CST-610, CST-610EVL Operators Manual

CST-610, CST-610EVL Operators Manual
 ECHO.
OPERATOR'S MANUAL
898 560-1603 0
TWIN-CYLINDER
CHAIN SAW
CST-610EVL
CST-610EVLP
CAUTION
Read Rules for Safe Operation
and Instructions Carefully
N
9.
10.
11.
12.
13.
14.
. Never operate a chain saw when you are
fatigued.
. Use safety footwear, snug-fitting clothing,
protective gloves and eye, hearing and
head protection devices.
. Always use caution when handling fuel.
Move the chain saw at least ten (10) feet,
or three (3) meters from the fueling point
before starting the engine.
. Do not allow other persons to be near the
chain saw when starting or cutting. Keep
bystanders and animals out of the work
area.
. Do not start cutting until you have a clear
work area, secure footing, and a planned
retreat path from the falling tree.
6. Always hold the chain saw firmly with
both hands when the engine is running.
Use a firm grip with thumb and fingers
encircling the chain saw handles.
7. Keep all parts of your body away from the
saw chain when the engine is running.
8. Before you start the engine, make sure the
saw chain is not contacting anything.
Always carry the chain saw with the engine
stopped, the guide bar and saw chain to
the rear, and the muffler away from your
body.
Never operate a chain saw that is damag-
ed, improperly adjusted, or is not com-
pletely and securely assembled. Be sure
that the saw chain stops moving when the
throttle control trigger is released.
Always shut off the engine before setting
it down.
Use extreme caution when cutting small
size brush and saplings because slender
material may catch the saw chain and be
RULES FOR SAFE OPERATION
15.
16.
17.
18.
19.
whipped toward you or pull you off balance.
When cutting a limb that is under tension,
be alert for spring back so that you will
not be struck when the tension in the wood
fibers is released.
Keep the handles dry, clean and free of
ol ar fuel mixture.
20.
в
Spark arrester mufflers approved to SAE
Standard J335b are available for all ECHO
chain saws to reduce the possibility of
forest fires. Do not operate the chain saw
with a loose or defective muffler. Do not
remove the spark arrester screen.
Operate the chain saw only in well venti-
lated areas.
Do not operate a chain saw in a tree un-
tess specially trained to do so.
Ail chain saw service, other than the items
listed in the Operator's Manual should be
performed by competent chain saw service
personnel. {For example, if improper tools
are used to remove the flywheel, or if an
improper tool is used to hold the fiywheel
in order to remove the clutch, structural
damage to the flywheel could occur which
could subsequently cause the flywheel to
burst.)
Guard against kickback. Kickback is the
upward motion of the guide bar which
occurs when the saw chain at the nose of
the guide bar contacts an object. Kickback
can lead to dangerous loss of control of
the chain saw.
TO AVOID KICKBACK:
— Hold the chain saw firmly with both
hands. Don't overreach.
— Don't let the nose of the guide bar con-
tact a log, branch, ground or any other
obstruction.
— Cut at high engine speeds.
— Don't cut above shoulder height.
— Follow manufacturer's sharpening and
maintenance instructions for the saw
chain.
— Use devices such as low kickback chain,
which may help to reduce the hazards
associated with kickback.
When transporting your chain saw, use
appropriate guide bar scabbard.
CONTENTS
Page Раде
RULES FOR SAFE OPERATION .......... MAINTENANCE AND CARE... .. aaa 0 11
— CARBURETOR ..................¢c... .. 1
TECHNICAL. .............. pese ea 6005 — AIR FILTER ...20222822 1111 LL a Las L an 11
— FUEL STRAINER 1224221004 4 4 4 4 a eu nu au ue 11
NOMENCLATURE OF PARTS ........ "e. — GUIDE BAR ................ aaa 11
— SPROCKET. ............ AL LL 4411800 .. 12
PREPARATION FOR USE ............... — AUTOMATICOILER ...... beeen ae nera 12
— GUIDE BAR AND SAW CHAN ............ — SPARK PLUG ie eee ea 12
— SPIKE BUMPER. 212244020114 41 a a 1 aa 1 Là — CYUNDER ANS 21110 1 1 a aa a a a a a aa a eau ue 12
— FUEL AND LUBRICANT. ........... aero
SETTING THE SAW CHAN... ........... 13
STARTING AND STOPPING... ..........
