Page 1
Power Blower
Operator's Manual
MODEL PB-620
WARNING
X7531122203
Read rules for safe operation and all instructions carefully. ECHO provides this
Operator's Manual, which must be read and understood for proper and safe operation.
X753002803
01/09
Page 2
2
INTRODUCTION
Welcome to the ECHO family. This ECHO product was designed and manufactured to provide long life and on-the-job
dependability. Read and understand this manual. You will find it easy to use and full of helpful operating tips and
SAFETY messages.
THE OPERATOR'S MANUAL
Read and understand this manual before operation. Keep it in a safe
place for future reference. It contains specifications and information for
operation, starting, stopping, maintenance, storage, and assembly
specific to this product.
TABLE OF CONTENTS
Introduction ................................................................... 2
- The Operator's Manual ........................................... 2
Safety ............................................................................. 3
- Manual Safety Symbols and Important Information 3
- International Symbols ............................................. 3
- Personal Condition and Safety Equipment ............. 3
- Equipment Check .................................................... 6
Emission Control ............................................................ 6
Description .................................................................... 7
Contents ........................................................................ 9
Assembly ....................................................................... 9
- Install Blower Pipes ................................................ 9
Operation ..................................................................... 10
- Fuel ....................................................................... 10
- Starting Cold Engine ............................................. 12
- Starting Warm Engine ..........................................13
- Stopping Engine ................................................... 1 3
- Operating Blower ................................................. 1 4
Copyright© 2009 By Echo, Incorporated
All Rights Reserved.
Maintenance ................................................................ 15
- Skill Levels .......................................................... 15
- Maintenance Intervals .......................................... 1 5
- Air Filter............................................................... 16
- Fuel Filter ............................................................. 16
- Spark Plug ............................................................ 17
- Cooling System .................................................... 17
- Exhaust System .................................................... 18
- Carburetor Adjustment ........................................ 2 0
Troubleshooting .......................................................... 22
Storage ......................................................................... 23
Specifications.............................................................. 2 4
Servicing Information ................................................. 28
- Parts ..................................................................... 28
- Service .................................................................. 28
- ECHO Consumer Product Support ...................... 28
- Warranty Registration .......................................... 28
- Additional or Replacement Manuals ................... 28
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.
Page 3
SAFETY
POWER BLOWER
OPERATOR'S MANUAL
3
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
“DANGER” calls attention to an act or condition
which WILL lead to serious personal injury or death
if not avoided.
WARNING
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.
CAUTION
The safety alert symbol accompanied by the word
“CAUTION” calls attention to an act or condition
NOTE
This enclosed message provides tips for use, care
and maintenance of the unit.
IMPORTANT
The enclosed message provides information
necessary for the protection 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.
which may lead to minor or moderate personal injury
if not avoided.
INTERNATIONAL SYMBOLS
SYMBOL
Read and under-
stand Operator's
PERSONAL
DESCRIPTION SYMBOL DESCRIPTION
Fuel and oil
Manual.
Wear eyes, ears
and head
protection
Hot
Surface
Safety/Alert
DO NOT allow
flames or sparks
near fuel.
mixture
Finger
Severing
Wear hand
protection. Use
two handed.
Wear slip
resistant foot
wear.
DO NOT smoke
near fuel.
SYMBOL
CONDITION AND SAFETY EQUIPMENT
DESCRIPTION
Ignition
ON/OFF
Stop
Carburetor
Adjustment
- High speed
mixture
Carburetor
adjustment
- Low speed
mixture
Idle Speed Fast Speed
SYMBOL
DESCRIPTION
Purge
Choke Control
"Cold Start"
Position
(Choke Closed)
Choke Control
"Run"
Position
(Choke Open)
Carburetor
Adjustment
- Idle speed
WARNING
Power Blower users risk injury to themselves and others if the power blower is used improperly or safety precautions
are not followed. Proper clothing and safety gear must be worn when operating a blower.
Bulb
Page 4
4
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
Wear eye protection that meets ANSI Z87.1 or CE requirements whenever you operate the unit.
Hand Protection
Wear no-slip, heavy-duty work gloves to improve your grip on the blower handle. Gloves also reduce the transmission
of machine vibration to your hands.
