GENERAL INSTRUCTIONS
SHOP MANUAL
Ch 0 page 13
Rule of thumb:
Noise that is louder than 85 db (A) and that prevails
for more than 8 hours is classed as injurious. (Some
countries have other limits.) High frequency noise
(high-pitched) is more injurious than low frequency
noise (low-pitched) of the same amplitude.
Hearing protection may be needed when machine is
operated with an open operator station for extended
periods or in a noisy environment. See Operation and
Maintenance Manual for sound levels for your ma-
chine.
Risks
Partial deafness, in difficult cases impaired hearing
beyond cure.
It is impossible to train your tolerance to noise. You
may believe that you are doing that if you notice less
of the noise after some time.
IN THAT CASE YOU ARE
REALLY IN DANGER !
Probably your sense of hearing is already impaired.
Protective measures
With noise absorbers on roof and walls and screens
between work places it is easier to limit the propoga-
tion of noise. Against injurious noise you have to pro-
tect yourself with ear muffs. Ear muffs must be tested
and approved.
Protection against noise:
• Use ear muff
Injurious noise
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