Echo EA-400 User manual

EarthAuger
Operator's Manual
MODELS EA-400
EA-500
WARNING DANGER
Read rules for safeoperationandinstructions carefully. ECHOprovidesthisOperator's
Manual,whichmustbereadandunderstoodforproperand safe operation.Failureto
dosocouldresultinseriousinjury.
X7504220301 X750006081
10/05

2
Copyright© 2005 By Echo, Incorporated
All Rights Reserved.
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 this manual easy to use, and
full of helpful operating tips and SAFETY messages.
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.
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
Contents ....................................................................9
Assembly ...................................................................9
- Throttle Handle Assembly.................................9
- Auger Installation ............................................ 10
- Auger Extension Installation ........................... 10
Operation ................................................................. 11
- Fuel .................................................................. 11
- StartingColdEngine ........................................ 12
- StartingWarmEngine ...................................... 13
- Stopping Engine .............................................. 13
- Drilling ............................................................. 14
Maintenance ............................................................ 15
- SkillLevels ....................................................... 15
- Maintenance Intervals ..................................... 15
- AirFilter ........................................................... 16
- FuelFilter ......................................................... 16
- SparkPlug ........................................................ 17
- CoolingSystemCleaning................................. 17
- ExhaustSystem................................................ 18
- Carburetor Adjustment .................................... 19
Troubleshooting ...................................................... 20
Storage..................................................................... 21
Specifications........................................................... 22
Auger Accessories .................................................. 23
ServicingInformation............................................... 24
- Parts ................................................................. 24
- Service ............................................................. 24
- ECHOConsumerProductSupport................... 24
- Warranty Card ................................................. 24
- Additional or Replacement Manuals ............... 24
Specifications, descriptions, and illustrative materials 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.

EARTH AUGER
OPERATOR'SMANUAL 3
IMPORTANT Theenclosed 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
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.
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.
INTERNATIONAL SYMBOLS
Hot
Surface
Carburetor Adjustment
- Idle speed
Carburetor Adjustment
- High Speed Mixture
Description/
Application
Symbol
"WARNING, See
Operator's Manual
Wear Eye, Ear, And
Head Protection
Emergency Stop Fuel And Oil Mixture
Carburetor Adjustment
- Low Speed Mixture
Primer Bulb
Ignition
ON/OFF
Wear Hand And
Foot Protection
Safety/Alert
DO NOT smoke
near fuel.
DO NOT allow
flames or sparks
near fuel.
Keep Feet And Legs
Away From Auger
Maintain Firm Grip
With Both Hands On
Auger During
Operation
Never Operate Auger
In an Area With
Underground
Electric, Gas, Water,
Or Telephone Lines
Symbol Description/
Application Description/
Application Description/
Application
Symbol Symbol
Choke Control
"Cold Start"
Position
(ChokeClosed)
Choke Control
"Run"
Position
(ChokeOpen)
PERSONAL CONDITION AND SAFETY EQUIPMENT
WARNING DANGER
Earth Auger users risk injury to themselves and others if the auger is used improperly, or safety precautions are not
followed. Proper clothing and safety gear must be worn when operating an auger.

4
Physical Condition --
Your judgment and physical dexterity may not be good:
• if you are tired or sick,
•if you aretaking 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 Earth Auger handles. Gloves also reduce the trans-
mission of machine vibration to your hands.
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,JEWELRY.
Wear sturdy work shoes with non-skid soles;
• DONOTWEAROPENTOEDSHOES,
• DONOTOPERATEUNITBAREFOOTED.
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 sensa-
tions, followed by loss of color and numbness in the fingers. The following precautions are strongly recommended,
becausethe 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 exer-
cises during frequent work breaks, and also by not smoking.
• Limit the hours of operation. Try to fill each day with jobs where
operating the trimmer 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.

