
Adjustment
- Idle speed
Carburetor
Adjustment
- Low speed
mixture
Ignition
ON/
OFF
SYMBOL
DESCRIPTION
Fuel and oil
mixture
Primer
Bulb
Choke Control
"Run"
Position
(Choke Open)
Choke Control
"Cold Start"
Position
(Choke Closed)
Do not use
blades. String
line only
Page 5
SAFETY INSTRUCTIONS
GRASS TRIMMER/BRUSH CUTTER
OPERATOR'S MANUAL
5
PERSONAL
CONDITIONANDSAFETYEQUIPMENT
W ARNING DANGER
Trimmer/Brush Cutter users risk injury to themselves and others if the trimmer/brush cutter is used improperly
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.
EXTENDEDOPERATION/EXTREMECONDITIONS
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.
Page 6
6
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.
EQUIPMENT
W ARNING DANGER
Use only ECHO-approved attachments. Serious injury may result from the use of a non-approved attachment
combination. ECHO, INC. will not be responsible for the failure of cutting devices, attachments, or accessories which
have not been tested and approved by ECHO. Read and comply with all safety instructions listed in this manual and
safety manual.
• 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 for proper adjustment.
• Keep exhaust area clear of flammable debris. Avoid contact during
and immediately after operation.
Page 7
GRASS TRIMMER/BRUSH CUTTER
SAFEOPERATION
W ARNING DANGER
Do not operate this product indoors or in inadequately ventilated
areas. Engine exhaust contains poisonous emissions and can cause
serious injury or death.
Read the Manuals
• Provide all operators of this equipment with the Operator's Manual
and Safety Manual for instructions on safe operation.
Keep A Firm Grip
• Hold the front and rear handles using 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.
OPERATOR'S MANUAL
7
EMISSION CONTROL
EPA Phase 2
The emission control system for these engines is EM (Engine Modification).
ENGINE FAMILY: 3EHXS.0214EA DISPLACEMENT: 21.2 CC
EMISSION COMPLIANCE PERIOD : 300 HRS.
THIS ENGINE MEETS U.S. EPA PHASE II EMISSION REGULATIONS FOR SMALL NONROAD ENGINES. REFER TO
OWNER'S MANUAL FOR MAINTENANCE SPECIFICATIONS
AND ADJUSTMENTS.
An Emission Control Label is located on the engine. (This is an EXAMPLE ONLY, information on label varies by
engine FAMILY).
The 300 hour emission durability period is the time span selected by the manufacturer certifying the engine emissions
output meets applicable emissions regulations, provided that approved maintenance procedures are followed as listed
in the Maintenance Section of this manual.
IMPORTANT ENGINE INFORMATION
PRODUCT EMISSION DURABILITY
Page 8
8
DESCRIPTION
Your new Echo product has been factory pre-assembled for your convenience. Due to packaging restrictions, shield
installation and other final assembly may be necessary.
Check the contents carefully, and notify your retailer or ECHO Dealer immediately if any parts are missing or damaged.
Use the contents list below to check for missing parts.
