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SPECIFICATIONS
○ Code “CS” of model name means “Chain saw”
Model CS51EA (40S) CS51EA (45S) CS51EA (50S)
Typ e of equipment Chain saw, portable
Engine Size (cm
3
) 50.1
Spark Plug NGK BPMR-7A
Fuel Tan k Capacity (cm
3
)530
Chain Oil Tan k Capacity (cm
3
)270
Dry Weight (kg)
(Without guide bar and chain)
5.1
Chain pitch (mm) 8.26
Chain gauge (mm) 1.27
Sound pressure level LpA (dB (A)) by ISO 22868
Equivalent
Uncertainty
104
1
Sound power level LwA (dB (A)) by ISO 22868
Measured
Uncertainty
Sound power level LwA (dB (A)) by 2000/14/EC
Measured
Guaranteed
113
2
114
117
Vibration level (m/s
2
) by ISO 22867
Front handle
Rear handle
Uncertainty
3.3
2.7
0.8
3.3
2.7
0.8
3.3
2.7
0.8
Guide bar length (mm) 400 450 500
Typ e of chain
95VPX
(Oregon)
20BPX
(Oregon)
Max. engine power
by ISO 7293 (kW)
2.5
Max. engine speed (min
-1
)13500
Idle engine speed (min
-1
) 3000
Specifi c fuel consumption at maximum engine
power (g/kWh)
439
Max. chain speed (m/sec) 26.0
Sprocket (number of teeth) 7
NOTE: Equivalent noise level/vibration levels are calculated as the time-weighted energy total for noise/vibration levels under various
working conditions with the following time distribution: 1/3 idle, 1/3 full, 1/3 racing speed.
*All data subject to change without notice.
ASSEMBLY PROCEDURES
WARNING
Never try to start engine without side case, bar and chain
securely fastened.
1. Pull the front hand guard (2) toward the front handle to check that
the chain brake is disengaged. (Fig. 2)
2
Fig. 2
2. Remove guide bar clamp nuts (3). Remove the side case (4).
(Fig. 3)
3
4
Fig. 3