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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.
Operator’s Manual
PAS 2620
Pro Attachment Series™
Burn Hazard
The muffler or catalytic muffler and surrounding cover
may become extremely hot. Always keep clear of ex-
haust and muffler area, otherwise serious personal in-
jury 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 pre-
cautions are not followed. Echo provides an 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.
Note: This product complies with CAN ICES-2/NMB-2.
TABLE OF CONTENTS PAS-2620
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TABLE OF CONTENTS
Introduction ................................................................................................. 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 .......................................... 7
Equipment.......................................................................................... 12
Emission Control (Exhaust & Evaporative) .............................................. 13
CARB And EPA Emissions Control Information................................. 13
Description ................................................................................................ 14
Contents.................................................................................................... 15
Assembly................................................................................................... 15
Power Head Shaft To Lower Shaft Assembly..................................... 15
Support Handle Installation................................................................ 16
Operation .................................................................................................. 17
Fuel.................................................................................................... 17
Starting Cold Engine.......................................................................... 20
Starting Warm Engine........................................................................ 21
Stopping Engine ................................................................................ 22
Maintenance ............................................................................................. 23
Skill Levels......................................................................................... 23
Maintenance Intervals........................................................................ 23
Air Filter ............................................................................................. 24
Fuel Filter........................................................................................... 26
Spark Plug ......................................................................................... 26
Cooling System.................................................................................. 27
Exhaust System................................................................................. 28
Carburetor Adjustment....................................................................... 30
Lubrication ......................................................................................... 31
Troubleshooting......................................................................................... 33
Storage...................................................................................................... 34
Long Term Storage (Over 30 Days)................................................... 34
Specifications............................................................................................ 35
ECHO Optional Attachments ............................................................. 37
Product Registration.................................................................................. 38
PAS-2620 INTRODUCTION
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INTRODUCTION
Welcome to the ECHO family. This ECHO product was designed and manu-
factured to provide long life and on-the-job dependability. Read and under-
stand 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 Assem-
blies 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.
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. www.echo-usa.com
. When presenting your unit for Warranty service/
repairs, proof of purchase is required.
SAFETY PAS-2620
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Echo Consumer Product Support
If you require assistance or have questions concerning the application,
operation, or maintenance of this product, call the ECHO Consumer Prod-
uct Support Department at 1-800-673-1558 from 8:00 am to 5:00 pm (Cen-
tral 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 Ser-
vice 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.
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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The safety alert symbol accompanied by the wrod “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 pro-
tection of the unit.
Note: This enclosed message provides tips for use, care and main-
tenance 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
H
T
L
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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
Wear Slip Resistant
Footwear
Symbol Description Symbol Description
PAS-2620 SAFETY
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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 fol-
lowed. Proper clothing and safety gear must be worn when op-
erating 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.
Do not operate
closer than 15 m
(50 ft.) from
electrical hazards.
Keep bystanders
a t l e as t 1 5 m
(50 ft.) away.
DO NOT USE
BLADES - Line
Head Only
Plan retreat path
from falling
objects.
Symbol Description Symbol Description
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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 han-
dles. Gloves also provide protection against cuts and scratches, cold envi-
ronments, 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 surround-
ing 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.
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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 pacemak-
ers. To reduce the risk of serious or fatal injury, persons with
pacemakers should consult with their physician and the pace-
maker manufacturer before operating this machine. In the ab-
sence 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 inju-
ry. Read and follow all safety and operation instructions to min-
imize 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 mini-
mum 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 exer-
cises during frequent work
breaks, and also by not smoking.
• Limit the hours of operation. Try to
fill each day with jobs where oper-
ating the unit or other hand-held
power equipment is not required.
• If you experience discomfort, red-
ness, and swelling of the fingers followed by whitening and loss of feeling,
consult your physician before further exposing yourself to cold and vibra-
tion.
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Repetitive Stress Injuries
(RSI)
It is believed that overusing the
muscles and tendons of the fingers,
hands, arms, and shoulders may
cause soreness, swelling, numb-
ness, 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 Syn-
drome (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 mus-
cle damage can be prevented.
All over head electrical conductors and communications wires
can have electricity flow with high voltages. This unit is not in-
sulated 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 ventilat-
ed areas. Engine exhaust contains poisonous emissions and
can cause serious injury or death.
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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.
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, attach-
ments 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.
EMISSION CONTROL PAS-2620
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◆ 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 . (EXHAUST & EVAPO-
RATIVE)
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 Emis-
sion Control Information label (sam-
ple 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.
