X7502342203
© 08/20 ECHO Incorporated
Operator’s
Manual
HCA-2620/S
Articulating
Hedge Trimmer
The engine exhaust from this product contains chemicals
known to the State of California to cause cancer, birth defects,
or other reproductive harm.
Read and understand all provided literature before
use. Failure to do so could result in serious injury.
This product complies with CAN ICES-2/NMB-2.
TABLE OF CONTENTS HCA-2620/S
2 X7502342203
© 08/20 ECHO Incorporated
TABLE OF CONTENTS
Introduction ................................................................................................. 3
Servicing Information .................................................................................. 3
Parts/Serial Number............................................................................. 3
Service................................................................................................. 4
ECHO Consumer Product Support...................................................... 4
Product Registration ............................................................................ 4
Additional Literature............................................................................. 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.................................................................................................... 16
Assembly................................................................................................... 16
Support Handle ................................................................................. 16
Gear Housing Assembly / Drive Shaft ............................................... 17
Operation .................................................................................................. 17
Fuel.................................................................................................... 17
Adjusting Cutting Angle...................................................................... 20
Starting Cold Engine.......................................................................... 21
Starting Warm Engine........................................................................ 23
Stopping Engine ................................................................................ 25
Hedge Trimming................................................................................. 25
Maintenance ............................................................................................. 26
Skill Levels ......................................................................................... 27
Maintenance Intervals........................................................................ 27
Air Filter ............................................................................................. 28
Fuel Filter........................................................................................... 30
Spark Plug ......................................................................................... 31
Cooling System.................................................................................. 32
Exhaust System................................................................................. 33
Carburetor Adjustment....................................................................... 35
Lubrication ......................................................................................... 36
Blades................................................................................................ 38
Troubleshooting ........................................................................................ 40
Storage ..................................................................................................... 42
Long Term Storage (Over 30 Days)................................................... 42
Specifications............................................................................................ 43
Product Registration.................................................................................. 44
HCA-2620/S INTRODUCTION
X7502342203 3
© 08/20 ECHO Incorporated
INTRODUCTION
Specifications, descriptions and illustrative material in this literature are as
accurate as known at the time of publication, but are subject to change
without notice. Illustrations may include optional equipment and
accessories, and may not include all standard equipment.
Read and understand all provided literature.
Literature contains specifications and
information for safety, operation,
maintenance, storage, and assembly
specific to this product. Scan QR codes for
more information.
For additional literature, including safety manuals where applicable, or
questions regarding terms used in this manual, visit:
https://www.echo-usa.com/manuals
OR
https://www.shindaiwa-usa.com/manuals
SERVICING INFORMATION
Parts/Serial Number
Genuine ECHO Parts and
Assemblies for your ECHO products
are available only from an Authorized
ECHO Dealer. When you do need to
buy parts always have the Model
Number and Serial Number of the unit
with you. For future reference write
them in the space provided below.
Model No. _______________ Serial No. _______________
SAFETY HCA-2620/S
4 X7502342203
© 08/20 ECHO Incorporated
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 1-800-432-ECHO (3246) from 8:00 am to
5:00 pm (Central Standard Time) Monday through Friday. Before calling,
please know the model and serial number of your unit.
Product Registration
Register your ECHO equipment on-line at www.echo-usa.com or by filling
out the product registration sheet included in this manual. Registering your
product confirms warranty coverage and provides a direct link to ECHO if
we find it necessary to contact you.
Additional Literature
In addition to finding information online, information is available from your
Authorized ECHO Service Dealer, or by contacting ECHO Incorporated
400 Oakwood Road, Lake Zurich, IL 60047 1-800-432-ECHO (3246).
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.
HCA-2620/S SAFETY
X7502342203 5
© 08/20 ECHO Incorporated
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 might 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
H
T
L
SAFETY HCA-2620/S
6 X7502342203
© 08/20 ECHO Incorporated
Note: Not all symbols will appear on your unit.
Safety/Alert Emergency Stop
Hot Surface Fuel and Oil Mixture
Finger Severing
Do not operate closer
than 15 m (50 ft.) from
electrical hazard.
Avoid all power lines.
This unit is not insulated
against electrical
current.
Plan retreat path from
falling objects.
