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Versaflo
TM/MC
Welding Shield and Silver Front Panel M-153SG
Welding Knob and Pivot Kit M-146SG

Intended Use

The 3M™ Welding Shield and Silver Front Panel M-153SG and Welding Knob and Pivot Kit M-146SG are intended to be used on the 3M™ Respiratory
Headgear M-407/M-307/M-207 with select other M-Series headgear and components, and used as replacements on the M-407SG and M-409SG
respiratory helmets with Welding Shield. Included in this kit are all the components needed for a complete Pivot System replacement.
1. This product is part of a system that helps reduce exposures to certain airborne contaminants. Before use, the wearer must read and understand
these User Instructions. Misuse may result in injury, sickness or death. For correct use, consult supervisor and User Instructions, or call 3M
Technical Service in USA at 1-800-243-4630 and in Canada at 1-800-267-4414.
2. The M-Series products meet the requirements of certain industrial eyewear standards and with some models, certain industrial head protection
standards. They do not provide complete head, eye, and face protection from severe impact and penetration and are not a substitute for
good safety practices and engineering controls. Misuse may result in serious injury or death. For correct use, consult supervisor and User
Instructions, or call 3M Technical Service in USA at 1-800-243-4630 and in Canada at 1-800-267-4414.
3. When exposed to eye and face hazards, wear additional eye and/or face protectors appropriate to the hazard. ANSI Z87.1-2003, incorporated by
reference in the OSHA Eye and Face Standard 29 CFR 1910.133, suggests safety spectacles or goggles should be worn in conjunction with loose
fitting respirators if the visor can be raised from the normal position during use. Failure to do so may result in serious injury.
Severe burn injuries may result if these welding helmets are used for heavy-duty overhead welding applications where there is a potential for
falling molten metal.
ASSEMBLY
Replacing M-153SG Welding Shield & M-146SG Welding Knob and Pivot Kit or installing on an existing
M-407/M-307/M-207 Helmet
Note for M-207 & M-307 Series users: You must first detach the faceseal from the suspension headband. Re-attach before use. See M-Series User
Instructions for additional information.
Removing M-153SG Welding Shield and M-146SG Welding Knob and Pivot Kit.
- Fig. 1a shows the M-146SG Welding Knob and Pivot Kit. From left to right, top to bottom: spring loaded knob, cam and pivot post, visor frame post,
metal spring clip, back plate (Fig. 1a).
- Unscrew the spring loaded knob from each side of the headgear, and remove the M-153SG Welding Shield from the front of the M-Series
headgear (Fig. 1b). (Not required for new installations on existing helmets.)
- Unscrew and remove the cam and pivot posts on each side of the headgear using an appropriately sized manual Phillips head screwdriver
(Fig. 1c). (Not required for new installations on existing helmets.)
- With the headgear upside down and the visor frame in the up (open) position, pull the metal spring clips towards the inside of the headgear
until they touch the back plate. Pull out to remove. Gently use a tool if necessary (e.g. manual flat-blade screwdriver). Remove visor frame from
M-Series headgear (Fig. 1d).
- If replacing visor frame or welding knob and pivot kit or new installation on an existing helmet, remove post from visor frame by placing the frame on the
edge of a table, resting on the post (hole facing towards you), and press down forcefully on the visor frame with heel of hand (Fig. 1e).
- If replacing the welding knob and pivot kit or new installation on an existing helmet, push back plate out from shell slightly (towards outside of
headgear) and slide out from slot on headgear shell to remove. Gently use a tool if necessary (e.g. manual flat-blade screwdriver) (Fig. 1f).
W WARNING
W WARNING
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(English)
User Instructions

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