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.
Read and understand all provided literature.
Literature contains specifications and
information for safety, operation,
maintenance, storage and assembly specific
to this product. Scan QR codes for more
information.
For additional literature, including safety manuals where applicable, or
questions regarding terms used in this manual, visit:
https://www.echo-usa.com/manuals
OR
https://www.shindaiwa-usa.com/manuals
SERVICING INFORMATION
Parts/Serial Number
Genuine ECHO 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. For future reference write
them in the space provided below.
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 www.echo-usa.com. When presenting your unit for Warranty service/
repairs, proof of purchase is required.
ECHO Consumer Product Support
If you require assistance or have questions concerning the application,
operation, or maintenance of this product, 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.
Product Registration
Register your ECHO equipment on-line at www.echo-usa.com or by filling
out the product registration sheet included in this manual. Registering your
product confirms warranty coverage and provides a direct link to ECHO if
we find it necessary to contact you.
Additional Literature
In addition to finding information online, information is available from your
Authorized ECHO Service Dealer, or by contacting ECHO Inc., 400
Oakwood Road, Lake Zurich, IL 60047 (800-673-1558).
Safety Videos are available from your Authorized ECHO Service Dealer. A
$5.00 shipping charge is required for each video.
Throughout this manual and on the product itself, you will find safety alerts
and helpful, informational messages preceded by symbols or key words.
The following is an explanation of those symbols and key words and what
they mean to you.
The safety alert symbol accompanied by the word “DANGER”
calls attention to an act or condition which WILL lead to serious
personal injury or death if not avoided.
The safety alert symbol accompanied by the word “WARNING”
calls attention to an act or condition which CAN lead to serious
personal injury or death if not avoided.
The safety alert symbol accompanied by the word “CAUTION”
calls attention to an act or condition which may lead to minor or
moderate personal injury if not avoided.
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.
CIRCLE AND SLASH SYMBOL
This symbol means the specific action shown is prohibited.
Ignoring these prohibitions can result in serious or fatal injury.
Cancer and Reproductive Harm
www.P65Warnings.ca.gov
The muffler or catalytic muffler and surrounding cover
may become extremely hot. Always keep clear of
exhaust and muffler area, otherwise serious personal
injury may occur.
Users of this product risk injury to themselves and others if the
unit is used improperly and/or safety precautions are not
followed. Proper clothing and safety gear must be worn when
operating unit.
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
◆ Eye protection that meets ANSI Z87.1 or CE requirements
must be worn whenever you operate the unit.
◆ For additional safety, a full-face shield may be worn over
safety glasses or goggles to provide protection from sharp
branches or flying debris.
Wear sturdy, no-slip, rubber work gloves to improve your grip on the
handles. Gloves also provide protection against cuts and scratches, cold
environments, and reduce the transmission of machine vibration to your
hands.
Hearing/Ear Protection
ECHO recommends wearing personal protection whenever unit is used.
Breathing Protection
Operators who are sensitive to dust or other common airborne allergens
may need to wear a dust mask to prevent inhaling these materials while
operating unit. Dust masks can provide protection against dust, plant debris,
and other plant matter such as pollen. Make sure the mask does not impair
your vision, and replace the mask as needed to prevent air restrictions.
Proper Clothing
Wear snug-fitting, durable clothing:
• Pants should have long legs, shirts should have long sleeves.
• DO NOT WEAR SHORTS.
• DO NOT WEAR TIES, SCARVES, JEWELRY, or clothing with loose or
hanging items that could become entangled in moving parts or
surrounding growth.
• Keep clothing buttoned or zipped, and keep shirt tails tucked in.
Wear sturdy work shoes with nonskid rubber soles:
• DO NOT WEAR OPEN TOED SHOES.
• DO NOT OPERATE UNIT BAREFOOTED.
Keep long hair away from engine and air intake. Retain hair with cap or net.
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.
The components of this machine generate an electromagnetic
field during operation, which may interfere with some
pacemakers. To reduce the risk of serious or fatal injury,
persons with pacemakers should consult with their physician
and the pacemaker manufacturer before operating this
machine. In the absence of such information, ECHO does not
recommend the use of this machine by anyone who has a
pacemaker.
