x7722271404 / x772000164
Operator’s
Manual
HC-2020
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.
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TABLE OF CONTENTS HC-2020
TABLE OF CONTENTS
Table of Contents ........................................................................................ 2
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.................................................................................................... 15
Assembly................................................................................................... 15
Operation .................................................................................................. 16
Fuel.................................................................................................... 17
Starting Cold Engine.......................................................................... 20
Starting Warm Engine........................................................................ 21
Stopping Engine ................................................................................ 23
Hedge Trimming................................................................................. 23
Maintenance ............................................................................................. 24
Skill Levels......................................................................................... 25
Maintenance Intervals........................................................................ 25
Air Filter ............................................................................................. 26
Fuel Filter........................................................................................... 27
Spark Plug ......................................................................................... 28
Cooling System.................................................................................. 29
Exhaust System................................................................................. 30
Carburetor Adjustment....................................................................... 31
Lubrication ......................................................................................... 33
Blades................................................................................................ 34
Troubleshooting......................................................................................... 35
Storage...................................................................................................... 37
Long Term Storage (Over 30 Days)................................................... 37
Specifications............................................................................................ 38
Product Registration.................................................................................. 40
Notes......................................................................................................... 42
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HC-2020 INTRODUCTION
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. _______________
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SAFETY HC-2020
Service
Service of this product during the warranty period must be performed by an
Authorized ECHO Service Dealer. For the name and address of the
Authorized ECHO Service Dealer nearest you, ask your retailer or call:
1-800-432-ECHO (3246). Dealer information is also available on our Web
Site www.echo-usa.com. When presenting your unit for Warranty service/
repairs, proof of purchase is required.
ECHO Consumer Product Support
If you require assistance or have questions concerning the application,
operation, or maintenance of this product, call the ECHO Consumer
Product Support Department at 1-800-673-1558 from 8:00 am to 5:00 pm
(Central Standard Time) Monday through Friday. Before calling, please
know the model and serial number of your unit.
Product Registration
Register your ECHO equipment on-line at www.echo-usa.com or by filling
out the product registration sheet included in this manual. Registering your
product confirms warranty coverage and provides a direct link to ECHO if
we find it necessary to contact you.
Additional Literature
In addition to finding information online, information is available from your
Authorized ECHO Service Dealer, or by contacting ECHO Inc., 400
Oakwood Road, Lake Zurich, IL 60047 (800-673-1558).
Safety Videos are available from your Authorized ECHO Service Dealer. A
$5.00 shipping charge is required for each video.
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.
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HC-2020 SAFETY
The safety alert symbol accompanied by the word “DANGER”
calls attention to an act or condition which WILL lead to serious
personal injury or death if not avoided.
The safety alert symbol accompanied by the word “WARNING”
calls attention to an act or condition which CAN lead to serious
personal injury or death if not avoided.
The safety alert symbol accompanied by the word “CAUTION”
calls attention to an act or condition which may lead to minor or
moderate personal injury if not avoided.
The enclosed message provides information necessary for the
protection of the unit.
Note: This enclosed message provides tips for use, care and
maintenance of the unit.
CIRCLE AND SLASH SYMBOL
This symbol means the specific action shown is prohibited.
Ignoring these prohibitions can result in serious or fatal injury.
International Symbols
Symbol Description Symbol Description
Read and
understand
Owners Manual
Wear eye, ear and
head protection
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Fuel and oil mixture
Finger severing
SAFETY HC-2020
L
H
T
Symbol Description Symbol Description
Emergency Stop Hot Surface
Wear hand and
foot protection.
Use two handed
Choke Control
“COLD START”
Position (Choke
Closed)
Choke Control
“RUN” Position
(Choke Open)
Carburetor
Adjustment - Low
speed mixture
Safety/Alert
Avoid all power
lines. This unit is
not insulated
against electrical
current.
Plan retreat path
from falling objects
DO NOT smoke near
fuel
Ignition
ON / OFF
Do not operate
without guards in
place.
Carburetor
Adjustment - High
speed mixture
Carburetor
Adjustment - Idle
speed
Do not operate
closer than 15 M (50
ft.) from electrical
hazard.
Primer Bulb
DO NOT allow
flames or sparks
near fuel
Keep bystanders at least
4.5 meters (15 ft.) away.
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Wear slip resistant
footwear
© 7/2018 ECHO Inc.
HC-2020 SAFETY
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 may occur.