Breathing Protection
Wear a facemask to protect against dust.
Hearing Protection
ECHO recommends wearing hearing protection whenever unit is used.
Proper Clothing
Wear snug fitting, durable clothing;
• Pants should have long legs, shirts with long sleeves.
• DO NOT WEAR SHORTS,
• DO NOT WEAR TIES, SCARVES, and JEWELRY.
Wear sturdy work shoes with nonskid soles:
• DO NOT WEAR OPEN TOED SHOES,
• DO NOT OPERATE UNIT BAREFOOTED.
Keep long hair away from engine and blower intake. Retain hair with cap or net.
Hot Humid Weather
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.
Vibration and Cold
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.
Page 5
POWER BLOWER
OPERATOR'S MANUAL
Repetitive Stress Injuries
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.
5
DANGER
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.
• Take wind conditions into account: avoid open doors and
windows.
• Do not point blower at people or animals.
Keep a Firm Grip
• Hold the front and rear handles with both hands, with thumbs
and fingers 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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6
EQUIPMENT CHECK
WARNING
Use only ECHO approved 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. Read and comply with all safety instructions listed in this manual and
safety manual.
• Check unit for loose/missing nuts, bolts and screws. Tighten and/or replace as needed.
• Do not use blower if any part is missing or damaged.
• Have repairs done only by an authorized ECHO Service dealer.
• Do not use any attachment, accessory or replacement part unless it is recommended in this Operator's Manual.
WARNING
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.
WARNING
Check fuel system for leaks due to fuel tank damage, especially if the unit is dropped. If damage or leaks are found,
do not use unit, otherwise serious personal injury or property damage may occur. Have unit repaired by an authorized servicing dealer before using.
EMISSION CONTROL (EXHAUST & EVAPORATIVE)
EPA Phase 2 / C.A.R.B. TIER III
The emission control system for the engine is EM/TWC (Engine Modification and 3-way Catalyst) and for the fuel
tank the Control System is EVAP (Evaporative Emissions) or N (for nylon tank). Evaporative emission may be applicable to California models only.
IMPORTANT ENGINE INFORMATION
ENGINE FAMILY: 9EHXS.0585KA DISPLACEMENT: 58.2 CC
EMISSION COMPLIANCE PERIOD : 300 HRS.
THIS ENGINE MEETS U.S. EPA PH2 EXH AND 2007 AND
LATER CALIFORNIA EXH AND EVAP EMISSION REGULA-
An Emission Control Label is located on the unit.
(This is an EXAMPLE ONLY, information on label
varies by engine FAMILY).
PRODUCT EMISSION DURABILITY (EMISSION COMPLIANCE PERIOD)
The 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.
TIONS FOR S.O.R.E.. REFER TO OWNER'S MANUAL FOR
MAINTENANCE SPECIFICATIONS AND ADJUSTMENTS.
Page 7
POWER BLOWER
OPERATOR'S MANUAL
DESCRIPTION
Locate the safety decals on your unit. Make sure the decals are legible and that you understand and follow the instructions on them. If a decal cannot be read, a new one can be ordered from your ECHO dealer. See PARTS ORDERING
instructions for specific information.
7
Hot Decal (near muffler)
1
2
6
7
3
8
9
5
4
P/N X505002310
12
13
11
10
14
15
General Warning Decal (located on top of blower housing)
P/N 89016009461
Sound Label (located on blower housing)
P/N X508000150
72 Category III
Measured at 50 ft. (15m) per ANSI B175.2
dB(A)
Return to Idle
P/N X505000950
RETURN TO IDLE
BEFORE
SHUTTING OFF
Page 8
8
1. SAFETY DECAL - Lists important safety precautions.
2. SPARK PLUG - Provides spark to ignite fuel mixture.
3. SPARK ARRESTOR - CATALYTIC MUFFLER / MUFFLER - The muffler or catalytic muffler controls
exhaust noise and emission. The spark arrestor screen prevents hot, glowing particles of carbon from leaving the
muffler. Keep exhaust area clear of flammable debris.