Extended Operation / Extreme Conditions
Prolonged exposure to cold and/or vibration may result in
injury. Read and follow all safety and operation instructions to
minimize risk of injury. Failure to follow instructions may result
in painful wrist/hand/arm injuries.
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 unit 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.
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.
All over head electrical conductors and communications wires
can have electricity flow with high voltages. This unit is not
insulated against electrical current. Never touch wires directly
or indirectly, otherwise serious injury or death may result.
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 users of this equipment with the Operator’s Manual for
instructions on Safe Operation.
Clear the Work Area
• Spectators and fellow workers must be warned, and children and animals
prevented from coming nearer than 15 m (50 ft.) while the unit is in use.
Keep a Firm Grip
• Always hold throttle handle and support handle with thumbs and fingers
tightly 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 overreach.
Avoid Hot Surfaces
• During operation, the drive shaft housing and
attachment bearing housing may become very hot,
too hot to touch. Avoid contact during and
immediately after operation.
Use only ECHO 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 guards and shields for damage and to ensure that
they are securely in place. Replace if damaged or missing.
◆ Check that the attachment is firmly attached and in safe
operating condition.
◆ Check that handle and harness (if included) are adjusted
for safe, comfortable operation. See Assembly Section for
proper adjustment.
Moving parts can amputate fingers or cause severe injuries.
Keep hands, clothing and loose objects away from all openings.
◆ ALWAYS stop engine, disconnect spark plug, and make
sure all moving parts have come to a complete stop before
removing obstructions, clearing debris, or servicing unit.
◆ DO NOT start or operate unit unless all guards and
protective covers are properly assembled to unit.
◆ NEVER reach into any opening while the engine is running.
Moving parts may not be visible through openings.
Periodically check fuel system (fuel lines, vent, grommet, fuel
tank, and fuel cap) for leaks especially if the unit is dropped. If
damage or leaks are found, do not use unit, otherwise serious
personal injury or property damage may occur. Have unit
repaired by an authorized servicing dealer before using.
The emission control system for
the engine is EM (engine
modification) and, if the second to
last character of the Engine Family
on the Emission Control
Information label (sample below) is
“B”, “C”, “K”, or “T”, the emission
control system is EM and TWC (3way catalyst). The fuel tank/fuel
line emission control system is EVAP (evaporative emissions). Evaporative
emissions for California models are only applicable to fuel tanks.
An Emission Control Label is
located on the engine. (This is an
EXAMPLE ONLY, information on
label varies by engine FAMILY).
The 50 or 300 hour emission compliance 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.
Locate the safety decal(s) on your unit. Make sure the decal(s) is legible and
that you understand and follow the instructions on it. If a decal cannot be
read, a new one can be ordered from your ECHO dealer. Safety label is for
example only. Your label my appear slightly different.
The ECHO product you purchased has been factory pre-assembled for your
convenience. Due to packaging restrictions, some 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.
1Power Head with Upper Drive Shaft Assembly
1Lower Drive Shaft Trimmer Attachment*
1Operator's Manual
1Warranty Statement
1Storage Hook Assembly*
*Included with PAS-225SB only
ASSEMBLY
Support Handle Installation
Note: Label shows minimum
spacing for support
handle location.
1.If necessary, position support
handle for comfortable
operation and securely tighten
Moving parts can amputate fingers or cause severe injuries.
Keep hands, clothing and loose objects away from all openings.
Always stop engine, disconnect spark plug, and make sure all
moving parts have come to a complete stop before removing
obstructions, clearing debris, or servicing unit.
Engine exhaust IS HOT, and contains Carbon Monoxide (CO), a
poison gas. Breathing CO can cause unconsciousness, serious
injury, or death. Exhaust can cause serious burns. ALWAYS
position unit so that exhaust is directed away from your face
and body.
Operation of this equipment may create sparks that can start
fires around dry vegetation. This unit is equipped with a spark
arrestor to prevent discharge of hot particles from the engine.
Metal cutters can also create sparks if the cutter strikes rocks,
metal, or other hard objects. Contact local fire authorities for
laws or regulations regarding fire prevention requirements.
