Echo 99944200610, SRM-2100SB, SRM-2400SB, SRM-210SB, SRM-211SB, SRM-260SB, SRM-261SB, PAS-2100, PAS-2400, PAS2601, PAS-210,... User manual

X7532279109
© 7/2016 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.
99944200540
Trimmer Attachment
FOR MODELS: SRM-2100SB, 2400SB, 210SB, 211SB, 225SB,
260SB, 261SB, PAS-2100, 2400, 2601, 210, 211, 225, 225VP,
225VPB, 230, 231, 260, 261, 265, 266, 280
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 an operator’s manual. It must be read
and understood for proper and safe operation. Failure to do so
could result in serious injury.

TABLE OF CONTENTS 99944200540
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TABLE OF CONTENTS
Table of Contents.............................................................................................. 2
Introduction ....................................................................................................... 3
The Operator’s Manual .............................................................................. 3
The Safety Manual..................................................................................... 3
Servicing Information........................................................................................ 3
Parts/Serial Number .................................................................................. 3
Service....................................................................................................... 3
Echo Consumer Product Support.............................................................. 4
Product Registration .................................................................................. 4
Additional or Replacement Manuals.......................................................... 4
Safety................................................................................................................ 4
Manual Safety Symbols and Important Information................................... 4
International Symbols................................................................................ 5
Personal Condition and Safety Equipment ................................................ 6
Equipment................................................................................................ 10
Description...................................................................................................... 11
Contents.......................................................................................................... 12
Assembly......................................................................................................... 13
Power Head Shaft/Lower Shaft Assembly ............................................... 13
Operation ........................................................................................................ 14
To Advance Trimmer Line (Automatic Line Head Models)....................... 14
Maintenance .................................................................................................. 14
Skill Levels............................................................................................... 14
Maintenance Intervals.............................................................................. 15
Lubrication ............................................................................................... 15
Nylon Line Replacement.......................................................................... 16
Storage............................................................................................................ 17
Storage Hook Installation......................................................................... 17
Specifications.................................................................................................. 17
Product Registration........................................................................................ 18

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© 7/2016 ECHO Inc.
99944200540 INTRODUCTION
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 will find both easy to
use and full of helpful operating tips and SAFETY messages.
The Operator’s Manual
Keep it in a safe place for future reference. Contains specifications and
information for safety, operation, maintenance, storage and assembly specific to
this product. Scan QR codes throughout the operator’s manual for more
information.
The Safety Manual
Keep it in a safe place for future reference. Explains possible hazards and the
measures you should take to insure safe operation.
SERVICING INFORMATION
Parts/Serial Number
Genuine ECHO Parts, assemblies
and maintenance kits for your ECHO
products are available 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. _________________
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.

SAFETY 99944200540
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© 7/2016 ECHO Inc.
Echo Consumer Product Support
If you require assistance or have questions concerning the application,
operation or maintenance of this product you may call the ECHO Consumer
Product Support Department at 1-800-673-1558 from 8:00 am to 5:00 pm
(Central Standard Time) Monday through Friday. Before calling, please know
the model and serial number of your unit.
Product Registration
To ensure trouble free warranty coverage it is important that you 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
your warranty coverage and provides a direct link between you and ECHO if we
find it necessary to contact you.
Additional or Replacement Manuals
Replacement Operator, Safety Manuals, and Parts
Catalogs are available from your ECHO dealer or at
www.echo-usa.com or by contacting ECHO Inc., 400
Oakwood Road, Lake Zurich, IL 60047 (800-673-1558).
Always check the ECHO Web Site for updated information.
Safety Videos are available from your Echo dealer. A $5.00
shipping charge will be required for each video.
SAFETY
Refer to your Pro Attachment Series or Split Boom Operator's
Manual for correct engine fueling, starting and stopping
instructions.
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.
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.