— STARTING ............. Ce eee en. TROUBLE SHOOTING. .................. 15
— STOPPING ..... c.f i itt ites enn
STORAGEAFTER USE .................. 16
CUTTING INSTRUCTION ...............
— QENERAL. . .... i iii ii dnoo CHAIN BRAKE (Model CST-810EVLP only) .., 17
— FELUNG ATREE ......... TT
— UMBING. . ............ Pas ea a 4 12 1 1 un à
— BUCKING 211044 ee 1 1 a eu a a à
TECHNICAL DATA
_ Dimension: Lx W x H (mm) 418 x 258 x 299 (16.5% 10.2"х 11.8")
— Weight: Power Head, dry (Ка) 6.3 {w/o chain and guide bar): (15.1 lbs)
Engine: Type Air cooled 2-strake horizantally opposed twin cylinder gasaline engine
Displacement (cc) 61.0 (3.7 cu. in.)
Carburator Walbro diaphragm type HDA
Magneto Flywheel magneto, CDI (Capacitor Discherge Ignition System)
Spark plug NGK BPM 7A (2pcs.)
Starter Recoil starter
В Power transmission Automatic centrifugal clutch
Fuel: Mixture ratio Mixture of regular grade gasoline amd air cooled two stroke
angina oil
{ 32 :1Ratio or 50:1 Ratio with special oil approved hy ECHO]
BB Tank capacity [7] 0.61 (20.6FL.OZ.US)
Chain oil: Chain oil Motor ofl — ‘
Tank capacity (2) — 0.30 (10.2F L.07.US)
Guide bar and Supplied separately Guide bar Chain
saw chain:
1 not in carton
Asymmetrical-Low Kick Low Kick-Guard Link Type
Type
Length Part No. — Pitch | Part No. | Links
20” 20850 : de" 76LG 70
16" 16850 3/8" 76LG 60
24” 24850 3/8" 76LG | 21
“ Standard Configuration
Lubrication
a Standard features:
| Automatic plunger type pump, adjustable and Manual
Hand guards, Front and rear Lockout, Throttle control
Mountings, Amti-vibration Latch, High speed idle
Chain catcher Chain brake.......Model CSTE10EVLP Only
NOMENCLATURE OF PARTS
Fuel cap
Hand guard
Auto-oiler
Air cleaner
Oil cap
Rear handle
Front handle
Starter grip
Sprocket guard Starter case
Choke control
Rear handle supporter
Manual oiler Throttle control
Spark plug (front) trigger
Spiked bumper Throttle contro! lateh
Saw chain
Spark plug cap (rear)
Guida bar
PREPARATION FOR USE
GUIDE BAR SAW CHAIN SPIKE BUMPER
, e Attach spike bumper to the Power head and tighten
A Ñ both hexagon socket bolts, before installing guide bar,
—— \ >>
\ MOUNTING THE GUIDE BAR AND CHAIN
a - (see illustration)
AN | y e Remove the guide bar cover and outer side plate, leaving
> = the inner side plate in position,
Tensioner DZ , > ® Mount the guide bar ensuring that the chain tensioner
— Dt fits in the hole provided.
^^ ‚ . . ... ,
he `` ® Holding the bar in this position, feed the chain around
Tensioner adjustment screw = the sprocket and into the guide bar groove.
e Fit the outer side plate, guide bar cover and nuts.
Secure the nuts hand tight.
189 LA NOTES
Guide bar holes © Guide bar studs :
> . The inner side plate is fitted with a narrow lubricating
oil slot at the top. | |
pr 2. The guide bar must be installed with the smaller nose
= radius at the top.
, 3
Tensioner . Ensure that the chain is installed with the cutters directed
J © forward on the top of the bar.
WARNING
KICKBACK 1$ DANGEROUS. The low kick asymmetrical
bar must be mounted with the reduced radius section of the
nose on top as illustrated. Incorrect installation may result
in serious or fatal injury.
