Echo Pro Attachment PAS-225 User manual

X7722278004
© 11/2016 ECHO Inc.
Operator’s Manual
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.
x7722271404 /x772000164
PAS-225 / 225SB
Pro Attachment
SeriesTM
Burn Hazard
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.
The engine exhaust from this product contains chemicals known to the
State of California to cause cancer, birth defects, or other reproductive
harm.
Users of this equipment risk injury to themselves and others if
the unit is used improperly and/or safety precautions are not
followed. Echo provides and operator’s manual and a safety
manual. Both must be read and understood for proper and safe
operation. Failure to do so could result in serious injury.

TABLE OF CONTENTS PAS-225/SB
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TABLE OF CONTENTS
Table of Contents........................................................................................ 2
Introduction ................................................................................................. 4
The Operator’s Manual ........................................................................ 4
The Safety Manual............................................................................... 4
Servicing Information.................................................................................. 4
Parts/Serial Number ............................................................................ 4
Service................................................................................................. 5
Echo Consumer Product Support........................................................ 5
Product Registration ............................................................................ 5
Additional or Replacement Manuals.................................................... 5
Safety.......................................................................................................... 5
Manual Safety Symbols and Important Information............................. 5
International Symbols.......................................................................... 6
Personal Condition and Safety Equipment .......................................... 8
Equipment.......................................................................................... 13
Emission Control (Exhaust & Evaporative) .............................................. 14
CARB And EPA Emissions Control Information................................. 14
Description................................................................................................ 15
Contents.................................................................................................... 20
Assembly................................................................................................... 21
Power Head Shaft/Lower Shaft Assembly ......................................... 21
Support Handle Installation................................................................ 21
Operation .................................................................................................. 22
Fuel.................................................................................................... 22
Operation With Blades....................................................................... 25
Blade Selection.................................................................................. 26
Starting Cold Engine.......................................................................... 27
Starting Warm Engine........................................................................ 28
Stopping Engine ................................................................................ 29

PAS-225/SB TABLE OF CONTENTS
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Maintenance............................................................................................. 30
Skill Levels......................................................................................... 30
Maintenance Intervals ....................................................................... 30
Air Filter............................................................................................. 31
Fuel Filter .......................................................................................... 32
Spark Plug......................................................................................... 33
Cooling System ................................................................................. 33
Exhaust System ................................................................................ 35
Carburetor Adjustment ...................................................................... 36
Lubrication......................................................................................... 37
PAS-225 SB Only: ............................................................................. 38
Lubrication......................................................................................... 38
Nylon Line Head Disassembly Instructions....................................... 39
Nylon Line Replacement ................................................................... 39
Sharpening Metal Blades.................................................................. 41
Troubleshooting ........................................................................................ 42
Storage..................................................................................................... 43
Long Term Storage (Over 30 Days)................................................... 44
PAS-225 SB Only: ............................................................................. 44
Storage Hook Installation .................................................................. 44
Specifications ........................................................................................... 45
ECHO Optional Attachments............................................................. 47
Product Registration................................................................................. 48

INTRODUCTION PAS-225/SB
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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. Keep the manuals in a safe
place for future reference.
The operators manual contains specifications and information for safety,
operation, maintenance, storage and assembly specific to this product.
Scan the QR codes throughout the operator’s manual for more information.
The safety manual explains possible hazards and the measures you should
take to insure safe operation.
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. You can find these
numbers on the engine housing.
For future reference write them
in the space provided below.
Model No. _________________ Serial No. _________________

PAS-225/SB SAFETY
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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. 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 or Replacement Manuals
Replacement Operator or Safety Manuals, and Parts
Catalogs, are available from your Authorized ECHO
Service Dealer, or at www.echo-usa.com, or by contacting
ECHO Inc., 400 Oakwood Road, Lake Zurich, IL 60047
(800-673-1558). Always check www.echo-usa.com for
updated information.
Safety Videos are available from your Authorized ECHO Service Dealer. A
$5.00 shipping charge is required for each video.
SAFETY
Manual Safety Symbols and Important Information
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.

