Maintenance - MSA left/RIGHT Operating Manual

NOTE: Do not press the cups onto the helmet shell as this will lock the spring in the ear-muff arm, and
damage the attachment slots on the side of the helmet.
(10) Storage Position: When the helmet is not in use, lower the ear-muffs and push them inwards until
they click into place (see Fig. 7).
WARNING!
In noisy environments, the ear-muffs must be worn in the working position at all times.
The fitting of hygiene covers to the cushions may affect the acoustic performance of the ear-muffs.
5 Ear Muffs
Microphone characteristics
Electret noise cancelling microphone
Waterproof IP67
Frequency range: 100 Hz-10 kHz
Sizes
All ear-muffs of this series are 'Medium size range' ear-muffs and will fit the majority of wearers.
6 Storage
When the ear-muffs are not in use, store them without stretching the headband and without compressing
the cushions. Keep the ear-muffs dry and clean, store them at normal room temperature and do not place
them in direct sunlight.
If the product is to be stored for a prolonged period, remove the batteries to avoid damage.
7

Maintenance

Inspect the ear-muffs regularly for serviceability. Ear-muffs, and in particular cushions, may deteriorate with
use and should be examined at frequent intervals for cracking and leakage, for example at the start of every
work shift. Clean and disinfect the cups, cushions and inserts with mild soap and water only. The ear-muffs
must not be immersed in water. This product may be adversely affected by certain chemical substances.
Further information should be sought from the manufacturer. Do not subject the product to rough handling,
which can damage the electronics.
Dispose of the product and batteries in accordance with national and local regulations.
7.1 Hygiene Kit
The cushions and inserts are replaceable. Always replace worn or damaged parts. Remove the cushion by
pulling it straight out (see Fig. 8). Replace the old cushion and insert with new ones from the hygiene kit
(see Fig. 9). Use only hygiene kits from MSA.
Type
Hygiene kit consisting of one pair of cushions, distance rings and inserts
Replace at least twice a year to ensure consistent attenuation, hygiene and comfort!
7.2 Batteries
Only use batteries with 1,5 rated voltage (rechargeable or non-rechargeable). The use of rechargeable
batteries such as NiMH 1.2 V or NiCd 1.2 V will significantly reduce operating time.
Replacing the Batteries
Turn the device off during battery replacement.
The battery compartment is located in the left cup (see Fig. 10). To install new batteries, remove the lid and
insert the batteries, starting with the upper battery. Make sure that the + and – poles are correctly aligned.
Replace the lid.
left/RIGHT
Ear Muffs
Product Number
10094605
7
GB