Captain 273 4WD - Battery; Risks Driving from Exposure to Noise

OPERATOR MANUAL |CAPTAIN 273 4WD 36
2.31 Road Regulations
When Stopping at any time, bring the tractor to a secure halt (DO NOT park on a slope), apply the parking
brake, engage the Park lock (if installed), disengage the PTO, Place all gear shift levers in neutral ,lower
the implement to the ground , stop the engine and remove the key BEFORE leaving the seat
2.32 Battery
Decal on battery. (Fig 2.27 & 28)
2.33 Risks deriving from exposure to noise:
Noise characteristics and measurement
• Noise is a pressure variation in an elastic medium, generally the air, produced by the variation of a
material body (source) that determines an undesired and often annoying acoustic sensation. Noise
is mainly characterized by;
• Sound intensity or level: expresses the entity of the pressure variation due to the sound wave.
Measured in decibels (dB), it doubles the sound intensity and, thus, the energy that reaches the ear.
• How the risk is evaluated: The higher the sound level and exposure time, the greater the noise risk
will be:
• LAeq: (Equivalent continues weighted level A): this is a sound level measurement that takes into
account noise fluctuations and the varying sensitivity of the ear to the frequencies: LAeq is measured
with a sound: level meter;