DO NOT Allow Flames
or Sparks Near Fuel
Ignition ON / OFF
DO NOT Smoke Near
Fuel
Purge Bulb
Choke Control “RUN”
Position (Choke Open)
Choke Control “COLD
START” Position (Choke
Closed)
Wear Slip Resistant
Footwear
Chain Lubrication
Do not operate closer
than 15 m (50 ft.) from
electrical hazards.
Keep bystanders at least
15 m (50 ft.) away.
Symbol Description Symbol Description
HCA-2620/S SAFETY
X7502342203 7
© 08/20 ECHO Incorporated
Personal Condition and Safety Equipment
Cancer and Reproductive Harm
www.P65Warnings.ca.gov
The muffler or catalytic muffler and surrounding cover
may become extremely hot. Always keep clear of
exhaust and muffler area, otherwise serious personal
injury might occur.
Users of this product risk injury to themselves and others if the
unit is used improperly and/or safety precautions are not
followed. Proper clothing and safety gear must be worn when
operating unit.
SAFETY HCA-2620/S
8 X7502342203
© 08/20 ECHO Incorporated
Physical Condition
Your judgment and physical dexterity may not be good:
• If you are tired or sick
• If you are taking medication
• If you have taken alcohol or drugs
Operate unit only if you are physically and mentally well.
Eye Protection
◆ Eye protection that meets ANSI Z87.1 or CE requirements
must be worn whenever you operate the unit.
◆ For additional safety, a full-face shield can 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 personal protective equipment 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.
HCA-2620/S SAFETY
X7502342203 9
© 08/20 ECHO Incorporated
• 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 WITH BARE FEET.
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 can 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 can result in injury.
Read and follow all safety and operation instructions to
minimize risk of injury. Failure to follow instructions can 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.
SAFETY HCA-2620/S
10 X7502342203
© 08/20 ECHO Incorporated
• 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.
• 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.
HCA-2620/S SAFETY
X7502342203 11
© 08/20 ECHO Incorporated
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 can 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.
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
• Keep exhaust area clear of flammable debris.
Avoid contact during and immediately after
operation.
Never perform blade maintenance procedures while engine is
running.
SAFETY HCA-2620/S
12 X7502342203
© 08/20 ECHO Incorporated
Equipment
Use only ECHO attachments. Serious injury may result from the
use of a non-approved attachment combination. ECHO,
INCORPORATED. will not be responsible for the failure of
cutting devices, attachments or accessories which have not
been tested and approved by ECHO, INCORPORATED. Read
and comply with all safety instructions listed in this manual and
safety manual.
◆ Check unit for loose or missing nuts, bolts, and screws.
Tighten and/or replace as needed.
◆ Check that the cutting attachment is firmly attached and in
safe operating condition. Dull, loose or damaged blades
should not be used.
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.
HCA-2620/S EMISSION CONTROL
X7502342203 13
© 08/20 ECHO Incorporated
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 and fuel
feed lines.
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.
DESCRIPTION HCA-2620/S
14 X7502342203
© 08/20 ECHO Incorporated
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. Safety label is
for example only. Your label my appear slightly different.
DANGER
STAND CLEAR
MINIMUM
50 FT.
12
14
13
15
16
17
18
19
20
21
HCA-2620
HCA-2620S
1
1
2
2
3
3
4
5
5
6
6
7
7
8
9
9
10
8
10
11
4
HCA-2620/S DESCRIPTION
X7502342203 15
© 08/20 ECHO Incorporated
1. Power Head
2. Throttle Handle - For Right Hand
3. Throttle Trigger Lockout
4. Stop Switch
5. Blades
6. Gear Case
7. Blade Adjustment Handle
8. Support Handle - For Left Hand
9. Drive Shaft Assembly
10. Throttle Trigger
11. Blade Cover
12. Spark Plug
13. Top Guard
14. Spark Arrestor Muffler Or Spark Arrestor Muffler With Catalyst
15. Fuel Tank
16. Recoil Starter / Handle
17. Fuel Tank Cap
18. Purge Bulb
19. Air Cleaner
20. Choke
21. Shoulder Harness (for use with HCA-2620 only)
CONTENTS HCA-2620/S
16 X7502342203
© 08/20 ECHO Incorporated
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.
ASSEMBLY
Support Handle
For HCA-2620S only:
Label (A) shows minimum spacing
for support handle location.
Position support handle in
comfortable operating position and
tighten screws.
