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4. Idle Speed Adjustment.
• Start engine and turn “idle” speed adjustment screw (B) CW
until the saw chain begins to move, then turn the screw CCW
until saw chain stops moving. Turn screw CCW an additional
1/4 turn.
5. Accelerate to full throttle for 2-3 seconds to clear excess fuel
from engine then return to idle. Accelerate to full throttle to
check for smooth transition from idle to full throttle. If engine
stops or stalls after full warm up return the unit to your autho-
rized ECHO dealer for repair.
6. Check HI speed RPM at W.O.T. (Wide Open Throttle). HI
speed RPM should be set between 10,500 and 11,500 RPM’s.
7. Check idle speed and reset if necessary. If a tachometer is
available, idle speed should be set between 2,700 and 3,300
RPM’s.
(CAUTION)
CHAIN AND GUIDE BAR COMBINATION
The following combinations may be use on CS-3000, CS-3400 or CS-3450
ledoM
RABEDIUG
hctiP
ediuG
niahC
rebmuN
drauGkciK
rebmuN
htgneLN/POHCEN/PNOGERO
0003-SC
0043-SC
0543-SC
.ni21
.ni41
.ni61
105473021*
102573041*
107573061*
5473DCOA21
2573DCOA41
7573DCOA61
050.8/3
050.8/3
050.8/3
X54-GV19
X25-GV19
X75-GV19
94982
94982
94982
* Reduced nose radius symmetrical bars.
(OREGON name ----- Double Guard)
WARNING DANGER
Use of replacement saw chain and/or guide bar other than that specified, or operation without the “tip guard” in place may
cause severe kickback resulting in serious injury.
Only use saw chain designated as, “LOW-KICKBACK”, that meets the ANSI B175. 1-2000 standard and the ECHO guide
bar specified.
SETTING THE SAW CHAIN
For setting saw chains, round file (4 mmø: 5/32”) and flat file are used.
• To keep correct position and correct angle, use the file holder (Sure Sharp).
- Round file (P-No. 897510-03930) and flat file (P-No. 897511-00230) are optional.
- Please inquire about the file holder, if desired.
• File cutters as below.
Type : 91SG
HOLD FILE HOLDER LEVEL
Depth gauge
ONE FIFTH OF FILE DIAMETER REMAINS
ABOVE CUTTER EDGE
To sharpen other type chain, follow chain manufacturer’s instructions
30°
PUSH FILE AS SHOWN
Keep this angle
1/5
• When starting, idling adjustment speed should be adjusted not to
rotate the saw chain.
• When there is trouble with the carburetor, refer to your distributor
or dealer.