3m ultra light weight ballistic bump helmet n49€¦ · user manual 3m ™ ultra light weight...

© Ceradyne, Inc., a 3M company 2017

3M™ Ultra Light Weight Ballistic Bump Helmet N49

User Manual

User Manual 3M™ Ultra Light Weight Ballistic Bump Helmet N49

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Important Safety Information

Please read, understand, and follow all safety information contained in this User Manual prior to the use of this device. Retain these instructions for future reference.

The 3M™ Ultra Light Weight Ballistic Bump Helmet N49 provides multiuse ballistic protection at a significant weight reduction over conventional combat helmets, for improved mobility and reduced fatigue.

Physical Properties (Not for specification purposes)

Size Available M, L, XLFinished Shell <600 g (with edge trim and paint)Colors Black, Camo Green


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The 3M™ Ultra Light Weight Ballistic Bump Helmet N49 provides protection from the threats listed in the specification. Misuse or failure to follow warnings and user Instructions may result in serious personal injury or death.Only qualified and trained operators should use this helmet. Many factors uniquely within the user's knowledge and control can affect the use and performance of the helmet. The user is solely responsible for evaluating the helmet and determining whether the helmet is suitable for user's intended conditions of use.

Warning!

Product is export controlled under the U.S. Export Administration Regulations (EAR).

Intended Use

The 3M™ Ultra Light Weight Ballistic Bump Helmet N49 is designed to help provide head protection against certain ballistic threats and to help prevent trauma to the head against certain blunt impacts when used with the D3O TRUST Impact Absorbing Pad System.The helmet is tested in accordance to:• NIJ Standard 0106.01 for Ballistic Helmets with NIJ 0108.01 IIIA

Ballistic threats.• STANAG 2920 – .22 Caliber – 17 gr FSP.• AR/PD 10-02 (Latest version) for blunt impact protection.

On helmets with D3O Trust Pad System.


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Helmet Sizing

It is important that the helmet is fit properly to achieve the correct protection level for the wearer.Measuring to determine shell size:1. User must be seated in an upright position.2. Measure the maximum head circumference

(Figure 1) by pressing the tape just above the bony eyebrow ridge of the forehead and above both ears. Tape measure must be pulled tightly.

3. Using the following table, select the helmet shell size.

Helmet Shell Head Circumference

Medium Helmet Shell Up to 22.5 inches (573 mm)

Large Helmet Shell From 22.5 inches (573 mm) up to 23.5 inches (597 mm)

Extra-Large Helmet Shell Over 23.5 inches (597 mm)

Helmet must fit properly. If you experience fit problems, tightness or looseness, or helmet profile is too high or too low, refer to Fitting Guidelines. Failure to observe this precaution could result in serious injury or death to personnel.

Warning!

Figure 1


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Retention System Adjustment/Adjusting Fit:

1. Loosen all four (4) cam buckles (Items 1 in Figure 2) by pulling up on the locking tab. See Figure 3.

2. With cam buckles open, fully loosen straps by sliding buckles toward the helmet.

Figure 2 Figure 3

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➊


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Helmet must fit properly. If you experience fit problems, tightness or looseness, or helmet profile is too high or too low, refer to Fitting Guidelines. Failure to observe this precaution could result in serious injury or death to personnel.

Warning!

Retention System Adjustment/Adjusting Fit: (continued)

3. Look at the back of your helmet and identify which retention system your helmet has. See Figure 4. Note this for the instructions that follow.

X-Back Retention System Dial Adjust Retention System

Figure 4


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X-Back Retention System

1. Place the helmet on operator’s head and buckle chin strap with chin in the chin cup shown in Figure 6.

2. Slide the cam buckles on the lower webbing straps forward or backward until snug and then close the locking tab on the cam buckles.

3. Slide the cam buckles on the temple straps up or down until snug and the helmet is aligned as shown in Figure 8.

4. When satisfied with orientation and fit, close the locking tabs on the cam buckles.

5. Ensure helmet is stable and make minor adjustments as needed.

Figure 6 Figure 7

If you pull too tightly on any strap while putting on the helmet, or if you don’t position helmet on head and hold in place with one hand on top of helmet for initial adjustment, the helmet may become uncomfortable and tilted on your head and chin cup may become uncentered. Failure to observe this precaution could result in serious injury or death to personnel.

Warning!

➊


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Dial Adjust Retention System

1. Release the adjustment dial lock by pulling outward on the dial (Figure 7 item 1).

2. Place the helmet on operator’s head and buckle chin strap with chin in the chin cup shown in Figure 6.

3. Re-engage the adjustment dial locking/ratchet mechanism by pushing inward on the adjustment dial.

4. Turn the adjustment dial until the helmet fits snug on the head. Correct fit should be comfortable, but tight enough to hold helmet in place when head is shaken slightly.

5. Slide the cam buckles on the lower webbing straps forward or backward until snug and then close the locking tab on the cam buckles.

