POWER BLOWER
Operator's Manual
MODEL PB-46HT TYPE 1E
Serial Number 007116 & Up
PB-46LN TYPE 1E
Serial Number 001051 & Up
PB-60HT TYPE 1E
Serial Number 001001 & Up
WARNING
The engine exhaust from this
product contains chemicals known
to the State of California to cause
cancer, birth defects or other
reproductive harm.
W ARNING 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.
X7501123802
89861021062
04/99
2
INTRODUCTION
Welcome to the ECHO family. This ECHO product was designed and manufactured to provide long life and on-the-jobdependability. Read and understand this manual. You will find it easy to use and full of helpful operating tips and
SAFETY messages.
W ARNING DANGER
Read rules for safe operation and instructions carefully. ECHO provides this Operator's Manual which must be read
and understood for proper and safe operation.
THE OPERATOR'S MANUAL
contains specifications and information for operation, starting,
stopping, maintenance, storage and assembly specific to this product.
--
TABLE OF CONTENTS
- Stopping Engine ............................................... 1 5
Introduction .............................................................. 2
- The Operator's Manual ..................................... 2
Manual Safety Symbols and Important Information ..3
Safety .........................................................................3
- General Description ............................................3
- Decals .................................................................4
- International Symbols......................................... 4
- Equipment ...........................................................5
- Fuel ..................................................................... 5
- Personal Condition and Safety Equipment .........6
- Safe Operation .................................................... 7
- Extended Operation/Extreme Conditions ............8
Description ................................................................9
- Emission Control.................................................9
- Contents .............................................................9
Specifications........................................................... 11
Assembly .................................................................12
- Install Blower Pipes .......................................... 12
- Install Stick Handle ........................................... 12
Pre-Operation ........................................................... 13
- Fuel ................................................................... 1 3
Operation ................................................................. 1 4
- Starting Cold Engine .........................................14
- Starting Warm Engine....................................... 1 5
- Operating Blower .............................................. 1 5
Maintenance ............................................................ 1 7
- Skill Levels ........................................................ 17
- Maintenance Intervals ......................................17
- Air filter............................................................. 1 8
- Fuel Filter .......................................................... 1 8
- Spark Plug......................................................... 1 9
- Cooling System................................................. 1 9
- Exhaust System................................................. 2 0
- Carburetor Adjustment ..................................... 21
Troubleshooting ...................................................... 22
Storage..................................................................... 2 3
Servicing Information............................................... 24
- Parts.................................................................. 2 4
- Service ..............................................................2 4
- Customer Assistance ........................................ 24
- Warranty Card .................................................. 2 4
- Additional or Replacement Manuals ................24
- Manual Ordering Instructions .......................... 24
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.
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MANUAL SAFETY SYMBOLS AND IMPORTANT INFORMATION
Throughout this manual and on the product itself, you will find safety
alerts and helpful, information 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.
IMPORTANT
IMPORTANT The enclosed message
provides information necessary for the
protection of the unit.
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3
The circle with the slash symbol means whatever is shown
within the circle is prohibited.
NOTE This enclosed message provides tips
for use, care and maintenance of the unit.
SAFETY
GENERAL
IMPORTANT
See Description and Specification sections and Decals in this section for full description and illustration of power
head, and blower assembly.
DESCRIPTION
THROTTLE POSITION
LEVER/STOP SWITCH
AIR FILTER
BLOWER
PIPES
MUFFLER
RECOIL
STARTER
HANDLE
4
DECALS
Locate these safety decals on your unit. The complete unit illustration,
found in the "DESCRIPTION" section, will help you locate them.
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.
GENERAL WARNING DECAL
-WARNING-
SP ANISH DECAL
ADVERTENCIA
-DANGER-
Read and follow all safety
precautions in the operator's
manual. Operators, helpers &
bystanders can be severely
injured by blown objects and
must wear specified ANSI
Z87.1 eye protection. Always
wear hearing protection when
operating.
Esta unidad puede ser
peligrosa y producir
lesiones personales
graves si no se usa en
forma adecuada. Para
reducir el riesgo
delesionarse, los
operadores, los
ayudantes y los
espectadores deben
leer y comprender el
Manual Del Operador
que se entrega
escrito en español.