1 Power Head / Drive Shaft Assembly
1 Gear Case Assembly
1 Operator's Manual
1 Warranty Statement
1 Shoulder Harness (included only with the HCA-2620)
1 Blade Cover
15 M - 50 FT
A
HCA-2620/S OPERATION
X7502342203 17
© 08/20 ECHO Incorporated
Gear Housing Assembly / Drive Shaft
Hedge Trimmer Blades are very sharp. Wear gloves to protect
hands.
1. Remove locating bolt (A) and
loosen clamping bolt (B).
2. Remove vinyl cap from drive
shaft.
3. Slide Gear Housing Assembly
onto Drive Shaft. Be certain the
Flex Drive Shaft engages the
hole in Driver Gear.
4. Align locating hole in gear
housing with locator hole in
drive shaft.
5. Install locating bolt (A). Tighten
clamping bolt (B).
OPERATION
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 can cause performance
problems, loss of power, overheating, fuel vapor lock, and
unintended machine operation, including, but not limited to,
improper clutch engagement. Diesel or alternative fuels can
also cause premature deterioration of fuel lines, gaskets,
carburetors and other engine components.
B
A
OPERATION HCA-2620/S
18 X7502342203
© 08/20 ECHO Incorporated
Fuel Requirements
Gasoline - Use fresh (purchased within the last 30 days from the pump) 89
Octane [R+M/2] (mid grade or higher) gasoline known to be good quality.
Gasoline may contain up to 10% Ethanol (grain alcohol) or 15% MTBE
(methyl tertiary-butyl ether). Gasoline containing methanol (wood alcohol) is
NOT approved. Use of ECHO branded fuel is recommended to extend
engine life in all air-cooled 2-stroke and 2/4-stroke hybrid engines.
Two Stroke Oil - A two-stroke engine oil, such as ECHO branded 2-stroke
oils, meeting ISO-L-EGD (ISO/CD 13738) and J.A.S.O. FD Standards must
be used. ECHO branded 2-stroke oils meet these standards. Engine
problems due to inadequate lubrication caused by failure to use an ISO-L-
EGD (ISO/CD 13738) and J.A.S.O. M345-FD certified oil will void the two-
stroke engine warranty.
2-Stroke engine oil contains petroleum distillates and other
additives that may be harmful if swallowed. Heated oil can
release vapors that can cause flash fire, or ignite with explosive
force. Read and follow the oil manufacturer’s instructions, and
observe all safety warnings and precautions for handling
flammable liquids. For more detailed safety and first aid
information, visit www.echo-usa.com for a copy of the Material
Safety Data Sheet.
◆ KEEP OUT OF REACH OF CHILDREN.
◆ If swallowed, do not induce vomiting. CALL PHYSICIAN OR
A POISON CONTROL CENTER IMMEDIATELY.
◆ WEAR SAFETY GLASSES when mixing or handling.
◆ AVOID repeated or prolonged skin contact.
◆ AVOID inhaling oil mists or vapors.
ECHO branded 2-stroke oils may be mixed at 50:1 ratio for
application in all ECHO engines sold in the past regardless of ratio
specified in those manuals.
Handling Fuel
Fuel is VERY flammable. Use extreme care when mixing, storing
or handling, or serious personal injury will result.
HCA-2620/S OPERATION
X7502342203 19
© 08/20 ECHO Incorporated
◆ Use an approved fuel container. Mark fuel containers as
containing 2-stroke mixture fuel.
◆ DO NOT smoke near fuel.
◆ DO NOT allow flames or sparks near fuel.
◆ Fuel tanks/cans may be under pressure. Always loosen
fuel caps slowly allowing pressure to equalize.
◆ NEVER refuel a unit when the engine is HOT or RUNNING!
◆ DO NOT fill fuel tanks indoors. ALWAYS fill fuel tanks
outdoors over bare ground.
◆ DO NOT overfill fuel tank. Wipe up spills immediately.
◆ Securely tighten fuel tank cap and close fuel container
after refueling.
◆ Inspect for fuel leakage. If fuel leakage is found, do not
start or operate unit until leakage is repaired.
◆ Move at least 3 m (10 ft.) from refueling location before
starting the engine.
Gasoline vapor is heavier than air, and can travel along the
ground to nearby sources of ignition such as electrical motors,
pilot lights, and hot or running engines. Vapors ignited by an
ignition source can flash back to the fuel container, resulting in
an explosion, fire, serious or fatal injuries, and extensive
property damage.