EARTH AUGER
OPERATOR'SMANUAL 5
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
riskfordevelopingaRepetitiveStressInjury (RSI). An extreme RSIconditionisCarpalTunnelSyndrome(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 move-
ment.
• 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.
WARNING DANGER
Do not operate this product indoors or in inadequately ventilated areas. Engine exhaust contains poisonous emis-
sions and can cause serious injury or death.
• Provide all operators of this equipment with the operator's manual,
and instructions for safe operation.
• Review area to be augered. Beware of underground hazards such as
electrical lines, gas lines, water mains, or cable and telephone lines.
• Never use ice auger without checking with local authorities for safe
ice thickness in lakes, ponds, and rivers.
• Spectators and coworkers must be warned, and children and animals
prevented from coming nearer than 3 m (10 ft.) while auger is in use.
• Before starting the unit, equip yourself, and any person helping you,
with the required Protective Equipment and Clothing. Do not wear
loose or baggy clothing while operating the auger.
• Do not allow children to operate auger at any time.
• Always keep hands, arms, legs, and feet clear of the rotating auger.
• Do not carry the auger between holes with the engine running.
• Always shut engine off before making any repairs.
• Always hold auger handles firmly with both hands during operation.
• Maintain stable footing and balance at all times. Do not stand on
slippery, uneven, or unstable surfaces.
• Do not operate auger in any position other than upright.
• During operation, the muffler cover area will become very hot. Avoid
contact during and immediately after operation. Allow engine and
mufflertocompletelycoolbefore performing anymaintenance.

6
EQUIPMENT
WARNING DANGER
Use only ECHO approved attachments. Serious injury may result from the use of a non approved attachment combi-
nation. Read and comply with all safety instructions listed in this operator manual. ECHO, INC. will not be respon-
sible for the failure of attachments or accessories which have not been tested and approved by ECHO.
• 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.
• Check that the auger is firmly attached and in safe operating condi-
tion.
• Ice blades are very sharp. Wear gloves when handling or replacing.
• Do not use any attachment, accessory, or replacement part unless it
is recommended in the Operator's Manual.
• Have repairs done only by an authorized ECHO Service Dealer.
EMISSION CONTROL
The emission control system for this engine is EM (Engine Modification).
EmissionControlLabel (locatedonEngine) (EXAMPLEONLY,informationonlabelvariesbyFAMILY).Check
the label on your unit for information specific to your model.
IMPORTANT ENGINE INFORMATION
ENGINEFAMILY:5EXHS.0434RA
DISPLACEMENT:42.7cc
THISENGINEMEETSU.S.EPAPH1EMISSION
REGULATIONS FORSMALLNON-ROAD ENGINES.
REFERTO OWNER’SMANUALFORMAINTENANCE
SPECIFICATIONSANDADJUSTMENTS.
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.

EARTH AUGER
OPERATOR'SMANUAL 7
5
16
2
18
12
89
7
11
3
216
15
613
18
3
812 9
7
4
3
14
17
411
10
19
20
1
13
11 18
14
P/N X505000920
Handle Decal
DESCRIPTION
Locate these safety decals on your unit. Make sure the decals are legible and that you understand the symbols, and
follow the instructions these symbols represent. If a decal cannot be read, a new one can be ordered from your ECHO
dealer. See"ServicingInformation- Parts"formoreinformation.
P/N 89016006361
Hot Decal (near muffler)