_ Top y — Reduced
nose radius
CORRECT
Tensioner
INCORRECT
ADJUSTMENT, CHAIN TENSION
® Turn the adjuster screw clockwise until the chain touches
the bottom of the bar.
| Adjustment screw
TENSION ® Hold the bar nose up and tighten the chain until there is
(Turn clockwise) ME no clearance between the bar and chain tie straps.
| | ® Tighten both nuts with the bar nose held up to eliminate
clearance.
e Pull the chain around the bar by hand. Loosen the adjust-
“ment if you feel tight spots.
® Start the engine and run at low speed. Stop and readjust
if necessary,
el | CAUTION
: \ 4 1. All adjustments should be made cold.
3 2. Always wear gloves when working on chain.
> err DA 3. Do not operate with a loose chain
сени" AO ==
TE NEY CU
| Proper tension Improper tension
Check for loose nuts and screws an the handle, fan cover, etc, each time before using the chain saw.
FUEL AND LUBRICANT
e Fuel is a mixture of regular grade gasoline and ECHO brand motor oil {or an air cooled 2-cycle engine oil of a reputable
brand name).
¢ Mixture ratio is:
Gasoline 32 parts: Qil 1 part.
Gil =
2 — Fuel mixture at a ratio other than 32 : 1 may cause
Gasoline malfunction of the engine. Ensure mixture ratio is
> correct.
[NOTE]
i 50: 1 Ratio is applicable with special oil approved by
ECHO.
— Pour 1/2 of the gasoline into a safe container, add the oil and mix thoroughly,
Now add the remainder of gasoline and mix again.
— Disregard instruction on oil container.
— Oo not use motor oH other than recommended above.
— Do not mix directly in engine fuel tank,
— Avoid spilling fuel or old. Spilled fuel should always be wiped up.
Normal Use
Leaded Fuel, Regular Grade
Alternate or Emergency Use
Unleaded Fuels—Min. Octane 87 (4:5)
Do not Use Gasoho!
® Fuel Mix Chart
32:1 50:1
(US) METRIC) (US) (METRIC)
GAS ON, GAS OIL GAS Oil. GAS OIL
Gal. Floz. Liter ce, Gal. Fl.oz. Liter сс.
1 4 4 125 1 26 4 80
2 8 8 250 2 5.2 8 160
5 20 20 525 5 128 20 400
® Chain Lubricant
Proper lubrication of the chain while in operation reduces friction between the chain and the guide bar to a minimum
and assures a longer service life. Use motor oil proper quality for this purpose.
— Do not use waste or reclaimed oil to avoid various oiler problems.
— Use motor oil of the following grades:
SAE NO. 30 111111141110 in summer
ЗАЕ МО. 10 .................. in winter or when cutting resinous trees
— When refueling, also refill chain oil.
AND STOPPING THE ENGINE
STARTING
® WHEN THE ENGINE IS COLD
® Fill the fuel tank with fuel.
e Fili the chain oil tank with lubricant,
® Turn switch to START/RUN position. (FORWARD)
® Pull choke all the way out.
® Securely hold the saw as shown and pull starter handle
several times until first firing sound.
® Make sure bar and chain are not touching anything when
starting the saw.
® Push choke all the way in.
® Pull starter handle again.
WHEN THE ENGINE ISHARD TO START
ignition switch ® Press lock down while grasping throttle trigger and push in
D latch as shown.
® Pull starter handle.
Ч SE ES A ® When engine starts, immediately squeeze throttle trigger
Ч “fr Throtte 0 up, to release the latch.
ASS A E CAUTION
, PES Clutch engages and chain will rotate when engine
СЗ
is started with throttle latch engaged.
After engine starts, release throttle trigger to idle
engine.
Never use the latch for cutting.
Use it only when starting the engine.
Throttle trigger
WHEN THE ENGINE IS WARM
® Pull starter handle.
® Choke may be used if necessary but be sure to push it
back on first firing sound.
e Ensure that there is fuel and chain oil in the tanks.
e Slide stop switch to front. |
— 6 —
AA e > >
Ensure proper |
EEN
ubrica
209%,
Manual oiler 7 NÉ
button /
STOPPING
STOP
Ignition switch
в
В
e
e
UNNING
After engine starts, allow it to idle for a few minutes.