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99944200540 SAFETY
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 Safety/Alert
Wear eye, ear and
head protection Finger Severing
Wear hand
and foot protection Rotating Cutting Attachment
Wear Face Shield Wear slip resistant
foot wear

SAFETY 99944200540
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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.
• If you have taken alcohol or drugs.
Keep feet away
from blade
Do not operate
closer than 15 M (50
ft.) from electrical
hazards.
Keep bystanders at
least 15 meters
(50 feet) away
DO NOT USE
BLADES - Line
Head Only Thrown
objects
Plan retreat path
from falling
objects Hot Surface
AVOID KICKOUT.
Keepbystandersatleast15meters (50
feet) away.
Beware Thrown Objects Wear Eye
Protection
Keep bystanders and helpers
away 15 m (50 ft.).
Symbol Description Symbol Description

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99944200540 SAFETY
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.
• DO NOT OPERATE UNIT BAREFOOTED.
Keep long hair away from engine and air intake. Retain hair with cap or net.

SAFETY 99944200540
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© 7/2016 ECHO Inc.
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 machinegenerate 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.

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99944200540 SAFETY
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.
• 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 and Safety
Manual for instructions on Safe Operation.

SAFETY 99944200540
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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.
Equipment
Use this attachment with ECHO approved models only. Serious
injury may result from the use of this attachment combined with a
non approved ECHO product.
• Check unit for loose/missing nuts, bolts, and screws. Tighten and/or replace
as needed.
• 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.
Note: ECHO, INC. will not be responsible for the failure of cutting
devices, attachments or accessories which have not been tested
and approved by ECHO.
Moving parts can amputate fingers or cause severe injuries. Keep
hands, clothing and loose objects away from all openings.

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99944200540 DESCRIPTION
◆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.
DESCRIPTION
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. DRIVE SHAFT ASSEMBLY - Contains a specially designed liner and the
flexible drive shaft.
Shaft Label
1
4
2
3

CONTENTS 99944200540
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2. 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.
3. CUT-OFF KNIFE - Automatically trims line to the correct length: 5 in. 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.
4. DEBRIS SHIELD with CUT-OFF KNIFE - Required when unit is equipped
with nylon line head. Do not operate unit without shield.
CONTENTS
The ECHO product you purchased has been factory pre-assembled for your
convenience.
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 - PAS Trimmer Attachment
____ 1 - Operator's Manual
____ 1 - Warranty Sheet
____ 1 - Storage Hook Assembly
____ 1 - Safety Glasses
Specifications, descriptionsand illustrative material in thisliterature areas accurateas known at the time
of publication, but are subject to change without notice. Illustrationsmay include optionalequipment and
accessories, and may not include all standard equipment.
Operator’s Manual
X7722271404 / X772000164
© 4/2011 ECHO Inc.
X7722271404 / X772000164
Trimmer
Read rulesfor safe operation and instructionscarefully. ECHO providesan Operator’s Manual
and aSafety Manual. Both must be read and understood for properand safe o peration.
Attachment
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 mayinclude optional equipment and
accessories, and may not include all standard equipment.
Operator’s Manual
X7532279108
© 2/2014 ECHO Inc.
x7722271404 / x772000164
99944200540
Trimmer Attachment
FOR MODELS: SRM-2100SB, 2400SB, 210SB, 211SB, 225SB,
260SB, 261SB, PAS-2100, 2400, 2601, 210, 211, 225, 225VP,
225VPB, 230, 231, 260, 261, 265, 266, 280
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 an operator’s
manual. It must be read and understood for proper and safe operation. Failure to do so
could result in serious injury.

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99944200540 ASSEMBLY
ASSEMBLY
Power Head Shaft/Lower Shaft Assembly
Do not perform maintenance or assembly procedures with engine
running.
1. Set Power Head/Shaft Assembly on a level surface.
2. Pull locator pin (A) out, and turn counter-clockwise 1/4
turn to lock-out position.
3. Remove vinyl cap from attachment drive shaft.
4. Remove cardboard spacer, if necessary.
5. Carefully fit attachment drive
shaft assembly into coupler (B)
to decal assembly line (C),
making sure that the inner lower
drive shaft engages the square
upper drive shaft socket.
Note: Earlier model Power
Heads may have shorter
couplings.Short couplings
fit flush to decal point (E).
New couplings are 4-3/4
in. long, and fit flush to line
(C).
Note: Lower bearing housing and head assembly must be in line with
the engine.
6. Rotate locator pin (A) 1/4 turn
clockwise to engage lower shaft
hole. Insure locator pin is fully
engaged by twisting lower drive
shaft. Locator pin should snap
flush in coupler. Full
engagement will prevent further
shaft rotation.
7. Secure lower shaft assembly to
coupler by tightening clamping
knob (D).
Parts Required: PAS or SRM-SB Power Head w/Shaft & Coupling
A
B
D
E
C
C
D