8
1. POWERHEAD- IncludestheEngine,Clutch, FuelSystem,IgnitionSystem, RecoilStarter,andAugerGearCase.
2. STOPSWITCH - "SLIDE SWITCH" mounted on top of the Throttle Trigger Housing. Move switch FORWARD to
RUN, BACK toSTOP.
3. LOOP HANDLE - Operator position includes Throttle Handle Assembly and loop handle. Helper position uses loop
handle.
4. PTO Shaft - Power Take-Off Shaft provides power to Auger accessory.
5. AUGER ASSEMBLY - Connects to PTO Shaft. Auger Assembly is purchased separately as an accessory. See page
10 for list of auger accessories.
6. SPARKARRESTOR-CATALYTICMUFFLER/MUFFLER-Themufflerorcatalyticmufflercontrolsexhaustnoise
and emission. The spark arrestor screen prevents hot, glowing particles of carbon from leaving the muffler. Keep
exhaustareaclearofflammabledebris.
7. FUELTANK-Containsfuelandfuelfilter.
8. RECOILSTARTERHANDLE-Pullhandleslowlyuntilstarterengages,thenquicklyandfirmly. Whenengine
starts, return handle slowly. DO NOT let handle snap back or damage to unit will occur.
9. FUELTANKCAP-Coversandsealsfueltankopening.
10. PRIMERBULB-Pumpingprimerbulbbeforestartingenginedrawsfresh fuelfromthefueltank primingthecarbure-
tor for starting. Pump primer bulb until fuel is visible and flows freely in the clear fuel tank return line. Pump bulb an
additional4or5times.
11. AIRCLEANER-Containsreplaceablefilterelement.
12. CHOKE - Located above air cleaner housing. Move lever to starting position ( ) (close choke) and back to run
position ( ) (open choke).
13. AIRDEFLECTOR-Deflectshotenginecoolingairawayfromoperator.
14. GEAR CASE - Sealed Gear Case provides 30.2 to 1 reduction for best combination of power and auger speed.
Requires no user maintenance.
15. THROTTLEHANDLEASSEMBLY-Containsmainoperatorcontrols-ThrottleTrigger,StopSwitch,andThrottle
TriggerLockout.
16. THROTTLETRIGGERLOCKOUT-Operationofthethrottletriggerispreventedunlessthrottletriggerlockout
lever is engaged.
17. THROTTLETRIGGER-Springloadedtoreturntoidlewhenreleased. Duringaccelerationpressthrottletrigger
gradually for best operating technique.
18. DECOMPRESSION BUTTON - Push button to assist starting. Automatically resets after engine starts and runs.
19. LOWERHANDGRIP-Usedforright-handgripbyOperatorduringtwo-manoperation.
20. SPARKPLUG-Providessparktoignitefuelmixture.

EARTH AUGER
OPERATOR'SMANUAL 9
CONTENTS
The EA-400/500 Earth Auger Powerhead, Gear Case, and Loop Handles have been factory pre-assembled for your
convenience. The EA-400 Throttle Handle requires assembly. These units are designed for one-person use as an ice
auger, and one or two-person use as an earth auger.
After opening the carton, check for damage. Immediately notify your retailer or ECHO Dealer of damaged or missing parts.
Use the contents list to check for missing parts.
1 - Power Head/Handle/GearCaseAssembly
1 - Operator's Manual
1 - Warranty Registration Card
1 - LimitedWarrantyStatement
1 - Echo Power Blend TM 2-stroke oil sample
ASSEMBLY
THROTTLE HANDLEASSEMBLY
Tools Required: Screwdriver,cuttingtool
Parts Required: Throttle Handle Assembly, screw, hex nut
1. Cut and remove one (1) white plastic shipping tie that secures
handle assembly to packing materials.
NOTE
DO NOT cut or remove black plastic ties.
2. Remove mounting screw and hex nut from throttle handle assembly,
and slide throttle handle onto mounting bar.
3. Align hole in throttle handle assembly with hole in bar.
4. Secure throttle handle to bar with screw and hex nut.
5. Tighten securely.
EA-400
EA-400
EA-500
EA-500