6. Slide the cam buckles on the temple straps up or down until snug and the helmet is aligned as shown in Figure 8.

7. When satisfied with orientation and fit, close the locking tabs on the cam buckles.

8. Ensure helmet is stable and make minor adjustments as needed.

Figure 8

Retention NOT adjusted correctly. Helmet Edge Trim at Ear location is

NOT Horizontal.

Retention adjusted correctly. Helmet Edge Trim at Ear location IS

Horizontal.

Retention NOT adjusted correctly. Helmet Edge Trim at Ear location is

NOT Horizontal.


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Care and Cleaning

Clean as needed after use.

Helmet Shell1. Clean with mild soap and water using a soft brush or cloth.2. Rinse thoroughly in clean water.3. Allow to air dry either indoors or in shade, away from heat sources.

Suspension (pads) and Retention Systems1. Remove pads and retention system from helmet

(see removal and installation instructions on following page).2. Hand wash with a mild detergent.3. Allow to air dry either indoors or in shade, away from heat sources.

Figure 9

A small brush is useful in removing dirt from the hook disks (item 1 in Figure 9) on the inside of the shell. Keeping the hook and loop clean will help to maintain the ability of the pads to stick to the inside of the helmet.

Recommendationi

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Inspection for Damage

• Inspect helmet prior to and following each use.• Inspect the exterior of the shell for any visual dents. If any dents

are found, remove the suspension pads and retention system and inspect the interior of the shell for a corresponding inside dent. If a corresponding interior dent is identified the helmet should be replaced. Failure to observe this precaution could result in serious injury or death to personnel.

• Inspect the exterior of the helmet for any major scratches or gouges in the surface of the helmet. Any scratch or gouge that exposes white fibers would indicate the need for helmet replacement. Failure to observe this precaution could result in serious injury or death to personnel.

• Inspect the hook and pile attachment pads for the suspension system, retention system and exterior pile pads for a secure bond to the helmet surface. Peeling or delaminating pads should be replaced with new pads.

• Inspect the screws that attach the accessory side rail to the helmet. Ensure that they are snug and have not had the threads stripped.

• Inspect the NVG shroud to ensure it is tight and secure to the helmet.

Failure to inspect the helmet, identify problems and take corrective action, as described in the section, "Inspection for Damage," could result in serious injury or death to personnel.

Warning!


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Removal and Installation of Suspension System Pads

Removal: The retention pads are held in place with hook and loop fastener. They can be removed from the helmet by slowly peeling the edges of the pad up and away from the helmet.Installation: (refer to Figure 10 for pad placement)1. Place round center pad centered in the “crown” of the helmet with

the loop (fuzzy) side toward the hook coins.2. Install remaining pads with the larger rectangular pads at the front

and rear of the helmet.3. Place the helmet on head and check for fit and make any minor pad

placement adjustments necessary for comfort.4. When satisfied with fit and comfort firmly push the pads down onto

the hook disks to ensure complete engagement of the hood and loop fastener.

Figure 10

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➍ ➌

All 7 suspension pads must be in place in the helmet. Wearing the helmet with missing suspension pads severely compromises the ability to protect the wearer. Failure to observe this precaution could result in serious injury or death to personnel.

Warning!


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Removal and Installation of Retention System

Removal: The retention system is held in place with plastic anchor clips that insert into slots on the edge trim of the helmet. See items 1-4 in Figure 10 for locations.1. Remove the front and side suspension system pads as shown on the

previous page.2. With a needle nose or long nose pliers, squeeze the tabs on the

anchor clip while pulling the clip up and out of the slot to remove. See Figure 11. (Repeat on remaining 3 clips.)

3. If your helmet has a Team Wendy Cam-Fit™ retention system (see page 4 for identification of retention system) remove the front retention plastic strap by slowly peeling it up and away from the hook disks holding it on the helmet.

Installation: If not already in place, install the round center suspension pad as described on the previous page.

Figure 11


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Removal and Installation of Retention System (continued)

1. Place helmet upside down on your lap while seated and lay the retention system across the helmet to eliminate strap twisting. Orient the nape pad toward the back of the helmet.

If your helmet has a 3M X-Back retention system, proceed to Step 4.2. Place the front retention plastic strap on the front interior of the helmet

while keeping it centered on the helmet. The strap should be placed such that it just covers the edges of the hook coins. See Figure 12.

3. Once in place and satisfied with the positioning, ensure the complete engagement of the hook and loop fastener by firmly pushing in the strap down in the area of the hook coins.

4. Insert the two rear anchor clips into the rear slots and push firmly in until you hear an audible click.

5. Repeat Step 4 for the remaining two front anchor clips. Your helmet should look like Figure 13 when complete.

6. Reinstall remaining suspension system pads as described in the section on the previous page.

Figure 12 Figure 13


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Inserting and Removing the Picatinny Adapter from Accessory Rail

1. To install the Picatinny Adaptor, squeeze the locking tabs (Items 1 in Figure 14) toward each other.

2. While continuing to squeeze the locking tabs together, slide the adaptor onto dovetail of the accessory rail to its approximate desired position. (See Figure 15)

3. Release the locking tabs and slide the Picatinny adaptor slightly forward or backward until it locks into place.

4. To remove the adaptor, squeeze the locking tabs together to release the adaptor and slide the adaptor off of the accessory rail.