Fuel
Diesel fuels and alternative fuels, such as E-15 (15% ethanol),
E -85 (85% ethanol) or any fuels not meeting ECHO
requirements are NOT approved for use in ECHO 2-stroke
gasoline engines. Use of diesel or alternative fuels may cause
performance problems, loss of power, overheating, fuel vapor
lock, and unintended machine operation, including, but not
limited to, improper clutch engagement. Diesel or alternative
fuels may also cause premature deterioration of fuel lines,
gaskets, carburetors and other engine components.
Gasoline - Use 89 Octane [R+M/2] (mid grade or higher) gasoline known to
be good quality. Gasoline may contain up to 10% Ethanol (grain alcohol) or
15% MTBE (methyl tertiary-butyl ether). Gasoline containing methanol
(wood alcohol) is NOT approved. Use of ECHO branded fuel is
recommended to extend engine life in all air-cooled 2-stroke and 2/4-stroke
hybrid engines.
Two Stroke Oil - A two-stroke engine oil, such as ECHO branded 2-stroke
oils, meeting ISO-L-EGD (ISO/CD 13738) and J.A.S.O. FD Standards must
be used. ECHO branded 2-stroke oils meet these standards. Engine
problems due to inadequate lubrication caused by failure to use an ISO-LEGD (ISO/CD 13738) and J.A.S.O. M345-FD certified oil will void the twostroke engine warranty.
2-Stroke engine oil contains petroleum distillates and other
additives that may be harmful if swallowed. Heated oil can
release vapors that can cause flash fire, or ignite with explosive
force. Read and follow the oil manufacturer’s instructions, and
observe all safety warnings and precautions for handling
flammable liquids. For more detailed safety and first aid
information, visit www.echo-usa.com for a copy of the Material
Safety Data Sheet.
◆ KEEP OUT OF REACH OF CHILDREN.
◆ If swallowed, do not induce vomiting. CALL PHYSICIAN OR
A POISON CONTROL CENTER IMMEDIATELY.
◆ WEAR SAFETY GLASSES when mixing or handling.
◆ AVOID repeated or prolonged skin contact
◆ AVOID inhaling oil mists or vapors.
ECHO branded 2-stroke oils may be mixed at 50:1 ratio for
application in all ECHO engines sold in the past regardless of ratio
specified in those manuals.
Handling Fuel
Fuel is VERY flammable. Use extreme care when mixing, storing
or handling, or serious personal injury may result.
◆ Use an approved fuel container. Mark fuel containers as
containing 2-stroke mixture fuel.
◆ 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 or RUNNING!
◆ DO NOT fill fuel tanks indoors. ALWAYS fill fuel tanks
outdoors over bare ground.
◆ DO NOT overfill fuel tank. Wipe up spills immediately.
◆ Securely tighten fuel tank cap and close fuel container
after refueling.
◆ Inspect for fuel leakage. If fuel leakage is found, do not
start or operate unit until leakage is repaired.
◆ Move at least 3 m (10 ft.) from refueling location before
starting the engine.
Gasoline vapor is heavier than air, and can travel along the
ground to nearby sources of ignition such as electrical motors,
pilot lights, and hot or running engines. Vapors ignited by an
ignition source can flash back to the fuel container, resulting in
an explosion, fire, serious or fatal injuries, and extensive
property damage.
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, close
fuel container, and remix.
Spilled fuel is a leading cause of hydrocarbon emissions. Some
states may require the use of automatic fuel shut-off containers to
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,
airtight container. Store in a well-ventilated, unoccupied building, away from
sparks and flames.
• Empty the fuel tank prior to storing the unit. Return unused fuel to an
approved fuel storage container.
Stored fuel ages. Do not mix more fuel than you expect to use in 30
days, 90 days when a fuel stabilizer is added.
Stored two-stroke fuel may separate. ALWAYS shake fuel container
thoroughly before each use.
Used oil and gasoline, and soiled towels are hazardous waste
materials. Disposal laws vary by locality.