Squeeze throttle trigger gradually to increase engine
revolution,
The chain starts running when the engine reaches 3,000
rpm approximately.
Ensure proper acceleration and lubrication of chain and
bar.
And give several strokes to manual oiler button and con-
firm function, too.
Do not run the engine at high speed unnecessarily.
Release throttle trigger and turn switch back. (to STOP)
[NOTE]
When engine does not stop, pull choke all the way out to
stop engine.
Check and repair stop switch before starting the engine
again.
CUTTING INSTRUCTION
GENERAL
In all circumstances the operation of the chain saw is a
one-man job. It is difficult at times to take care for your
own safety, so don’t assume the responsibility for a helper
as well. After you have learned the basic techniques of
using the saw, your best aid will be your own good com-
mon sense... |
The accepted way to hold the saw is to stand to the left
of the saw with your left hand on the front handlebar
and your right hand on the rear handle so you can operate
the throttle trigger with your right index finger.
Before attempting to fell a tree, cut some small logs or
limbs. Become thoroughly familiar with the controls and
the responses of the saw.
the trigger to open the throttle wide open and start the cut.
A ff If the chain is properly sharpened, the cutting should be
relatively effortless. It is not necessary to press down hard
; С to make the saw cut. Pushing the saw too hard will slow
им the engine and cutting will actually be more difficult.
== Some material may adversely affect the housings of your Echo
) Start the engine, see that it is running properly. Squeeze
chain saw.
(Example palm Tree Acid, fertilizer etc.) To avoid housing
NZ deterioration, carefully remove all packed saw dust around
clutch and guide bar area and wash with water.”
CAUTION
Do not let the tip of the bar touch anything while the engine
is running. At cutting speed the chain is moving, at a high
rate of spead. Should the tip contact a limb or log while
the chain is moving, the tip will be pushed upward with
considerable force. This is known as kick-back. Avoid it!
/ Kick back
N
CAUTION
Wear suitable hearing protective device such az earmuffs
or earplugs to protect against objectionable or uncomfortable
loud noises.
Ea
FELLING A TREE
DIRECTION
OF FALL
Direction of fall Y
< Hinge
| y
First cut | E Felling cut
1 Il
> LE
Notch — —=— 2"
1
Second cut В
One-third tree
diameter qe ™
NN
{X N
Z
A falling tree can seriously damage anything it may hit — a
car, a house, a fence, a powerline, or another tree. There
are ways to make a tree fall where you want it, so first de-
cide where that is!
Before cutting, clear the area around the tree. You will
need good footing while working and you should be able
to work the saw without hitting any obstacles. Next, select
a path of retreat. When the tree begins to fall you should
retreat away from the direction of fall at a 45 degree angle
to avoid the trunk kicking back over the stump.
Begin the cut on the side to which the tree is to fail. Cut
a notch about 1/3 of the way into the tree as shown. The
position of this notch is important since the tree will try
to fall “into” the notch. The felling out is made on the
side opposite the notch and at a level about 2” above the
bottom of the notch. Do not try to cut through to the
notch with the felling cut. The remaining wood between
the notch cut and felling cut (about ?”) wili act as a hinge
when the tree falls, guiding it in the desired direction, When
the tree starts to fall, kill the engine, place the saw on the
ground and make your retreat quickly.
To fell big trees with a diameter exceeding twice the bar
length, start the notching cuts from one side and draw
the saw through to the other side of the notch. Start the
back cut on one side of the tree, pivoting the saw through
to form the desired hinge on that side.
Then remove the saw for the second cut. Insert the saw
in the first cut, very carefully so as not to cause kickback.
The final cut is made by drawing the saw forward in the
cut to reach the hinge.
Limbing a fallen tree is much the same as bucking. Never
limb on the tree that you are standing. When fimbing,
caution is the word. Be careful of the tip touching other
limbs. Always use both hands.
| ml ———
——.]] ]—[=—— tra — ep pe
nF PE — ee,
re — ni 2 TEN
— —— —
m — pu —— ——]]—,——————;—]——
FIRST CUT
Board or flat stones
Kickback Motion:
e Improper thrust cutting.