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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 com-
pliance 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 Mainte-
nance Section of this manual.
DESCRIPTION PAS-2620
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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. POWER HEAD
2. THROTTLE HANDLE - FOR RIGHT HAND
3. THROTTLE TRIGGER LOCKOUT
4. STOP SWITCH
5. SUPPORT HANDLE - FOR LEFT HAND
6. UPPER DRIVE SHAFT ASSEMBLY
7. DRIVE SHAFT COUPLER
8. THROTTLE TRIGGER
17
11
12
10
9
16
14
15
1
2
3
4
5
6
7
8
13
PAS-2620 CONTENTS
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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 neces-
sary.
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.
ASSEMBLY
Power Head Shaft To Lower Shaft Assembly
Do not perform maintenance or assembly procedures with en-
gine running.
9. TOP GUARD
10. RECOIL STARTER HANDLE
11. SPARK ARRESTOR MUFFLER OR SPARK ARRESTOR MUFFLER
WITH CATALYST
12. FUEL TANK
13. FUEL TANK CAP
14. CHOKE
15. AIR CLEANER
16. PURGE BULB
17. SPARK PLUG
____1 Power Head with Upper Drive Shaft Assembly
____1 Operator's Manual
____1 Safety Manual
____1 Warranty Statement
____1 Safety Glasses
Parts Required: PAS or SRM-SB Power Head Shaft and Coupling
ASSEMBLY PAS-2620
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1. Set Power Head/Shaft Assembly on a level surface.
2. Pull locater pin (A) out, and turn counter-clockwise ¼
turn to lock-out position.
3. Remove vinyl cap from attachment drive shaft.
4. Remove cardboard spacer, if necessary.
Note: Your coupler may appear different than cou-
pler shown.
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.
Note: Lower bearing housing
and head assembly must be in line with the engine.
6. Rotate locater pin (A) ¼ turn
clockwise to engage lower shaft
hole. Insure locater pin is fully
engaged by twisting lower drive
shaft. Locater pin should snap
flush in coupler. Full engage-
ment will prevent further shaft
rotation.
7. Secure lower shaft assembly to
coupler by tightening clamping
knob (D).
Support Handle Installation
Note: Label shows minimum
spacing for support han-
dle location.
1. If necessary, position support
handle for comfortable opera-
tion and securely tighten
screws.
B
A
C
D
A
MINIMUM
SPACING
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OPERATION
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 po-
sition 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 prob-
lems, loss of power, overheating, fuel vapor lock, and unintend-
ed 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.
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Fuel Requirements
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. ECHO Red Armor Fuel
™
(Power Fuel
™
) is
93 octane, ethanol-free fuel premixed with ECHO Red Armor
®
engine oil at
50:1 ratio. Use of ECHO Red Armor Fuel
™
(Power 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 meeting ISO-L-EGD (ISO/CD
13738) and J.A.S.O. FD Standards must be used. Echo brand 2-stroke oils
meet these standards. Engine problems due to inadequate lubrication
caused by failure to use an ISO-L-EGD (ISO/CD 13738) and J.A.S.O.
M345-FD
certified oil, such as Echo brand 2-stroke oils, will void the two-
stroke engine warranty.
Echo brand 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.
◆ 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.
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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 re-
duce fuel spillage.
• Empty the fuel tank prior to storing the unit. Return
unused fuel to an approved fuel storage container.
Storage - Fuel storage laws vary by locality. Contact your
local government for the laws affecting your area. As a
precaution, store fuel in an approved, airtight container.
Store in a well-ventilated, unoccupied building, away from
sparks and flames.
Stored fuel ages. Do not mix more fuel than you expect to use in thirty
(30) days, ninety (90) days when a fuel stabilizer is added.
Stored two-stroke fuel may separate. ALWAYS shake fuel container
thoroughly before each use.
Used oil and gasoline, and soiled towels are hazardous waste mate-
rials. Disposal laws vary by locality.
Fuel to Oil Mix – 50:1 Ratio
US Metric
Gas Oil Gas Oil
Gallons Oz. Liter CC.
12.65100
2 5.2 10 200
51325500
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Starting Cold Engine
The attachment will operate immediately when the engine
starts, and could result in possible serious injury. Keep mov-
able parts of the attachment away from objects that could be-
come entangled or thrown, and surfaces that could cause loss
of control.
1. Stop Switch
Move stop switch button (A) for-
ward, away from the STOP posi-
tion.
2. Choke
Move choke lever (B) to COLD
START ( ) position.
3. Purge Bulb
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).