Operation With Blades
Metal blades are very sharp and can cause severe injuries, even
if engine is off and blades are not moving. Avoid contact with
blades. Wear gloves to protect hands.
Blade use demands specific brush cutter configuration.
Operation without specified shield, barrier bar or U-handle, and
harness can result in serious personal injury. Follow installation
instructions.
*ANSI standards require brush cutters be equipped with a barrier bar or
restrictive harness. U-Handle ensures a higher safety factor.
Do Not install blades on GT (Curved Shaft) model trimmers.
• Arbor diameter of upper blade plate must match arbor diameter of blades.
• A new cotter pin is required each time a blade is installed.
• Brushcutters over 7.5 kg (16.5 lbs.) dry weight (without fuel) require a
double shoulder harness.
Note: The barrier bar is used to restrict rearward movement
of the unit. The barrier bar is not a handle and should
not be gripped when using or carrying the unit.
Blade Selection
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. Never
use an edging blade, circular saw blade, or any other type of
unapproved blade.
be used wherever 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 up to 19 mm
(0.75 in.) diameter. DO NOT use
this blade for brush or heavy woody
growth.
80 Tooth Brush Blade is designed
for cutting brush and woody growth
up to 13 mm (0.5 in.) diameter.
22 Tooth Clearing Blade is
designed for dense thickets and
saplings up to 64 mm (2.5 in.)
diameter.
A trimmer-brushcutter with a metal blade can cause serious
injuries if handled improperly.
Always use extreme care when
carrying or handling the equipment
to avoid contact with the cutting
edges of the blade. Use the optional
blade cover (A) when unit is not in
use.
Keep blades in protective packaging
until ready to install. Store blades
safely after removal to prevent injury
from accidental contact.
Use blade protectors to protect
blade teeth during unit
transportation.
Use of the shoulder/waist harness is
recommended for ALL Trimmer/
brushcutter 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
reducing the possibility of blade contact with the operator's
hands and feet by restricting trimmer movement.
Make sure the warning sign on the back of the shoulder
harness can be read easily.
Note: In case of Emergency, disconnect the trimmer from the
harness.
Starting Cold Engine
The attachment will operate immediately when the engine
starts, and could result in possible serious injury. Keep
movable parts of the attachment away from objects that could
become entangled or thrown, and surfaces that could cause
loss of control.
1.Stop Switch
Move stop switch button (A)
forward, away from the STOP
position.
Pump purge bulb (C) until fuel is
visible and flows freely in the
clear fuel tank return line. Pump
bulb an additional 4 or 5 times.
4.Recoil Starter
Lay the unit on a flat area and
keep movable attachment parts
clear of all obstacles. Firmly
grasp throttle handle and throttle
trigger lockout with left hand and
fully depress throttle trigger to
wide open position. Rapidly pull
recoil starter handle/rope (D)
until engine fires (or maximum
five [5] pulls).
5.Choke
After engine fires (or 5 pulls), move choke (B) to the RUN () (open)
position. Firmly grasp throttle handle and throttle trigger lockout with left
hand and fully depress throttle trigger to wide open position. Pull 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 2 - 5.
6.Throttle Trigger
After engine warm-up, grip throttle handle and support handle. Depress
the throttle trigger lockout, and gradually depress throttle trigger to
increase engine RPM to operating speed.
Starting Warm Engine
The starting procedure is the same as Cold Start except DO NOT close the
choke, and do not hold throttle trigger fully depressed.
The attachment should not move at idle, otherwise serious
personal injury may result.
Note: If attachment moves, readjust carburetor according to
“Carburetor Adjustment” instructions in this manual or see
your ECHO Dealer.
1.Stop Switch
Move stop switch button (A)
forward away from the STOP
position.
2.Purge Bulb
Pump purge bulb (C) until fuel is
visible in the “Clear” fuel return
line. Pump bulb an additional 4
or 5 times.
3.Recoil Starter
Lay the unit on a flat area and
keep movable attachment parts
clear of all obstacles. Firmly grip
throttle handle and throttle
trigger lockout with left hand.
Rapidly pull recoil starter
handle/rope (D) until engine
fires.
Release throttle trigger and
allow engine to return to idle
before shutting off engine.
