3M L-705 Disassembly

Hard hat with welding shield and wide-view faceshield

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3M™ Hard Hat L-705 with Welding Shield

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-140 or L-145 Knobs.

b. Remove 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-129 is the Flame Retardant Welding Bib. It should be replaced

when it is excessively worn or anytime it is torn. To remove it:

a. Pull the bib away from the two 3M™ Scotchmate™ Strips at the

rear of the headgear.

3) The L-120 is the Flame Retardant Faceseal made from SoftGuard®

DTP Disposable Thermal Protection material or the L-124 is the

Flame Retardant Faceseal. Replace either faceseal whenever it is torn,

worn excessively or has lost its elasticity. To remove it:

a. Unhook the faceseal from the tabs on each side of the extender.

b. Unhook the faceseal from the head suspension.

SoftGuard is a registered trademark of Precision Fabrics Group, Inc.

4) The L-153 is the Welding Shield. It should be replaced when it is

damaged. To remove it:

a. Unscrew the L-145 Welding Knob on either side of the welding

shield and remove it from the cam. Welding knobs should be

replaced when they are worn or missing.

b. Remove the welding shield.

and Wide-view Faceshield

Disassembly

L-705 - Disassembly

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Page 1 2) The L-129 is the Flame Retardant Welding Bib. It should be replaced when it is excessively worn or anytime it is torn. To remove it: a. Pull the bib away from the two 3M™ Scotchmate™ Strips at the rear of the headgear.
Page 2 L-705 - Disassembly c. This is the point at which the 3M™ Hard Hat L-705 can be converted to a 3M™ Hard Hat L-701 with Wide-view Faceshield. To make the headgear into a wide-view faceshield: i. Place an L-130 Wide-view Faceshield assembly onto the headgear.
Page 3 The L-162 Safety Plate. The safety plate should be replaced when it is damaged or missing. ii. The next piece in the stack is a shade glass. This is not a 3M part, but it can be purchased at a welding supply store in the shade desired.
Page 4 13) The L-115 is the Sweat Pad. Replace it when the foam on the sweat pad begins to degrade or the pad gets dirty or damaged. To remove it: a. Release the three snaps that are located around the headband. © 3M June 2006. All rights reserved.