A
B
C
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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 (D) until engine
starts and runs. Release throttle
trigger and allow unit to warm up at idle for several minutes.
Note: If engine does not start with choke in “RUN” position after 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 per-
sonal injury may result.
Note: If attachment moves, readjust carburetor according to “Car-
buretor Adjustment” instructions in this manual or see your
ECHO Dealer.
1. Stop Switch
Move stop switch button (A) for-
ward away from the STOP posi-
tion.
D
A
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2. Purge Bulb
Pump purge bulb (B) 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 trig-
ger lockout with left hand. Rap-
idly pull recoil starter handle/
rope (D) until engine fires.
Note: If engine does not start
after 5 pulls, use Cold Start Procedure.
Stopping Engine
1. Throttle
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 po-
sition, close choke - COLD START position - to stall engine.
Have your ECHO dealer repair stop switch before using unit
again.
B
D
A
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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.
Click HERE or go to http://www.echo-usa.com/products/maintenance-kit for
information on Maintenance Kits.
Maintenance Intervals
COMPONENT/SYSTEM
MAINTENANCE
PROCEDURE
REQ’D
SKILL
LEVEL
Daily or Before Use
Air Filter
Inspect/Clean* 1
Choke Shutter
Inspect/Clean* 1
Fuel System
Inspect3 1
Cooling System
Inspect/Clean 2
Recoil Starter Rope
Inspect/Clean* 1
Screws/Nuts/Bolts
Inspect/Tighten/Replace* 1
Every Refuel
Fuel System
Inspect3 1
MAINTENANCE PAS-2620
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IMPORTANT NOTE - Time intervals shown are maximum. Actual use and
your experience will determine the frequency of required maintenance.
MAINTENANCE PROCEDURE NOTES:
1Apply lithium based grease every 25 hours of use.
2Apply lithium based grease every 50 hours of use.
3Low evaporative fuel tanks DO NOT require regular maintenance to main-
tain emission integrity.
*Replacement is recommended based on the finding of damage or wear
during inspection.
Air Filter
Level 1
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 Months
Air Filter
Replace* 1
Fuel Filter
Inspect* 1
Fuel Cap Gasket
Inspect* 1
Spark Plug
Inspect/Clean/Replace* 1
Muffler Spark Arrestor
Inspect/Clean/Replace* 2
Cylinder Exhaust Port
Inspect/Clean/De-carbon 2
Drive Shaft (Flex Cable Models)
Grease1 2
Gear Housing Grease2 2
Yearly
Fuel Filter
Inspect/Replace* 1
Fuel Cap Gasket
Replace* 1
Parts Required: Tune Up Kit.
COMPONENT/SYSTEM
MAINTENANCE
PROCEDURE
REQ’D
SKILL
LEVEL
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Assure throttle wire retaining clip
(A) remains in place as shown
when removing or installing air
filter cover.
3. Remove foam pre-filter (B) and
air filter and clean as indicated
below:
4. Foam Pre-filter
• Clean foam filter in water/
detergent solution and rinse
with clean water.
• Wrap the filter in a clean, dry
cloth and squeeze (do not
wring) dry. Allow to dry completely before reuse. Do not oil.
Air Filter
• Lightly brush debris from filter. Replace filter if it is damaged, fuel
soaked, very dirty, or the rubber sealing edges are deformed.
5. Assemble components in reverse order.
Assure air filter is assembled
with pleats oriented vertically.
A
B
MAINTENANCE PAS-2620
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Fuel Filter
Level 1.
Fuel is VERY flammable. Use extreme care when mixing, storing
or handling, or serious personal injury may result.
1. Use a clean rag to remove
loose dirt from around fuel cap
and empty fuel tank.
2. Pull the fuel filter from the fuel
tank.
Do not damage fuel line while removing fuel filter from tank.
3. Remove the filter from the line and install the new filter.
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 sup-
ply hose between the carburetor and fuel tank. When servic-
ing 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 may be
enforced for using an un-certified replacement part.
Spark Plug
Level 2.
Parts Required: Tune Up Kit.
Parts Required: Tune Up Kit.
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Use only NGK CMR7H spark plug 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 bend-
ing outer electrode.
4. Tighten spark plug to 102-153
kgf•cm (89-133 in•lbf).
Cooling System
Level 2.
To maintain proper engine oper-
ating temperatures, cooling air
must pass freely through the cyl-
inder fin area. This flow of air car-
ries combustion heat away from
the engine.