2.Stop Switch
Move stop switch button (A)
backward to STOP position.
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 unit
again.
Applications
Nylon line heads may be used for trimming, scything, edging, and scalping
of grass and light weeds.
Trimming
Feed the spinning line into the material to be cut. Tilt the line head to one
side to direct cutting debris away from you:
• Model SRM/PAS/SB/TX/C (Straight shaft, counter-clockwise line head
rotation) - Tilt the cutting head down on the right side (muffler side) while
cutting to direct cutting debris away from operator. Feed the line gradually
into the material you wish to cut, avoiding contact with fences or other
barriers.
Scything
Scything - Swing the cutting head in a level arc, gradually feeding the line
into the material being cut. Move forward with each arc to cut a swath. Width
of cutting swath depends on arc. Use a larger arc for a wider swath, or a
smaller arc for a narrow swath. Keep line head tilted to direct cutting debris
forward or away from you.
• Debris flows in direction of line head rotation. Change line head position
to assure debris flow is directed away from operator.
• Keep cutting line away from wire fences to avoid entanglement.
• Operate trimmer only with cutting head below knee height.
Reaction Forces
Push or Pull - Kickback or Kickout
During normal use, operating a brushcutter with a circular metal blade can
produce sudden strong reaction forces that are difficult to control. Strong
reaction forces can cause a loss of balance or loss of control of the
equipment, resulting in serious injury to operator and bystanders.
Understanding what causes these reactive forces may help you to avoid
them, and can help you to maintain control of the equipment if you
experience a sudden reaction during cutting. Reactive forces occur when
the force being applied by the cutting teeth of a blade meet resistance, and
some of the cutting force is directed back toward the equipment. The greater
the cutting force or the amount of resistance, the greater the reactive force.
Push and Pull Forces
Push and pull forces are reactive forces that push the
equipment directly toward the operator, or that pull the
equipment directly away from the operator. These forces
are the result of cutting on the sides of the blade. The
direction of the force depends on the side of the blade
being used, and the direction of blade rotation at the
point of contact. The reactive force is in the opposite
direction of blade rotation at the contact point,
regardless of where the contact is being made. These
types of reactive forces are also called “Blade Thrust.
As shown in the illustration, a blade turning
counterclockwise will cause the equipment to pull away
from the operator if the point of cutting resistance is on
the left side of the blade. If the point of cutting
resistance is on the right side of the blade, the
equipment will push back toward the operator. In both
examples, the reactive force is in the opposite direction
of blade rotation at the contact point where resistance
occurs.
Kickout is also a reactive force caused by resistance to cutting, but the
direction of blade thrust is lateral (to the left or right of the blade), instead of
forward or back toward the operator. In most cases, Push, Pull, and Kickout
can be reduced or eliminated by:
• Using the correct blade for the cutting job
• Using properly sharpened blades
• Applying consistent, even force to the blade
during the cut
• Avoiding obstacles and ground hazards
• Using extra care when cutting harder
materials such as extremely dry brush,
saplings, and small trees
• Cutting from a stable, secure position
Blade Cutting Problems
Binding - Blades may bind in the cut if dull or forced. Binding can damage
blade, and result in blade breakage or injury from fragments and flying
debris. If a blade binds in a cut, don’t try to get it out by applying “up and
down” force to pry the cut open. Applying prying force to the blade can bend
the blade, and result in blade failure and injury.
To free a blade that is bound in the cut, stop the engine, and support the
trimmer or brushcutter to keep stress off the blade. Push the tree away from
the entry point of the cut to open the cut, and pull the blade directly away
from the cut in a straight-line motion. Use caution when releasing the tree to
avoid being struck by spring-back or falling.
Inspect the blade for damage before proceeding. Sharpen teeth if dull, or
replace blade if cracked, bent, missing teeth, or otherwise damaged.
To prevent binding:
• Keep blades sharp
• Avoid excessive pressure during cuts
• Don’t exceed cutting capacity of blade
• Don’t use blades with damaged or missing cutting teeth
Moving parts can amputate fingers or cause severe injuries.
Keep hands, clothing and loose objects away from all openings.