Mixing Instructions
Stored fuel ages. Do not mix more fuel than you expect to use in 30
days, 90 days when a fuel stabilizer is added.
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.
Fuel to Oil Mix – 50:1 Ratio
US Metric
Gas Oil Gas Oil
gal. fl.oz. L cc
12.65100
2 5.2 10 200
51325500
OPERATION HCA-2620/S
20 X7502342203
© 08/20 ECHO Incorporated
Spilled fuel is a leading cause of hydrocarbon emissions. Some
locations may require the use of automatic fuel shut-off containers to
reduce fuel spillage.
Storage - Fuel storage laws vary by locality. Contact your local government
for the laws affecting your area. As a precaution, store fuel in an approved,
airtight container. Store in a well-ventilated, unoccupied building, away from
sparks and flames.
• Empty the fuel tank prior to storing the unit. Return unused fuel to an
approved fuel storage container.
Stored two-stroke fuel can separate. ALWAYS shake fuel container
thoroughly before each use.
Used oil and gasoline, and soiled towels are hazardous waste
materials. Disposal laws vary by locality.
Adjusting Cutting Angle
Never adjust cutting assembly with engine running.
Hedge Trimmer blades are sharp. Always wear gloves when
adjusting cutting assembly.
DO NOT stand hedge trimmer on end when adjusting cutting
angle, otherwise serious injury may result.
HCA-2620/S OPERATION
X7502342203 21
© 08/20 ECHO Incorporated
1. Place unit on a flat surface with
blade cover (A) facing up.
Assure stop switch is in the
“STOP” position.
2. Hold blade adjustment handle
(B) and compress blade lock
levers (C) and (D) together.
Rotate blade to desired
position. Release levers to lock
blade.
Gear case assembly becomes HOT during use. Always grip
assembly at blade-adjustment handle when making cutting
angle adjustments, otherwise serious injury may result.
Always install the blade cover and place the cutter assembly in
the folded / locked position for storage or transportation.
Starting Cold Engine
Hedge Trimmer blades are very sharp. Touching them may lead
to severe personal injury. Avoid touching blades whenever
possible, and always wear gloves to protect hands.
Note: The blade cover is used for transportation and storage.
Remove blade cover before using the unit.
A
B
D
C
OPERATION HCA-2620/S
22 X7502342203
© 08/20 ECHO Incorporated
The attachment will operate immediately when the engine
starts, and could result in possible serious injury. Keep
movable parts of the attachment away from objects that could
become entangled or thrown, and surfaces that could cause
loss of control.
1. Stop Switch
Move stop switch (A) away from
the STOP position.
2. Choke
Move choke (B) to Cold Start
(closed) 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 four or five
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 (D) until
engine fires (or maximum 2-3
pulls).
A
B
C
D
HCA-2620/S OPERATION
X7502342203 23
© 08/20 ECHO Incorporated
5. Choke
After engine fires (or 2-3 pulls), move choke (B) to the Run ( )
position. Firmly grasp throttle handle and throttle trigger lockout with left
hand and fully depress throttle trigger to wide open position. Pull starter
handle 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 2-3
pulls, repeat instructions 2 - 5.
The blades must not move at idle, otherwise serious personal
injury may result. Periodic carburetor adjustment may be
necessary to assure blades do not move at idle. If blades move,
readjust carburetor according to “Carburetor Adjustment”
instructions in this manual or see your dealer.
6. Throttle Trigger
After engine warm-up, grip the 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 depress throttle trigger to wide open position.
The blades must not move at idle, otherwise serious personal
injury may result. Periodic carburetor adjustment may be
necessary to assure blades do not move at idle. If blades move,
readjust carburetor according to “Carburetor Adjustment”
instructions in this manual or see your dealer.
OPERATION HCA-2620/S
24 X7502342203
© 08/20 ECHO Incorporated
1. Stop Switch
Move stop switch (A) away from
the STOP position.
2. Purge Bulb
Pump purge bulb (C) until fuel is
visible and flows freely in the
clear fuel tank return line. Pump
bulb an additional four or five
times.
3. Recoil Starter
Lay the unit on a flat area and
keep movable attachment parts
clear of all obstacles. Firmly grip
throttle handle and throttle
trigger lockout with left hand.
Rapidly pull recoil starter handle
(D) until engine starts.
Note: If engine does not start
after 2-3 pulls, use Cold Start Procedure.