PELIGRO
HOT DECAL
ENGLISH TRANSLA TION
WARNING
DANGER
This unit can be
dangerous and cause
serious injury if
improperly used. To
reduce injury risk to
operator, helpers and
bystanders, read and
understand the
Operator's Manual,
which is provided in
Spanish.
INTERNATIONAL SYMBOLS
Symbol form/shape
Symbol
description/application
Read and understand
Operator's Manual.
Wear eyes, ears and
head protection
Symbol form/shape
Symbol
description/application
Fuel and oil mixture
Finger Severing
PB-46HT
MAXIMUM SOUND LEVEL
measured at 15 m (50 ft.) per ANSI B175.2-1996 •
70dB(A)
PB-46LN
MAXIMUM SOUND LEVEL
measured at 15 m (50 ft.) per ANSI B175.2-1996 •
Symbol form/shape
65dB(A)
Symbol
description/application
Primer bulb
Ignition
ON/OFF
Symbol form/shape
Symbol
description/application
Carburetor adjustment
- High speed mixture
Carburetor adjustment
- Idle speed
Hot
Surface
Emergency stop
Carburetor adjustment
- Low speed mixture
EQUIPMENT
Before operation a complete check of the unit must be performed:
- 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.
Spark Arrestor Muffler
- The spark arrestor muffler controls the exhaust noise and prevents
hot, glowing particles of carbon from leaving the muffler. Make
sure the spark arrestor screen is in good repair and properly seated
in the muffler. (Refer to Exhaust System Maintenance pg. 19.)
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Parts
- 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.
FUEL
WARNING 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!
- NEVER refuel a unit with the engine running.
- DO NOT fill fuel tanks indoors. ALWAYS fill fuel tanks
outdoors over bare ground.
- Securely tighten fuel cap after refueling.
- Inspect for fuel leakage. If fuel leakage is found, do not start or
operate unit until leakage is repaired.
ATTACHMENTS
AND
ACCESSORIES
After Refueling;
- Wipe any spilled fuel from the unit.
- Move at least 3 M (10 ft.) from refueling location before starting.
After use;
- DO NOT store a unit with fuel in its tank. Leaks can occur. Return
unused fuel to an approved fuel storage container.
3M
10' MINIMUM
6
PERSONAL CONDITION AND SAFETY EQUIPMENT
W ARNING DANGER
Power Blower users risk injury to themselves and others if the power blower is used improperly and
or safety precautions are not followed. Proper clothing and safety gear must be worn when operating a blower.
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 blower.
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 face mask 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, 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.
SAFE OPERATION
Determine Operation Area --
- Review area to be cleared. Look for potential hazards such as
stones or metal objects.
- Spectators and fellow workers must be warned, and children and
animals prevented from coming nearer than 15M (50 ft.) while the
blower is in use.
- Do not operate this product indoors or in inadequatly ventilated
areas..
- Take wind conditions into account: avoid open doors and windows.
- Provide all operators of this equipment with the Operator's Manual
and instructions for safe operation.
- Do not point blower at people or animals.
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Use Proper Clothing & Equipment
- Before starting the unit, equip yourself and any other person
working within the 15M (50 ft.) Safety Zone with the required
Protective Equipment and clothing.
- Keep long hair away from engine and blower intake. Retain hair
with cap or net.
- Start unit on ground with throttle at idle. Check that blower pipe
is not blocked by the ground or by any objects.
Keep A Firm Grip
- Hold handle with fingers together encircling the handle.
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 perform Maintenance or Assembly procedures with engine
running.
Noise Control
- Follow local noise regulations on sound levels and hours of
operations. Use only during appropriate hours.
- Never use a higher speed setting then necessary to perform a task.
The higher the engine speed the louder the blower noise.
- Be a good neighbor.
Avoid Hot Surfaces
- During operation, the exhaust area may become very hot, too hot to
touch. Avoid contact during and immediately after operation.
8
EXTENDED OPERATION/EXTREME CONDITIONS
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 blower 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 --
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 & force in 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.
DESCRIPTION
EMISSION CONTROL
The emission control system for this engine is EM (Engine Modification).
An Emission Control Label is located on the engine. (This is an
EXAMPLE ONLY, information on label varies by engine FAMILY).
