Sound Measurements

Averaged Sound Level at Work Station According to EN ISO5395-1
Z425 without mower deck .............. 87.5 +/- 1 dB(A) at 3350 +/- 100 r/min engine speed
Z425 with 48 in mower deck .............. 89.7 +/- 1 dB(A) at 3350 +/- 100 r/min engine speed
Z425 with 48 in. mower deck and powerflow .............. 91.7 +/- 1 dB(A) at 3350 +/- 100 r/min engine speed
Z645 without mower deck .............. 90.5 +/- 1 dB(A) at 3350 +/- 100 r/min engine speed
Z645 with 48HC in mower deck .............. 93.5 +/- 1 dB(A) at 3350 +/- 100 r/min engine speed
Z645 with 48HC in mower deck and powerflow .............. 94.3 +/- 1 dB(A) at 3350 +/- 100 r/min engine speed