Always stop engine, disconnect spark plug, and make sure all
moving parts have come to a complete stop before removing
obstructions, clearing debris, or servicing unit. Allow unit to
cool before performing service. Wear gloves to protect hands
from sharp edges and hot surfaces.
Operating a poorly maintained unit can result in serious injuries
to operator or bystanders. Always follow all maintenance
instructions as written, otherwise serious personal injury may
result.
Your 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, we recommend that
you take your unit to a Servicing Dealer for maintenance. To help you decide
whether you want to DO-IT-YOURSELF or have the Dealer do it, each
maintenance task has been graded. If the task is not listed, see your Dealer
for repairs.
Skill Levels
Level 1 = Easy to do. Common tools may be required.
Level 2 = Moderate difficulty. Some specialized tools may be required.
Level 3 = See your dealer.
Click HERE or go to http://www.echo-usa.com/products/maintenance-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 air cleaner area.
2.Remove air filter cover. Brush
dirt from inside cover.
3.Replace filter if it is damaged,
fuel soaked, very dirty, or the
rubber sealing edges are
deformed.
• Lightly brush debris from filter.
• Soak heavily soiled filters in
water/detergent solution to
loosen dirt, then brush lightly.
• Rinse with clean water and allow to dry completely before reuse.
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.
Do not damage fuel line while removing fuel filter from tank.
2.Pull the fuel filter from the fuel tank.
3.Do not remove the wire coil clamp to remove the fuel filter. Pinch the
fuel filter with the fingers on one hand and the fuel line just below the
clamp with the other hand. Pull and twist slightly to separate.
4.Install the new fuel filter with reverse action.
Note: Federal EPA regulations require all model year 2012 and later
gasoline powered engines produced for sale in the United
States to be equipped with a special low permeation fuel
supply hose between the carburetor and fuel tank. When
servicing model year 2012 and later equipment, only fuel
supply hoses certified by EPA can be used to replace the
original equipment supply hose. Fines up to $37,500.00 may
be enforced for using an non-certified replacement part.
Use only NGK BPM8Y spark plug (BPMR8Y in Canada) otherwise
severe engine damage may occur.
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 150- 170 kgf•cm (130-150 in•lbf).
Cooling System
Level 2.
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.
1.Remove spark plug lead.
2.Remove air cleaner cover (A).
3.Remove engine cover (B).
DO NOT use a metal scraper to remove dirt from the cylinder fins.
4.Use a brush to remove dirt from
the cylinder fins.
1.Remove spark plug lead from spark plug, and remove engine cover.
2.Place piston at top dead center.
Remove muffler (A) and heat
shield (B).
3.Use a wood or plastic scraping
tool to clean deposits from
cylinder exhaust port (C).
Never use a metal tool to scrape carbon from the exhaust port. Do
not scratch the cylinder or piston when cleaning the exhaust port. Do
not allow carbon particles to enter the cylinder.
New engines must be operated a minimum duration of two tanks of fuel
break-in 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 Operation
This engine has been factory adjusted to maintain satisfactory starting and
durability performance up to 330 m (1100 ft.) above sea level (ASL) (96.0
kPa). To maintain proper engine operation and emission compliance above
330 m (1100 ft.) ASL the carburetor may
authorized ECHO service dealer.
need to be adjusted by an
If the engine is adjusted for operation above 330 m (1100 ft.) ASL, the
carburetor must be re-adjusted when operating the engine below
330 m (1,100 ft.) ASL, otherwise severe engine damage may result.
Note: Every unit is run at the factory and the carburetor is set in
compliance with emission regulations. Carburetor
adjustments, other than idle speed, must be performed by an
authorized ECHO dealer.
1.Check idle speed and reset if
necessary. If a tachometer is
available, idle speed screw (A)
should be set to the
specifications found on
“Specifications” page of this
manual. Turn idle screw (A)
clockwise to increase idle
speed; counterclockwise to
decrease idle speed.
When carburetor adjustment is completed, the cutting
attachment should not move at idle, otherwise serious personal
injury may result.