Users of this product risk injury to themselves and others if the
unit is used improperly and/or safety precautions are not
followed. Proper clothing and safety gear must be worn when
operating unit.
Physical Condition
Your judgment and physical dexterity may not be good:
• If you are tired or sick
• If you are taking medication
• If you have taken alcohol or drugs
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SAFETY HC-2020
Operate unit only if you are physically and mentally well.
Eye Protection
◆ Eye protection that meets ANSI Z87.1 or CE requirements
must be worn whenever you operate the unit.
◆ For additional safety, a full-face shield may be worn over
safety glasses or goggles to provide protection from sharp
branches or flying debris.
Hand Protection
Wear sturdy, no-slip, rubber work gloves to improve your grip on the
handles. Gloves also provide protection against cuts and scratches, cold
environments, and reduce the transmission of machine vibration to your
hands.
Hearing/Ear Protection
ECHO recommends wearing hearing protection whenever unit is used.
Breathing Protection
Operators who are sensitive to dust or other common airborne allergens
may need to wear a dust mask to prevent inhaling these materials while
operating unit. Dust masks can provide protection against dust, plant debris,
and other plant matter such as pollen. Make sure the mask does not impair
your vision, and replace the mask as needed to prevent air restrictions.
Proper Clothing
Wear snug-fitting, durable clothing:
• Pants should have long legs, shirts should have long sleeves.
• DO NOT WEAR SHORTS.
• DO NOT WEAR TIES, SCARVES, JEWELRY, or clothing with loose or
hanging items that could become entangled in moving parts or
surrounding growth.
• Keep clothing buttoned or zipped, and keep shirt tails tucked in.
Wear sturdy work shoes with nonskid rubber soles:
• DO NOT WEAR OPEN TOED SHOES.
• DO NOT OPERATE UNIT BAREFOOTED.
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HC-2020 SAFETY
Keep long hair away from engine and air intake. Retain hair with cap or net.
Heavy protective clothing can increase operator fatigue, which may lead to
heat stroke. Schedule heavy work for early morning or late afternoon hours
when temperatures are cooler.
The components of this machine generate an electromagnetic
field during operation, which may interfere with some
pacemakers. To reduce the risk of serious or fatal injury,
persons with pacemakers should consult with their physician
and the pacemaker manufacturer before operating this
machine. In the absence of such information, ECHO does not
recommend the use of this machine by anyone who has a
pacemaker.
Extended Operation / Extreme Conditions
Prolonged exposure to cold and/or vibration may result in
injury. Read and follow all safety and operation instructions to
minimize risk of injury. Failure to follow instructions may result
in painful wrist/hand/arm injuries.
It is believed that a condition called Raynaud’s Phenomenon, which affects
the fingers of certain individuals, may be brought about by exposure to
vibration and cold. Exposure to vibration and cold may cause tingling and
burning sensations, followed by loss of color and numbness in the fingers.
The following precautions are strongly recommended, because the
minimum exposure, which might trigger the ailment, is unknown.
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SAFETY HC-2020
• Keep your body warm, especially
the head, neck, feet, ankles,
hands, and wrists.
• Maintain good blood circulation by
performing vigorous arm
exercises during frequent work
breaks, and also by not smoking.
• Limit the hours of operation. Try to
fill each day with jobs where
operating the unit or other handheld 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.
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HC-2020 SAFETY
• Do exercises to strengthen the hand and arm muscles.
• Immediately stop using all power equipment and consult a doctor if you
feel tingling, numbness, or pain in the fingers, hands, wrists, or arms. The
sooner RSI/CTS is diagnosed, the more likely permanent nerve and
muscle damage can be prevented.
All over head electrical conductors and communications wires
can have electricity flow with high voltages. This unit is not
insulated against electrical current. Never touch wires directly
or indirectly, otherwise serious injury or death may result.
Do not operate this product indoors or in inadequately
ventilated areas. Engine exhaust contains poisonous emissions
and can cause serious injury or death.
Read the Manuals
• Provide all users of this equipment with the Operator’s Manual for
instructions on Safe Operation.
Clear the Work Area
• Spectators and fellow workers must be warned, and children and animals
prevented from coming nearer than 15 m (50 ft.) while the unit is in use.
Keep a Firm Grip
• Always hold throttle handle and support handle with thumbs and fingers
tightly encircling the handles.