IMPORTANT ENGINE INFORMATION
ENGINE FAMILY: SEH044U124RA
DISPLACEMENT: 44CC
THIS ENGINE MEETS U.S. EPA PH1 AND 1995-1999 CALIFORNIA
EMISSION REGULATIONS FOR ULGE ENGINES. REFER TO
OWNER'S MANUAL FOR MAINTENANCE SPECIFICATIONS AND
ADJUSTMENTS.
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CONTENTS
1-Power Head
1-Blower Pipe Assembly
1- Plastic Bag
1- Operator's Manual
1- Warranty Registration Card
1- ECHO Emissions and Warranty Statement
2- Clamps w/screws
1- Stick Handle Assembly
1-Bottle ECHO 2-Stroke Oil Mix
10
1. AIR CLEANER - Contains replaceable air filter element.
2. SPARK PLUG - Provides spark to ignite fuel mixture. Spark plug is located under the cover on LN models.
3. MUFFLER/SPARK ARRESTOR -The spark arrestor muffler controls the exhaust noise while the spark
arrestor prevents hot, glowing particles of carbon from leaving the muffler where they could possibly start a fire.
4. SERIAL NUMBER LABEL - Located on underside of unit below starter housing. Lists model number and
serial number of unit. If unit is emission certified, label identifies unit as TYPE 1E.
5. 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.
6. PRIMER BULB - Pumping primer bulb before starting engine draws fresh fuel from the fuel tank priming the carburetor for
starting. Pump the bulb 10 times until fuel is visible in clear fuel return line.
7. CHOKE - Move lever DOWN to close choke (starting position) and for emergency stopping. Move UP to open
choke (run position).
8. FUEL TANK CAP - Covers and seals fuel tank.
9. THROTTLE POSITION LEVER/STOP SWITCH - Combination stop switch and variable speed throttle lever.
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.
10. SAFETY DECAL - Lists important safety precautions.
11. HANDLE - Rotates downward for throttle control access. Spring loaded for flexible operation.
12. SHOULDER HARNESS - Used to support unit on operator's back. The straps are adjustable.
13. BLOWER PIPES - Twist lock design.
14. FLEXIBLE PIPE - Allows for full range of movement.
SPECIFICATIONS
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Dimensions
Engine
Exhaust System
Carburetor
Ignition System
Starter System
Fuel System
Maximum Air Speed
(measured at pipe end)
Average Air Volume
(measured at pipe end)
Maximum Air Volume
(measured at housing)
Length
Width
Height
Weight
Type
Bore
Stroke
Displacement
Idle Speed
Maxium Speed
Spark Plug
Fuel
Fuel/Oil Ratio
Gasoline
Oil
Fuel Tank Capacity
320 mm (12.6 in.)
460 mm (18.1 in.)
440 mm (17.3 in.)
PB-46 HT/LN TYPE1E PB-60 HT TYPE1E
(HT) 10.2 kg (22.4 lb.) HT 10.1 kg (22.2 lb.)
(LN) 11kg (24.5 lb.)
Air-cooled, two-stroke, single cylinder gasoline engine
PB-46 HT/LN TYPE1E PB-60 HT TYPE1E
40.0 mm (1.574 in.) 46.0 mm (2.811 in.)
35.0 mm (1.378 in.) 35.0 mm (1.378 in.)
44cc (2.69 cu. in.) 58.2cc (3.55 cu. in.)
*Spark arrestor muffler
ZAMA diaphragm type w/purge
2600 to 2800 RPM
6400 to 6600 RPM* 7400 to 7600 RPM*
Flywheel magneto, CDI System
NGK BPM-7Y 0.65 mm (0.026 in.)
Recoil starter
Mixed (gasoline and oil)
50:1
89 octane unleaded. Do not use fuel containing methyl
alcohol, more than 10% ethyl alcohol or 15% MTBE.
50:1 ECHO High Performance 2-Stroke engine oil
1.9 lit. (64.3 U.S. fl. oz.)
PB-46 HT/LN TYPE1E PB-60 HT TYPE1E
170 MPH 195 MPH
(miles/hour) (miles/hour)
365 CFM 405 CFM
(cubic feet/minute) (cubic feet/minute)
740 CFM 840 CFM
(cubic feet/minute) (cubic feet/minute)
* Certain internal combustion engines operated in forest, brush and/or grass-covered areas in Washington, Oregon,
Idaho, California, Minnesota, New Jersey and Maine must be equipped with a spark arrestor. This requirement also
applies to all U.S. Forest Service lands. In some of these areas, the spark arrestor system must be certified per USDA
Forest Service regulations SAEJ335. Check with your local or state authorities for specific regulations in your area.
