3M Ultra Light Weight Ballistic Bump Helmet N49 Operating instructions

3M
Brand
3M
Model
Ultra Light Weight Ballistic Bump Helmet N49
Type
Operating instructions
© 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
2
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 signicant weight reduction over conventional
combat helmets, for improved mobility and reduced fatigue.
Physical Properties
(Not for specication purposes)
Size Available M, L, XL
Finished Shell <600 g (with edge trim and paint)
Colors Black, Camo Green
User Manual 3M
™
Ultra Light Weight Ballistic Bump Helmet N49
3
The 3M
™
Ultra Light Weight Ballistic Bump Helmet N49 provides protection
from the threats listed in the specication. Misuse or failure to follow
warnings and user Instructions may result in serious personal injury or death.
Only qualied and trained operators should use this helmet. Many factors
uniquely within the user's knowledge and control can aect 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.
User Manual 3M
™
Ultra Light Weight Ballistic Bump Helmet N49
4
Helmet Sizing
It is important that the helmet is t 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 t properly. If you experience t problems, tightness or
looseness, or helmet prole 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
User Manual 3M
™
Ultra Light Weight Ballistic Bump Helmet N49
5
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
➊
➊
User Manual 3M
™
Ultra Light Weight Ballistic Bump Helmet N49
6
Helmet must t properly. If you experience t problems, tightness or
looseness, or helmet prole 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
User Manual 3M
™
Ultra Light Weight Ballistic Bump Helmet N49
7
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 satised with orientation and t, 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
User Manual 3M
™
Ultra Light Weight Ballistic Bump Helmet N49
8
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 ts snug on the head. Correct
t 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 satised with orientation and t, 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.
User Manual 3M
™
Ultra Light Weight Ballistic Bump Helmet N49
9
Care and Cleaning
Clean as needed after use.
Helmet Shell
1. 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 Systems
1. 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.
Recommendation
i
➊
User Manual 3M
™
Ultra Light Weight Ballistic Bump Helmet N49
10
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 identied 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 bers 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
!
User Manual 3M
™
Ultra Light Weight Ballistic Bump Helmet N49
11
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 t and make any minor pad
placement adjustments necessary for comfort.
4. When satised with t and comfort rmly push the pads down onto
the hook disks to ensure complete engagement of the hood and loop
fastener.
Figure 10
➊ ➋
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
!
User Manual 3M
™
Ultra Light Weight Ballistic Bump Helmet N49
12
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 identication 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
User Manual 3M
™
Ultra Light Weight Ballistic Bump Helmet N49
13
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 satised with the positioning, ensure the complete
engagement of the hook and loop fastener by rmly 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 rmly 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
User Manual 3M
™
Ultra Light Weight Ballistic Bump Helmet N49
14
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 o of the accessory rail.
Figure 15Figure 14
➊
➊
You may nd it easier to release the adaptor locking tabs by squeezing
one end rst and then adding the other end, rather than trying to
squeeze both tabs in simultaneously.
Tip
i
User Manual 3M
™
Ultra Light Weight Ballistic Bump Helmet N49
15
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.
User Manual 3M
™
Ultra Light Weight Ballistic Bump Helmet N49
16
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 aect 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 t 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 dierent warranty is specically stated in the applicable product literature or
packaging insert, Ceradyne warrants that each Ceradyne product meets the applicable Ceradyne
product specication 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 sucient 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 Trac 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.
17
User Manual 3M
™
Ultra Light Weight Ballistic Bump Helmet N49
User Manual 3M
™
Ultra Light Weight Ballistic Bump Helmet N49
18
User Manual 3M
™
Ultra Light Weight Ballistic Bump Helmet N49
19
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 company
3M Center 220-9E-02
St. Paul, MN 55144-1000
www.3M.com/Defense
3
User Manual 3M
™
Ultra Light Weight Ballistic Bump Helmet N49
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3M Ultra Light Weight Ballistic Bump Helmet N49 Operating instructions

3M
Brand
3M
Model
Ultra Light Weight Ballistic Bump Helmet N49
Type
Operating instructions
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