Keep a Solid Stance
• Maintain footing and balance at all times. Do not stand
on slippery, uneven or unstable surfaces. Do not work
in odd positions or on ladders. Do not over reach.
Avoid Hot Surfaces
• Keep exhaust area clear of flammable debris.
Avoid contact during and immediately after
operation.
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SAFETY HC-2020
Never perform blade maintenance procedures while engine is
running.
Equipment
Use only ECHO attachments. Serious injury may result from the
use of a non-approved attachment combination. ECHO, INC. will
not be responsible for the failure of cutting devices,
attachments or accessories which have not been tested and
approved by ECHO, INC. 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.
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HC-2020 EMISSION CONTROL
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 (3way catalyst). The fuel tank/fuel
line emission control system is EVAP (evaporative emissions). Evaporative
emissions for California models are only applicable to fuel tanks.
An Emission Control Label is
located on the engine. (This is an
EXAMPLE ONLY, information on
label varies by engine FAMILY).
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.
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DESCRIPTION HC-2020
4.5m (15ft)
1
2
3
4
5
6
7
8
10
11
12
13
14
9
15
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. The safety decal is
for example only. Your label may appear slightly different.
16
1. Support Handle - For Right Hand
2. Blades
3. Blade Guard
4. Spark Plug
5. Purge Bulb
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HC-2020 CONTENTS
6. Choke
7. Air Cleaner
8. Fuel Tank
9. Fuel Tank Cap
10. Throttle Handle - For Left Hand
11. Throttle Trigger Lockout
12. Throttle Trigger
13. Stop Switch
14. Recoil Starter Handle
15. Spark Arrestor Muffler Or Spark Arrestor Muffler With Catalyst
16. Blade Cover
CONTENTS
The ECHO product you purchased has been factory pre-assembled for your
convenience. Due to packaging restrictions, some assembly may be
necessary.
After opening the carton, check for damage. Immediately notify your retailer
or ECHO Dealer of damaged or missing parts. Use the contents list to check
for missing parts.
1 Hedge Trimmer Assembly
1 Operator’s Manual
1 Warranty Statement
1 Blade Cover
ASSEMBLY
This model is factory assembled.
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OPERATION HC-2020
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
position unit so that exhaust is directed away from your face
and body.
Operation of this equipment may create sparks that can start
fires around dry vegetation. This unit is equipped with a spark
arrestor to prevent discharge of hot particles from the engine.
Metal cutters can also create sparks if the cutter strikes rocks,
metal, or other hard objects. Contact local fire authorities for
laws or regulations regarding fire prevention requirements.
◆ Always maintain a direct, clear line of site to the unit and
the work being performed.
◆ Always be alert for changes in operation of unit.
◆ Always shut engine off before transporting unit to new
location.
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HC-2020 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 may cause
performance problems, loss of power, overheating, fuel vapor
lock, and unintended machine operation, including, but not
limited to, improper clutch engagement. Diesel or alternative
fuels may also cause premature deterioration of fuel lines,
gaskets, carburetors and other engine components.
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
93 octane, ethanol-free fuel premixed with ECHO Red Armor
50:1 ratio. Use of ECHO Red Armor
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
stroke engine warranty.
certified oil, such as ECHO brand 2-stroke oils, will void the two-
™
Fuel (Power Fuel™) is recommended
™
Fuel (Power Fuel™) is
™
engine oil at
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.
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OPERATION HC-2020
◆ AVOID repeated or prolonged skin contact
◆ AVOID inhaling oil mists or vapors.
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. 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.
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HC-2020 OPERATION
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
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
reduce 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 30
days, 90 days when a fuel stabilizer is added.
Stored two-stroke fuel may separate. ALWAYS shake fuel container
thoroughly before each use.
Used oil and gasoline, and soiled towels are hazardous waste
materials. Disposal laws vary by locality.
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OPERATION HC-2020
A
C
C
B
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.
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 4 or 5 times.
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HC-2020 OPERATION
D
B
E
F
4. Recoil Starter
Lay the unit on a flat, clear area.
Grip the support handle
securely with one hand, and pull
the recoil starter handle (D) until
engine fires (or 5 pulls
maximum).
5. Choke
After engine fires (or 5 pulls),
move choke (B) to the RUN ( )
(open) position. Restart engine
if necessary 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.
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 ECHO Dealer.
6. Throttle Trigger
After engine warm-up, grip the
throttle handle and support
handle. Depress the throttle
trigger lockout (E), and gradually
depress throttle trigger (F) 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.
