taBLE oF ContEntS
Foreword ........................................................................................................................................... 2
Contact Information ...................................................................................................................... 2
System Description ...................................................................................................................... 2
Limitations of Use ........................................................................................................................ 4
Additional Certifications ................................................................................................................ 5
Operating Instructions ........................................................................................................................ 5
Unpacking .................................................................................................................................... 5
Assembly ..................................................................................................................................... 5
Donning & Fitting ......................................................................................................................... 6
Inspection & Maintenance ................................................................................................................ 10
M-925 and M-927 Visors ........................................................................................................... 11
M-919 Visor Frame Buttons ........................................................................................................ 13
M-953 Ratchet ........................................................................................................................... 15
M-445 M-446, M-447 & M-448 Outer Shrouds (M-400 Series) .................................................. 18
Accessories ..................................................................................................................................... 20
M-958 Chin Strap....................................................................................................................... 22
Specifications .................................................................................................................................. 27
Troubleshooting ............................................................................................................................... 30
Warranty .......................................................................................................................................... 30
Limitation of Liability ........................................................................................................................ 30
For More Information ....................................................................................................................... 30
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