3M MT7H7P3E4410-EU Service Manual download pdf (Page 12)

5. MAINTENANCE (gure J)

5.1. Removing/replacing ear cushions

(J:1) Slide your ngers under the edge of the ear cushion and pull straight out.

(J:2) Insert a new ear cushion by pressing until it snaps into place (J:3).

5.2 Cleaning

Remove the ear cushions (A:5) and attenuation cushions (A:6) if you have been wearing the hearing protector for a long

time or if moisture has gathered inside the cups. Clean and disinfect the cups, headband and ear cushions regularly with

soap and warm water. Make sure the soap is known not to be harmful to the wearer. Allow the hearing protector to dry

before you use it again.

Note! Do not immerse the hearing protector in water!

5.3 Storage and operating temperature

Remove the batteries before storing the product. Do not store the hearing protector at temperatures above +55°C, (for

example on a dashboard, parcel shelf or window sill), or at temperatures below –40°C. Do not use the hearing protector at

temperatures above +55°C, or below –20°C.

6. CONFORMANCE STATEMENT

WEEE (Waste Electrical and Electronic Equipment) Symbol:

Below requirement applies in the European Union.

Do NOT dispose your product as unsorted municipal waste!

The crossed-out wheeled-bin symbol indicates that all EEE (Electrical and Electronic Equipment), batteries and accumula-

tors must be disposed of according to local law by the use of available return and collection systems.

7. TECHNICAL DATA

7.1 Attenuation values, SNR (gure K)

(K:1) Headband

(K:2) Helmet attachment

(K:3) Neckband

7.2 Explanation of the attenuation data tables

1. Frequency (Hz)

2. Mean attenuation (dB)

3. Standard deviation (dB)

4. Assumed Protection Value (dB)

5. Weight

7.3 Explanation of the table criterion levels (table L)

H=High frequencies

M=Medium frequencies

L=Low frequencies

7.4 Explanation of the table electrical audio input level (table M)

Gives the value, dB(A), of the mean sound pressure and the sound pressure standard deviation, dB(A), at a specied

Voltage, mV RMS.

7.5 Industrial safety helmet attachment (table N)

These ear-muffs should be tted to, and used only with, the industrial safety helmets listed in the table.

7.6 Explanation of the industrial safety helmet attachment table

1. Helmet manufacturer

2. Helmet model

3. Helmet attachment (gure O)

4. Head sizes: S = Small, N = Medium, L = Large

7.7 Explanation of the testing and approval table

(P:1) This product is in conformity with the provisions set out in the following directives. Thereby it fulls the requirements

for CE marking.

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3M MT7H7P3E4410-EU Service Manual Page 12

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