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OPERATION HC-2020
A
C
C
D
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 ECHO Dealer.
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 4 or 5 times.
3. Recoil Starter
Place the unit on a flat, clear
area. Grip the support handle
securely with one hand, and pull
the recoil starter handle (D) until
engine starts.
Note: If engine does not start
after 5 pulls, use Cold
22 X7702245300
Start Procedure.
© 7/2018 ECHO Inc.
HC-2020 OPERATION
F
A
Stopping Engine
1. Throttle
Release throttle trigger (F) 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 ECHO dealer repair stop switch before using unit
again.
Hedge Trimming
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.
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MAINTENANCE HC-2020
1. Always grip support handle with right hand, and throttle 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.
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.
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.
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HC-2020 MAINTENANCE
Operating a poorly maintained unit can result in serious injuries
to operator or bystanders. Always follow all maintenance
instructions as written, otherwise serious personal injury may
result.
Your unit is designed to provide many hours of trouble free service. Regular
scheduled maintenance will help your unit achieve that goal. If you are
unsure or are not equipped with the necessary tools, we recommend that
you take your unit to a Servicing Dealer for maintenance. To help you decide
whether you want to DO-IT-YOURSELF or have the Dealer do it, each
maintenance task has been graded. If the task is not listed, see your Dealer
for repairs.
Skill Levels
Level 1 = Easy to do. Common tools may be required.
Level 2 = Moderate difficulty. Some specialized tools may be required.
Level 3 = See your dealer.
Click HERE or go to http://www.echo-usa.com/products/maintenance-kit
or
HERE https://www.shindaiwa-usa.com/you-can.aspx
For information about maintenance kits.
Maintenance Intervals
COMPONENT/SYSTEM
Daily or Before Use
Air Filter
Choke Shutter
Fuel System
Cooling System
Recoil Starter Rope
Screws/Nuts/Bolts
Blades Inspect/Clean
Every Refuel
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MAINTENANCE
PROCEDURE
Inspect/Clean*
Inspect
Inspect/Clean 2
Inspect/Clean*
Inspect/Tighten/Replace*
(3)
(2)
REQUIRED
SKILL LEVEL
1
1
MAINTENANCE HC-2020
COMPONENT/SYSTEM
Fuel System
Three Months
Air Filter
Fuel Filter
Fuel Cap Gasket
Spark Plug
Muffler Spark Arrestor
Cylinder Exhaust Port
Gear Housing
Yearly
Fuel Filter
Fuel Cap Gasket
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.
MAINTENANCE
PROCEDURE
Inspect
Replace*
Inspect*
Inspect/Clean/Replace*
Inspect/Clean/De-carbon
Grease
Inspect/Replace*
Replace*
(3)
(1)
REQUIRED
SKILL LEVEL
1
1
1
2
1
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
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HC-2020 MAINTENANCE
B
1. Close choke (B) (COLD START
[ ] position). This prevents
dirt from entering the carburetor
throat when the air filter is
removed. Brush accumulated
dirt from air cleaner area.
2. Remove air filter cover. Brush dirt from inside cover.
3. Replace filter if it is damaged, fuel soaked, very dirty, or the rubber sealing edges are deformed.
• Lightly brush debris from filter.
• Soak heavily soiled filters in
water/detergent solution to
loosen dirt, then brush lightly.
• Rinse with clean water and
allow to dry completely before
reuse.
4. Install air filter in air filter case.
5. Install air filter cover.
Fuel Filter
Level 1.
Parts Required: Tune-Up Kit
Fuel is VERY flammable. Use extreme care when mixing,
storing or handling, or serious personal injury may result.
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MAINTENANCE HC-2020
0.65 mm (0.026 in.)
1. Use a clean rag to remove loose dirt from around fuel cap and empty fuel tank.
2. Pull the fuel line and filter from the 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
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 BPM-8Y spark plug (BPMR-8Y in Canada) otherwise
severe engine damage may occur.
1. Remove spark plug and check for fouling, worn and rounded center electrode.
2. Clean the plug or replace with a new one. DO NOT sand blast to clean. Remaining sand will damage engine.
3. Adjust spark plug gap by bending outer electrode.
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HC-2020 MAINTENANCE
4. Tighten spark plug to 150-170 kgf • cm (130-150 in • lbf).
Cooling System
Level 2.
Parts Required: None if you are careful.