Figure 15Figure 14

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➊

You may find it easier to release the adaptor locking tabs by squeezing one end first and then adding the other end, rather than trying to squeeze both tabs in simultaneously.

Tipi


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Figure 16

NVG Shroud Removal and Replacement

1. Using a hex wrench, loosen the t-nuts to remove the 3 screws holding the shroud in place. Retain screws, washers and t-nuts. (See Figure 16)

2. To replace, insert t-nuts into face of shroud.3. Place one washer on each screw. Thread screws from inside the

helmet into the t-nuts and tighten.4. If screws must be replaced, use screws the same length and

thickness as the originals in order to avoid damaging the helmet.


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Figure 17

Accessory Rail Replacement

1. Loosen the two self tapping screws holding the rail to the helmet. (See Figure 17)

2. Remove the rail by lifting the rail up and away from the helmet to clear the tabs on the helmets edge trim.

3. Insert new rail under the tabs at the front and rear of helmet.4. Replace screws, taking care not to over-tighten.

© Ceradyne, Inc., a 3M company 2017

Manufactured by Ceradyne Inc., a 3M company.

Warranty, Limited Remedy, and Disclaimer: Many factors beyond Ceradyne’s control and uniquely within user’s knowledge and control can affect the use and performance of a Ceradyne product in a particular application. User is solely responsible for evaluating the Ceradyne product and determining whether it is fit for a particular purpose and suitable for user’s method of application. User is solely responsible for evaluating third party intellectual property rights and for ensuring that user’s use of Ceradyne product in user’s product or process does not violate any third party intellectual property rights. Unless a different warranty is specifically stated in the applicable product literature or packaging insert, Ceradyne warrants that each Ceradyne product meets the applicable Ceradyne product specification at the time Ceradyne ships the product. CERADYNE MAKES NO OTHER WARRANTIES OR CONDITIONS, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OR CONDITION OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR ANY IMPLIED WARRANTY OF NON-INFRINGEMENT OR ANY IMPLIED WARRANTY OR CONDITION ARISING OUT OF A COURSE OF DEALING, CUSTOM OR USAGE OF TRADE. If the Ceradyne product does not conform to this warranty, then the sole and exclusive remedy is, at Ceradyne’s option, replacement of the Ceradyne product or refund of the purchase price.

Limitation of Liability: Except where prohibited by law, Ceradyne will not be liable for any loss or damages arising from the Ceradyne product, whether direct, indirect, special, incidental or consequential, regardless of the legal theory asserted, including warranty, contract, negligence or strict liability.

Technical Information: Technical information, recommendations, and other statements contained in this document or provided by Ceradyne personnel are based on tests or experience that Ceradyne believes are reliable, but the accuracy or completeness of such information is not guaranteed. Such information is intended for persons with knowledge and technical skills sufficient to assess and apply their own informed judgment to the information. No license under any Ceradyne or third party intellectual property rights is granted or implied with this information.

Export Control: The Ceradyne product(s) listed here may be controlled commodities under applicable U.S. export control laws and regulations, including, but not limited to, the U.S. International Traffic in Arms Regulations (ITAR) and the Export Administration Regulations (EAR). These laws and regulations may, among other things, prohibit the export and/or reexport of controlled product(s) to any or all locations outside of the United States without prior U.S. Government export authorization, the sharing of export controlled technical data and services with those anywhere who are not U.S. citizens or U.S. permanent residents, dealings with U.S. Government, United Nations and other "Restricted Parties," and proliferation activities including those that further nuclear, chemical, or biological warfare, missile stockpiling/use, or the use of rockets or unmanned aerial vehicle systems. Ceradyne and purchasers or prospective purchasers of the Ceradyne product(s) shall comply with all applicable export control laws and regulations, which may require obtaining and maintaining applicable export control authorization or licenses, and understand that the ability of a party to obtain or maintain such authorization or license is not guaranteed. The exporter of record has the sole responsibility to determine whether the export or subsequent reexport of the Ceradyne product(s) requires export authorization. An explicit condition to Ceradyne selling or making available the Ceradyne product(s) is the customer's agreement to comply with all applicable trade compliance laws and regulations.

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3M is a trademark of 3M Company.Cam-Fit is a trademark of Team Wendy. D3O is a trademark of D3O Lab.

Please recycle. Printed in USA. © 3M 2017. All rights reserved. Issued: 2/7 12046HB 98-0050-0056-1 Rev. B

Ceradyne, Inc., a 3M company3M Center 220-9E-02St. Paul, MN 55144-1000www.3M.com/Defense

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3m ultra light weight ballistic bump helmet n49€¦ · user manual 3m ™ ultra light weight...

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