Echo PB-651H User manual

Power Blower
Operator'sManual
MODEL: PB-651H
PB-651T
X750006140
12/03
X7501128700
WARNING DANGER
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.

2
TABLE OF CONTENTS
Introduction ...................................................................... 2
- The Operator's Manual .............................................. 2
Safety ................................................................................ 3
- Manual Safety Symbols and Important Information .. 3
- InternationalSymbols ................................................ 3
- Personal Condition and Safety Equipment ................ 3
- Equipment .................................................................. 6
EmissionControl............................................................... 6
Description ....................................................................... 7
ContentsPB-651H/PB-651T ............................................ 11
Assembly ........................................................................ 12
- InstallBlowerPipes/StickHandlePB-651H............ 12
- InstallBlowerPipesPB-651T ................................... 13
Operation ........................................................................ 14
- Fuel .......................................................................... 14
- StartingColdEngine ................................................ 15
- StartingWarmEngine .............................................. 16
- Stopping Engine ...................................................... 16
- OperatingBlower ..................................................... 17
Maintenance ............................................................ 18
- SkillLevels ........................................................ 18
- Maintenance Intervals ...................................... 18
- AirFilter............................................................ 19
- FuelFilter .......................................................... 19
- SparkPlug......................................................... 20
- CoolingSystem................................................. 20
- ExhaustSystem................................................. 21
- Carburetor Adjustment ..................................... 22
Troubleshooting ...................................................... 23
Storage..................................................................... 24
Specifications........................................................... 25
ServicingInformation............................................... 28
- Parts.................................................................. 28
- Service .............................................................. 28
- ECHOConsumerProductSupport.................... 28
- Warranty Card .................................................. 28
- Additional or Replacement Manuals ................ 28
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
SAFETYmessages.
THE OPERATOR’SMANUAL
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.
Copyright©2003ByEcho,Incorporated
All Rights Reserved.
Specifications,descriptions and illustrativematerial 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 acces-
sories, and may not include all standard equipment.

3
POWER BLOWER
OPERATOR'SMANUAL
IMPORTANT
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.
SAFETY
MANUAL SAFETY SYMBOLS AND IMPORTANT INFORMATION
IMPORTANT
NOTE
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.
This symbol accompanied by the words WARNING and
DANGER calls attention to an act or condition that can lead
to serious personal injury to operator and bystanders.
The circle with the slash symbol means whatever is shown
within the circle is prohibited.
INTERNATIONALSYMBOLS
Symbol
description/application Symbol form/shape Symbol
description/application
Symbol form/shape
Read and understand
Operator's Manual. Fuel and oil mixture
Symbol
description/application Symbol form/shape Symbol
description/application
Symbol form/shape
Hot
Surface Carburetor adjustment
- Idle speed Carburetor adjustment
- High speed mixture
Wear eyes, ears and
head protection
Emergency stop
Finger Severing Carburetor adjustment
- Low speed mixture
Safety/Alert
Wear hand
protection.Use
twohanded.
DONOT smoke
nearfuel.
DONOTallow
flamesorsparks
nearfuel.
Wear slip
resistantfoot
wear.
Ignition
ON/OFF
Primerbulb
Choke Control
"Cold Start"
Position
(ChokeClosed)
Choke Control
"Run"
Position
(ChokeOpen)
PERSONAL CONDITION AND SAFETY EQUIPMENT
WARNING DANGER
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.

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.
• DONOTWEARSHORTS,
• DONOTWEARTIES,SCARVES,andJEWELRY.
Wear sturdy work shoes with nonskid soles:
• DONOTWEAROPENTOEDSHOES,
• DONOTOPERATEUNITBAREFOOTED.
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 recom-
mended,because the minimum exposure,which might triggerthe 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 physi-
cian before further exposing yourself to cold and vibration.

5
POWER BLOWER
OPERATOR'SMANUAL
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
riskfor developinga RepetitiveStress Injury (RSI).An extremeRSI conditionis CarpalTunnel 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 pre-
vented.
WARNING 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
animalsprevented fromcomingnearer than15 m(50 ft.)whilethe
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
duringandimmediatelyafteroperation.