To maintain proper engine operating temperatures, cooling air must
pass freely through the cylinder fin area. This flow of air carries
combustion heat away from the engine.
Overheating and engine seizure can occur when:
• Air intakes are blocked, preventing cooling air from reaching the cylinder.
• Dust and grass build up on the outside of the cylinder. This build up
insulates the engine and prevents the heat from leaving.
Removal of cooling passage
blockages or cleaning of cooling
fins is considered “Normal
Maintenance.” Any failure
attributed to lack of maintenance
is not warranted.
1. Remove spark plug lead.
2. Remove muffler cover.
3. Remove starter cover.
4. Use brush (not included) to
remove dirt from the cylinder
fins.
DO NOT use a metal scraper to remove dirt from the cylinder fins.
5. Assemble components in reverse order.
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MAINTENANCE HC-2020
A
B
C
A
B
Exhaust System
Spark Arrestor Screen
Level 2.
Parts Required: Spark Arrestor Screen, Gasket
1. Remove spark plug lead.
2. Remove muffler cover.
3. Place piston at Top Dead Center (TDC) to prevent carbon/dirt from entering cylinder.
4. Remove exhaust guide (A), gasket (B), and screen (C) from muffler body.
5. Clean carbon deposits from muffler components.
Note: When cleaning carbon
deposits, 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.
Exhaust Port Cleaning
Level 2.
Parts Required: As needed: Heat Shield
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).
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HC-2020 MAINTENANCE
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.
3. Use a wood or plastic scraping tool (not included) to clean deposits from cylinder exhaust port.
4. Inspect heat shield, and replace if damaged.
5. Install heat shield, muffler, and eye plate.
6. Tighten muffler mounting bolts
(or nuts) to 90-110 kgf•cm (8095 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
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 these
instructions, or see your ECHO Dealer.
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.
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MAINTENANCE HC-2020
A
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 above 1,100 feet ASL the
carburetor may
If the engine is adjusted for operation above 1,100 feet ASL, the
carburetor must be re-adjusted when operating the engine below
1,100 feet ASL, otherwise severe engine damage may result.
Level 2.
Parts Required: None
Note: Every unit is run at the factory and the carburetor is set in
compliance with emission regulations. Carburetor
adjustments, other than idle speed, must be performed by an
authorized ECHO dealer.
1. Check idle speed and reset if
necessary. If a tachometer is
available, idle speed screw (A)
should be set to the
specifications found on
“Specifications” page of this
manual. Turn idle screw (A)
clockwise to increase idle
speed; counter clockwise to
decrease idle speed.
need to be adjusted by an authorized ECHO service dealer.
When carburetor adjustment is completed, the cutting
attachment should not move at idle, otherwise serious personal
injury may result.
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HC-2020 MAINTENANCE
A
Lubrication
Blades
Level 1.
Parts Required: 20W Engine Oil (blade lubrication), 50-50 mixture of
kerosene and 20W oil (blade cleaning)
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. Move stop switch to stop position.
2. Disconnect spark plug wire from spark plug.
3. Brush loose debris from blade and coat both sides of blade with the 50- 50 cleaning mixture.
4. Allow cleaning mixture to soften the remaining gummy residue then wipe it from the blade.
5. Apply clean oil to the entire length of the blade. Be certain the blade bolts are lubricated.
6. Wipe excess oil from the blade before putting the unit back in service.
Gear Box
Level 1.
Parts Required: Lithium Based Grease.
1. Clean dirt from the grease fitting (A).
2. Apply 1- 2 pumps of grease into fitting, DO NOT over fill. Leave room for the grease to expand during operation
3. Wipe excess grease from around grease fitting.
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MAINTENANCE HC-2020
A
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.
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.
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HC-2020 TROUBLESHOOTING
A A
B B
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).
TROUBLESHOOTING
Fuel vapors are extremely flammable and may cause fire and/or
explosion. Never test for ignition spark by grounding spark plug
near cylinder plug hole, otherwise serious personal injury may
result.