A
C
D
HCA-2620/S OPERATION
X7502342203 25
© 08/20 ECHO Incorporated
Stopping Engine
1. Throttle
Release throttle and allow
engine to return to idle before
shutting off engine.
2. Stop Switch
Move stop switch (A) to STOP
position.
If engine does not stop when stop switch is moved to STOP
position, close choke - COLD START position - to stall engine.
Have your dealer repair stop switch before using unit again.
Hedge Trimming
Shoulder Harness (if included)
1. Loosen harness clamp screw
(A).
2. Put harness on and attach it to
harness clamp ring (B).
3. Adjust harness for comfortable
operation.
4. Tighten harness clamp screw
(A).
Hedge Trimmer blades are very sharp. Touching them may lead
to severe personal injury. Avoid touching blades whenever
possible, and always wear gloves to protect hands.
A
A
B
MAINTENANCE HCA-2620/S
26 X7502342203
© 08/20 ECHO Incorporated
Never remove hands from unit when blades are moving. The
engine continues running even when the blades have stopped
due to an obstruction. If this occurs, stop the engine,
disconnect ignition cable and remove the obstruction.
1. Always grip throttle handle with right hand and support handle with left
hand.
2. Hold trimmer firmly and squeeze throttle trigger to accelerate engine.
3. Tilt trimmer so cutting teeth are angled slightly toward the hedge or
shrub and proceed to cut.
Gear case becomes extremely hot during use. Wear gloves to
protect hands whenever handling gear case. Otherwise serious
personal injury may result.
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.
Operating a poorly maintained unit can result in serious injuries
to operator or bystanders. Always follow all maintenance
instructions as written, otherwise serious personal injury can
result.
HCA-2620/S MAINTENANCE
X7502342203 27
© 08/20 ECHO Incorporated
Your unit is designed to provide many hours of trouble free service. Regular
scheduled maintenance will help your unit achieve that goal. If you are
unsure or are not equipped with the necessary tools, we recommend that
you take your unit to a Servicing Dealer for maintenance. To help you
decide whether you want to DO-IT-YOURSELF or have the Dealer do it,
each maintenance task has been graded. If the task is not listed, see your
Dealer for repairs.
The use of emission control components other than those specifically
designed for this unit is a violation of federal law.
Skill Levels
Level 1 = Easy to do. Common tools may be required.
Level 2 = Moderate difficulty. Some specialized tools may be required.
Level 3 = See your dealer.
Click HERE or go to http://www.echo-usa.com/products/maintenance-kit
or
HERE https://www.shindaiwa-usa.com/you-can.aspx
For information about 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 Inspect
3
1
Cooling System Inspect/Clean 2
Recoil Starter Rope Inspect/Clean * 1
Screws/Nuts/Bolts Inspect/Tighten/Replace * 1
Blades Inspect/Clean
2
1
Every Refuel
Fuel System Inspect
3
1
MAINTENANCE HCA-2620/S
28 X7502342203
© 08/20 ECHO Incorporated
IMPORTANT NOTE - Time intervals shown are maximum. Actual use and
your experience will determine the frequency of required maintenance.
MAINTENANCE PROCEDURE NOTES:
1
Apply lithium based grease every 25 hours of use.
2
Inspect blade and clean and sharpen as needed. Lubricate blades
periodically during use.
3
Low evaporative fuel tanks DO NOT require regular maintenance to
maintain emission integrity.
* Replacement is recommended based on the finding of damage or wear
during inspection.
Air Filter
Level 1
Parts Required: Tune Up Kit.
1. Close choke (COLD START position). This prevents dirt from entering
the carburetor throat when the air filter is removed. Brush accumulated
dirt from air cleaner area.
2. Remove air filter cover. Brush dirt from inside cover.
3 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
Gear Housing
Grease
1
2
Yearly
Fuel Filter Inspect/Replace * 1
Fuel Cap Gasket Replace * 1
COMPONENT/SYSTEM
MAINTENANCE
PROCEDURE
REQ’D
SKILL
LEVEL
HCA-2620/S MAINTENANCE
X7502342203 29
© 08/20 ECHO Incorporated
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 (C) 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.
A
B
C
MAINTENANCE HCA-2620/S
30 X7502342203
© 08/20 ECHO Incorporated
Assure air filter is assembled
with pleats oriented vertically.
Fuel Filter
Level 1.
Fuel is VERY flammable. Use extreme care when mixing, storing
or handling, or serious personal injury may result.
