Echo PB-252 LA User manual

Power Blower
Operator's Manual
MODEL PB-252 LA
X750020721
03/13
X7501183901
WARNING
Users of this equipment risk injury to themselves and others if the unit is used im-
properly and/or safety precautions are not followed. ECHO provides an operator’s
manual. It must be read and understood for proper and safe operation. Failure to do
so could result in serious injury.

2
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
Description.................................................................7
Contents .....................................................................8
Assembly....................................................................9
- Install Blower Pipes............................................9
- Remove Blower Pipes.......................................10
Operation..................................................................10
- Fuel ...................................................................10
- Starting Cold Engine.........................................12
- Starting Warm Engine....................................... 13
- Stopping Engine................................................13
- Operating Blower..............................................14
Maintenance.............................................................15
- Skill Levels .......................................................15
- Maintenance Intervals.......................................15
- Air Filter ...........................................................16
- Fuel Filter..........................................................16
- Spark Plug.........................................................17
- Cooling System.................................................17
- Exhaust System.................................................18
- Carburetor Adjustment......................................20
- High Altitude Operation .................................20
Troubleshooting .......................................................21
Storage .....................................................................23
Specications ...........................................................24
Servicing Information ..............................................28
- Parts/Serial Number..........................................28
- Service ..............................................................28
- ECHO Consumer Product Support...................28
- Warranty Card...................................................28
- Additional or Replacement Manuals ................28
Specications, descriptions and illustrative material in this
literature are as accurate as known at the time of publica-
tion, but are subject to change without notice. Illustrations
may include optional equipment and accessories, and may
not include all standard equipment.
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 nd it easy to use and full of helpful operating tips and
SAFETY messages.
The operaTor'smanual
Keep it in a safe place for future reference. Contains specications and
information for operation, maintenance, storage, and assembly specic
to this product.
Copyright© 2013 By Echo, Incorporated
All Rights Reserved.
1
Power Blower
Operator's Manual
MODEL PB-251
X75300
09/06
X753118
WARNING
Read rules for safeoperation andinstructions carefully. ECHO providesthis Operator's
Manual,which must be read and understood for proper and safe operation.
PB251ef_091206.pmd
Power Blower
Operator's Manual
MODEL PB-250
WARNING
Read rules for safe operation and instructions carefully. ECHO provides this
Operator's Manual, which must be read and understood for proper and safe opera-
tion.
X750012940
XX/XX
X7501182000

3
Power Blower
oPerator'sManual
safeTy
manual safeTy symbols and ImporTanT InformaTIon
Throughout this manual and on the product itself, you will nd 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.
InTernaTIonal symbols
Symbol
description/application Symbol form/shape Symbol
description/application
Symbol form/shape
Read and understand
Operator's Manual. Fuel and oil mixture
Hot
Surface
Wear eyes, ears and
head protection
Finger Severing
Safety/Alert
Wear hand
protection. Use
two handed.
DO NOT smoke
near fuel.
DO NOT allow
ames or sparks
near fuel.
Wear slip resis-
tant foot wear.
WARNING
The safety alert symbol accompanied by the word
“WARNING” calls attention to an act or condi-
tion which CAN lead to serious personal injury or
death if not avoided.
CIRCLE AND SLASH SYMBOL
This symbol means the specic action
shown is prohibited. Ignoring these prohi-
bitions can result in serious or fatal injury.
CAUTION
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.
NOTE
This enclosed message provides tips for use, care and
maintenance of the unit.
IMPORTANT
The enclosed message provides information neces-
sary for the protection of the unit.
DANGER
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.
Symbol
description/application Symbol form/shape Symbol
description/application
Symbol form/shape
Carburetor adjustment
- Idle speed
Carburetor adjustment
- High speed mixture
Emergency stop
Carburetoradjustment
- Low speed mixture
Ignition
ON/OFF
Primer bulb
Choke Control
"Cold Start"
Position
(Choke Closed)
Choke Control
"Run"
Position
(Choke Open)
Idle Speed Fast Speed
personal CondITIon and safeTy equIpmenT
WARNING
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.

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 require-
ments 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.
Vibration and Cold
It is believed that a condition called Raynaud’s Phenomenon, which affects the ngers of certain individuals, may be
brought about by exposure to vibration and cold. Exposure to vibration and cold may cause tingling and burning sen-
sations, followed by loss of color and numbness in the ngers. 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 ll 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 ngers
followed by whitening and loss of feeling, consult your physician
before further exposing yourself to cold and vibration.
Proper Clothing
Wear snug tting, durable clothing;
• Pants should have long legs, shirts with 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..
Wear sturdy work shoes with nonskid soles;
• DO NOT WEAR OPEN TOED SHOES,
• DO NOT OPERATE UNIT BAREFOOTED.
Wear no-slip, heavy duty work gloves.
Keep long hair away from engine and air 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.
WARNING
The ignition components of this machine generate an electromagnetic eld 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 informa-
tion, ECHO does not recommend the use of ECHO products by anyone who has a pacemaker.

