18
CLEANING AND MAINTENANCE
Use a cloth wetted with soap and warm water to clean the outer shells, headband and ear
cushions. Do not clean with solvents such as alcohol or acetone, or with waterless hand
cleaners or products containing lanolin.
NOTE:
This headset is designed to withstand brief, shallow water immersion, including saltwater.
Following water exposure and immersion, the headset should be dried using the instructions listed
above. Once dry, the user should perform a visual inspection and perform a functions test. If the
visual inspection reveals salt crystal formation, the headset should be quickly rinsed with fresh
water and allowed to dry.
If the hearing protector gets wet from rain or sweat, turn the earmuffs outwards, remove the ear
cushions and foam liners, and allow to dry before reassembly. The ear cushions and foam liners
may deteriorate with use and should be examined at regular intervals for cracking and other
damage. When used regularly, 3M recommends replacing the foam liners and ear cushions at
least twice a year to maintain consistent attenuation, hygiene, and comfort. If an ear cushion is
damaged, it should be replaced. See Headset Spare Parts and Accessories below.
REMOVING AND REPLACING THE EAR CUSHIONS
1. To remove the ear cushion, slide your fingers under the inside edge of the ear cushion and
firmly pull straight out. (H:1)
2. Replace the foam liners. (H:2)
3. Fit one side of the ear cushion into the groove of the earcup and then press on the opposite
side until ear cushion snaps in place. (H:3)
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parts may reduce the protection you receive from this product.
REPLACING MICROPHONE WINDSCREENS
IMPORTANT:
The windscreens covering the environmental mics and communications mic help
reduce the effects of wind noise on environmental listening and communications.
Inspect the headset for missing or damaged windscreens and replace as needed.
Fig. H
H:1
H:2
H:3
REPLACING THE BATTERIES
Turn the headset off before replacing the AAA batteries. Lift the battery compartment cover (A:4)
with your fingers. Position the +/- minus poles of the batteries as indicated within the battery
compartment. Replace the battery cover by pressing down firmly.
NOTE:
Remove the batteries when storing the headset for extended periods of time.
• Do not mix old and new batteries.
• Do not mix alkaline, standard, or rechargeable batteries.
• To properly dispose of the battery, follow local solid waste
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