31
Specifications
Model
External dimensions:
Length × Width × Height
mm
435 × 236 × 302
Mass:
Saw without guide bar and chain, empty tanks
kg
6.6
Volume:
Fuel tank
Tank for chain lubrication oil
Fuel (Mixture ratio)
Oil (Chain oil)
mL
mL
640
370
Regular grade petrol.
Minimum 89 Octane unleaded petrol is recommended.
Do not use fuel containing methyl alcohol or more than
10 % of ethyl alcohol.
50 : 1 (
2 %
) for ISO-L-EGD Standard (ISO/CD13738),
JASO FC, FD grade and ECHO Premium 50 : 1 oil.
Special chain oil or motor oil
Cutting length:
All specified usable cutting lengths of guide bar
mm
450, 500, 600
Chain:
Specified pitch
Specified gauge (thickness of drive links)
Type of guide bar
Guide bar gauge
Type of chain
Chain speed
at 1.33 times the maximum engine power speed
Lubrication
mm
mm
cm
mm
m/s
9.53 (3/8 inch)
1.47 (0.058 inch)
45, 50, 60 (ECHO)
1.47 (0.058 inch)
Carlton A2LM
Oregon 73LGX
28.1
Adjustable automatic oil pump and manual pump
Sprocket:
Specified number of teeth
7
Engine:
Type
Carburettor
Magneto
Spark plug
Starter
Power transmission
Decompression device
Engine displacement
Maximum shaft brake power (ISO 7293)
Recommended maximum speed with cutting attachment
Recommended speed at idling
mL (cm
3
)
kW
r/min
r/min
Air cooled 2-stroke single cylinder
Diaphragm type
Flywheel magneto, CDI system
NGK BPMR7A
Recoil starter
Automatic centrifugal clutch
With
66.8
3.26
13500
2800 (2200 - 2900)
Sound pressure level:
(ISO 22868) Lp
Aeq
=
Uncertainty
dB(A)
dB(A)
112.9
1.5
Guaranteed sound power level:
(2000/14/EC) L
WAav
=
dB(A)
118
Vibration:
(ISO 22867) Declared values a
hveq
Front handle
Rear handle
Uncertainty
m/s
2
m/s
2
m/s
2
6.4
6.3
1.3
Other devices:
Front hand guard, Rear hand guard,
Throttle trigger lockout, Chain catcher,
Chain brake, Anti-vibration device, Spiked bumper