Don't cut with the saw overhead or the bar in a vertical
position. If the saw should kick back you may not have
good enough control to prevent possible injury.
Bucking is the sawing of a log or fallen tree into smaller
pieces. There are a few basic rules which apply to all buck-
ing operations.
Keep both hands on the handles at ail times.
Support logs if possible.
When cutting on a slope or hillside, always stand uphill.
Keep in mind that the wood is heavy and that it will bend
and pinch the saw if improperly supported.
The trunk will weaken at the point where you make the
cut unless the tree is lying on perfectly flat ground or sup-
ported as shown.
If you make the cut with the tree on the ground, don't let
the saw's chain dig into the earth; it is harmful for the saw,
and you stand a good chance of being struck by flying
debris. To cut the trunk, use the bucking and two-cut
sequence shown. The first cut should be no deeper than
one-third the trunk diameter.
WARNING: KICKBACK IS DANGEROUS
® Kickback is generated when rotation of the chain is
arrested for some reason. The most dangerous effect
of this action occurs when the nose of the bar contacts
another object, the chain is momentarily stopped and
all the energy of engine throws the bar upwards and back-
wards towards the operator.
e The chain saw industry and government agencies have
attempted to prescribe various safety devices, but the best
protection is to avoid kickback.
® Comply with the Safety Precautions as listed on page 1
of this manual.
— 10 —
MAINTENANCE AND CARE
CARBURETOR
ens e Do not adjust the carburetor unless necessary.
® To adjust the carburetor, proceed as follows:
— Low speed needie: (L) 1 1/8-1 1/4
— High speed needle: (H) 1 1/8~1 1/4
— Screw in the needles until lightly seated and return
indicated turn above.
® Turn idle adjust screw (KNOB) clockwise until chain
begins to turn, then back screw 1/2 turn.
[CAUTION]
Always open High speed needle (H) more than 3/4 turn.
® Check before every use.
® Loosen thumb bolt, and remove air cleaner cover and
filter.
® Brush off dust lightly, or wash it in suitable cleaning fluid
if necessary. Dry it completely before installation.
Air filter —— |
Air cleaner cover 7 |
FUEL STRAINER
e Check periodically.
— Do not allow dust to enter fuel tank.
— Clogged strainer will cause difficulty in starting engine
or abnormalities in engine performance.
— Remove the end of fuel pipe from carburetor, push
it slightly toward fuel tank.
— Pick up the fuel strainer through fuel inlet port with a
piece of steel wire of the like.
(Take care that the pipe does not get into the tank.
After cleaning strainer, replace the removed pipe.)
— When the strainer is dirty, wash it in suitable cleaning fluid.
— When the inside of the fuel tank gets dirty, it can be
cleaned by rinsing the tank out with gasoline.
(Fuel tenf cap
TE
GUIDE BAR
e Clean before using.
| ©) Вр — Clean the groove of the guide bar with, for example,
Guide bar holes a small screw driver.
— Clean oil holes with a wire.
® Clean sprocket, clutch and bar mount area before istalling.
— 1] —
SPROCKET (Rim type)
The damaged sprocket will cause premature damage or
wear of saw chain.
Check sprocket when you install new chain. Replace it
if worn.
Sprocket
= —
N FÜ ES
Spur-sprocket Clutch drum >
type
7
AUTOMATIC OILER
for om By ® The discharge volume of the automatic oiler is adjusted
to 8—12 cc/min. approx. at 8000 rem, prior to shipment
from factory. |
— Oil discharge adjusting screw is located at the bottom
of the machine.
— To increase the delivery volume, turn the adjusting
screw clockwise. When the screw touches stopper
and stops, this position indicates maximum discharge
volume. (20—25 cc/min. 8000 rpm)
— Do not turn the adjusting screw beyond the max. or
min. limit of volume adjustment.
OIL STRAINER
A E - ms Fo e Check periodically.
NT а oy de — Do not allow dust to enter into oil tank.