Overheating and engine seizure can
occur when:
• Air intakes are blocked, prevent-
ing 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 consid-
ered “Normal Maintenance.” Any failure attributed to lack of maintenance is
not warranted.
Parts Required: None if you are careful.
0.65 mm (0.026 in.)
MAINTENANCE PAS-2620
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1. Remove spark plug lead.
2. Remove muffler cover (A).
3. Remove engine cover (B).
DO NOT use a metal scraper to remove dirt from the cylinder fins.
4. Use brush to remove dirt from
the cylinder fins.
5. Remove grass and leaves from
the grid (C) between the recoil
starter and fuel tank.
6. Assemble components in
reverse order.
Exhaust System
Spark Arrestor Screen
Level 2.
1. Remove spark plug lead.
2. Remove muffler cover (A).
3. Place piston at Top Dead Center (TDC) to prevent carbon or dirt from
entering cylinder.
Parts Required: Spark Arrestor Screen, Gasket
A
B
C
C
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4. Remove spark arrestor screen
cover (B), gasket (C), and
screen (D), from muffler body.
5. Clean carbon deposits from
muffler components.
Note: When cleaning carbon
deposit, be careful not to
damage the catalytic ele-
ment inside muffler.
6. Replace screen if it is cracked,
plugged, or has holes burned through.
7. Assemble components in reverse order.
Exhaust Port Cleaning
Level 2.
1. Remove spark plug lead from
spark plug, and remove muffler
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 cyl-
inder exhaust port (C).
Parts Required: As needed: Heat Shield
A
B
D
C
AB
C
MAINTENANCE PAS-2620
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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.
4. Inspect heat shield, and replace if damaged.
5. Install heat shield and muffler.
6. Tighten muffler mounting bolts (or nuts) to 90-110 kgf•cm (80-95
in•lbf).
7. Install muffler cover and attach spark plug lead.
8. Start engine, and warm to operating temperature.
9. Stop engine, and re-tighten mounting bolts (or nuts) to specifications.
Carburetor Adjustment
Level 2.
When carburetor adjustment is completed, the cutting attach-
ment should not move at idle, otherwise serious personal injury
may result.
Engine Break-In
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,
emission, and durability performance up to 1,100 feet above sea level (ASL)
(96.0 kPa). To maintain proper engine operation and emission compliance
above 1,100 feet ASL the carburetor may
need to be adjusted by an autho-
rized ECHO service dealer.
If the engine is adjusted for operation above 1,100 feet ASL, the car-
buretor must be re-adjusted when operating the engine below 1,100
feet ASL, otherwise severe engine damage may result.
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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 specifica-
tions found on “Specifications”
page of this manual. Turn idle
screw (A) clockwise to increase
idle speed; counterclockwise to
decrease idle speed.
Lubrication
Level 1.
Drive Shaft Upper
1. Loosen clamping knob (A)
2. Pull locater pin (B) and rotate ¼
turn counterclockwise to lock-
out position.
3. Remove attachment.
Parts Required: None
Parts Required: Lithium Based Grease.
A
A
A
B
MAINTENANCE PAS-2620
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4. Remove coupler from upper
drive shaft assembly by loosen-
ing clamping screw (C) and
removing set screw (D).
5. Remove upper flex cable (E),
wipe clean, and apply a thin
coating of 15 ml (0.5 oz.) of
grease.
6. Install cable. Make sure that the
flex cable fully engages into the
clutch square drive socket.
7. Slide coupler on upper drive
shaft until fully seated, and
align set screw hole in coupling with hole in upper drive shaft.
8. Install and tighten set screw (D), and tighten clamping screw (C).
C
D
E
C
D
PAS-2620 TROUBLESHOOTING
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TROUBLESHOOTING
ENGINE PROBLEM TROUBLESHOOTING CHART
Problem Check Status Cause Remedy
Engine
starts
hard
or
Engine
does not
start
Fuel at
carburetor
No fuel at
carburetor
Fuel strainer or
fuel line
obstructed
Clean or replace
See your Echo
dealer
Fuel at
cylinder
No fuel at
cylinder
Carburetor
See your Echo
dealer
Muffler wet
with fuel
Fuel mixture
too rich
OPEN choke
Clean or replace
air filter
Adjust carburetor
See your Echo
dealer
Spark at
end of plug
wire
No spark
Stop switch
OFF - Electrical
problem - Inter-
lock switch
Turn switch to ON
See your Echo
dealer
Spark at
plug
No spark
Incorrect gap -
Covered with
carbon - Fouled
with fuel - Plug
defective
Adjust to 0.65mm
(0.026 in.)