Do not damage fuel line while removing Fuel Filter from tank.
1. Use a clean rag to remove loose dirt from around fuel cap and empty
fuel tank.
2. Pull fuel filter out through gas
port, and inspect fuel filter.
3. When the fuel filter is dirty,
replace it as follows:
a. Do not remove the wire coil
clamp to remove the fuel
filter. Pinch the fuel filter
with the fingers on one
hand and the fuel line with
the other hand. Pull and
twist slightly to separate.
b. Install the new fuel filter
with the reverse action.
Parts Required: Tune Up Kit.
HCA-2620/S MAINTENANCE
X7502342203 31
© 08/20 ECHO Incorporated
c. When the inside of the fuel tank is dirty, rinse the tank out with
gasoline to clean it.
Note: Federal EPA regulations require all model year 2012 and
later gasoline powered engines produced for sale in the
United States to be equipped with a special low permeation
fuel supply hose between the carburetor and fuel tank. When
servicing model year 2012 and later equipment, only fuel
supply hoses certified by EPA can be used to replace the
original equipment supply hose. Fines up to $37,500 may be
enforced for using an un-certified replacement part.
Spark Plug
Level 2.
Parts Required: Tune Up Kit.
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
bending outer electrode.
4. Tighten spark plug to 102-153 kgf•cm (89-133 in•lbf).
0.65 mm (0.026 in.)
MAINTENANCE HCA-2620/S
32 X7502342203
© 08/20 ECHO Incorporated
Cooling System
Level 2.
To maintain proper engine
operating temperatures, cooling
air must pass freely through the
cylinder fin area. This flow of air
carries combustion heat away
from the engine.
Overheating and engine seizure can
occur when:
• Air intakes are blocked,
preventing cooling air from
reaching the cylinder.
• Dust and grass build up on the outside of the cylinder. This build up
insulates the engine and prevents the heat from leaving.
Removal of cooling passage blockages or cleaning of cooling fins is
considered “Normal Maintenance”. Any failure attributed to lack of
maintenance is not covered by the warranty.
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.
A
B
HCA-2620/S MAINTENANCE
X7502342203 33
© 08/20 ECHO Incorporated
4. Use brush to remove dirt from
the cylinder fins.
5. Remove the air filter cover.
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.
Parts Required: Spark Arrestor Screen, Gasket
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.
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 element inside muffler.
6. Replace screen if it is cracked, plugged, or has holes burned through.
7. Assemble components in reverse order.
C
A
B
C
D
MAINTENANCE HCA-2620/S
34 X7502342203
© 08/20 ECHO Incorporated
Exhaust Port Cleaning
Level 2.
Parts Required: Heat Shield (as needed)
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
cylinder exhaust port (C).
Never use a metal tool to scrape carbon from the exhaust port. Do
not scratch the cylinder or piston when cleaning the exhaust port. Do
not allow carbon particles to enter the cylinder.
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.
A
C
C
B
HCA-2620/S MAINTENANCE
X7502342203 35
© 08/20 ECHO Incorporated
Carburetor Adjustment
Level 2.
When carburetor adjustment is completed, the cutting
attachment 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 and
durability performance up to 330 m (1100 ft.) above sea level (ASL) (96.0
kPa). To maintain proper engine operation above 330 m (1100 ft.) ASL the
carburetor may
need to be adjusted by an authorized service dealer.
If the engine is adjusted for operation above 330 m (1100 ft.) ASL, the
carburetor must be re-adjusted when operating the engine below
330 m (1100 ft.) ASL, otherwise severe engine damage may result.
Note: Every unit is run at the factory and the carburetor is set in
compliance with emission regulations. Carburetor
adjustments, other than idle speed, must be performed by an
authorized dealer.
◆ The cutting attachment may be moving during carburetor
adjustments.
◆ Wear your protective equipment and observe all safety
instructions.
◆ For units equipped with a clutch, be sure the cutting
attachment stops moving when the engine idles.
◆ When the unit is turned off, make sure the cutting
attachment has stopped before the unit is set down.
MAINTENANCE HCA-2620/S
36 X7502342203
© 08/20 ECHO Incorporated
1. Check idle speed and reset if
necessary. If a tachometer is
available, idle speed screw (A)
should be set to the
specifications found on
“Specifications” page of this
manual. Turn idle screw (A)
clockwise to increase idle
speed; counterclockwise to
decrease idle speed.
