X7702248600
© 1/20 ECHO Incorporated
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.
TABLE OF CONTENTS HC-2020
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TABLE OF CONTENTS
ÍTable of Contents....................................................................................... 2
Introduction ................................................................................................. 3
Servicing Information .................................................................................. 3
Parts/Serial Number............................................................................. 3
Additional or Replacement Manuals .................................................... 3
Warranty Registration .......................................................................... 3
Service................................................................................................. 4
Safety.......................................................................................................... 5
Manual Safety Symbols and Important Information............................. 5
International Symbols .......................................................................... 6
Personal Condition and Safety Equipment .......................................... 7
Equipment.......................................................................................... 12
Description ................................................................................................ 13
Contents.................................................................................................... 14
Assembly................................................................................................... 14
Operation .................................................................................................. 15
Fuel.................................................................................................... 15
Starting Cold Engine.......................................................................... 18
Starting Warm Engine........................................................................ 19
Stopping Engine ................................................................................ 21
Hedge Trimming ................................................................................ 21
Maintenance ............................................................................................. 23
Skill Levels......................................................................................... 23
Maintenance Intervals........................................................................ 24
Air Filter ............................................................................................. 25
Fuel Filter........................................................................................... 25
Spark Plug ......................................................................................... 26
Cooling System.................................................................................. 27
Exhaust System................................................................................. 28
Carburetor Adjustment....................................................................... 30
Lubrication ......................................................................................... 31
Blades................................................................................................ 32
Troubleshooting ........................................................................................ 34
Storage ..................................................................................................... 36
Long Term Storage (Over 30 Days)................................................... 36
Specifications ............................................................................................38
HC-2020 INTRODUCTION
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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. .
SERVICING INFORMATION
Parts/Serial Number
Genuine ECHO Parts and
Assemblies for your products are
available only from an Authorized
ECHO Dealer. When you do need to
buy parts always have the Model
Number and Serial Number of the
unit with you. You can find these
numbers on the engine housing. For
future reference, write them in the
space provided below.
Model No. _________________
SN. ___________________
Additional or Replacement Manuals
Replacement Operator, Safety Manuals, and Parts Catalogs are
available from your ECHO dealer or at echo-latinamerica.com .
Warranty Registration
To ensure trouble free warranty coverage it is important that you register
your ECHO equipment on-line at echo-latinamerica.com
or by filling out the
warranty registration card supplied with your unit. Registering your product
confirms your warranty coverage and provides a direct link between you and
ECHO if we find it necessary to contact you.
SERVICING INFORMATION HC-2020
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Service
Service of this product during the warranty period must be performed by an
Authorized ECHO Service Dealer. For the name and address of the
Authorized ECHO Service Dealer nearest you, visit echo-latinamerica.com.
HC-2020 SAFETY
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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.
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.
SAFETY HC-2020
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International Symbols
Symbol Description Symbol Description
Read and
understand
Owners Manual
Fuel and oil mixture
Wear eye, ear and
head protection
Finger severing
Emergency Stop Hot Surface
Wear hand and
foot protection.
Use two handed
DO NOT smoke near
fuel
Choke Control
“COLD START”
Position (Choke
Closed)
Ignition
ON / OFF
Choke Control
“RUN” Position
(Choke Open)
Do not operate
without guards in
place.
Carburetor
Adjustment - Low
speed mixture
Carburetor
Adjustment - High
speed mixture
Safety/Alert
Carburetor
Adjustment - Idle
speed
Avoid all power
lines. This unit is
not insulated
against electrical
current.
Do not operate
closer than 15 M (50
ft.) from electrical
hazard.
L
H
T
HC-2020 SAFETY
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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.
Plan retreat path
from falling objects
Purge Bulb
DO NOT allow
flames or sparks
near fuel
Wear slip resistant
footwear
Keep bystanders at least
4.5 meters (15 ft.) away.
Symbol Description Symbol Description
SAFETY HC-2020
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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
Operate unit only if you are physically and mentally well.
Eye Protection
◆ Eye protection that meets ANSI Z87.1 or CE requirements
mus
t 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 personal 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.
HC-2020 SAFETY
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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 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 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.
SAFETY HC-2020
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It is believed that a condition called Raynaud’s Phenomenon, which affects
the fingers of certain individuals, may be brought about by exposure to
vibration and cold. Exposure to vibration and cold may cause tingling and
burning sensations, followed by loss of color and numbness in the fingers.
The following precautions are strongly recommended, because the
minimum exposure, which might trigger the ailment, is unknown.
• Keep your body warm, especially the head, neck, feet, ankles, hands, and
wrists.
• Maintain good blood circulation by performing vigorous arm exercises
during frequent work breaks, and also by not smoking.
• Limit the hours of operation. Try to fill each day with jobs where operating
the unit or other hand-held power equipment is not required.