Note: For normal use, Speed Feed® head disassembly is not
necessary. However, if circumstances require disassembly,
follow these instructions.
1.Press top of locking tabs (A) on
both sides of Speed Feed®
head to release cover (B) from
eyelet carrier (C).
2.Remove cover from eyelet
carrier.
Sharpening Metal Blades
Several styles of metal blades are
approved for use on the 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.
1.File each tooth at a 30° angle a
specific number of times, e.g.,
four 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.
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 by grounding spark plug
near cylinder plug hole, otherwise serious personal injury may
result.
ENGINE PROBLEM TROUBLESHOOTING CHART
ProblemCheckStatusCauseRemedy
Engine
starts hard
or
Engine
does not
start
Fuel at
carburetor
Fuel at
cylinder
Spark at
end of plug
wire
Spark at
plug
No fuel at
carburetor
No fuel at
cylinder
Muffler wet
with fuel
No spark
Fuel strainer or
fuel line
obstructed
CarburetorSee your dealer
Fuel mixture too
rich
Stop switch OFF
- Electrical
problem Interlock switch
Incorrect gap Covered with
carbon - Fouled
with fuel - Plug
defective
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.
Do not store in enclosure where fuel fumes may accumulate or
reach an open flame or spark.
2.Place the stop switch in the “OFF” 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 fuel tank completely. Press purge bulb 6-7 times to remove
remaining fuel from carburetor then drain the tank again. Close choke,
start and run the engine until it stops due to lack of fuel.
7.Allow engine to cool. Remove the spark plug lead from the spark plug.
Remove the spark plug. Pour 7 cc (0.25 oz.) of fresh, clean, two-stroke
engine oil into the cylinder through the spark plug hole.
8.Pull the recoil starter handle 2-3 times to distribute the oil inside the
engine.
9.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.
10. Install the spark plug. Connect the spark plug lead to the spark plug.
PAS-225 SB Only:
Storage Hook Installation
1.Insert small end of hook into
locating hole on attachment
shaft.
Length 1798 mm (70.7 in.)
Width246 mm (9.7 in.)
Height328 mm (12.9 in.)
Weight (dry)5.4 kg (11.9 lb.)
Engine TypeAir cooled, two-stroke, single cylinder gasoline engine
Bore32.2 mm (1.27 in.)
Stroke26.0 mm (1.02 in.)
Displacement21.2 cc (1.29 cu. in.)
Exhaust
CarburetorDiaphragm with purge pump
Ignition SystemFlywheel magneto, capacitor discharge ignition type
Spark PlugNGK BPM-8Y (Gap 0.65 mm [0.026 in.])
FuelMixed (Gasoline and Two-stroke Oil)
Fuel/Oil Ratio50:1
Gasoline
Oil
Fuel Tank Capacity0.44 l (14.9 US fl. oz.)
Starter SystemAutomatic Rewind Starter
ClutchCentrifugal Type
Drive Shaft (upper & lower)6.35 mm (0.25 in.) flexible shaft
Rotating DirectionCounterclockwise; viewed from top
Trimmer AttachmentSpeed Feed
Spark arrestor muffler or spark arrestor muffler with
catalyst
Use 89 Octane unleaded. Do not use fuel containing
methyl alcohol, more than 10% ethyl alcohol or 15%
MTBE. Do not use alternative fuels such as E-15 or
E-85.
Use only ECHO attachments for these models. Serious injury
may result from the use of non ECHO 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.
0.91 m (3.0 ft.) Extension*99944200536
* For use with: Articulating Hedge Trimmer, Hedge Trimmer, and Power Pruner™
Attachments ONLY.
PRODUCT REGISTRATION
Thank you for choosing ECHO Power Equipment
Please go to http://www.echo-usa.com/Warranty/Register-Your-ECHO to
register your new product on-line. It's FAST and EASY! NOTE: your
information will never be sold or misused by ECHO, Inc. Registering your
purchase enables us to contact you in the unlikely event of a service update
or product recall, and verifies your ownership for warranty consideration.
If you do not have access to the Internet, you can complete the form below
and mail to:
ECHO Inc., Product Registration, PO Box 1139, Lake Zurich IL 60047.