6
EMISSION CONTROL
EPA Phase 2
The emission control system for these engines is EM/TWC (Engine and Catalyst Modification).
IMPORTANTENGINEINFORMATION
ENGINEFAMILY: 4EHXS.0635KA DISPLACEMENT: 63.3CC
EMISSION COMPLIANCE PERIOD: 300 HOURS
THIS ENGINE MEETS U.S. EPA PH2 AND 2000 AND LATER
CALIFORNIA EMISSION REGULATIONS FOR S.O.R.E.
REFER TO OWNER'S MANUAL FOR MAINTENANCE
SPECIFICATIONS AND ADJUSTMENTS.
PRODUCT EMISSION DURABILITY
The 300 hour emission durability 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.
AnEmissionControlLabelislocated ontheunit. (This isan EXAMPLEONLY,information onlabelvaries byengine
FAMILY).
EQUIPMENT CHECK
WARNING DANGER
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.
• Inspect fuel lines, tank and area around carburetor for fuel leaks. DO NOT operate unit if leaks are found.
• 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.

7
POWER BLOWER
OPERATOR'SMANUAL
1
2
3
4
5
6
7
8
9
10
11
12
13
14
DESCRIPTION
PB-651H
Locate these 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 ORDER-
INGinstructionsforspecificinformation.
P/N89016009461
74 Category III
dB(A)
Measured at 50 ft. (15m) per ANSI B175.2
P/NX508000180
General Warning Decal (located on top of blower housing)
Sound Label (located on blower housing)
P/N89016006361
Hot Decal (near muffler)

8
1. SPARKPLUG-Providessparktoignitefuelmixture.
2. SPARKARRESTOR-CATALYTICMUFFLER/MUFFLER-Themufflerorcatalyticmufflercontrolsexhaust
noise and emission. The spark arrestor screen prevents hot, glowing particles of carbon from leaving the muffler.
Keepexhaustareaclearof flammabledebris.
3. RECOILSTARTERHANDLE-Pullrecoilhandleslowlyuntilstarterengages,thenquicklyandfirmly. When
engine starts, return handle slowly. DO NOT let handle snap back or damage to unit will occur.
4. PRIMERBULB-Pumpingprimerbulb beforestartingenginedrawsfreshfuelfromthefueltank,primingthe
carburetor for starting. Pump primer bulb until fuel is visible and flows freely in the clear fuel tank return line. Pump
bulb an additional 4 or 5 times.
5. CHOKE - Move lever up to "Cold Start" ( ) starting position and for emergency stopping. Move lever down to
Run position ( ).
6. FUELTANK-Containsfuelandfuelfilter.
7. FUELTANKCAP-Coversandsealsfueltank.
8. AIRCLEANER-Containsreplaceableairfilterelement.
9. BLOWERPIPES-Exclusivepositivelockingsystem.
10. THROTTLEPOSITIONLEVER/STOPSWITCH -Combinationstopswitchandvariablespeedthrottlelever.
When the lever is moved all the way forward the blower is at Wide Open Throttle (W.O.T.). When the lever is
moved rearward to detent, the blower is at idle. When the lever is moved rearward past the idle detent the blower will
stop.
11. SAFETYDECAL-Listsimportantsafetyprecautions.
12. HANDLE-Rotatesdownward forthrottle controlaccess. Springloaded forflexible operation.
13. SHOULDER HARNESS - Used to support unit on operator's back. The straps are adjustable.
14. STICKHANDLE-Providescomfortablegripfordirectingairflow.

9
POWER BLOWER
OPERATOR'SMANUAL
3
86
1
4
5
7
9
10
2
11 12
13
14
17
15
16
P/N89016006361
P/N89016009461
74 Category III
dB(A)
Measured at 50 ft. (15m) per ANSI B175.2
P/NX508000180
General Warning Decal (located on top of blower housing)
Sound Label (located on blower housing)
Hot Decal (near muffler)
PB-651T
Locate these 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 ORDER-
INGinstructionsforspecificinformation.