Failure to follow these requirements is a violation of the law.
Important: This spark ignition system complies with Canadian ICES-002
12
ASSEMBLY
W ARNING DANGER
Never perform maintenance or assembly procedures with engine
running or serious personal injury may result.
INST ALL BLOWER PIPES
1. Assemble clamp (A) onto both ends of flexible pipe (B).
2 . Assemble straight pipe with swivel (C) into flexible pipe (B) and
tighten clamp (A).
3 . Assemble flexible pipe (B) to elbow (D) on blower and tighten
clamp (A).
4 . Assemble straight pipe (E) to pipe with swivel (C), turning straight
pipe clockwise to lock in place.
5 . Assemble curved pipe (F) to straight pipe (E) turning curved pipe
clockwise to lock in place.
INST ALL STICK HANDLE
1 . Remove blower pipe from swivel tube (C).
2 . Loosen wing nut (G) completely and expand open stick handle
clamp (H).
3. Align notches (J) in handle clamp with pipe pegs (K). Handle
should be angled away from operator.
C
E
F
4. Slide handle onto swivel tube (C).
5. Position handle for comfortable operation and tighten wing nut
(G).
6. Install blower pipe to swivel tube.
PRE-OPERATION
FUEL
Fuel Requirements
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Gasoline - Use 89 Octane [ ] gasoline or gasohol known to be
good quality. Gasohol may contain up to 10% Ethyl (grain) alcohol or
15% MTBE (methyl tertiary-butyl ether). Gasohol containing methyl
(wood) alcohol is NOT approved.
Two Stroke Oil - A two-stroke engine oil meeting ISO-L-EGD Standard
(ISO/CD 13738), must be used. Echo brand Premium 50:1 oil meets this
standard. Engine problems due to inadequate lubrication caused by
failure to use an ISO-L-EGD approved oil, such as Echo Premium 50:1
Two-stroke Oil, will void the two-stroke engine warranty. (Emission
related parts only are covered for two years, regardless of two-stroke
oil used, per the statement listed in the EPA Phase I/California Emission
Defect Warranty Explanation.)
Mixing - Follow directions on the oil container.
R + M
2
Handling Fuel
W ARNING 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!
• NEVER refuel a unit with the engine running.
• DO NOT fill fuel tanks indoors. ALWAYS fill fuel tanks
outdoors over bare ground.
• Securely tighten fuel cap after refueling.
• Inspect for fuel leakage. If fuel leakage is found, do not start or
operate unit until leakage is repaired.
3 M
10 ft. MINIMUM
After Refueling -
- Wipe any spilled fuel from the unit.
- Move at least 3M. (10 ft.) from refueling location before starting.
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,
air tight container. Store in a well ventilated, unoccupied building, away
from sparks and flames. Do not store fuel longer than 30 days.
14
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.
Stored two-stroke fuel may separate. ALWAYS shake fuel container thoroughly before each use.
OPERATION
- Provide all operators of this equipment with the Operator's Manual
and instructions for safe operation.
- Check unit for loose nuts, bolts and screws daily.
- 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.
- Rotate spring loaded throttle handle downward to a comfortable
operating position.
SMTWTF S
1234567
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31
STARTING COLD ENGINE
1 . Move throttle lever (A) to START/IDLE DETENT position.
2 . Close Choke - Cold Start.
Move choke (B) to "Cold Start" Position.
3. Primer Bulb -Prime.
Pump primer bulb (C) 10 times. Fuel will be visible and flow
freely in the clear fuel tank return line.
4 . Open choke (C) and if necessary, restart engine.
NOTE
Allow engine to warm up before use.
A
STARTING WARM ENGINE
1 . Move throttle lever (A) to start/idle detent position, pull recoil
starter handle (D) 5 times and engine should start. Do not use
choke (C).
NOTE
If engine does not start after 5 pulls, use cold start procedures.
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15
STOPPING ENGINE
1. Move throttle lever to idle detent position and allow engine to run
at idle for a few minutes.