PACKAGECONTENTS
____ 1 - Power Head
____ 1 - Drive Shaft Assembly w/Gear Housing
____ 1 - Nylon Trimmer Head
____ 1 - Plastic Debris Shield
____ 1 - Shield Plate
____ 3 - 5 mm x 16 mm screws (Shield Plate-Gear Case)
____ 1 - Metal Shield
____ 1 - Metal Shield Bracket
____ 3 - 5 mm x 15 mm screws (Shield-Gear Case)
____ 2 - 5 mm x 8 mm screws (Bracket-Shield)
____ 4 - 5 mm nuts (Bracket-Shield & Gear Case)
____ 4 - 5 mm lockwashers (Bracket-Shield & Gear Case)
____ 1 - 8 Tooth Weed/Grass Blade
____ 1 - Shoulder Harness With Hip Pad
____ 1 - U-Handle Assembly
____ 1 - 8 mm hex head bolt
____ 1 - 8 mm flat washer
___ 10 - 2 mm x 25 mm Cotter pins
____ 2 - Plastic cable clips
____ 1 - Combination Socket/Screwdriver Tool (Scrench)
____ 1 - Locking Tool
____ 1 - 3 mm ”L” hex wrench
____ 1 - Operator’s Manual
____ 1 - Safety Manual
____ 1 - Warranty Registration Card
____ 1 - Limited Warranty Statement
____ 1 - Safety Glasses
_____ 1 - Echo Power Blend
TM
2-stroke oil sample
Page 9
GRASS TRIMMER/BRUSH CUTTER
OPERATOR'S MANUAL
9
MODEL SRM-210U PARTS
24
12
22
21
15
23
16
17
20
19
18
14
13
9
10
8
11
7
4
5
6
3
2
1
Page 10
10
MODEL SRM-210U PART DESCRIPTIONS
1.POWER HEAD - Includes the Engine, Clutch, Fuel System, Ignition System, and Recoil Starter.
2.RIGHT HANDGRIP
3.THROTTLE TRIGGER LOCKOUT - This lever must be held during acceleration. Operation of the throttle trigger is
prevented unless throttle trigger lockout lever is engaged.
4.STOP SWITCH - "SLIDE SWITCH" mounted on top of the Throttle Trigger Housing. Move switch FORWARD to
RUN, BACK to STOP.
5.THROTTLE TRIGGER - Controls engine speed. Spring loaded to return to idle when released. During acceleration,
press trigger gradually for best operating technique.
6.U-HANDLE - Provides secure two-handed control of trimmer/brushcutter. Required for metal blade operation.
7.LEFT HANDGRIP
8.DRIVE SHAFT ASSEMBLY - Includes Gear Housing assembly, Blade attachment parts, Flexible Drive Cable and
Safety Decal.
9.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.
10. CUT-OFF KNIFE - Automatically trims line to the correct length (5 in.) after head is tapped on the ground while nylon
cutting attachment is turning. If trimmer is operated without a cut-off knife, the line will become too long, the engine
will overheat and engine damage may occur.
11. PLASTIC DEBRIS SHIELD ASSEMBLY - Deflects debris. MUST be installed on unit before Nylon Line Head 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.
12. BLADES - Circular steel blades for grass, weeds, or brush cutting applications. (Harness, metal shield, and U-handle
required for blade operation.)
13. METAL BLADE SHIELD - Required when unit is equipped with blades. Do not operate unit without shield.
14. SHOULDER HARNESS WITH HIP PAD - An adjustable shoulder strap that suspends the unit from the operator’s
shoulder. Using the strap reduces operator fatigue and enhances safety. Hip pad helps protect hip/leg and clothing
when using U-handle equipped units.
15. TOP GUARD - Protects operator's arm from the hot engine during normal operation.
and emission. The spark arrestor screen prevents hot, glowing particles of carbon from leaving the muffler. Keep
exhaust area clear of flammable debris.
17. FUEL TANK - Holds fuel and contains the fuel filter.
18. FUEL TANK CAP - Covers and seals fuel tank opening.
19. RECOIL STARTER HANDLE - Starts engine. Pull 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.
20. PRIMER BULB - Primes carburetor for quick starting. Pumping primer bulb before starting engine draws fresh fuel
from the fuel tank, priming the carburetor for starting. Pump primer bulb until fuel is visible and flows freely in the
clear fuel tank return line. Pump bulb an additional 4 or 5 times.
21. CHOKE - Adjusts Fuel/Air ratio for starting or running engine. The choke control is located at the top of the air filter
case. Move choke lever to "Cold Start" (
position to open choke.