10
AUGERINSTALLATION
Tools Required: 6, 8, & 10 in. Earth Augers - (2) 9/16 in. Wrenches
2,3, & 4 in. EarthAugers - Hex wrench.
8& 10 in.Ice Augers -Hex wrench
Parts Required: Auger Blade Assembly - Includes:
6-10in.EarthAuger: 3/8-16x1-1/2"Bolt,3/8-16HexNut
2 - 4 in. Earth Augers: 3/8-16x1-1/4"SocketHeadScrew
8 - 10 in. Ice Augers: 3/8-16x1-1/4"SocketHeadScrew
1. Carefully place engine on a flat surface with muffler side down.
2. Remove assemblyhardwarefromauger.
3. Slide auger assembly onto gear case PTO shaft.
4. Align PTO shaft mounting hole with auger mounting hole.
5. Secure auger to PTO shaft with hardware provided, and tighten
securely.
NOTE
6, 8, & 10 in. Earth Augers hardware style shown in illustration.
2, 3, & 4 in. Earth augers and 8 & 10 in. Ice Augers use socket head
screws only.
AUGER EXTENSION
Tools Required: (2) 9/16 in. Wrenches/ Hex Wrench
Parts Required: Auger Extension, 12 or 18 in. Includes assembly
hardware.
WARNING DANGER
Themufflerand area around the mufflermay be extremely hot.
Avoid contact with this area, otherwise serious injury may result.
WARNING DANGER
Never operate auger with handles above chest height, otherwise
you could lose control, resulting in serious personal injury.
1. Drill hole into ground 15 to 20 in. deep. Stop engine, and clean off
auger mounting bolt hardware.
2. Remove auger mounting hardware. Lift engine off auger, and set
aside. The engine should be supported on the ground by the
handles and PTO shaft.
3. Removeextensionhardware.
4. Slide extension onto auger shaft, align holes, and install mounting
hardware. Tighten securely.
5. Install engine on extension shaft, and secure with hardware
removed in step 2. Tighten securely.

EARTH AUGER
OPERATOR'SMANUAL 11
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
Storedfuelages. Do not mix more fuel
than you expect to use in thirty (30)
days, ninety (90) days when a fuel
stabilizerisadded.
IMPORTANT
Stored two-stroke fuel may separate.
ALWAYS shake fuel container thor-
oughly before each use.
OPERATION
FUEL
Fuel Requirements
Gasoline-Use89Octane[R+M/2](midgradeor higher) 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)and J.A.S.O. FC Standards must be used.Echo brand 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,willvoidthetwo-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.
Handling Fuel
WARNING DANGER
FuelisVERYflammable.Useextremecarewhenmixing,storingor
handling or serious personal injury may result.
• Use an approved fuel container.
• DONOTsmokenearfuel.
• DONOTallowflamesorsparksnearfuel.
• Fuel tanks/cans may be under pressure. Always loosen fuel caps
slowly allowing pressure to equalize.
• NEVERrefuelaunitwhentheengineisHOTorRUNNING!
• DONOT fill fuel tanks indoors. ALWAYS fill fuel tanks 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 least3m (10 ft.)from refuelinglocation 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, andremix.
oitaR1:05-xiMliOotleuF
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snollaG.zo.lFretiL.cc
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8
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004

12
STARTING COLD ENGINE
1. Place auger on flat surface, recoil starter handle (A) up.
2. Stop Switch.
Move stop switch button (B) forward, away from the STOP
position.
3. Choke Lever
Move choke lever (C) to Cold Start Position ( ).
4. Decompression Button
Press decompression button (D) once.
5. Primer
Pumpprimerbulb (E) until fuelisvisible and flows freelyin the
clear fuel tank return line. Pump bulb an additional 4 or 5 times.
6. Recoil Starter
Hold loop handle securely with one hand, and pull the recoil
starter handle (A) until engine fires (5 or 6 pulls). Do not hold
engine by the throttle grip handle. DO NOT depress throttle
trigger when starting.
7. Choke Lever
Move the choke lever to the OPEN - RUN position ( ). Restart
engine if necessary and allow to warm up at idle for several
minutes.
NOTE
After engine starts, engine decompression button will automatically
reset for normal operation.
WARNING DANGER
The auger attachment should not rotate at idle. If attachment
rotates, readjust carburetor according to "Carburetor Adjustment"
instructions in this manual or see your ECHO Dealer, otherwise
serious personal injury may result.
E
B
A
C
A
D
D

