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SPECIFICATIONS
MODEL
CH66EB3 (ST)/CH55EB3 (ST)
CH50EA3 (ST)/CH62EA3 (ST)
CH78EC3 (ST)
Engine Size (ml) 21.1 23.9
Spark Plug NGK BPMR-6A NGK BPMR-6A
Fuel Tank Capacity (l) 0.35 0.35
Dry Weight (kg)
CH55EB3 (ST) ........................................4.7
CH66EB3 (ST) ........................................5.1
CH50EA3 (ST) ........................................4.3
CH62EA3 (ST) ........................................4.5
5.4
Overall cutter length
(mm)
CH50EA3 (ST) ...................................... 500
CH66EB3 (ST) .......................................650
CH55EB3 (ST) .......................................550
CH62EA3 (ST) .......................................620
770
:○
Blade type
:
△
△△
Sound pressure level
LpA (dB(A))
(ISO 10517)
CH66EB3 (ST) .........................................81
CH55EB3 (ST) .........................................85
CH50EA3 (ST)/CH62EA3 (ST) ................ 89
83
Sound power level
Lw measured (dB (A))
ISO 10517
CH66EB3 (ST) .................99
CH55EB3 (ST) ...............103
CH50EA3 (ST) ...............107
CH62EA3 (ST) ...............107
2000/14/EC
100
103
107
108
ISO 10517
101
2000/14/EC
102
LwA (dB (A)) 110 110
Vibration level (m/s
2
) (ISO 10517)
Front handle
Rear handle
CH66EB3 (ST) ........................................8.8
CH55EB3 (ST) ........................................8.0
CH50EA3 (ST) ........................................7.1
CH62EA3 (ST) ........................................8.3
CH66EB3 (ST) ......................................11.1
CH55EB3 (ST) ........................................9.7
CH50EA3 (ST) ......................................11.0
CH62EA3 (ST) ......................................10.8
7.6
12.4
NOTE
Equivalent noise level/vibration level are calculated as the time-weighted energy total for noise/vibration levels under various working
conditions with the following time distribution : ISO 10517.....1/5 idle, 4/5 racing. 2000/14/EC.....only racing.
* All data subject to change without notice.