2 . Move throttle lever (A) to "STOP" position.
W ARNING DANGER
If engine does not stop, move choke lever to closed position to stall
engine. Check and repair stop switch before starting engine again or
serious personal injury may result.
OPERA TING BLOWER
W ARNING DANGER
Always wear safety glasses, hearing protection, a face filter mask
and take all safety precautions or serious personal injury may result.
A
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.
16
1. Use only during appropriate hours.
2 . Make sure bevel at end of pipe faces downward.
3 . Allow the engine to warm up at a fast idle for a few minutes.
4 . Set engine speed with throttle (A).
NOTE
The blower can be run at any speed between 2600 rpm to 6600 rpm
(PB-46HT/LN); 7600 rpm (PB-60HT) once the engine has broken in
after approximately 3 fuel tanks of running time.
5 . Use lower speed to blow dry leaves from a lawn or flower bed.
6. Additional speed may be necessary to clean grass and leaves
from walks, patios and drives.
A
7. 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.
POWER BLOWER
OPERATOR'S MANUAL
17
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 LEVEL
Level 1 = Easy to do. Most required tools come with unit.
Level 2 = Moderate difficulty. Some specialized tools may be required.
Level 3 = Experience required. Specialized tools are required. Echo recommends 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
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18
AIR FILTER
Level 1.
Tools required: 25mm-50mm (1in.-2in.) medium bristle paint brush.
Parts required: None.
NOTE
Clean daily.
1. Close choke, remove air cleaner cover and air filter.
2. Brush dust off filter.
LN Models Only:
3. Wash diffuser screen in suitable solvent.
4. Dry screen before reinstalling.
FUEL FILTER
Level 1.
Tools required: Fuel line hook. 203-254mm (8in.-10in.) length of
wire with one end bent into a hook. Clean rag, funnel, and an approved fuel container.
Parts required: Fuel Filter P/N 13120530830
W ARNING 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.
SPARK PLUG
Level 2.
Tools required: 3/4" Spark Plug deep socket, Feeler gauge (preferably
a wire gauge),
Parts Required: Spark Plug, NGK BPM-7Y, P/N 99944500071
1. Remove spark plug (LN models; spark plug cover and 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 145-155 kg/cm (125-135 in. lb.).
5 . Install spark plug cover (LN models).
P
OWER
O
PERATOR'S
B
LOWER
M
ANUAL
19
IMPORTANT
Always reinstall spark plug cover on LN models, otherwise engine
cooling is greatly reduced, and will cause engine failure.
COOLING SYSTEMS CLEANING
Level 3.
Tools required: 25mm-50mm (1in.-2in.) medium bristle paint brush,
Cross Head Screwdriver, Pointed Wood Stick.
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.
0.65 mm
(0.026 in.)
INTAKE
GRILL
20
Cleaning Cylinder Fins
PB-46LN
1. Remove spark plug cover and spark plug.
2. Remove engine cover (five screws), pull cover away from engine
and tie knot in starter rope. Clean cylinder fins to allow cooling
air to pass freely.
PB-46HT; PB-60HT
1. Remove engine cover (five screws), pull cover away from engine
and tie knot in starter rope. Clean cylinder fins to allow cooling
air to pass freely.
EXHAUST SYSTEM
Spark Arrestor Screen
Level 2.
Tools required: Cross Head Screwdriver, Pointed Wood Stick, Soft
metal brush,
Parts Required: Spark arrestor screen P/N 14586221060,
(2) Gaskets P/N 14586621060
IMPORTANT
Carbon deposits in muffler will cause a drop in engine output and
overheating. Spark arrestor screen must be checked periodically.
1. Remove spark plug and engine covers (five screws).
2. Remove spark arrestor cover (A), gaskets (B) and spark arrestor
screen (C) from muffler. Replace screen if plugged with carbon
deposits.
3. Install spark arrestor screen, gaskets, and cover.
4. Install spark plug and engine covers.
CARBURETOR ADJUSTMENT - GENERAL
Level 2.
Tools required: Screwdriver, tachometer (Echo P/N 99051130017)
Parts required: none.
NOTE
Do not adjust carburetor unless necessary. If you have difficultly,
see your ECHO dealer.