4. RECOIL STARTER HANDLE - Pull recoil handle slowly until starter engages, then quickly and firmly. When
engine starts, return handle slowly. DO NOT let handle snap back, or damage to unit will occur.
5. AIR CLEANER - Contains replaceable air filter element.
6. FUEL TANK CAP - Covers and seals fuel tank.
7. SHOULDER HARNESS - Used to support unit on operator's back. The straps are adjustable.
8. CHOKE - Choke is located on the side of the air cleaner. Move choke lever to "COLD START" (
choke for cold starting. Move choke lever to "RUN" ( ) position to open choke.
9. PURGE BULB - Pumping purge bulb before starting engine draws fresh fuel from the fuel tank, purging air from
the carburetor. Pump purge bulb until fuel is visible and flows freely in the clear fuel tank return line. Pump bulb
an additional 4 or 5 times.
10. LOCKING KNOB - Allows operator to adjust handle position for optimum comfort and control.
11. HANDLE - Used by operator to direct and control air flow.
12. COMBINATION THROTTLE POSITION /STOP SWITCH BUTTON - Controls engine speed and turns
ignition on or off. Forward position - STOP. First detent position - IDLE. Move button back to increase speed,
forward to decrease speed. Use Throttle Position Button to set and hold blower speed for continuous operation.
13. THROTTLE TRIGGER - Spring-loaded Throttle Trigger controls engine speed. Releasing Trigger returns
engine to speed setting set by Throttle Position Stop Switch Button. Always release trigger and allow engine to
return to idle before shutting off with Throttle Position Stop Switch Button. Use Throttle Trigger to vary blower
speed settings for intermittent operation.
14. BLOWER PIPES - Exclusive positive locking system.
15. FLEXIBLE PIPE - Allows for full range of movement.
) to close
Page 9
CONTENTS
___ 1 - Power Head
___ 1 - Flex Pipe
___ 1 - Pipe w/swivel
___ 1 - Straight Pipe
___ 1 - Straight Pipe w/decal
___ 1 - Operator's Manual
___ 1 - Warranty Registration Card
___ 1 - ECHO Emissions and Warranty Statement
___ 1 - Plastic Bag
___ 2 - Clamps w/screws
___ 1 - Guide Loop
___ 1 - Echo Power Blend X
TM
2-stroke oil sample
POWER BLOWER
OPERATOR'S MANUAL
9
ASSEMBLY
WARNING
Never perform maintenance or assembly procedures with engine
running or serious personal injury may result.
INSTALL BLOWER PIPES
1. Place guide loop (G) across elbow clamp, and turn until clips
fully engage clamp band.
2. Assemble clamps (A) onto both ends of flexible pipe (B).
NOTE
Clamp with cable guide loop (G) fits elbow end of flexible pipe.
3. Assemble swivel pipe (C) into flexible pipe (B).
NOTE
Assure throttle cable is not twisted before installing handle (E).
G
A
G
B
E
B
G
A
4. Position cable between the elbow (D) and frame and along the
top of the flexible pipe. Loosen knob (H) on handle (E). Align
notch in handle with tabs (F). Install onto swivel pipe (C) past
long ridges in pipe.
F
D
C
H
Page 10
10
5. Assemble flexible pipe (B) to elbow (D) on blower and tighten
clamps (A). Position guide loop (G) on inside (blower side) of
flexible tube.
NOTE
A light lubricant may be used to ease assembly of flexible pipe to
blower elbow.
6. Clip throttle cable into throttle cable guide loop (G).
7. Move handle (E) to desired position. Tighten knob (H) hand
tight.
8. Assemble straight pipe (I) onto swivel pipe (C), until you feel
light resistance. Do not force connection. Hold swivel pipe and
turn straight pipe clockwise, engaging positive locking channels,
until connection is firm. Do not force connection.
9. Assemble straight pipe with decal (J) to straight pipe (I) as in
step 8.
NOTE
Blower use will eventually loosen pipe connections. Exclusive
positive locking system allows pipes to be tightened. If loosening
occurs, remove two straight pipes and install according to instructions 8 & 9.