10
1. SPARKPLUG-Providessparktoignitefuelmixture.
2. SAFETYDECAL-Listsimportantsafetyprecautions.
3. SPARKARRESTOR-CATALYTICMUFFLER/MUFFLER-Themufflerorcatalyticmufflercontrolsexhaust
noise and emission. The spark arrestor screen prevents hot, glowing particles of carbon from leaving the muffler.
Keepexhaustareaclearof flammabledebris.
4. PRIMERBULB-Pumpingprimerbulb beforestartingenginedrawsfreshfuelfromthefueltank,primingthe
carburetor for starting. Pump primer bulb until fuel is visible and flows freely in the clear fuel tank return line. Pump
bulb an additional 4 or 5 times.
5. CHOKE - Move lever up to Cold Start ( ) starting position and for emergency stopping. Move lever down to
Run position ( ).
6. RECOILSTARTERHANDLE-Pullrecoilhandleslowlyuntilstarterengages,thenquicklyandfirmly. When
engine starts, return handle slowly. DO NOT let handle snap back or damage to unit will occur.
7. FUELTANK-Containsfuelandfuelfilter.
8. FUELTANKCAP-Coversandsealsfueltank.
9. AIRCLEANER-Containsreplaceableairfilterelement.
10. BLOWERPIPES-Exclusivepositivelockingsystem.
11. THROTTLEPOSITIONLEVER-Pullbacktoincreaseenginespeed.Frictionwashersmaintainthrottlelever
setting.
12. STOP SWITCH - Slide switch mounted on top of handle. Move forward to run, back to stop.
13. SHOULDER HARNESS - Used to support unit on operator's back. The straps are adjustable.
14. HANDLE- Used byoperator todirectand controlair flow.
15. THROTTLETRIGGER-Springloadedtoreturntoidlewhenreleased.Duringacceleration,presstriggergradually
for best operating technique.
16. LOCKINGKNOB-Allows operatorto adjusthandlepositionforoptimum comfortand control.
17. FLEXIBLEPIPE-Allowsforfullrangeofmovement.

11
POWER BLOWER
OPERATOR'SMANUAL
PB-651T
__ 1 - PowerHead
__ 1 - FlexPipe
__ 1 - Pipew/swivel
__ 1 - StraightPipe
__ 1 - StraightPipe
__ 1 - Operator's Manual
__ 1 - Warranty Registration Card
__ 1 - ECHO Emissionsand WarrantyStatement
__ 1 - PlasticBag
__ 2-Clampsw/screws
__ 1-CableClamp
__ 1 - Echo PowerBlend TM 2-strokeoilsample
CONTENTS
PB-651H
__ 1 - PowerHead
__ 1 - FlexPipe
__ 1 - Pipew/swivel
__ 1 - StraightPipe
__ 1 - StraightPipe
__ 1 - Operator's Manual
__ 1 - Warranty Registration Card
__ 1 - ECHO Emissionsand WarrantyStatement
__ 1 - PlasticBag
__ 2-Clampsw/screws
__ 1-StickHandle
__ 1-Bolt6x45
__ 1 - Washer 6
__ 1 - Wing nut
__ 1 - Echo PowerBlend TM 2-strokeoilsample

12
ASSEMBLY
PB-651H
WARNING DANGER
Never perform maintenance or assembly procedures with engine
running or serious personal injury may result.
INSTALL BLOWER PIPES / STICK HANDLE
1. Assemble clamps (A) onto both ends of flexible pipe (B).
2. Assembleswivel pipe(C)intoflexiblepipe(B)andtightenclamp
(A).
3. Assemble flexible pipe (B) to elbow (D) on blower and tighten
clamp(A).
NOTE
A light lubricant may be used to ease assembly of flexible pipe to
blowerelbow.
4. Loosen wing nut (E) completely and open stick handle clamp.
5. Align notches (F) in handle clamp with tabs (G).
6. Slide stick handle onto swivel pipe (C). Stick handle should be
angled away from operator.
7. Position stick handle (H) for comfortable operation, and tighten
wingnut(E).
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 instruc-
tions 8 & 9.
I
J
C
C
AA
B
B
D
H
E
G
F
G