EARTH AUGER
OPERATOR'SMANUAL 13
STOPPING ENGINE
1. Release Throttle.
Allow engine to return to idle before shutting off engine.
2. Stop Switch
Move stop switch button (B) backward 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 unit again.
STARTING WARM ENGINE
The starting procedure is the same as Cold Start, except DO NOT close
the choke.
WARNING DANGER
When engine starts, the auger attachment may rotate, even with the
throttle trigger in idle (released) position.
1. Stop Switch
Move stop switch button (B) forward, away from the "STOP"
position.
2. Primer
Pumpprimerbulb(E)untilfuelisvisible in the "Clear" fuel return
line.Pump bulb anadditional 4 or 5 times.
3. Decompression Button
Press decompression button (D) once.
4. Recoil Starter.
Lay the unit on a flat, clear area, and pull the recoil starter handle
(A) until the engine fires.
NOTE
If engine does not start after 5 pulls, use Cold Start Procedure.
E
B
A
D
B

14
WARNING DANGER
Never operate auger with handles above chest height, otherwise you could lose control, resulting in serious personal
injury.
WARNING DANGER
During operation, the muffler or catalytic muffler and surrounding cover become hot. Always keep exhaust area clear
of flammable debris during use, otherwise serious property damage or personal injury may result.
DRILLING
1. After starting engine, position auger upright at desired drilling
point.
2. Position feet for a stable stance, away from auger blades.
3. Firmly grip Throttle Handle Assembly and loop bar handle with
right and left hands.
4. Slowly squeeze throttle trigger to engage clutch and rotate auger.
Apply light downward pressure on handles to drill hole. Periodi-
cally, raise the auger to help clear drilling debris from the hole.
5. Overloading the auger during drilling may cause it to stop turning.
When this occurs, lift the auger to reduce the drilling load on the
engine, and allow drilling debris to be augered out of the hole.
Resumedrilling.
IMPORTANT
While drilling, the auger may twist suddenly and forcefully if it
contacts large rocks, roots, or other hidden obstacles. Release
throttle trigger immediately, and lift auger out of hole. Clear the
obstacles to prevent damage, and then resume drilling.
6. Drillingholes six inches in diameteror larger may be easierif two
people hold the handles on opposite sides.
7. Two-man Operation - The operator (A), guides the auger while
gripping the Throttle Handle Assembly and lower hand grip. The
helper (B), assists by guiding auger while gripping loop handle on
opposite side of auger.
8. Do not place excessive body weight on the unit. Allow auger to drill
with a shaving action using light downward pressure.
9. Do not use an ice auger in earth, or an earth auger in ice. A
different style of auger is required for each type of drilling.
10. Do not operate unit in excessively rocky ground.
BA
TOPVIEW-2-MANAUGEROPERATION

EARTH AUGER
OPERATOR'SMANUAL 15
MAINTENANCE
Your ECHO Auger is designed to provide many hours of trouble-free service. Regularly scheduled maintenance will help
your unit achieve that goal. To help you decide whether you want to do it yourself, or have the ECHO Dealer do it, the
skill level required for each maintenance task has been graded. 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. The various part numbers required for
each task are listed below the task headings on the following pages. If a task is not listed, see your ECHO Dealer for
repairs. See your Echo dealer for all parts.
SKILL LEVELS
Level1= Easy to do. Most required tools come with unit.
Level2= Moderate difficulty. Some specialized tools maybe required.
Level3= Experiencerequired.Specializedtoolsarerequired.ECHOrecommendsthat
the unit be returned to your ECHO dealer for servicing.
MAINTENANCE INTERVALS
/TNENOPMOC
METSYS
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LLIKS
LEVEL
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6
SHTNOM
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16
B
AIR FILTER
Level1.
Tools required: 25or50mm(1or2in.)Cleaningbrush
Parts required: Air Filters
1. Close choke (Cold Start Position [ ]). This prevents dirt from
entering the carburetor throat when the air filters are removed.
Brushaccumulated dirt fromthe air cleanerarea.
2. Unsnap the air filter cover latch(A), and open the air filter cover (B).
3. Clean the foam filter in water/detergent solution. Wrap the foam
filter in a clean cloth and squeeze (do not wring) dry. Do not oil
foamfilter. Lightlybrushdebrisfromfeltfilter.
NOTICE
If elements are fuel soaked, very dirty, deformed, or torn, replace,
otherwise engine damage may occur.
4. If elements can be cleaned and reused, be certain they:
•still fit the cavity in the air cleaner cover.
•are installed with the original side out.
FUEL FILTER
Level1.
Tools required: 200-250mm(8-10in.)lengthofwirewithoneend
bent into a hook, clean rag, funnel, and an approved
fuelcontainer.
Parts required: FuelFilter
WARNING DANGER
FuelisVERYflammable.Useextremecarewhenmixing,storingor
handling.
1. Use a clean rag to remove loose dirt from around fuel cap and
emptyfueltank.
2. Use the “fuel line hook” to pull the fuel line and filter from the
tank.
3. Remove thefilter from the line andinstallthe new filter.
C
A
D

