24
365
555
545
460 Rancher
455 Auto Tune™
RECOMMENDATION CHART
Full-time forestry use
● ●
● ●
● ●
Part-time forestry use
● ● ●
● ● ●
● ● ●
● ●
● ●
All-round landowner use
● ●
● ●
● ● ●
● ● ●
Occasional use / firewood
TECHNICAL SPECIFICATIONS
Cylinder displacement, cc
70.7
59.8
51.7
60.3
55.5
Power output, hp
4.9
4.3
3.3
3.6
3.5
Sound pressure level at operators ear, dB(A) *
102.5
106
106
104
104
Guaranteed sound power level, L
WA
dB(A)
112
118
116
114
113
Equivalent vibration level (a
hv 
,
eq
) front / rear handle, m/s² **
3.6 / 3.5
2.7 / 3.2
3.1 / 3.2
4.9 / 4.3
3.4 / 4.5
Weight (excl. cutting equipment), kg
14.1
12.3
11.2
12.8
12.8
Chain pitch
3 / 8"
.325" / 3 / 8"
.325"
3 / 8
.325 / 3 / 8
Recommended bar length, min –max, inch
16 – 28
14 – 20
14 – 20
14 – 24
14 – 20
FEATURES
Inertia chain brake
AutoTune™
TrioBrake™
Air Injection™
X-Torq
RevBoost™
LowVib
Smart Start
Magnesium crankcase
Fuel pump
Combined choke /stop control
Quick release air filter cover
Snap-lock cylinder cover
Quick-release air filter
Retained bar nuts
Visible fuel level
Adjustable oil pump
Side-mounted chain tensioner
Tool less chain tensioning
Heated handles
Heated carburettor
Horizontal rope eye let
= Available 
= Optional 
= Not available *Equivalent sound pressure level, according to ISO 22868, calculated as the time-weighted energy total for the sound pressure levels at different operating
conditions. Typical measurement of dispersion for the equivalent sound pressure level is a standard deviation of 1 dB(A). **Equivalent vibration level, as per ISO 22867, is calculated as the time-weighted energy
sum for the vibration levels at various operational states. The data presented for equivalent vibration level has a typical variation (standard deviation) of 1 m/s². Features glossary see page 184.
NOMINAL POWER
 The power rating of the engines indicated is the average net power output during normal working situations and fulfilling applicable noise regulations (at specified rpm, see owner manual)
of a typical production engine for the engine model measured to SAE standard J 1349/ISO 1585. Mass production engines may differ from this value. Actual power output for the engine installed in the final machine
will depend on the operating speed, environmental conditions and other variables.
CHAINSAWS
PRODUCT GUIDE – CHAINSAWS
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