13
POWER BLOWER
OPERATOR'SMANUAL
PB-651T
WARNING DANGER
Never perform maintenance or assembly procedures with engine
running or serious personal injury may result.
INSTALL BLOWER PIPES
1. Assemble clamps (A) onto both ends of flexible pipe (B).
2. Assembleswivelpipe(C)intoflexiblepipe(B).
NOTE
Assure throttle cable is not twisted before installing handle (F).
3. Position cable between the elbow (D) and frame and along the top
oftheflexiblepipe. Removeclampscrew(E)onhandle(F).Align
notch in handle with tabs (G). Spread clamp and install onto
swivel pipe (C) past ridges in pipe.
4. Assemble flexible pipe (B) to elbow (D) on blower and tighten
clamps(A).
NOTE
A light lubricant may be used to ease assembly of flexible pipe to
blowerelbow.
5. Install throttle cable guide (H) in second groove of flexible pipe.
6. Move handle (F) to desired position. Tighten knob (I) hand tight
and tighten clamp screw (E).
7. Assemble straight pipe (J) 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.
8. Assemble straight pipe with decal (K) to straight pipe (J) as in
step 7.
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 instruc-
tions 7 & 8.
A
E
B
D
A
C
F
HF
B
F
E
J
K
C
I
G

14
OPERATION
FUEL
Fuel Requirements
Gasoline-Use89 Octane[R+M/2] (midgrade orhigher) gasoline
known to be good quality. Gasoline may contain up to 15% MTBE
(methyl tertiary-butyl ether). Gasohol containing methyl (wood) alcohol
is NOT approved.
TwoStrokeOil-Atwo-strokeengineoilmeetingISO-L-EGD(ISO/CD
13738)andJ.A.S.O. FC Standards must be used. Echobrand premium
Power Blend TM Universal 2-Stroke Oil meets these standards. Engine
problems due to inadequate lubrication caused by failure to use an
ISO-L-EGDandJ.A.S.O.FCcertifiedoil,suchasEchopremiumPower
BlendTM,willvoid thetwo-strokeenginewarranty. (Emissionrelated
parts only are covered for two years, regardless of two-stroke oil used,
per the statement listed in the Emission Defect Warranty Explanation.)
IMPORTANT
EchopremiumPowerBlendTM Universal2-StrokeOilmaybemixed
at 50:1 ratio for application in all Echo engines sold in the past
regardless of ratio specified in those manuals.
oitaR1:05-xiMliOotleuF
.S.UCIRTEM
SAGLIOSAGLIO
snollaG.zo.lFretiL.cc
1
2
5
6.2 2.531 4
8
02
08 061 004
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.
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.
IMPORTANT
Storedfuel ages.Do not mixmore fuel
than you expect to use in thirty (30)
days, ninety (90) days when a fuel
stabilizeris added.
Handling Fuel
WARNING DANGER
FuelisVERYflammable.Useextremecarewhenmixing,storingor
handling or serious personal injury may result.
• Use an approved fuel container.
• DONOTsmokenearfuel.
• DONOT allowflamesor sparksnear fuel.
• Fuel tanks/cans may be under pressure. Always loosen fuel caps
slowly allowing pressure to equalize.
• NEVERrefuelaunitwhentheengineisHOTorRUNNING!
• DONOT fill fuel tanksindoors. ALWAYS fill fueltanks outdoors
over bare ground.
•DONOToverfillfueltank. Wipeupspillsimmediately.
• 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
Stored two-stroke fuel may separate.
ALWAYS shake fuel container
thoroughly before each use.

15
POWER BLOWER
OPERATOR'SMANUAL
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.
• (PB-651H):Rotatespringloaded throttlearmdownwardto acomfort-
able operating position.
PB-651H
1. Throttle Lever
Movethrottlelever(A)toIDLEDETENTposition.
PB-651T
1. Throttle Lever/Stop Switch
Move throttle lever (A) forward to idle position. Slide stop switch
(B) forward to run position.
PB-651H, PB-651T
2. Choke
Move choke (C) up to "Cold Start" position ( ).
3. Primer
Pumpprimer bulb (D) untilfuel is visibleand flows freelyinthe
clear fuel tank return line. Pump bulb an additional 4 or 5 times.
4. Recoil Starter
Pullrecoilstarterhandle(E)untilenginefires(5or6pullsmaxi-
mum).
5. Choke
Move choke (C) 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.
A
C
DE
PB-651H
PB-651T B
A