SAFETY PAS-225/SB
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The safety alert symbol accompanied by the word “DANGER”
calls attention to an act or condition which WILL lead toserious
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.
International Symbols
Symbol Description Symbol Description
Warning, See
Operator’s Manual Carburetor
Adjustment - High
Speed Mixture
Wear Eye, Ear
and Head
Protection
Carburetor
Adjustment - Idle
Speed
Wear Hand and
Foot Protection Carburetor
Adjustment - Low
Speed Mixture
Safety / Alert Emergency Stop

PAS-225/SB SAFETY
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Hot Surface Fuel and Oil Mixture
AVOID KICKOUT
Keep Bystanders At Least
15 m (50 ft.) Away
Beware Thrown Objects
Wear Eye Protection
Keep Bystanders and Helpers
Away 15 m (50 ft.)
DO NOT Allow
Flames or Sparks
Near Fuel Ignition
ON / OFF
DO NOT Smoke
Near Fuel Primer Bulb
Choke Control
“RUN” Position
(Choke Open)
Choke Control
“COLD START”
Position (Choke
Closed)
Keep Feet Away
From Blade Rotating Cutting Attachment
Thrown Objects Wear Face Shield
Finger Severing WearSlipResistant
Footwear
Symbol Description Symbol Description

SAFETY PAS-225/SB
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Personal Condition and Safety Equipment
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.
Do not operate
closer than 15 m
(50 ft.) from
electricalhazards.
Keep bystanders
at least 15 m
(50 ft.) away.
DO NOT USE
BLADES - Line
Head Only
Plan retreat path
from falling
objects.
Symbol Description Symbol Description

PAS-225/SB SAFETY
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• 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.
Hand Protection
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 hearing 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.

SAFETY PAS-225/SB
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• 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.

PAS-225/SB SAFETY
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• 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.
Repetitive Stress Injuries (RSI)
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.

SAFETY PAS-225/SB
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• 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
ventilatedareas.Engineexhaustcontainspoisonousemissions
and can cause serious injury or death.
Read the Manuals
• Provide all users of this equipment with the Operator’s Manual and Safety
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 over reach.
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.

PAS-225/SB SAFETY
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Equipment
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.

EMISSION CONTROL PAS-225/SB
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EMISSION CONTROL (EXHAUST &
EVAPORATIVE)
CARB And EPA Emissions Control Information
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 (3-way 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).
Product Emission Durability
(Emission Compliance Period)
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.

PAS-225/SB DESCRIPTION
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DESCRIPTION
PAS-225
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.
1
2
3
4
5
6
7
8
910
11
12
13
14
15
16 17
Hot Label

DESCRIPTION PAS-225/SB
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1. POWER HEAD - Includes the Engine, Clutch, Fuel System, Ignition
System and Recoil Starter.
2. THROTTLE HANDLE - FOR RIGHT HAND - Contains Stop Switch,
Throttle Lockout, and Throttle Trigger.
3. THROTTLE TRIGGER LOCKOUT - This lever must be held during
starting. 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
handle. Move switch FORWARD to RUN, BACK to STOP.
5. SUPPORT HANDLE - FOR LEFT HAND - Grip for Left Hand.
6. UPPER DRIVE SHAFT ASSEMBLY - Includes the Throttle Handle,
Support Handle, Upper Flexible Drive Cable, Drive Shaft Assembly
Coupler, Harness Ring, and Power Head.
7. DRIVE SHAFT COUPLER - Includes Locator Pin and Clamping Knob.
8. THROTTLE TRIGGER - Spring loaded to return to idle when released.
During acceleration, press trigger gradually for best operating
technique.
9. TOP GUARD - Protects arm from the hot engine.
10. RECOIL STARTER HANDLE - 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.
11. SPARK ARRESTOR MUFFLER OR SPARK ARRESTOR MUFFLER
WITH CATALYST - The muffler or catalytic muffler controls exhaust
noise and emission. The spark arrestor screen prevents hot, glowing
particles of carbon from leaving the muffler. Keep exhaust area clear of
flammable debris.
12. FUEL TANK - Contains fuel and fuel filter.
13. FUEL TANK CAP - Covers and seals fuel tank opening.
14. CHOKE - The choke control is located at the rear of the air cleaner
housing. Move choke lever to COLD START ( ) to close choke for
cold start. Move choke lever to “RUN” ( ) position to open choke.
15. AIR CLEANER - Contains replaceable filter element.
16. PURGE BULB - Pumping purge bulb before starting engine draws
fresh fuel from the fuel tank, purging air from the carburetor. Pump
purge bulb until fuel is visible and flows freely in the clear fuel tank
return line. Pump purge bulb an additional 4 or 5 times.
17. SPARK PLUG - Provides spark to ignite fuel mixture.