— Clogged oil strainer will affect the normal {lubricating
system,
— Pick the strainer up through oil filling hole with a p-
iece of steel wire or the like.
— If the strainer is dirty, wash it in suitable cleaning fluid
— When the inside of the tank gets dirty, it can be clean-
ed by rinsing the tank out with gasoline.
Two spark plugs are located on front and rear part of the
power head.
Remove the spark plug cover before removing front
spark plug.
® Check periodically.
— The standard spark gap is 0.55—0.65 mm (.024—.028 in.).
— Correct the spark gap if it is wider or narrower than
the standard gap.
® Fastening torque = 145-155 kg-cm (125-135 in-1b).
ny
LL
Vi —
em anti
Sry, by.
Treg, ina
Ena,
Vi. ive
pren ios
iggy, Ty
Ty, TT
Trou, ny
gy Sot
Spark plug cover
— 12—
MAGNETO
® The unit is incorporated with magneto of C.D.1. (Capa-
citor Discharge Ignition) system, which does not require
adjustment of ignition timing and the contact breaker
point gap.
e Ensure wire connections and couplers assembling,
CYLINDER FINS MUFFLER
* Check periodically. e Check periodically,
e Clogged fins will result in poor engine cooling. e Carbon deposit in the cylinder exhaust port and muffler
® Remove dirt and dust from between fins to let will reduce the engine output,
cooling air pass easily. ® Remove the muffler and clean the cylinder exhaust
port, Be careful not to damage the cylinder.
[NOTE]
Use wood or non-ferreous tools to prevent damage to hard
chromium plating,
SETTING THE CHAIN ( For the Oregon 76 LG type chain }
NOMENCLATURE OF PARTS
® Guard links reduce the potential
PRESET of kickback.
/” TIE STRAP
LEFT HAND
DRIVE LINK CUTTER
CUTTER PART NAMES
y Top Plate
Z GUARD LINK
RIGHT HAND
CUTTER
Pitch = One half of Gauge Depth gauge setting
this distance
||
(1
— —
e Gauge is thickness of drive links. 1=» Depth gauge controls the cut- -
ting depth,
— 13 —
Important points for proper maintenance of saw chain:
* Keep the cutters sharp at atl times.
e Keep the left and the right cutters properly aligned.
— Please note that blunt or irregular cutters will result in poor cutting performance, increased vibration of chains
and premature breakage of the saw chain.
e Drive link serves to remove sawdust from the groove of the guide bar. Therefore, keep the lower edge of the drive
link, indicated by the arrow, sharp.
Sharpen
lower edge
27
— When setting of the chain is finished, soak it in oi and wash away filings completely before using.
— When chain has been filed on the bar, supply sufficient oil to it, rotate the chain slowly to wash away the filings
before using again,
— If the chain saw is operated with filings clogged in the groove, the saw chain and the guide bar will be damaged
prematurely.
— if the saw chain becomes soiled with resin, for instance, clean it with kerosene and soak it in oil.
For setting saw chains, round file (5.5 mme: 7/32") and flat file are used.
e To keep correct position and correct angle, use the file holder (Sure Sharp).
— Round file (P.No. 897510-00230) and flat file (P-No. 897511-00230) are optional.
— Please inquire about the file holder, if desired.
ot
Keep this
angie
PUSH FILE AS SHOWN HOLD FILE HOLDER LEVEL. ONE FIFTH OF FILE DIAMETER
REMAINS ABOVE CUTTER EDGE
® Place the depth gauge too! firmly on guide bar so that depth gauge protrudes. Then file top of depth gauge with flat
the file until flat with top of the depth gauge tool,
— Be sure to round off the frant edge of the depth gauge.
Depth gauge 100d
- Round off
. - the edge
Remove until
— tiat with too]
® Properly filed cutters are shown betow.
{Top plate angle} (Side plate angle) {Top plate cutting angle) {Depth gauge)
>
, 86° | 0.64 mm {026 in}
$ N Parallel
+ —
° 35°. l Во
[NOTE]
These angles are referred to as Oregon 76 LG.
Ta sharpen other follow chain manufacturer's instruction.