OPERATION 99944200540
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OPERATION
Note: Refer to your PAS power source Operator's Manuals for correct
engine fueling, starting and stopping instructions.
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.
To Advance Trimmer Line (Automatic Line Head
Models)
See Maintenance Section for nylon line replacement.
To advance trimmer line, tap trimmer head against the ground while the head is
turning at normal operating speed.
MAINTENANCE
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.
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, we recommend that you
take your unit to an ECHO Servicing Dealer for maintenance. To help you
decide whether you want to DO-IT-YOURSELF or have the ECHO Dealer do it,
each maintenance task has been graded. If the task is not listed, see your
ECHO 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.

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99944200540 MAINTENANCE
Click HERE or go to http://www.echo-usa.com/products/maintenance-kit for
information on Maintenance Kits
Maintenance Intervals
IMPORTANT - Time intervals shown are maximum. Actual use and your
experience will determine the frequency of required maintenance.
(1) Apply lithium based grease.
Lubrication
Level 1.
Gear Housing
1. Clean all loose debris from gear
case.
2. Remove plug (A) and check level
of grease.
3. Add grease if necessary. DO
NOT over-fill.
Drive Shaft (Lower)
1. Loosen screw (B) and remove
locating screw (C). Pull gear
case and shield from drive shaft
housing.
2. Pull flexible cable from the drive shaft housing, wipe clean and re-coat with
a thin coating [15 ml (1/2 oz.)] of grease.
3. Slide the flexible cable back in the drive housing. DO NOT get dirt on the
flex cable.
4. Install the gear housing and shield assembly.
Component/System Maintenance
Procedure Skill Level Interval
Drive Shaft Grease 1 Every 25 hours of use (1)
Gear Housing Grease 1 Every 50 hours of use (1)
Screws/Nuts/Bolts Inspect/ Tighten/
Replace 1 Before Each Use
Parts Required: Lithium Base Grease.
A
B
C

MAINTENANCE 99944200540
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Nylon Line Replacement
Wear Gloves or personal injury may result:
◆Cutoff knife is sharp.
◆Gearcase and surrounding area may be hot.
1. Cut one piece of line to
recommended length.
2.0 mm (.080) diam. – 6 m (20
ft.)
2.4 mm (.095) diam. – 6 m (20
ft.)
2. Align arrows on top of knob with
openings in eyelets.
3. Insert one end of trimmer line
into an eyelet, and push line
equal distance through trimmer
head.
4. Hold trimmer head while turning
knob clockwise to wind line onto
spool until about 13 cm (5 in.) of
each line remains exposed.
Trimmer head is now fully loaded
and ready for operation.

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99944200540 STORAGE
When the wear indicators located
at the bottom of the Speed-
Feed® head are worn smooth, or
if holes appear, replacement of
the cover or the entire Speed-
Feed® head is required.
STORAGE
Storage Hook Installation
1. Insert small end of hook into locating hole
on attachment shaft.
2. Slide plastic cap onto end of attachment
shaft.
SPECIFICATIONS
MODEL 99944200540
Shaft Length 834 mm (32.87 in.)
Attachment Width 177 mm (6.97 in.)
Attachment Height 236 mm (9.29 in.)
Weight (dry) w/line head 1.07 kg (2.35 lb.)
Drive Shaft 1/4" Flex Shaft
Direction of Rotation Counter clockwise viewed from the top
Cutter Head Speed-Feed® Nylon line head
Line Capacity 6 m (20 ft.)
Wear Indicators

PRODUCT REGISTRATION 99944200540
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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.

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99944200540 PRODUCT REGISTRATION

ECHO, INCORPORATED
400 Oakwood Road
Lake Zurich, IL 60047
www.echo-usa.com
S06400369501/S06400999999