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 exhaust port are free of carbon
- Blower pipes are installed
P
OWER
O
PERATOR'S
B
LOWER
M
ANUAL
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.
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 11.
22
TROUBLESHOOTING
Problem
Engine - starts hard
Engine - does not start Cause Remedy
Engi ne
Cranks
Engi ne
does not
crank
Fuel at
carbur etor
Fuel at
cylinder
Spark at end
of plug wire
Spark at plug No spark
No fuel at
carbur etor
No fuel at
cylinder
Muffle r wet
with fuel
No spark
at end of
plug wire
at plug
Fuel strainer clogged
Fuel line clogged
Carburetor
Carburetor See your ECHO dealer
Fuel Mixture is too rich Open choke
Stop switch off
Electrical problem
Interlock swi tch
Spark gap incorrect
Covered with carbon
Fouled with fuel
Spark plug defective
Internal engine problem See your ECHO dealer
Clean
Clean
See your ECHO dealer
Clean/replace air filter
Adjust carburetor
See your ECHO dealer
Turn switch on
See your ECHO dealer
See your ECHO dealer
Adjust 0.65mm (0.026i n.)
Clean or replace
Clean or replace
Replace plug
Engi ne
runs
Engi ne
runs
properly
Dies or accelerates poorly Air filter dirty
Fuel filter dirty
Fuel vent plugged
Spark plu g
Carburetor
Cooling system plugged
Exhaust port/spark arrestor
screen plugged
Blower does not work,
is weak or uneven
Blower Pipe clogged, loose or
damaged
Clean or replace
Replace
Replace
Clean and adjust/replace
Adjust
Clean
Clean
Unclog
Tighten
Replace
STORAGE
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.
W ARNING DANGER
Do not store in enclosure where fuel fumes may accumulate or reach
an open flame or spark.
2. Place the stop switch (A) in the "STOP" position.
P
OWER
O
PERATOR'S
B
LOWER
M
ANUAL
23
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 (LN models: spark plug cover and spark
plug) and pour 7cc (1/4 oz., 1/2 tablespoon) 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.
IMPORTANT
Always reinstall spark plug cover on LN models, otherwise engine
cooling is greatly reduced, and will cause engine failure.
SERVICING INFORMATION
PARTS
Genuine ECHO Parts and ECHO Re Power 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 number and Serial Number of the unit with you. You
can find all three numbers on the fan housing underneath the engine
cover. For future reference, write them in the space provided below.
Model No. _____________ Type No. ____________ SN. __________
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). When presenting your unit for Warranty
service/repairs, proof of purchase is required.
DEALER?
Call
1-800-432-ECHO
ECHO CUSTOMER ASSISTANCE --
If you require assistance or have questions concerning the application,
operation or maintenance of this product you may call the ECHO
Customer Assistance Department at 1-800-673-1558 from 8:00 am to
5:00 pm (Central Standard Time) Monday through Friday. Before calling,
please know the model and serial number of your unit to help your
Customer Assistance Representative.
CUSTOMER
ASSISTANCE
1-800-673-1558
8 - 5 Mon - Fri C.S.T.
WARRANTY CARD
This card is our means of registering all original owners of ECHO
equipment. The card plus proof of purchase provides you the assurance that authorized warranty work will be done. It also provides a
direct link between you and ECHO if we find it necessary to contact
you.
ADDITIONAL OR REPLACEMENT MANUALS
Operators and Parts Manuals are available for purchase from your
ECHO dealer or directly from ECHO. [See ordering instructions at
the end of this manual.]
ECHO Incorporated
400 Oakwood Road
Lake Zurich, IL 60047
Technical Publications Orders
ORDERING INSTRUCTIONS
To obtain a Parts Catalog or Operator's Manual send a check or money order for $2.00 per Parts Catalog or $1.50 per
Operator's Manual made payable to ECHO, INCORPORATED. State on a sheet of paper model number and serial
number of the ECHO unit you have, part number of the manual (if known), your name and address and mail to address
above:
Available Parts Lists
PB-46HT Type 1E S/N 001001 & UP Part Number 99922202821
PB-46LN Type 1E S/N 001001 & UP Part Number 99922202834
PB-60HT Type 1E S/N 001001 & UP Part Number 99922202822
ECHO, INCORPORA TED
400 Oakwood Road
Lake Zurich, IL 60047
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