~ 14 —
TROUBLE SHOOTING
Poor performance of the engine and or cutting mechanism can normally be prevented by carefully following
instructions,
Poor performances can easily be corrected even by a beginner.
When the engine does not function properly Check the following three (3) points first.
® |[s engine compression adequate?
e |s fuel system in good condition and is enough fuel being supplied?
e lselectrical system in good condition and is spark plug operating normally?
When there 15 serious trouble with the unit, do not try to repair it yourself but have your distributor or dealer do it for
vou, For detailed TROUBLE SHOOTING refer to tables 1 and 2. Locate the problem on the following charts and repair
ds necessary.
Table 1
Engine cranks
J
Engine does not start (or, is difficult to start)
[er is fuel in the tank
Fuel is reaching carburetor
Fuel is reaching cylinder
Fuel 15 not Fuel strainer clogged „2..2...
reaching o.oo [
carburator Fuel pipe clogged .................
Fuel is not Suction insufficient 11...
reaching .... Strainer clogged Lee,
cylinder
Carburator out of arder ........
C.D.l. module defective
kgnition coil defective
No spark at high |
tension cord end High-tension cord
connection defective
Switch is grounded ses
Insulator cracked
Spark gap INcorrect (2.
There is spark at high __
tension cord end
|
No spark at plug ........
Covered with carbon res
Fouled with fuel
Starting procedures
[ Starting Procedures eee
cr .
= Low and high speed needle
= setting too lean CU
m
Metering fever spring
— —
= Fuel does ‘00 Strong Te
a not keep
wn running Fuel pump diaphragm
as un defect ve EEC aE.
к. =
© 2 Fuel passage clogged
== 3 with dust ZAR kdpaonaamr=kLSEkLLANNE
L e.
a Accelera Fuel leaking from fixing
Ch E a aaa mm, EEE
= 5 tion and surfaces of carburetor
= = low speed ......... Air valve, fuel tank cap
wo function does not work normally 7
f Ive
detect Fuel pump does not operate...
Bn Fuel inlet needle valve
Carburetor | clogged with dust UM
overflow Metering lever spring not
placed in dent of lever
Muffler sticky
with fuel e
Bearing damaged ...................
Engine does Piston and/or cylinder seized.
notcrank eee
Crankshatt worn
Crankshaft contacting
cran kcase PA
— 15 —
Wire connection defective .....
Clean.
Clean.
Make sufficient.
Clean,
Disassemble and check.
Remove and replace.
Remove and replace.
Reconnect.
Repair as necessary
Switch on.
Replace plug,
Adjust
Clean or replace,
Clean or replace.
Start correctly.
Reacdjust.
Readjust
Replace.
. Disassertble and ciean.
Retighten all screws,
Replace or Clean.
Check impulse drilling,
Clean,
... Correct,
This 15 because fuel mixture 15
too rich.
Start the engine several times
“wath choke rod fully open anc
run at fast dle until engine does
not smoke,
Oisassemble and replace.
Disassemble and replace,
Disassemble and replace,
Disassemble and replace.
Table 2
Improper fuel, used ..............
Spark plug defective (burnt)...
Engine
overheated As cooting fins clogged, air
does nat pass well
Excessive deposits in
combustion chamber ""''7”"'
Firing function
defective TL Plug damaged or fouled ........
Combustion poor due to
defective wiring
|
Output (engine speed) insufficient
High-speed needle
setting incorrect
Carburetor
defective Carburetor overflow .............
Air cleaner clogged ...........
Compression insufficient
piston ring stuck or worn
out)
t= Cylinder chromium piating
peeled or warn out re
Other
troubles -——
—] == Exhaust port clogged with
carbon EE EE LEE EEE EE EEE EE LAE ETEETIEEN
— Throttle is not fully open .....
Chain tension inNCOrrect.........
Engine keeps running, but chain does not cut clean
—— Chain does not
cut clean Chain wrongly set. ..............
Depth incorrect... e... eee.
Chain saw pressed against
=
jor
=
=
E"
2
= —— Chain stops A tree too firmly
L —.s - — {Clutch slips}
Ё futch shoe worn out ........
"Em
=
d eo.