22. AIR CLEANER - Filters out dirt and debris in air. Contains replaceable filter element.
23. SPARK PLUG - Provides spark to ignite fuel mixture.
24. SAFETY VIDEO - (Not included with unit) P/N 99922202540 English version and P/N 99922203508 Spanish version
are 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.
) to close choke for cold starting. Move choke lever to "Run" ()
Page 11
GRASS TRIMMER/BRUSH CUTTER
OPERATOR'S MANUAL
SPECIFICATIONS
MODEL --------------------------------------------------------------- SRM-210U
Length----------------------------------------------------------------- 1770 mm (69.7 in.)
Width------------------------------------------------------------------ 700 mm (27.68 in.)
Height ----------------------------------------------------------------- 455 mm (17.9 in.)
Weight (dry) w/Cutter Head ---------------------------------------- 5.48 kg (12.0 lb.)
Engine Type ---------------------------------------------------------- Air cooled, two-stroke, single cylinder gasoline engine
Bore-------------------------------------------------------------------- 32.2 mm (1.27 in.)
Stroke------------------------------------------------------------------ 26.0 mm (1.02 in.)
Displacement --------------------------------------------------------- 21.2 cc (1.29 cu. in.)
Exhaust ---------------------------------------------------------------- Spark Arrestor Muffler
Carburetor ------------------------------------------------------------ Zama diaphragm model RB w/purge pump
Ignition System ------------------------------------------------------ Flywheel magneto, capacitor discharge ignition type
Spark Plug ------------------------------------------------------------ NGK BPM-8Y (Gap 0.65 mm (0.026 in.)
Fuel -------------------------------------------------------------------- Mixed (Gasoline and Two-stroke Oil)
Fuel/Oil Ratio --------------------------------------------------------- 50:1 two-stroke air cooled engine oil
Gasoline --------------------------------------------------------------- 89 Octane unleaded. DO NOT use fuel containing methyl
alcohol, more than 10% ethyl alcohol or 15% MTBE.
Oil ---------------------------------------------------------------------- Power Blend TM Premium Universal 2-Stroke Oil
Fuel Tank Capacity -------------------------------------------------- 0.45 lit. (15.2 US fl. oz.)
Starter System -------------------------------------------------------- Automatic Rewind Starter
Clutch ----------------------------------------------------------------- Centrifugal Type
Vibration Isolated System------------------------------------------- Rubber cushion on engine mount (heavy duty). Rubber
grip on front handle.
Operating Rod -------------------------------------------------------- 25.0 mm aluminum Tube
Drive Shaft ------------------------------------------------------------ 6.35 mm (1/4 in.) flexible shaft
Gear Case Ratio ------------------------------------------------------ 1.4:1 Reduction
Rotating Direction --------------------------------------------------- Counter Clockwise; viewed from top
Cutter Head ----------------------------------------------------------- Semi-Auto Nylon line head (2-line) with .095 Crossfire™
Line capacity 6 m (20 ft.), 8 tooth weed and grass blade
Handle* --------------------------------------------------------------- U-Handle
Shoulder Harness w/hip pad --------------------------------------- Standard
Idle Speed------------------------------------------------------------- 2400 - 3200 RPM
Wide Open Throttle Speed (W.O.T.) with Nylon Line Head--- 8000 - 10,000 RPM
Wide Open Throttle Speed (W.O.T.) with Blade ---------------- 9000 - 11,500 RPM
11
* Install and use U-Handle when operating any model with blade.
Page 12
12
ASSEMBLY
PLASTIC
Tools Required: Screwdriver, Locking Tool
Parts Required: Plastic Debris Shield, Shield Plate,
SHIELDINSTALLATION
three (3) 5 x 16 mm screws.
W ARNING DANGER
The plastic shield is for use with the Nylon Line Head only. Install
Metal Shield when using plastic or metal blades, or serious injury
may result.
1 .Align hole in upper plate (D) with notch in gear housing (G), and
insert locking tool to prevent splined shaft from turning. Arrow on
gear housing flange points to notch location.