16
STARTING WARM ENGINE
PB-651H
1. Throttle Lever
Movethrottlelever(A)toIDLEDETENTposition.
PB-651T
1. Throttle Lever/Stop Switch
Move throttle lever (A) forward to idle position. Slide stop switch
(B) forward to run position.
PB-651H, PB-651T
2. Recoil Starter
Pull recoil starter handle (E) and engine should start. Do not use
choke(C).
NOTE
If engine does not start after 5 pulls, use cold start procedures.
A
STOPPING ENGINE
PB-651H
1. Throttle Lever
Move throttle lever (A) to idle detent position and allow engine to
return to idle before shutting off engine.
2. Move throttle lever (A) to "O" (Stop) position.
PB-651T
1. Throttle Lever
Move throttle lever (A) forward to idle position and allow engine
to return to idle before shutting off engine.
2. Stop Switch
Slide stop switch (B) to Stop position.
WARNING DANGER
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.
A
C
E
PB-651H
PB-651H
PB-651T B
A
PB-651T B
A

17
POWER BLOWER
OPERATOR'SMANUAL
OPERATING BLOWER
WARNING DANGER
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 on pages 4 - 6 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. Set engine speed with throttle lever (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
alawn 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.
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
PB-651H
PB-651T
A

18
MAINTENANCE
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 task is not listed, see your ECHO Dealer for repairs.
SKILL LEVELS
Level1= Easy to do. Most required tools come with unit.
Level2= Moderatedifficulty. Some specialized toolsmay be required.
Level3= Experiencerequired.Specializedtoolsarerequired.Echorecommends
the unit be returned to your Echo Dealer for servicing.
ECHO offers REPOWERTM Maintenance Kits and Parts to make your maintenance job easier. Just below each task
heading are listed the various part numbers required for that task. See your ECHO dealer for these parts.
MAINTENANCE INTERVALS
/TNENOPMOC METSYS ECNANETNIAM ERUDECORP
D'QER LLIKS LEVEL
YLIAD RO EROFEB ESU
YREVE LEUFER
3SHTNOM 09RO SRUOH 6SHTNOM 072RO SRUOH
YLRAEY
serudecorPecnanetniaMrelaeDohcEdednemmoceR
troPtsuahxErednilyCnobraceD/naelC/tcepsnI 3C/I
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etniaMflesruoY-tI-oD
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ekohCnaelC/tcepsnI 2C/I
retliFleuFecalpeR/tcepsnI 1I*
R
skaeL,metsySleuFecalpeR/tcepsnI 1I*R/I
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19
POWER BLOWER
OPERATOR'SMANUAL
AIR FILTER
Level1.
Tools required: 25-50mm(1-2in.)cleaningbrush
Parts required: RepowerTM TuneUpKitP/N90070
NOTE
Cleandaily.
1. Close choke (Cold Start Position [ ]). This prevents dirt from
entering the carburetor throat when the air filter is removed.
Brushaccumulated dirt from theair cleaner area.
2. Remove the air cleaner cover. Clean and inspect the element for
damage. If element is fuel soaked and very dirty, replace.
3. If element can be cleaned and reused, be certain it:
•still fits the cavity in the air cleaner cover.
•is installed with the original side out.
FUEL FILTER
Level1.
Tools required: 200-250mm(8-10in.)lengthof wirewithoneend
bent into a hook, clean rag, funnel, and an approved
fuel container
Parts required: RepowerTM TuneUpKitP/N90070
WARNING DANGER
FuelisVERYflammable.Useextremecarewhenmixing,storingor
handling.
1. Use a clean rag to remove loose dirt from around fuel cap and
emptyfuel tank.
2. Use the “fuel line hook” to pull the fuel line and filter from the
tank.
3. Removethe filterfrom the lineand installthe new filter.

20
COOLING SYSTEMS CLEANING
Level2.
Tools required: 25-50mm (1-2 in.)cleaningbrush,CrossHead
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. Removeaccumulateddebrisfromintakegrill betweenbackpack
frame and blower housing.
Cleaning Cylinder Fins
1. Remove spark plug and engine cover (four screws), pull cover
awayfromengine.
2. Clean cylinder fins (A) to allow cooling air to pass freely.
3. Install engine cover and spark plug.
SPARK PLUG
Level1.
Tools required: 19mmSpark Plugdeepsocket,Feelergauge
Parts Required: RepowerTM TuneUpKitP/N90070
IMPORTANT
UseonlyNGKBPM-8Ysparkplug(BPMR-8YinCanada)
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.Remainingsandwilldamageengine.
3. Adjust spark plug gap by bending outer electrode.
4. Tightensparkplugto150-170kg/cm(130-150in.lb.).
A
0.65 mm
(0.026 in.)