Clean or replace
plug
Engine
runs, but
dies
or
Engine
does not
acceler-
ate
properly
Air filter Air filter dirty Normal wear Clean or replace
Fuel filter Fuel filter dirty
Contaminants
or residue in
fuel
Replace filter or
replace fuel
Fuel vent
Fuel vent
plugged
Contaminated
fuel
Clean or replace
Spark plug
Plug dirty or
worn
Normal wear
Clean and adjust
or replace
Carburetor
Improper
adjustment
Vibration Adjust
Cooling
system
Cooling
system dirty
or plugged
Extended oper-
ation in dirty or
dusty locations
Clean
Spark arres-
tor screen
Spark arres-
tor screen
plugged
Normal wear Replace
STORAGE PAS-2620
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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.
STORAGE
During operation the muffler or catalytic muffler and surround-
ing cover become hot. Always keep exhaust area clear of flam-
mable 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 fol-
lowing:
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.
Engine
does not
crank
N/A N/A
Internal engine
problem
See your Echo
dealer
ENGINE PROBLEM TROUBLESHOOTING CHART
Problem Check Status Cause Remedy
PAS-2620 SPECIFICATIONS
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7. Allow engine to cool then remove the spark plug and 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.
SPECIFICATIONS
MODEL PAS-2620
Length 1035 mm (40.7 in.)
Width 273 mm (10.7 in.)
Height 258 mm (10.2 in.)
Weight (dry) 4.5 kg (9.9 lb.)
Engine Type
Air cooled, two-stroke, single cylinder gasoline
engine
Bore 34.0 mm (1.34 in.)
Stroke 28.0 mm (1.1 in.)
Displacement 25.4 cc (1.55 cu. in.)
Exhaust
Spark arrestor muffler or spark arrestor muffler
with catalyst
Carburetor Diaphragm with purge pump
Ignition System
Flywheel magneto, capacitor discharge ignition
type
Spark Plug NGK CMR7H - Gap 0.65 mm (0.026 in.)
Fuel Mixed (Gasoline and Two-stroke Oil)
Fuel/Oil Ratio
50:1 Power Blend X
TM
or ECHO Red Armor
®
ISO-L-EGD (ISO/CD 13738) and J.A.S.O.
M345- FD
, two-stroke, air-cooled engine oil.
Gasoline
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-20 or E-85.
Oil
Power Blend X
™
or ECHO Red Armor®
Premium Universal 2-Stroke Oil
Fuel Tank Capacity 0.61 l (20.6 US fl. oz.)
Starter System Automatic Rewind Starter
Clutch Centrifugal Type
SPECIFICATIONS PAS-2620
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Drive Shaft 6.35 mm (0.25 in.) flexible shaft
Rotating Direction Counterclockwise; viewed from top
Handle
Front
Rear
D-loop type with rubber anti-vibration grip
Plastic molded with rubber over-mold
Shoulder Harness Optional
Idle Speed 3000 RPM
Clutch Engagement Speed 4100 RPM
Wide Open Throttle Speed
(W.O.T.)
11,200 RPM
MODEL PAS-2620
PAS-2620 SPECIFICATIONS
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ECHO Optional Attachments
Use only ECHO attachments for these models. Serious injury
may result from the use of non approved attachment combina-
tions. 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 de-
vices, attachments or accessories which have not been tested
and approved by ECHO for use with these units.
RECOMMENDED OPTIONAL ATTACHMENTS
Articulating Hedge Trimmer 99944200596
Blower 99944200490
Brushcutter 99944200601
Curved Shaft Edger 99944200470
Curved Shaft Trimmer 99944200615
Mid Reach Hedge Trimmer 99944200640
Hedge Trimmer 99944200486
Pro Paddle™ 99944200620
Pro Sweep™ 99944200553
Power Pruner™ 99944200532
ProTorque Trimmer 99944200545
Speed-Feed® Trimmer 99944200540
Straight Shaft Edger 99944200475
Tiller/Cultivator 99944200513
Bed Redefiner 99944200465
3 Foot Extension* 99944200535
* For use with: Articulating Hedge Trimmer, Hedge Trimmer, and Power Pruner
Attachments ONLY.
PRODUCT REGISTRATION PAS-2620
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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 infor-
mation will never be sold or misused by ECHO, Inc. Registering your pur-
chase 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.
PAS-2620
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ECHO, INCORPORATED
400 Oakwood Road
Lake Zurich, IL 60047
www.echo-usa.com
U00515001001 - U00515999999