5
Power Blower
oPerator'sManual
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
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 win-
dows.
• Do not point blower at people or animals.
• Review area to be cleared. Look for potential hazards such as
stones or metal objects.
Keep a Firm Grip
• Hold the handle in one hand, with thumb and ngers encircling
the handle.
Keep a Solid Stance
• Maintain footing and balance at all times. Do not stand on slip-
pery, 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 ammable debris. Avoid contact dur-
ing and immediately after operation.
Repetitive Stress Injuries
It is believed that overusing the muscles and tendons of the ngers, 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
nger.
• 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 doc-
tor if you feel tingling, numbness, or pain in the ngers, hands,
wrists, or arms. The sooner RSI/CTS is diagnosed, the more
likely permanent nerve and muscle damage can be prevented.

6
equIpmenT CheCk
WARNING
Use only ECHO approved attachments. Serious injury may result from the use of a non-approved attachment combi-
nation. 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 ngers 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.

7
Power Blower
oPerator'sManual
desCrIpTIon
Locate the safety decals on your unit. Make sure the decals are legible and that you understand and follow the instruc-
tions on them. If a decal cannot be read, a new one can be ordered from your ECHO dealer. See PARTS ORDERING
instructions for specic information.
Hot Decal (near mufer and engine)
General Warning Decal (located on blower housing)
1
10
1
2
45
6
9
10 12
13
3
8
11
7

8
1. SAFETY DECAL - Lists important safety precautions.
2. STOP SWITCH - "SLIDE SWITCH" mounted on top of handle. Push forward to start and run. Slide back to stop.
3. SPARK PLUG - Provides spark to ignite fuel mixture.
4. FUEL TANK CAP - Covers and seals fuel tank.
5. RECOIL STARTER HANDLE - Pull recoil handle slowly until recoil starter engages, then quickly and rmly.
When engine starts, return handle slowly. DO NOT let handle snap back or damage to unit will occur.
6. CHOKE - Choke is located on top of the air cleaner. Move choke lever to "COLD START" ( ) to close choke
for cold starting. Move choke lever to "RUN" position to open choke.
7. 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 ows freely in the clear fuel tank return line. Pump purge
bulb an additional 4 or 5 times.
8. SPARK ARRESTOR MUFFLER OR SPARK ARRESTOR MUFFLER WITH CATALYST -The mufer or
catalytic mufer controls exhaust noise and emission. The spark arrestor screen prevents hot, glowing particles of
carbon from leaving the mufer. Keep exhaust area clear of ammable debris.
9. BLOWER PIPES - Exclusive positive locking system.
10. SAFETY DECAL - Lists important safety precautions.
11. THROTTLE POSITION LEVER - Pull back to increase engine speed. Friction washers maintain throttle lever
setting.
12. THROTTLE TRIGGER - Spring loaded to return to idle when released. During acceleration, press trigger gradu-
ally for best operating technique.
13. AIR CLEANER - Contains replaceable air lter element.
ConTenTs
1 - Power Head
1 - Blower Pipe (upper)
1 - Blower Pipe
1 - Blower Pipe (ared)
1 - Operator's Manual
- Assembly Tool (s)
1
Power Blower
Operator's Manual
MODEL PB-251
X75300
09/06
X753118
WARNING
Read rules for safeoperation andinstructions carefully. ECHO providesthis Operator's
Manual,which must be read and understood for proper and safe operation.
PB251ef_091206.pmd
Power Blower
Operator's Manual
MODEL PB-250
WARNING
Read rules for safe operation and instructions carefully. ECHO provides this
Operator's Manual, which must be read and understood for proper and safe opera-
tion.
X750012940
XX/XX
X7501182000

9
Power Blower
oPerator'sManual
assembly
WARNING
Never perform maintenance or assembly procedures with engine
running or serious personal injury may result.
InsTall blower pIpes
1. Stand unit upright on blower base.
2. Align locking ribs (A) on upper blower pipe with recesses (B) in
fan case. Assure short locking rib (C) faces downward. Slide up-
per blower pipe into fan case until a clicking sound is heard.
3. Align tabs (D) with grooves (E) and slide lower blower pipe over
upper pipe until there is light resistance. Do not force connection.
4. Hold upper pipe, and turn lower pipe clockwise, engaging posi-
tive locking channels until connection is rm. Do not force con-
nection.
NOTE
Blower use will eventually loosen pipe connections. Exclusive
positive locking system allows pipes to be tightened. If loosening
occurs, remove lower straight pipe, and install according to instruc-
tions 3 & 4.
blower pipe (upper)
blower pipe (lower)
B
C
A
D
E

10
WARNING
Moving parts can amputate ngers 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.
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.
WARNING
Fuel containing more than 25% ethanol is NOT approved for use in ECHO 2-stroke gasoline engines. Fuel con-
taining 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.
remove blower pIpes
1. Insert screwdriver (F) into hole located near lock symbol (G) to
release pipe lock.
CAUTION
Screwdriver tip may stick out opposite side of locking hole.
2. Pull pipe out of fan case.
3. Remove screwdriver.
operaTIon
WARNING
Operation of this equipment may create sparks that can start res around dry vegetation. This unit is equipped
with a spark arrestor and a spark arrestor may be required. The operator should contact local re agencies for
laws or regulations relating to re prevention requirements.
F
G