Lubrication
Blades
Level 1.
Hedge Trimmer blades are very sharp. Touching them may lead
to severe personal injury. Avoid touching blades whenever
possible, and always wear gloves to protect hands.
1. Brush loose debris from blade
and coat both sides of blade
with the 50-50 cleaning mixture.
2. Allow cleaning mixture to soften
the remaining gummy residue
then wipe it from the blade.
3. Apply clean oil to the entire
length of the blade. Be certain
the blade bolts are lubricated.
4. Wipe excess oil from the blade before putting the unit back in service.
Parts Required: 20W Engine Oil (blade lubrication), 50-50 mixture of
kerosene and 20W oil (blade cleaning).
A
A
HCA-2620/S MAINTENANCE
X7502342203 37
© 08/20 ECHO Incorporated
Gear Case
Level 1.
1. Clean dirt from the grease
fitting (A).
2. Carefully pump grease into
fitting (A). DO NOT force
grease. Too much pressure will
force grease past seals and
cause damage. Apply 1 - 2
pumps of grease every 15 - 25
hours of operation.
3. Wipe excess grease from
around grease fitting.
Drive Shaft Assembly
Level 1.
Hedge Trimmer blades are very sharp. Touching them may lead
to severe personal injury. Avoid touching blades whenever
possible, and always wear gloves to protect hands.
1. Remove gear housing locating
screw (A) and loosen clamping
screw (B). Remove the gear
housing assembly from the
drive shaft housing.
Parts Required: A grease gun with lithium based grease.
Parts Required: Lithium based grease.
SHC
HCA
A
A
A
SHC
HCA
A
A
B
B
MAINTENANCE HCA-2620/S
38 X7502342203
© 08/20 ECHO Incorporated
2. Pull the drive shaft (C) from the
housing, wipe clean, then apply
15 ml (0.5 oz.) of grease.
3. Slide the drive shaft back in the
drive housing being careful not
to get dirt on the flex shaft.
4. Install the gear housing assembly.
Blades
Hedge trimmer blades are very sharp, touching them may lead
to severe personal injury. Use long hex wrenches and sockets
with extensions when tightening blade screws and blade lock
nuts to keep hands at a safe distance from sharp blades.
Blades should only be removed and reinstalled by an authorized
servicing dealer, otherwise premature wear or internal damage may
occur.
Sharpening
Level 2.
If a power grinder is used DO NOT allow blade to over heat.
1. Move stop switch to STOP
position.
2. Disconnect spark plug wire.
3. Remove blade guard.
4. Slide blades to allow file
clearance using slots (A) on
bottom of blade. Do not pry
against cutting edges.
5. File each edge carefully. Follow
the original shape of the blade.
6. Install blade guard.
C
A
HCA-2620/S MAINTENANCE
X7502342203 39
© 08/20 ECHO Incorporated
Use new lock nuts each time blade guard is installed. See dealer for
correct nuts.
7. Lubricate blades (see “Lubrication”).
8. Connect spark plug wire.
Adjustment
Level 2.
Locking ability of hedge trimmer blade lock nuts will diminish each
time they are removed. Replace if turning resistance is not felt when
installing lock nuts.
1. Tighten blade screws securely.
2. Hold blade screws (A) to
prevent turning, and tighten
lock nuts (B).
A
B
TROUBLESHOOTING HCA-2620/S
40 X7502342203
© 08/20 ECHO Incorporated
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 dealer
Fuel at
cylinder
No fuel at
cylinder
Carburetor See your dealer
Muffler wet
with fuel
Fuel mixture too
rich
OPEN choke
Clean or replace
air filter
Adjust carburetor
See your dealer
Spark at
end of plug
wire
No spark
STOP switch
OFF - Electrical
problem -
Interlock switch
Turn switch to
ON
See your dealer
Spark at
plug
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
accelerate
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
HCA-2620/S TROUBLESHOOTING
X7502342203 41
© 08/20 ECHO Incorporated
Fuel vapors are extremely flammable and can cause fire and/or
explosion. Never test for ignition spark by grounding spark plug
near cylinder plug hole, otherwise serious personal injury can
result
Engine
runs, but
dies
or
Engine
does not
accelerate
properly
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
operation in
dirty or dusty
locations
Clean
Spark
arrestor
screen
Spark
arrestor
screen
plugged
Normal wear Replace
Engine
does not
crank
N/A
Internal engine
problem
See your dealer
ENGINE PROBLEM TROUBLESHOOTING CHART
Problem Check Status Cause Remedy
STORAGE HCA-2620/S
42 X7502342203
© 08/20 ECHO Incorporated
STORAGE
The muffler and surrounding cover become hot during
operation. Always keep exhaust area clear of flammable debris
during transportation or when storing, otherwise serious
property damage or personal injury may result.