4 .Align plastic debris shield (F) with the drive shaft, and install on
the bottom of the gear housing flange.
G
D
C
B
A
F
5 .Place shield plate (E) on shield, align holes and install three (3)
screws.
6 .Replace upper plate (D) on PTO shaft.
NYLONHEADINSTALLATION
Tools Required: Locking Tool, 17x19 mm Scrench
Parts Required: Nylon Line Head.
1 .Make sure plastic debris shield (F) is properly aligned, and upper
plate (D) is installed on splined PTO shaft.
2 .Align hole in upper plate (D) with notch in gear housing (G), and
insert locking tool (H) to prevent splined shaft from turning.
3 .Thread line head (I) onto PTO shaft by turning it counter-clock-
wise until head is tight against upper plate (D).
4 .Remove locking tool.
E
G
F
D
D
H
I
Page 13
GRASS TRIMMER/BRUSH CUTTER
OPERATOR'S MANUAL
BLADEINSTALLATION
W ARNING DANGER
You must install the U-Handle and all Blade Conversion parts shown in the following instructions before operating this unit with metal blades, otherwise serious injury may result.
NOTE
Model SRM-210U includes U-Handle, 8-tooth blade, and necessary blade conversion parts. Blades must be selected for type of
cutting being performed. See page 16, "Blade Selection."
Install Metal Shield
Tools Required: 8 x 10 mm Open-end Wrench, Screwdriver, Scrench,
Locking Tool
Parts Required: Metal Shield, Shield Bracket,
3 - 5 x 15 mm screws w/captivated flat and lockwasher, (metal shield to gear housing).
2 - 5 x 8 mm screws, 2 - 5 mm nuts, 2 - 5 mm lockwashers, (bracket to shield).
2 - 5 mm nuts, 2 - 5 mm lockwashers
(bracket to gear housing)
13
G
1 .If installed, remove nylon line head, upper plate and plastic shield,
and set upper plate aside for use with blade installation. Retain
plastic shield, shield plate, and plastic shield hardware for conversion back to nylon line operation.
2 .Align hole in upper plate (D) with notch in gear housing (G), and
insert locking tool to prevent splined shaft from turning. Arrow on
gear housing flange points to notch location.
plate (D) from PTO shaft. Turn blade nut clockwise to remove.
4 .Remove locking tool.
5 .Loosely attach bracket (J) to shield (K) and attach shield to bottom
of gear housing (G) with hardware provided.
6 .Tighten all shield hardware.
D
C
J
K
B
A
G
Page 14
14
Install Blade
Tools Required: Locking Tool, Scrench.
Parts Required: Upper Plate w/ 20 mm pilot, Lower Plate, 10 mm Nut w/
L.H. threads, 2 x 25 mm Cotter Pin, Blade.
1 .Install upper plate (D) on splined PTO shaft, pilot side down. Blade
installation requires Upper Plate (D) with 20 mm pilot.
2 .Install Blade (L) on upper plate pilot. Blades must be installed so
that rotation arrow on blade matches rotation of unit: teeth toward
direction of rotation (See debris shield decal). Secure blade with
Lower Plate (C), and 10 mm L.H. nut (B). Turn nut counter-clockwise
on PTO shaft to tighten.
3.Align hole in upper plate with notch in gear housing, and insert
Locking Tool (H) to prevent splined shaft from turning. Arrow on
gear housing points to notch. Tighten 10 mm nut securely.
4 .Insert Split Pin (A) in hole in PTO shaft, and bend pin legs around
shaft counterclockwise to retain 10 mm nut.
IMPORTANT
Never reuse a cotter pin - install a new cotter pin each time a blade is
installed or replaced.
5 .Tri-Cut Blade (M) is installed with Glide Cup (N).
6 .Remove locking tool.