• If you experience discomfort, redness, and swelling of the fingers followed
by whitening and loss of feeling, consult your physician before further
exposing yourself to cold and vibration.
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.
HC-2020 SAFETY
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• Immediately stop using all power equipment and consult a doctor if you
feel tingling, numbness, or pain in the fingers, hands, wrists, or arms. The
sooner RSI/CTS is diagnosed, the more likely permanent nerve and
muscle damage can be prevented.
All over head electrical conductors and communications wires
can have electricity flow with high voltages. This unit is not
insulated against electrical current. Never touch wires directly
or indirectly, otherwise serious injury or death may result.
Do not operate this product indoors or in inadequately
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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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.
Tigh
ten 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
s
ure all moving parts have come to a complete stop befo
re
re
moving obstructions, clearing debris, or servicing unit.
◆ DO NOT start or operate unit unless all guards and
p
rotective covers are properly assembled to unit.
◆ NEVER reach into any opening while the engine is running.
Mo
ving 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.
HC-2020 DESCRIPTION
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DESCRIPTION
Locate the safety decal(s) on your unit. Make sure the decal(s) is legible and
that you understand and follow the instructions on it. If a decal cannot be
read, a new one can be ordered from your ECHO dealer. The safety decal is
for example only. Your label may appear slightly different.
4.5m (15ft)
16
1
2
3
4
5
6
7
8
10
11
12
13
14
9
15
CONTENTS HC-2020
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CONTENTS
The ECHO product you purchased has been factory pre-assembled for your
convenience. Due to packaging restrictions, some assembly may be
necessary.
After opening the carton, check for damage. Immediately notify your retailer
or ECHO Dealer of damaged or missing parts. Use the contents list to check
for missing parts.
ASSEMBLY
This model is factory assembled.
1. Blades
2. Blade Guard
3. Support Handle - For Right Hand
4. Air Cleaner
5. Throttle Handle - For Left Hand
6. Fuel Tank
7. Spark Arrestor Muffler Or Spark Arrestor Muffler With Catalyst
8. Blade Cover
9. Spark Plug
10. Purge Bulb
11. Choke
12. Recoil Starter Handle
13. Fuel Tank Cap
14. Stop Switch
15. Throttle Trigger Lockout
16. Throttle Trigger
1 Hedge Trimmer Assembly
1 Operator’s Manual
1 Warranty Statement
1 Blade Cover
HC-2020 OPERATION
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OPERATION
Moving parts can amputate fingers or cause severe injuries.
Keep hands, clothing and loose objects away from all openings.
Always stop engine, disconnect spark plug, and make sure all
moving parts have come to a complete stop before removing
obstructions, clearing debris, or servicing unit.
Engine exhaust IS HOT, and contains Carbon Monoxide (CO), a
poison gas. Breathing CO can cause unconsciousness, serious
injury, or death. Exhaust can cause serious burns. ALWAYS
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.
Fuel
Use of unmixed, improperly mixed, or fuel older than 90 days, (stale
fuel), may cause hard starting, poor performance, or severe engine
damage and void the product warranty. Read and follow instructions
in the Storage section of this manual.
OPERATION HC-2020
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Fuel containing more than 25% ethanol is NOT approved for use
in ECHO 2-stroke gasoline engines. Fuel containing more than
25% ethanol may cause performance problems, loss of power,
overheating, fuel vapor lock, and unintended machine
operation, including, but not limited to, improper clutch
engagement. Fuel containing more than 25% ethanol may also
cause premature deterioration of fuel lines, gaskets,
carburetors and other engine components.
Fuel Requirements
Gasoline - Use 89 Octane (mid grade or higher) gasoline known to be good
quality. Gasoline may contain up to 25% Ethanol. Gasoline containing
methanol (wood alcohol) is NOT approved.
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 Oil
meets 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. FD
certified oil will void the two-stroke engine warranty.
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 may result.
◆ Use an approved fuel container.
◆ DO NOT smoke near fuel.
◆ DO NOT allow flames or sparks near fuel.
◆ Fuel tanks/cans may be under pressure. Always loosen
f
uel 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
ou
tdoors over bare ground.
◆ DO NOT overfill fuel tank. Wipe up spills immediately.
HC-2020 OPERATION
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◆ 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 3m (10 ft.) from refueling location before
s
tarting the engine.
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.
After use
• DO NOT store a unit with fuel in its tank. Leaks can occur. Return unused
fuel to an approved fuel storage container.
Storage - Fuel storage laws vary by locality. Contact your local government
for the laws affecting your area. As a precaution, store fuel in an approved,
airtight container. Store in a well-ventilated, unoccupied building, away from
sparks and flames.
Stored fuel ages. Do not mix more fuel than you expect to use in thirty
(30) days,
ninety (90) days when a fuel stabilizer is added.
OPERATION HC-2020
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Stored two-stroke fuel may separate. ALWAYS shake fuel container
thoroughly before each use.