G
E
H
J
E
I
C
OPERATION
WARNING
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. Blower housing may contain shredder blades
and other sharp edges that can cause serious injuries if touched, even if engine is off and blades are not moving.
Wear gloves to protect hands from sharp edges and hot surfaces.
WARNING
Operation of this equipment may create sparks that can start fires around dry vegetation. This unit is equipped with a
spark arrestor and a spark arrestor may be required. The operator should contact local fire agencies for laws or
regulations relating to fire prevention requirements.
FUEL
NOTICE: 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.
Page 11
POWER BLOWER
OPERATOR'S MANUAL
WARNING
Alternative fuels, such as E-20 (20% 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 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. 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.
11
Two Stroke Oil - A two-stroke engine oil meeting ISO-L-EGD (ISO/CD 13738) and J.A.S.O.
be used. Echo brand premium Power Blend X TM Universal 2-Stroke Oil meets these standards. Engine problems due
to inadequate lubrication caused by failure to use anSO-L-EGD (ISO/CD 13738) and J.A.S.O. FC/FD certified oil,
such as Echo premium Power Blend X TM, will void the two-stroke engine warranty.
IMPORTANT
Echo premium Power Blend X TM Universal 2-Stroke Oil may be mixed at 50:1 ratio for application in all Echo
engines sold in the past regardless of ratio specified in those manuals.
FC/FD Standards must
Handling Fuel
DANGER
Fuel is VERY flammable. Use extreme care when mixing, storing or handling or serious personal injury may
result.
• Use an approved fuel container.
• DO NOT smoke near fuel.
• DO NOT allow flames or sparks near fuel.
• Fuel tanks/cans may be under pressure. Always loosen fuel caps slowly allowing pressure to equalize.
• NEVER refuel a unit when the engine is HOT or RUNNING!
• DO NOT fill fuel tanks indoors. ALWAYS fill fuel tanks outdoors over bare ground.
• DO NOT overfill fuel tank. Wipe up spills immediately.
• Securely tighten fuel tank cap and close fuel container after refueling.
• Inspect for fuel leakage. If fuel leakage is found, do not start or operate unit until leakage is repaired.
• Move at least 3m (10 ft.) from refueling location before starting 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.
IMPORTANT
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.
Page 12
12
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.
STARTING COLD ENGINE
• Recoil starter: Use short pulls - only 1/2-2/3 of rope length for
starting. Do not allow the rope to snap back in. Always hold the unit
firmly.
IMPORTANT
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.
IMPORTANT
Stored two-stroke fuel may separate.
ALWAYS shake fuel container
thoroughly before each use.
A
1. Throttle Position/Stop Switch Button
Slide Throttle Position /Stop Switch Button (A) back to idle
position (first detent away from stop position)
2. Choke
Move choke (B) up to Cold Start position ( ).
3. Purge Bulb
Pump purge bulb (C) until fuel is visible and flows freely in the
clear fuel tank return line. Pump bulb an additional 4 or 5 times.
4. Recoil Starter
Pull recoil starter handle (D) until engine fires (5 pulls maximum).
5. Choke
Move choke (B) down to run position ( ), and if necessary,
restart engine.
NOTE
If engine does not start after 5 pulls, move choke to "Cold Start"
position, and repeat steps 4 & 5.
NOTE
Allow engine to warm up before use.
B
C
D
Page 13
STARTING WARM ENGINE
The starting procedure is the same as Cold Start except DO NOT close
the choke.
1. Throttle Position/Stop Switch Button
Slide Throttle Position /Stop Switch Button (A) back to idle
position (first detent away from 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
Pull recoil starter handle (D) and engine should start.
POWER BLOWER
OPERATOR'S MANUAL
A
13
NOTE
If engine does not start after 5 pulls, use cold start procedures.
STOPPING ENGINE
1. Throttle Position/Stop Switch Button
Release throttle trigger. Move Throttle Position /Stop Switch
Button (A) forward to idle position (first detent away from stop
position) and allow engine to return to idle before shutting off
engine.
2. Throttle Position/Stop Switch Button
Move Throttle Position /Stop Switch Button (A) all the way
forward to STOP position.
WARNING
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 blower
again.