D
HM
N
D
2020
20
2020
L
B
L
C
B
A
H
C
A
U-HANDLEINSTALLATION
Tools Required: Scrench, 3 and 4 mm Hex Wrench, Pliers
Parts Required: U-Handle, Clamp w/screws, 8 mm x 55 mm hex bolt,
8 mm flat washer
1 .Install upper U-Handle and bracket on lower bracket with one (1)
8mm x 55mm bolt (A) and (1) large circular washer. Do not tighten
bolt securely until final adjustments are completed.
2 .Loosen upper (2) U-handle clamp screws (B), and position U-
handle as shown.
3 .Lightly tighten 8mm bolt (A) and clamp screws (B) to hold U-handle
in position until final adjustments are completed.
4 .Route throttle linkage and ignition lead assembly along shaft and
clip as shown.
A
B
Page 15
GRASS TRIMMER/BRUSH CUTTER
THROTTLELINKAGEANDIGNITIONLEADS
1 .Place throttle linkage cable (C) through adjustment fixture (D) and
install wire end into large carburetor throttle swivel hole (E). Check
throttle for freedom of movement and that wide open throttle / low
idle extremes are adjusted properly. The throttle linkage can be
adjusted by turning the adjustment fixture (D). Consult with your
Echo Dealer for correct adjustment procedure.
OPERATOR'S MANUAL
15
2 .Connect ignition leads (F) and one ring terminal (G) which attaches
under fan housing screw.
3 .Install throttle linkage into bracket clamp (H) and pinch snug with
pliers. Bend bracket up and flush against drive shaft.
D
C
G
E
F
BALANCEANDADJUSTUNIT
1.Loosen harness clamp screw.
2.Put on harness and attach unit to harness.
3 .Slide harness clamp up (I) or down until unit balances with head
approximately 50-75 mm (2 -3 in.) from the ground.
4 .Tighten harness clamp screw.
5 .Loosen upper U-Handle clamp screws (J), and position U-Handle
for comfortable operation.
6 .Tighten U-Handle clamp screws and 8 mm clamp bolt securely.
H
J
I
Page 16
16
BLADESELECTION
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!
8 Tooth Weed/Grass Blade is designed for grass, garden debris and
thick weeds. DO NOT use this blade for brush or heavy woody growth,
19 mm (3/4 in.) diameter or larger.
SRM-210Series P/N 69600120331
80 Tooth Brush Blade (P/N 69500120331) is designed for cutting brush
and woody growth up to 64 mm (2-1/2 in.) diameter.
22 Tooth Clearing Blade (99944200130) is designed for dense thickets
and saplings up to 64 mm (2-1/2 in.) diameter.
Page 17
GRASS TRIMMER/BRUSH CUTTER
Shoulder/Waist Harness (P/N 30100052131) Use of the Shoulder/Waist
Harness is required for blade operation, and is recommended for ALL
Trimmer/Brush Cutter use.
The Shoulder/Waist Harness suspends the trimmer from the operator's
shoulder, and reduces operator fatigue during nylon line trimming or
cutting with a blade.
Operator safety is also enhanced by restricting trimmer movement and
preventing blade or line contact with the operator's hands and feet
during operation.
NOTE
In case of Emergency, the trimmer/brushcutter can be released from
the harness by pulling up on the quick-release collar.
OPERATOR'S MANUAL
17
Page 18
18
PRE-OPERATION
FUEL
Fuel Requirements
Gasoline - Use 89 Octane [R + M/2] (mid grade or higher) gasoline
known to be good quality. Gasoline may contain up to 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 (ISO/CD
13738) and J.A.S.O. FC Standards must be used. Echo brand premium
Power Blend TM Universal 2-Stroke Oil meets these standards. Engine
problems due to inadequate lubrication caused by failure to use an ISOL-EGD and J.A.S.O. FC certified oil, such as Echo premium Power Blend
TM, 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 Emission Defect Warranty Explanation.)