PAS-225/SB DESCRIPTION
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PAS-225 SB
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.
1
2
3
4
5
6
7
12
8
910
11
13
16
14
15
17
19
20
18
21
Shaft Label Hot Label

DESCRIPTION PAS-225/SB
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1. POWER HEAD - Includes the Engine, Clutch, Fuel System, Ignition
System and Recoil Starter.
2. THROTTLE HANDLE - FOR RIGHT HAND - Contains Stop Switch,
Throttle Lockout, and Throttle Trigger.
3. THROTTLE TRIGGER LOCKOUT - This lever must be held during
starting. 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
handle. Move switch FORWARD to RUN, BACK to STOP.
5. SUPPORT HANDLE - FOR LEFT HAND - The support handle must be
assembled to the Upper Drive Shaft Assembly (some models) and
must be positioned for proper cutting attitude and operator comfort.
6. UPPER DRIVE SHAFT ASSEMBLY - Includes the throttle handle,
support handle, Upper Flexible Drive Cable, Drive Shaft Assembly
Coupler and Power Head.
7. DRIVE SHAFT COUPLER - Includes Locator Pin and Clamping Knob.
8. LOWER DRIVE SHAFT ASSEMBLY - Includes the Debris Shield
Assembly, Gear Housing Assembly, Lower Flexible Drive Cable, Cutting
Attachment, 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 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.
11. DEBRIS SHIELD with CUT-OFF KNIFE - Required when unit is
equipped with nylon line head. Do not operate unit without shield.
12. THROTTLE TRIGGER - Spring loaded to return to idle when released.
During acceleration, press trigger gradually for best operating
technique.
13. TOP GUARD - Protects arm from the hot engine.
14. SPARK ARRESTOR MUFFLER OR SPARK ARRESTOR MUFFLER
WITH CATALYST - The muffler or catalytic muffler controls exhaust
noise and emission. The spark arrestor screen prevents hot, glowing
particles of carbon from leaving the muffler. Keep exhaust area clear of
flammable debris.
15. FUEL TANK - Contains fuel and fuel filter.
16. RECOIL STARTER HANDLE - 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.

PAS-225/SB DESCRIPTION
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17. FUEL TANK CAP - Covers and seals fuel tank opening.
18. PURGE BULB - Pumping purge bulb before starting engine draws
fresh fuel from the fuel tank, purging air from the carburetor. Pump
purge bulb until fuel is visible and flows freely in the clear fuel tank
return line. Pump purge bulb an additional 4 or 5 times.
19. CHOKE - The choke control is located at the rear of the air cleaner
housing. Move choke lever to COLD START ( ) to close choke for
cold start. Move choke lever to “RUN” ( ) position to open choke.
20. AIR CLEANER - Contains replaceable filter element.
21. SPARK PLUG - Provides spark to ignite fuel mixture.

CONTENTS PAS-225/SB
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CONTENTS
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.
____ 1 - Power Head w/ Upper Drive
Shaft Assembly
____ 1 - Lower Drive Shaft Assembly*
____ 1 - Operator's Manual
____ 1 - Safety Manual
____ 1 - Warranty Statement
____ 1 - Echo Power Blend XTM
2-Stroke Oil Sample
____ 1 - Safety Glasses
____ 1 - Storage Hook Assembly*
*Included with PAS-225SB only