C
D
A
Page 14
14
OPERATING BLOWER
WARNING
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.
WARNING
Always wear safety glasses, hearing protection, a face filter mask,
and take all safety precautions, or serious personal injury may
result.
Do not point the blower pipe in the direction of people or pets.
Read the Safety Section carefully.
IMPORTANT
To avoid engine damage due to over-revving, do not block blower
pipe opening.
1. Use only during appropriate hours.
2. Allow the engine to warm up at a fast idle for a few minutes.
3. Control blower speed with Throttle Trigger (B), or for continuous use, set engine speed with Combination Throttle Position /
Stop Switch Button (A).
4. Use lower speed to blow dry leaves from walks, patios and drives.
5. Additional speed may be necessary to clean grass and leaves from
a lawn or flower bed.
6. Higher speed may be necessary to move gravel, dirt, snow,
bottles or cans from a driveway, street, parking lot or stadium.
7. Always stop unit using stop engine procedure.
NOTE
Never use a higher speed setting than necessary to perform a task.
Remember, the higher the engine speed, the louder the blower noise.
Minimize dust by using blower at lower speeds and by dampening
material with water/mist when necessary. Keep debris on your
property.
Be Smart - be a good neighbor.
A
B
Page 15
POWER BLOWER
COMPONENT / SYSTEM
MAINTENANCE
PROCEDURE
REQ'D
SKILL
LEVEL
DAILY OR
BEFORE USE
EVERY
REFUEL
3 MONTHS
OR 90
HOURS
YEARLY
600 HOURS
Air Filter Inspect/Clean
1
I / C * R *
Choke Shutter Inspect/Clean
1
I / C
Fuel Filter Inspect/Replace
1
I * I / R *
Fuel Cap Gasket Inspect/Replace
1
I *
Fuel System Inspect/Replace
1
I (1) * I (1) *
Spark Plug Inspect/Clean/Replace
1
I / C / R *
Cooling System Inspect/Clean
2
I / C
Muffler Spark Arrestor Inspect/Clean/Replace
2
I / C / R *
Cylinder Exhaust Port Inspect/Clean/Decarbon
2
I / C
Recoil Starter Rope Inspect/Clean
1
I / C *
Screws/Nuts/Bolts Inspect/Tighten/Replace
1
I *
MAINTENANCE PROCEDURE LETTER CODES:
I = INSPECT, R = REPLACE, C = CLEAN
IMPORTANT NOTE - Time intervals shown are maximum. Actual use and your experience will determine the
frequency of required maintenance.
MAINTENANCE PROCEDURE NOTES:
(1) Low evaporative fuel tanks DO NOT require regular maintenance to maintain emission integrity.
* All recommendations to replace are based on the finding of damage or wear during inspection.
OPERATOR'S MANUAL
15
MAINTENANCE
WARNING
Moving parts can amputate fingers or cause severe injuries. Keep hands, clothing and loose objects away from all
openings. Always stop engine, disconnect spark plug, and make sure all moving parts have come to a complete
stop before removing obstructions, clearing debris, or servicing unit. Allow unit to cool before performing service.
Wear gloves to protect hands from sharp edges and hot surfaces.
Your ECHO blower is designed to provide many hours of trouble-free service. Regular scheduled maintenance will help
your blower achieve that goal. If you are unsure or are not equipped with the necessary tools, you may want to take your
unit to an ECHO Service Dealer for maintenance. To help you decide whether you want to DO-IT-YOURSELF or have the
ECHO Dealer do it, each maintenance task has been graded. If a task is not listed, see your ECHO Dealer for repairs.
SKILL LEVELS
Level 1 = Easy to do. Common tools may be required.
Level 2 = Moderate difficulty. Some specialized tools may be required.
ECHO offers REPOWERTM Maintenance Kits and Parts to make your maintenance job easier.
MAINTENANCE INTERVALS
Page 16
16
AIR FILTER
Level 1.
Tools required: 25 - 50 mm (1 - 2 in.) Cleaning brush.
Parts required: REPOWER
NOTE
Clean daily.