ENGINE PROBLEM TROUBLESHOOTING CHART
Problem Check Status Cause Remedy
Engine
starts
hard
or Engine
does not
start
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Fuel at
carburetor
No fuel at
carburetor
Fuel strainer or
fuel line
obstructed
Clean or replace
See your dealer
TROUBLESHOOTING HC-2020
ENGINE PROBLEM TROUBLESHOOTING CHART
Problem Check Status Cause Remedy
Engine
starts
hard
or
Engine
does not
start
Engine
runs, but
dies
or
Engine
does not
accelerate
properly
Engine
does not
crank
No fuel at
cylinder
Fuel at
cylinder
Spark at
end of plug
wire
Spark at
plug
Air filter Air filter dirty Normal wear Clean or replace
Fuel filter Fuel filter dirty
Fuel vent
Spark plug
Carburetor
Cooling
system
Spark arrestor screen
Muffler wet
with fuel
No spark
Fuel vent
plugged
Plug dirty or
worn
Improper
adjustment
Cooling
system dirty
or plugged
Spark arrestor screen
plugged
N/A
Carburetor See your dealer
OPEN choke
Fuel mixture
too rich
Stop switch
OFF - Electrical
problem - Interlock switch
Incorrect gap Covered with
carbon - Fouled
with fuel - Plug
defective
Contaminants
or residue in
fuel
Contaminated
fuel
Normal wear
Vibration Adjust
Extended operation in dirty or
dusty locations
Normal wear Replace
Internal engine
problem
Clean or replace
air filter
Adjust carburetor
See your dealer
Turn switch to ON
See your dealer
Adjust to 0.65mm
(0.026 in.)
Clean or replace
plug
Replace filter or
replace fuel
Clean or replace
Clean and adjust
or replace
Clean
See your dealer
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HC-2020 STORAGE
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.
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SPECIFICATIONS HC-2020
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 HC-2020
Length 1064 mm (41.9 in.)
Width 266 mm (10.5 in.)
Height 198 mm (7.8 in.)
Weight (dry) 4.5 kg (10 lb.)
Engine Type Air cooled, two-stroke, single cylinder gasoline
Bore 32.2 mm (1.27 in.)
Stroke 26.0 mm (1.02 in.)
Displacement 21.2 cc (1.29 cu. in.)
Exhaust Spark arrestor muffler or spark arrestor muffler
Carburetor Diaphragm w/purge pump
Ignition System Flywheel magneto, capacitor discharge ignition
Spark Plug NGK BPMR8Y (Gap 0.65 mm (0.026 in.)
Fuel Mixed (Gasoline and Two-stroke Oil)
Fuel/Oil Ratio
Gasoline Use 89 Octane unleaded. Do not use fuel
engine
with catalyst
type
®
50:1 Power Blend
ISO-L-EGD (ISO/CD 13738) and J.A.S.O.
M345- FD, two-stroke, air-cooled engine oil.
containing methyl alcohol, more than 10% ethyl
alcohol or 15% MTBE. Do not use alternative
fuels such as E-15 or E-85.
X or ECHO Red ArmorTM
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HC-2020 SPECIFICATIONS
MODEL HC-2020
Oil
Fuel Tank Capacity 0.39 lit. (13.2 US fl. oz.)
Starter System Automatic Recoil Starter
Clutch Centrifugal Type
Gear Case Ratio 5.88
Cutter Double Reciprocating Blade, Double Edge
Length 656mm (25.83in.)
Pitch 35 mm (1.38 in.)
Height 21mm (0.83 in.)
Maximum Diameter Cut:
Soft Material 25.4 mm (1 in.)
Woody Material 13 mm (1/2 in.)
Idle Speed 3,300 RPM
Clutch Engagement Speed 5,200 RPM
Wide Open Throttle Speed
(W.O.T.)
Power Blend
Premium Universal 2-Stroke Oil.
10,400 RPM
®X
or ECHO Red ArmorTM
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PRODUCT REGISTRATION HC-2020
PRODUCT REGISTRATION
Thank you for choosing ECHO Power Equipment
Please go to http://www.echo-usa.com/Warranty/Register-Your-ECHO to
register your new product on-line. It's FAST and EASY! NOTE: your
information will never be sold or misused by ECHO, Inc. Registering your
purchase enables us to contact you in the unlikely event of a service update
or product recall, and verifies your ownership for warranty consideration.
If you do not have access to the Internet, you can complete the form below
and mail to:
ECHO Inc., Product Registration, PO Box 1139, Lake Zurich IL 60047.
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HC-2020 PRODUCT REGISTRATION
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NOTES HC-2020
NOTES
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HC-2020 NOTES
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© 7/2018 ECHO Inc.
U15015001001 - U15015999999
ECHO, INCORPORATED
400 Oakwood Road
Lake Zurich, IL 60047
www.echo-usa.com
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