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.
A
C
C
B
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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.
D
B
E
F
OPERATION HC-2020
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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
Start Procedure.
A
C
C
D
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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.
F
A
OPERATION HC-2020
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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.
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MAINTENANCE
Moving parts can amputate fingers or cause severe injuries.
Keep hands, clothing and loose objects away from all openings.
Always stop engine, disconnect spark plug, and make sure all
moving parts have come to a complete stop before removing
obstructions, clearing debris, or servicing unit. Allow unit to
cool before performing service. Wear gloves to protect hands
from sharp edges and hot surfaces.
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.
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 HC-2020
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Maintenance Intervals
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.
COMPONENT/SYSTEM
MAINTENANCE
PROCEDURE
REQUIRED
SKILL LEVEL
Daily or Before Use
Air Filter
Inspect/Clean *
1Choke Shutter
Fuel System Inspect
3
Cooling System Inspect/Clean 2
Recoil Starter Rope Inspect/Clean *
1
Screws/Nuts/Bolts Inspect/Tighten/Replace *
Blades Inspect/Clean
2
Every Refuel
Fuel System Inspect
3
1
Three Months
Air Filter Replace *
1Fuel Filter
Inspect *
Fuel Cap Gasket
Spark Plug
Inspect/Clean/Replace *
1
Muffler Spark Arrestor
2
Cylinder Exhaust Port Inspect/Clean/De-carbon
Gear Housing
Grease
1
Yearly
Fuel Filter Inspect/Replace *
1
Fuel Cap Gasket Replace *
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Air Filter
Level 1.
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
Parts Required: Tune-Up Kit
B
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Fuel is VERY flammable. Use extreme care when mixing,
storing or handling, or serious personal injury may result.
1. Use a clean rag to remove
loose dirt from around fuel cap
and empty fuel tank.
2. Pull the fuel 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
g
asoline 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.
Use only NGK BPM-8Y spark plug (BPMR-8Y in Canada) otherwise
severe engine damage may occur.
Parts Required: Tune-Up Kit
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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 150-170 kgf • cm (130-150 in • lbf).
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 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.
Parts Required: None if you are careful.
0.65 mm (0.026 in.)
MAINTENANCE HC-2020
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DO NOT use a metal scraper to remove dirt from the cylinder fins.
5. Assemble components in reverse order.
Exhaust System
Spark Arrestor Screen
Level 2.
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: Spark Arrestor Screen, Gasket
Parts Required: As needed: Heat Shield
A
B
C
HC-2020 MAINTENANCE
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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).
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 (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
B
MAINTENANCE HC-2020
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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.
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
need to be adjusted by an authorized ECHO service dealer.
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.
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.
Parts Required: None
HC-2020 MAINTENANCE
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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.
When carburetor adjustment is completed, the cutting
attachment should not move at idle, otherwise serious personal
injury may result.
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. 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.
Parts Required: Echo RedArmor™ Blade Cleaner & Lubricant, or
20W Engine Oil (blade lubrication), 50-50 mixture of
kerosene and 20W oil (blade cleaning)
A
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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.
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.
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.
Parts Required: Lithium Based Grease.
A
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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.
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
A A
B B
TROUBLESHOOTING HC-2020
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TROUBLESHOOTING
ENGINE PROBLEM TROUBLESHOOTING CHART
Problem Check Status Cause Remedy
Engine
starts
hard
or
Engine
does not
start
Fuel at
carburetor
No fuel at
carburetor
Fuel strainer or
fuel line
obstructed
Clean or replace
See your dealer
Fuel at
cylinder
No fuel at
cylinder
Carburetor See your dealer
Engine
starts
hard
or
Engine
does not
start
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 - Inter-
lock 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
acceler-
ate
properly
Air filter
Air filter
dirty
Normal wear Clean or replace
Fuel filter
Fuel filter
dirty
Contaminants
or residue in
fuel
Replace filter or
replace fuel
Fuel vent
Fuel vent
plugged
Contaminated
fuel
Clean or replace
HC-2020 TROUBLESHOOTING
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Fuel vapors are extremely flammable and may cause fire and/or
explosion. Never test for ignition spark by grounding spark plug
near cylinder plug hole, otherwise serious personal injury may
result.
Engine
runs, but
dies
or
Engine
does not
acceler-
ate
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 oper-
ation 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
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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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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 HC-2020
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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
engine
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
with catalyst
Carburetor Diaphragm w/purge pump
Ignition System Flywheel magneto, capacitor discharge ignition
type
Spark Plug NGK BPMR8Y (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.
Oil ISO-L-EGD (ISO/CD 13738) and J.A.S.O.
M345- FD
, two-stroke, air-cooled engine 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
HC-2020 SPECIFICATIONS
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Wide Open Throttle Speed
(W.O.T.)
10,400 RPM
MODEL HC-2020