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. Remove air filter and lightly brush debris from filter. Replace
filter if it is damaged, fuel soaked, very dirty, or the rubber
sealing edges are deformed.
4. If filter can be reused, be certain it:
• Fits tightly in the air filter cavity.
• Is installed with the original side out.
5. Install air filter cover.
TM
Tune Up Kit
FUEL FILTER
Level 1.
Tools required: 200-250 mm (8 - 10 in.) length of wire with one end
bent into a hook, clean rag, funnel, and an approved
fuel container.
Parts required: REPOWER
TM
Tune Up Kit
DANGER
Fuel is VERY flammable. Use extreme care when mixing, storing or
handling.
1. Use a clean rag to remove loose dirt from around fuel cap and
empty fuel tank.
2. Use the “fuel line hook” to pull the fuel line and filter from the
tank.
3. Remove the filter from the line and install the new filter.
Page 17
POWER BLOWER
OPERATOR'S MANUAL
17
SPARK
Level 1.
Tools required: 19 mm Spark Plug deep socket, feeler gauge
Parts Required: REPOWER
IMPORTANT
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, and worn or rounded
2. Clean the plug or replace with a new one. DO NOT sand blast to
3. Adjust spark plug gap by bending outer electrode.
4. Tighten spark plug to 150-170 kgf • cm (130-150 in.• lbf).
PLUG
TM
Tune Up Kit
center electrode.
clean. Remaining sand will damage engine.
COOLING SYSTEM
0.65 mm
(0.026 in.)
Level 2.
Tools required: 25 - 50 mm (1 - 2 in.) cleaning brush, cross head
screwdriver
Parts Required: None, if you are careful.
IMPORTANT
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.
Cleaning Grill
1. Remove accumulated debris from intake grill between backpack
frame and blower housing.
Page 18
18
Cleaning Cylinder Fins
A
1. Disconnect spark plug lead (A), and pull lead out of upper cover
clamp and lower cover clamp.
2. Remove 5 screws and remove engine cover (B).
3. Clean cylinder fins (C) to allow cooling air to pass freely.
EXHAUST SYSTEM
Spark Arrestor Screen
Level 2.
Tools required: Cross head screwdriver, soft metal brush
Parts Required: Spark arrestor screen, Gaskets (3)
IMPORTANT
Carbon deposits in muffler will cause a drop in engine output and
overheating. Spark arrestor screen must be checked periodically.
C
B
1. Remove spark plug lead from spark plug, and remove engine or
muffler cover (5 screws).
2. Remove spark arrestor cover (A), gaskets (B) and spark arrestor
screen (C) from muffler.
3. Clean carbon deposits from muffler components.
NOTE
When cleaning carbon deposits, be careful not to damage the
catalytic element inside muffler.
4. Replace screen if it is cracked, plugged, or has holes burned
through.
5. Install engine cover or muffler cover and attach spark plug lead.
B
A
C
Page 19
Exhaust Port Cleaning
Level 2.
Tools required: 4 & 5 mm Hexagon wrench, Cross head
screwdriver, Wood or plastic scraper
Parts Required: As needed: Heat Shield
POWER BLOWER
OPERATOR'S MANUAL
19
1. Remove spark plug lead from spark plug, and remove engine or
muffler cover (5 screws).
2. Place piston at top dead center. Remove muffler (A) gasket (B),
and heat shield (C).
3. Use a wood or plastic scraping tool to clean deposits from
cylinder exhaust port.
IMPORTANT
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 (C) and gasket (B) and replace if damaged.
5. Install heat shield (C), gasket (B), and muffler (A).
6. Tighten muffler mounting bolts (or nuts) to 110-130 in•lbf
(130-150 kgf•cm).
7. Install engine cover.
8. Attach spark plug lead.
A
B
C
9. Start engine, and warm to operating temperature.
10. Stop engine, and re-tighten mounting bolts (or nuts) to specifications.
Page 20
20
CARBURETOR ADJUSTMENT
Engine Break-In
New engines must be operated for a minimum duration of two tanks of
fuel 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 mean sea level
(MSL) (96.0 kPa and below). To maintain proper engine operation and
emission compliance above 1,100 feet MSL the carburetor may need
to be adjusted by an authorized ECHO service dealer.