IMPORTANT
Echo premium Power Blend TM Universal 2-Stroke Oil may be mixed
at 50:1 ratio for application in all Echo engines sold in the past
regardless of ratio specified in those manuals.
Mixing Instructions
1 .Fill an approved fuel container with half of the required amount of
gasoline.
2 .Add the proper amount of 2-stroke oil to gasoline.
3 .Close container and shake to mix oil with gasoline.
4 .Add remaining gasoline and remix.
5 .Install fuel container cap and wipe any spilled fuel from container
and surrounding area.
IMPORTANT
Spilled fuel is a leading cause of
hydrocarbon emissions. Some states
may require the use of automatic fuel
shut-off containers to reduce fuel
spillage. Contact your ECHO dealer for
ordering information.
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.
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.
Handling Fuel
W ARNING
Fuel is VERY flammable. Use extreme care when mixing, storing or
handling, otherwise 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.
DANGER
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.
Page 19
OPERATION
GRASS TRIMMER/BRUSH CUTTER
OPERATOR'S MANUAL
19
STARTING
COLDENGINE
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.
NOTE
Refer to Grass Trimmer/Brush Cutter Safety Manual for proper and
safe techniques.
1.Stop Switch
Move stop switch button (A) forward, away from the STOP
position.
2.Choke Lever
Move choke lever (B) to "Cold Start" () Position.
3.Primer Bulb
Pump primer bulb (C) until fuel is visible and flows freely in the
clear fuel tank return line. Pump bulb an additional 4 or 5 times.
A
B
NOTE
Lightly place knee on drive shaft to stabilize unit during starting. Do
not apply excessive downward force or damage to unit can occur.
4.Recoil Starter
Lay the unit on a flat, clear area. Firmly grasp right hand grip and
throttle trigger lockout with left hand, and fully depress throttle
trigger to wide open position. Rapidly pull the recoil starter handle/
rope (D) until engine fires (or maximum 5 pulls).
5.Choke
After engine fires (or 5 pulls) , move choke lever back to “Run”
() position. Hold throttle trigger and throttle trigger lockout
fully depressed, and pull recoil starter starter handle/rope 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 5 pulls,
repeat instructions 4 and 5.
6.Throttle Trigger
After engine warm-up, gradually depress throttle trigger to increase
engine RPM to operating speed.
C
D
Page 20
20
STARTINGWARMENGINE
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
Move stop switch button (A) away from the STOP position.
2.Recoil Starter
Lay the unit on a flat, clear area and pull the recoil starter handle
(D) until the engine fires.
A
NOTE
If engine does not start after 5 pulls, use Cold Start Procedure.
STOPPINGENGINE
1.Release Throttle.
Allow engine to return to idle before shutting off engine.
2.Stop Switch.
Move stop switch button backward to STOP position.
W ARNING DANGER
If engine does not stop when stop switch is moved to "STOP"
position, move choke lever to closed "Cold Start" position to stall
engine. Have your ECHO dealer repair stop switch before using
trimmer again.
D
A
Page 21
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.
SKILLLEVELS
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.
21
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.
1 .Remove spark plug and check for wear or fouling.
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
23
4 .Install spark plug and tighten to 145-155 kg/cm (125-135 in. lb.).
COOLINGSYSTEMSCLEANING
Level 2.
Tools required: Cross Head Screwdriver, 4 mm Hex Wrench, Pointed
Wood Stick, 25-50 mm (1 -2 in.) medium bristle paint
brush.
Parts Required: No parts are required if care is used during cleaning.
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 mm
(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 .Disconnect spark plug lead from spark plug.
2 .Remove (1) screw from top guard, and remove guard.
3 .Remove (3) screws from engine cover, and remove cover.
Page 24
24
4 .Use the wooden stick or brush to remove dirt from the cylinder fins.
cover and deflector shield tabs (A) into slots in engine cover.
6 .Secure engine cover with three (3) screws.
7 .Install top guard, and secure with one (1) screw.
