3M L-905 Disassembly

3M™ Helmet L-905 with Wide-view Faceshield
1) The L-114 is the Reinforced Chin Strap. The L-114 chin strap must be
used in the L-700 and L-900 Series Headgear in order to comply with
ANSI Z89.1-2003 Protection from Side Impacts. Replace the chin strap
when it is worn, torn or damaged. To remove it:
a. Unscrew the L-145 Knobs.
b. Remove the components of the L-146 Welding Knob and Pivot Kit.
c. Remove the chin strap attachment plate from the pocket that
contained the cam clip.
2) The L-125 is the Flame Retardant Shroud made from Nomex®
Material, the L-126 is the Inner Shroud and the L-127 is the Leather
Welding Shroud. Replace either shroud whenever it is worn excessively
or anytime it is torn. To remove it:
a. Hold the headgear upside down.
b. Lift the 3M™ Scotchmate™ flap on the left side of the shroud.
c. With a flat-blade screwdriver, loosen the hose clamp until the
shroud assembly can be slipped off the headgear.
d. The L-127 leather welding shroud has an inner shroud (L-126) that
can be zipped out for washing.
Nomex is a registered trademark of E.I. Dupont.
3) The L-153 is the Welding Shield. It should be replaced when it is
damaged. To remove it:
a. Unscrew the L-145 Welding Knobs on either side of the welding
shield and remove them from the cams.
b. Remove the welding shield.
© 3M June 2006. All rights reserved.
and Welding Shield
Disassembly
L-905 - Disassembly