MSA Cairns 880 Instrucciones De Instalación página 8

Installation
3.3 3-pt Chin Strap Replacement Kit for Helmet Models HP3 Defender, 360R, 360R-13
US
8
(10) To make sure that installation is correct, hold the helmet
by the chin strap. Make sure that all parts of the chin
strap stay connected.
(11) Don the helmet.
(12) Adjust the chin strap to the correct fit.
(1) Put the helmet on its crown on a flat surface or your lap,
so the front of the helmet points toward you.
(2) Use scissors to cut the old chin strap.
(3) Remove the old chin strap and discard it.
MSA Cairns Helmets - Chin Strap Replacement Kits