— —HNo oil in tank LL... sense naua ne
—
=
= Oil delivery
o Chain poorly INCOrrect
lubricated
== contaminated with dust ..,
mo 1] visCosity inappropriate ....
Use fuel with correct mixing ratio. Never
use gasoline of poor quality.
Replace.
Clean fins.
. Disassemble and remove carban.
Replace or clean,
. Check wiring.
‚ Readjust.
Rafer to Table 1.
.. Clean as necessary.
Disassemble, check and replace
if necessary.
. Heplace cylinder,
. Clean as necessary.
Readjust
Readiust.
. Press lightly,
. Replace.
Refill.
. Adjust,
Rinse tank and fill with new oil.
Use ail with correct viscosity
for summer or winter.
STORAGE AFTER USE
e Inspect and adjust every part of the chain saw.
— Completely clean every part, and repair, if necessary.
— Apply thin coating of oil on metal parts to prevent rust.
— Remove chain and guide bar, apply them sufficient oil coating and wrap them up in plastic sheet.
e [Drain fuel tank, pull starter slowly a few times to drain fuel from carburetor.
® Pour a little amount of clean motor oil into spark plug hole pull starter and crank the engine
until the TOP DEAD CENTER,
® Store in a dry area, free from dust.
— 16 —
CHAIN BRAKE (CST 610EVLP only)
The installation of a chain brake may be mandatory by law or as stipulated by insurance regulations in your area of operation.
You should enquire through local government offices, your employer or your local dealer to ensure that your chain saw con-
forms to the required safety standard. Echo chain brakes have been designed and tested to comply with international safety
standards as follows.
Canada:
USA:
CSA Standard Z 62.1 CHAIN SAWS
WARNING:
e ANSI Standard B175.1 stipulates that the brake shall stop the chain in 0.10 seconds {one tenth} at an engine speed of
8000 RPM.
ANSI Standard B 175.1 Safety Requirement for chain saws
It is the responsibility of the Owner/Operator to ensure that the brake is serviced, adjusted and tested
strictly in accordance with the instructions as detailed herein in order to ensure that the brake performance is maintained
in compliance with the Standard B 175.1.
Echo recommends that the chain brake should be serviced
by an authorized Echo servicing dealer.
OPERATION
The chain brake is engaged when the lever is in the for-
ward position. The chain brake is disengaged when the
lever 1s in the center position.
NOTE
The third position of the lever does not affect
the brake and is intended only to provide better
access to the fuel & oil caps.
TESTING THE BRAKE
e Start the engine on a solid level surface and run at a fast
*
+
idle until warm.
Hold the saw firmly by the handles and accelerate the
engine to a fast idle.
Slowly operate the chain brake lever while holding the
saw firmly on the ground. When the brake lever trips,
the chain should stop. Immediately release the throttle
trigger.
CAUTION
DO NOT ALLOW THE SAW TO TIP FOR-
WARD IN ORDER TO AVOID DAMAGE TO
THE CHAIN.
If the chain does not stop Immediately return the saw
to your authorized Echo dealer for repair.
RRR REE EEE EEE EE IE EE ET ETT I ET IT TI I TEE EY ET MT I EI TT TITER EEE EE EE EE EE EEE EE NE EE El EE EEE EE EEL ARE ELE EEE LUN
® Set the lever in the center position before starting to cut.
e |f the brake is trinped by kick back reaction, the chain
will stop. immediately release the throttle to avoid pos-
sthle damage to the engine or clutch.
® Do not attempt to start or operate the engine with the
brake engaged.
MAINTENANCE
e Remove the guide bar cover. |
® Remove the plastic cover over the brake.
e Clean oil and saw dust from complete chain brake area.
® Examine the drum, brake band and linkage for any in-
dication of wear.
ADJUSTMENT
e Loosen the screw H securing the adjusting cam G .
® Rotate the cam counter clockwise to tighten the brake
band. The band should not contact the drum.
e Tighten the securing screw (H and again ensure that
the band does not touch the drum.
e
Check that the brake lever is spring locked firmly in each
position.
tf the lever will not move fully forward into thé BRAKE
ON position, readjust the band to provide more clearance.
— 17.
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertising