Article: Bad harness causes bad headaches.(M40/M42-Series Masks ...)(Brief article)

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* Check the head harness' elasticity every time you do PMCS. Gently stretch all the harness straps to make sure they still have spring. If they don't easily snap back, get your CBRN specialist to replace the harness ASAP.

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* Make sure the head harness elastic webbing is on top and its seams point out. If you have the harness inside-out, the crosspiece rubs a sore spot on your head.

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* Tighten the head harness snug, but not so snug you can't stick a finger under each strap. If the straps are tighter than that, count on a headache. Once you have the straps ...

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