IMPORTANT
If the engine is adjusted for operation above 1,100 feet MSL, the
carburetor must be re-adjusted when operating the engine below
1,100 feet MSL, otherwise severe engine damage can result.
IMPORTANT
For engine operation above 2,000 feet, turn the high-speed needle
lean (CW) until the engine runs between 7,000 and 8,000 RPM. Then
turn the low-speed needle lean (CW) until the engine does not
hesitate on acceleration.
For engine operation below 2,000 feet, turn the high-speed needle
rich (CCW) until the engine runs between 7,000 and 8,000 RPM.
Then turn the low-speed needle rich (CCW) until the engine does
not hesitate on acceleration.
DO NOT REMOVE LIMITER CAPS!
Level 2.
Tools required: Screwdriver, tachometer (Echo P/N 99051130017)
Parts required: None.
NOTE
Do not adjust carburetor unless necessary. If you have difficulty,
see your ECHO dealer.
Page 21
Adjustment Screws
Idle Speed (A) Control throttle opening at idle.
Low (LO) Speed (B) Controls amount of fuel at low speed and
supplementary fuel for smooth progression from
idle to high speed.
High (HI) Speed (C) Controls amount of fuel at full throttle
Before Adjustment
Check that:
• Air filter is clean and properly installed.
• Spark arrestor screen and muffler are free of carbon.
• Blower pipes are installed.
POWER BLOWER
OPERATOR'S MANUAL
A
21
Initial Adjustment
1. With engine off, turn HI speed screw (C) counterclockwise to
stop.
2. Turn LO speed screw (B) midway between stops.
3. Turn idle screw (A) until tip of screw just touches throttle plate;
then turn three (3) turns clockwise.
Final Adjustment
IMPORTANT
Limiter caps prevent exceeding C.A.R.B. and E.P.A. emission limits
and over-rich adjustment, but not over lean adjustment, which can
cause engine failure: Do not exceed recommended HI speed engine
R.P.M. during operation, or for long periods during adjustment.
1. Start engine, run at idle for one minute.
2. Complete warm-up by running at full throttle for 5 minutes,
operating choke twice to clear air from carburetor chambers.
C
B
3. Run at idle and accelerate to check for smooth transition from
idle to high speed; if engine hesitates, turn LO speed screw (B)
counterclockwise 1/8th of a turn at a time until acceleration is
smooth.
4. Use a tachometer to adjust idle speed to specifications found on
page 24.
Page 22
22
TROUBLESHOOTING
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DANGER
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.
Page 23
POWER BLOWER
OPERATOR'S MANUAL
STORAGE
WARNING
During operation the muffler or catalytic muffler and surrounding cover become hot. Always keep exhaust area clear
of flammable debris during transportation or when storing, otherwise serious property damage or personal injury may
result.
Long Term Storage (Over 30 Days)
Do not store your unit for a prolonged period of time (30 days or longer) without performing protective storage maintenance which includes the following:
1. Store unit in a dry, dust-free place, out of the reach of children.
DANGER
Do not store in enclosure where fuel fumes may accumulate or reach an open flame or spark.
23
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. Tighten all screws and nuts.
6. Drain the fuel tank completely and pull the recoil
starter handle several times to remove fuel from the
carburetor.
7. Remove the spark plug and pour 7cc (1/4 oz.) of
fresh, clean ECHO 2-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.
8. Install the spark plug (do not connect ignition
cable).
9. Remove blower pipe assembly from unit.
Page 24
24
SPECIFICATIONS
MODEL ----------------------------------------------------- PB-620
Length ------------------------------------------------------- 325 mm (12.8 in.)
Width -------------------------------------------------------- 520 mm (20.5 in.)
Height ------------------------------------------------------- 490 mm (19.3 in.)
Weight (dry) ------------------------------------------------ 9.5 kg (20.9 lb.)
Engine Type ------------------------------------------------ Air cooled, two-stroke, single cylinder gasoline engine
Displacement ----------------------------------------------- 58.2 cc (3.55 cu. in.)
Bore ---------------------------------------------------------- 46.0 mm (1.81 in.)