Hedge Trimmer blades are very sharp. Touching them may lead
to severe personal injury. Avoid touching blades whenever
possible, and always wear gloves to protect hands.
Do not store in enclosure where fuel fumes may accumulate or
reach an open flame or spark, otherwise serious personal injury
may result.
Always store and transport hedge trimmers in a stable, horizontal
position. Support gear case and cutting blades to prevent excessive
flexing, which may cause damage to these components. Always
install blade cover when transporting or storing unit.
Long Term Storage (Over 30 Days)
Do not store your unit for a prolonged period of time (30 days or longer)
without performing protective storage maintenance which includes the
following:
1. Store unit in a dry, dust free place, out of the reach of children.
2. Place the stop switch in the “STOP” position.
3. Remove accumulation of grease, oil, dirt and debris from exterior of
unit.
4. Perform all periodic lubrication and services that are required.
5. Apply clean oil to the entire length of the blade. Be certain the blade
bolts are lubricated.
6. Install blade cover on blades.
7. Tighten all the screws and nuts.
HCA-2620/S SPECIFICATIONS
X7502342203 43
© 08/20 ECHO Incorporated
8. 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.
9. Allow engine to cool. Remove the spark plug lead from the spark plug.
Remove the spark plug. Pour 7 cc (0.25 oz.) of fresh, clean, two-stroke
engine oil into the cylinder through the spark plug hole.
a. Place a clean cloth over the spark plug hole.
b. Pull the recoil starter handle 2-3 times to distribute the oil inside the
engine.
c. Observe the piston location through the spark plug hole. Pull the
recoil handle slowly until the piston reaches the top of its travel and
leave it there.
10. Install the spark plug. Connect the spark plug lead to the spark plug.
SPECIFICATIONS
MODEL HCA-2620
HCA-2620S
Length 2440 mm (96.1 in.)
1,784 mm (70.2 in.)
Width 273 mm (10.7 in.)
Height 260 mm (10.2 in.)
Weight (dry) 6.5 kg (14.3 lb.)
6.2 kg (13.6 lb.)
Engine Type
Air cooled, two-stroke, single cylinder gasoline
engine
Bore 34.0 mm (1.34 in.)
Stroke 28.0 mm (1.10 in.)
Displacement 25.4 cc (1.55 cu. in.)
Exhaust
Spark arrestor muffler or spark arrestor muffler
with catalyst
Carburetor Diaphragm w/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
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-15 or E-85.
PRODUCT REGISTRATION HCA-2620/S
44 X7502342203
© 08/20 ECHO Incorporated
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, Incorporated.
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 Incorporated, Product Registration, PO Box 1139, Lake Zurich
IL 60047.
Oil
50:1 oil ISO-L-EGD (ISO/CD 13738) JASO M345-
FD two stroke, certified air cooled engine oil such
as ECHO PowerBlend® Gold or ECHO Red
Armor® oil.
Fuel Tank Capacity 0.61 L (20.6 US fl. oz.)
Starter System Automatic Recoil Starter
Clutch Centrifugal Type
Gear Case Ratio 4.6:1
Cutter Double Reciprocating Blade, Double Edge
Length 536 mm (21.1 in.)
Pitch 35 mm (1.1 in.)
Height 21 mm (.083 in)
Maximum Diameter Cut:
Soft Material 25.4 mm (1 in.)
Woody Material 13 mm (0.5 in.)
Cutting Angle
Adjustment
-90
o
to +45
o
(135
o
total)
Idle Speed 3,000 RPM
Clutch Engagement
Speed
4,300 RPM
Wide Open Throttle
Speed (W.O.T.)
11,500 RPM
MODEL HCA-2620
HCA-2620S
HCA-2620/S PRODUCT REGISTRATION
X7502342203 45
© 08/20 ECHO Incorporated
NOTES HCA-2620/S
46 X7502342203
© 08/20 ECHO Incorporated
NOTES
HCA-2620/S NOTES
X7502342203 47
© 08/20 ECHO Incorporated