8.Connect spark plug lead to spark plug.
EXHAUSTSYSTEM
Spark Arrestor Screen
Level 2.
A
Tools Required: Cross Head Screwdriver, Soft metal brush, Wooden
carbon scraper, 3 and 4 mm Hex Wrench
Parts Required: Screen P/N 14586240630
Gasket P/N 14586642031
1 .Disconnect spark plug lead from spark plug.
2 .Remove (1) screw from top guard, and remove guard.
3 .Remove (3) screws from engine cover, and remove cover.
4 .Remove screen holder (A), gasket (B) and screen (C) from muffler
body.
5 .Clean carbon deposits from muffler components.
6 .Replace screen if it is cracked, plugged or has holes burned
through.
A
B
C
7 .Reassemble in reverse order of removal. Make sure screen is
positioned properly before tightening screws.
Page 25
GRASS TRIMMER/BRUSH CUTTER
CARBURETORADJUSTMENT
NOTE
New engines must be operated for a minimum of two tanks of fuel
before carburetor adjustments can be made. During the break-in
period your engine performance will increase and exhaust emissions
will stabilize. Idle speed can be adjusted as required.
High Altitude Adjustment
High altitude adjustment is not required for proper operation of this
engine.
Emissions Adjustments
Every unit is run at the factory and the carburetor is set in compliance
with applicable emission regulations. This carburetor does not have
acceleration and high speed adjustment needles.
Idle Speed Adjustment
Idle speed adjustment may be required periodically to comply with
specifications for this unit. See page 11, "Specifications" for correct idle
speed.
until it stops. DO NOT push in on spool when turning.
9 .Pull both lines out and trim to cut-off knife length.
SHARPENINGMET ALBLADES
B
A
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.
Tool 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.
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.
Page 30
30
STORAGE
W ARNING DANGER
During operation the muffler or catalytic muffler and surrounding cover become hot. Always keep exhaust area clear
of flammable debris during transportation or when storing, otherwise serious property damage or personal injury
may result.
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.
W ARNING DANGER
Do not store in enclosure where fuel fumes may accumulate or reach an open flame or spark.
2.Place the stop switch in the "STOP" position.
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.) 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).
Page 31
GRASS TRIMMER/BRUSH CUTTER
OPERATOR'S MANUAL
NOTES
31
Page 32
SERVICING INFORMATION
P ARTS
Genuine ECHO Parts and ECHO REPOWER™ 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 and Serial Number of the unit with you. You can find this
information on the engine housing. For future reference, write them in
the space provided below.
Model No. ________________ S.N._____________________
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). Dealer information is also available on our
Web Site. When presenting your unit for Warranty service/repairs,
proof of purchase is required.
ECHOCONSUMERPRODUCTSUPPORT
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 8:30 am
to 4:30 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.
DEALER?
CALL
1-800-432-ECHO
OR
www.echo-usa.com
CONSUMER PRODUCT
SUPPORT
1-800-673-1558
8:30 - 4:30 MON - FRI C.S.T.
WARRANTYREGISTRATION
You may register your Echo equipment using the warranty registration
card or register on-line at www.echo-usa.com. Registering provides a
direct link between you and ECHO if we find it necessary to contact
you.
ADDITIONALORREPLACEMENTMANUALS
Safety Manuals in English/Spanish or English/French are available free of charge from your ECHO dealer, or online at
www.echo-usa.com.
Operator's and Parts Manuals are available by:
• Downloading free from www.echo-usa.com
• Purchasing from your Echo Dealer.
• Sending 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 the 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 below.
Safety Videos are available from your Echo dealer. A $5.00 shipping charge is required for each video.
Available Parts Catalog Parts Lists
SRM-210USerial Number 05001001 - 05999999Part Number 99922203252
ECHO, INCORPORATED
400 OAKWOOD ROAD
LAKE ZURICH, IL 60047-1564
www.echo-usa.com
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