Operation Manual
EN
SYMBOLS 3
Maximum noise and vibration levels [1]
Measured sound pressure level at ear’s operator
– Measurement uncertainty
dB(A)
dB(A)
91
3
Measured sound power level
– Measurement uncertainty
dB(A)
dB(A)
106,5
3
Garanteed sound power level dB(A 110
Vibrations level
– Front handle
– Rear handle
– Measurement uncertainty
m/sec
2
m/sec
2
m/sec
2
5.6
7,9
1.5
TECHNICAL SPECIFICATIONS
SPR 255
A 305
SPR 255 C
A 305 C
Engine (2-stroke single cylinder) – displacement cm
3
25,4 25,4
Fuel (petrol/oil) % 40 = 2,5 % 40 = 2,5 %
Power kW 0,9 0,9
Chain gauge mm 0,050” / 1,27 mm 0,050” / 1,27 mm
Idle RPM
1
/min < 3000 - 3500 < 3000 - 3500
Maximum admissible rpm without load with chain installed
1
/min 11000 11000
Fuel tank capacity cm
3
200 200
Maximum power specic consumption g/kWh 560 560
Oil tank capacity cm
3
140 140
Chain pinion teeth / pitch 6T / 3/8 8T / 1/4
Cutting length mm 220 / 270 235
Weight (with empty tank) kg 3,2 3,2
Maximum chain speed m/s 21 18,6
[1] WARNING! The vibration value may vary according to the usage of the machine and its tted equipment, and be higher than
the one indicated. Safety measures must be established to protect the user and must be based on the load estimate generated
by the vibrations in real usage conditions. In this regard, all the operational cycle phases must be taken into consideration,
such as switching o or idle running.
2. SYMBOLS
1) Warning! Read, understand and follow all
warnings.
2) Warning! Danger of kickback.
3) Use the chain saw with two hands.
4) Read operator’s instruction book before oper-
ating this machine.
5) Wear head, eye and ear protection. If you are
using the machine every day in normal con-
ditions, you can be exposed to a noise level of
85 dB (A) or higher.
6) Wear strong working gloves.
7) Wear boots or protective shoes with grippy
soles and steel toecaps.
8) Use appropriate protections for foot-leg and
hand-arm.
9) This saw is for trained tree service operators
only (see Operator’s Manual).