Stroke -------------------------------------------------------- 35.0 mm (1.38 in.)
Carburetor -------------------------------------------------- Zama w/purge bulb
Ignition System -------------------------------------------- Flywheel Magneto, capacitor discharge ignition type
Spark Plug -------------------------------------------------- NGK BPM-8Y Gap 0.65 mm (0.026 in.)
Exhaust System -------------------------------------------- Spark arrestor - catalytic muffler / muffler
Fuel ---------------------------------------------------------- Mixed (Gasoline and Two-stroke Oil)
Fuel/Oil Ratio ----------------------------------------------- 50 : 1 Power Blend X TM ISO-L-EGD (ISO/CD 13738) and J.A.S.O.
M345- FC/FD, two-stroke, air-cooled engine oil.
Gasoline ----------------------------------------------------- Use 89 Octane unleaded. Do not use fuel containing methyl
alcohol, more than 10% ethyl alcohol or 15% MTBE. Do not use
alternative fuels such as E-20 or E-85.
Oil ------------------------------------------------------------ Power Blend X TM Premium Universal 2-Stroke Oil
Fuel Tank Capacity ---------------------------------------- 1.9 lit. (64.3 US fl. oz.)
Recoil Starter System -------------------------------------- Automatic Recoil Starter Centrifugal Type
Idle Speed ---------------------------------------------------2,400 - 3,000 (RPM)
Wide Open Throttle Speed ------------------------------- 7,300 - 7,600 (RPM)
Maximum Air Speed (Measured at pipe end) ---------- 297.7 KM/H (185 mph)
Average Air Volume (Measured at pipe end) ---------- 15.0 m3/min. (530 cu. ft./min.)
Sound Level at 50 ft. dB(A) scale
per ANSI B175.2 ------------------------------------------- 72 dB(A)
Page 25
NOTES
POWER BLOWER
OPERATOR'S MANUAL
25
Page 26
26
NOTES
Page 27
NOTES
POWER BLOWER
OPERATOR'S MANUAL
27
Page 28
SERVICING I NFORMATION
PARTS
Genuine ECHO Parts and ECHO REPOWER™ 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, Type 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. _____________ Type _________SN. ______________
/SERIAL NUMBER
SERVICE
Service of this product during the warranty period must be performed
by an Authorized ECHO Service Dealer. For the name and address of
the Authorized ECHO Service Dealer nearest you, ask your retailer or
call: 1-800-432-ECHO (3246). Dealer information is also available on our
Web Site. When presenting your unit for Warranty service/repairs,
proof of purchase is required.
ECHO CONSUMER PRODUCT SUPPORT
If you require assistance or have questions concerning the application,
operation or maintenance of this product you may call the ECHO
Consumer Product Support Department at 1-800-673-1558 from 8:30 am
to 4:30 pm (Central Standard Time) Monday through Friday. Before
calling, please know the model and serial number of your unit to help
your Consumer Product Support Representative.
WARRANTY REGISTRATION
To ensure trouble free warranty coverage it is important that you
register your ECHO equipment on-line at www.echo-usa.com. Other
registration options are by automated phone at 1-800-432-3246 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.
DEALER?
Call
1-800-432-ECHO
1-800-432-3246
or
www.echo-usa.com
CONSUMER PRODUCT
SUPPORT
1-800-673-1558
8:30 - 4:30 Mon - Fri C.S.T.
ADDITIONAL OR REPLACEMENT MANUALS
Safety Manuals in English/Spanish or English/French are available, free of charge, from your ECHO dealer or at
www.echo-usa.com.
Operator’s and Parts Manuals are available by:
• Downloading free from www.echo-usa.com
• Purchasing from your Echo Dealer.
• Manuals are available by sending a written request stating the model number and serial number of your Echo unit,
part number of the manual, your name and address, and mail to the address below.
Safety Videos are available from your Echo dealer. A $5.00 shipping charge will be required for each video.
ECHO, INCORPORATED
400 OAKWOOD R OAD
LAKE Z URICH, IL 60047
www.echo-usa.com
P08411001001/P08411999999
P09912001001/P09912999999
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