EARTH AUGER
OPERATOR'SMANUAL 17
0.65 mm
(0.026 in.)
SPARK PLUG
Level2.
Tools Required: Spark plug wrench, feeler gauge, soft metal brush.
Parts Required: RCJ-6YSparkPlug, P/N15901731730
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. InstallSparkPlug,andtighten to150-170kg/cm(130-150in.lb.).
COOLING SYSTEM
Level2.
Tools required: Aircompressorandsafety nozzle, or: 4 mmHex
wrench, 25-50mm (1-2in.)cleaningbrush.
Parts Required: None.
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 debris 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 and cleaning of cooling fins is
considered “Normal Maintenance.” Any failure attributed to lack of
maintenance is not warranted.
1. Periodically blow dirt and debris off cooling fins with a compressor
and safety nozzle, or;
2. Remove engine and muffler covers, and brush off dirt and debris
using the medium bristle brush.

18
EXHAUST SYSTEM
Spark Arrestor Screen
Level2.
Tools Required: CrossHeadScrewdriver,SoftMetalBrush, 4mm
HexWrench
Parts Required: SparkArrestorScreen,Gasket
1. Removemufflercover(A).
2. Place piston at Top Dead Center (TDC) to prevent carbon/dirt from
enteringcylinder.
3. Remove spark arrestor screen cover (B), screen holder (C), gasket
(D),andscreen(E),frommufflerbody.
4. Clean carbon deposits from muffler components.
5. Replace screen if it is cracked, plugged, or has holes burned
through.
6. Assemble components in reverse order.
Cylinder Exhaust Port
Level3.
IMPORTANT
The cylinder exhaust port must be inspected and cleaned of excess
carbon every 3 months or 90 hours of operation to maintain this
engine within the emissions durability period. ECHO strongly
recommends that you return your unit to your ECHO dealer for this
importantmaintenanceservice.
B
C
DE
A

EARTH AUGER
OPERATOR'SMANUAL 19
CARBURETORADJUSTMENT
Engine Break-In
New engines must be operated a minimum duration of two tanks of fuel
break-in before carburetor adjustments can be made. During the break-in
period your engine performance will increase and exhaust emissions will
stabilize. Idle speed can be adjusted as required.
High Altitude Adjustment
High altitude adjustment is not required for proper operation of this
engine.
Level2.
Tools required: Screwdriver,Tachometer(ECHOP/N99051130017).
Parts required: None.
NOTE
Every unit is run at the factory and the carburetor is set in compli-
ance with emission regulations. This carburetor does not have
acceleration and high speed adjustment needles.
1. Check idle speed and reset if necessary. Idle speed screw (A)
should be set to the specifications found on page 22, "Specifica-
tions" of this manual. Turn idle screw (A) clockwise to increase idle
speed; counter-clockwise to decrease idle speed.
WARNING DANGER
When carburetor adjustment is completed, the cutting attachment
should not turn at idle, otherwise serious personal injury may
result.
A

20
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WARNING DANGER
Fuel vapors are extremelyflammable 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.