CARE AND USE INSTRUCTIONS LIGHTWEIGHT IIIA LAW ENFORCEMENT HELMET

CARE AND USE INSTRUCTIONS LIGHTWEIGHT IIIA LAW ENFORCEMENT HELMET 2006 Gentex Corporation

Contents FEATURES................................ 1 COMPONENT DESCRIPTION...................... 2 Helmet Shell............................ 2 Retention Assembly........................ 2 Suspension Systems........................ 2 Adjustable Sizing Pad Suspension System......... 3 Headband and Crown Pad Suspension System....... 3 HELMET PREPARATION........................ 4 Determining Helmet Size...................... 4 For Helmets with Sizing Pad Suspension System...... 4 For Helmets with Headband Suspension Systems..... 6 Checking Helmet Fit: Helmets with Sizing Pads......... 7 Checking Helmet Fit: Helmets with Headband Suspension.. 10 DONNING/DOFFING/OPERATION.................. 12 MAINTENANCE............................ 13 Preventive Maintenance Checks................. 13 Cleaning.............................. 14 Troubleshooting.......................... 14 REMOVAL AND REPLACEMENT OF COMPONENTS........ 15 Chin Strap............................. 15 Leather Headband......................... 16 Headband/Crown Pad Suspension Assembly......... 18 Sizing Pad Suspension Assembly................ 20 Retention Assembly on Helmets with Headband/Crown Pad Suspension...... 21 Retention Assembly on Helmets with Sizing Pad Suspension............ 23 PARTS LISTS.............................. 24

LIGHTWEIGHT IIIA LAW ENFORCEMENT HELMET FEATURES The helmet (Figure 1) weighs less than earlier PASGT helmets. The helmet shell provides ballistic protection for the covered area in accordance with MIL-STD-662, 2150 FPS and NIJ Level IIIA. The helmet provides improved interface with protective goggles and NVG components. A four-point, fully adjustable retention system provides stability and comfort. Two suspension systems are available: one with adjustable sizing pads, the other with a headband and a crown pad. A compatible integrated communication system, an NVG strap assembly, and various helmet covers are available. The helmet is available in sizes small, medium, large, and X-large. HELMET SHELL HELMET WITH SIZING PADS RETENTION SYSTEM HELMET WITH HEADBAND AND CROWN PAD Figure 1. Lightweight IIIA Law Enforcement Helmet 1

COMPONENT DESCRIPTION Helmet Shell HELMET SHELL The ballistic composite helmet shell (Figure 2) incorporates state-of-the-art materials to enhance protection with reduced weight. It is available in four sizes. Retention Assembly The integrated chin/nape retention assembly (Figure 2) provides stability and comfort. It includes a nape pad with adjustable straps and an adjustable chin strap. CHIN STRAP NAPE PAD Figure 2. Helmet Shell and Retention Assembly Suspension Systems Your helmet is equipped with either an adjustable sizing pad suspension system or a headband and crown pad suspension system. These two systems are described on Page 3. WARNING Adjustable sizing pad suspension system: For impact protection, the 1/2" thick foam pad must be kept inside each cloth cover of the adjustable pad suspension system at all times, and the pads must be properly installed inside the helmet. 2

Adjustable Sizing Pad Suspension System The adjustable sizing pad suspension system (Figure 3) consists of a set of eight sizing pads attached with hook and pile to the inside of the helmet shell. Three pads are attached at the front, three at the rear, and two in the crown area. The crown pads can be placed farther apart to accommodate an over-the-head headset. Each sizing pad consists of three impact-absorbing foam filler pads (two ¼ thick and one ½ thick) inside a cover with a hook/pile closure. The ¼ foam pads can be removed or added to allow sizing adjustments for optimum stability and comfort. Headband and Crown Pad Suspension System The headband and crown pad suspension system (Figure 4) has a foam-filled, leather-covered adjustable headband attached with webbing loops to a webbing strap that is secured to the helmet shell. It also has a ventilated mesh crown pad that can be raised or lowered to provide the proper height adjustment. PADS Figure 3. Sizing Pad Suspension System HEADBAND ATTACHMENT COVER CROWN PAD FRONT PADS REAR PADS PAD DETAIL HEIGHT ADJUSTMENT Figure 4. Headband and Crown Pad Suspension System CROWN PADS REAR HEADBAND CLOSURE 3

HELMET PREPARATION Helmet preparation includes determining helmet size, making sure all parts are included, and checking the fit. Determining Helmet Size Helmet sizes are small, medium, large, and X-large. To determine proper helmet size, you must follow the proper procedure for your helmet suspension system. If your helmet has a sizing pad suspension system, follow the procedure that begins below on this page. If your helmet has a headband suspension system, follow the procedure that begins on Page 6. For Helmets with Sizing Pad Suspension System If your helmet has a sizing pad suspension system, you must (1) measure and record the wearer s head length, (2) measure and record the wearer s head breadth, (3) measure and record the wearer s head circumference, and (4) select the helmet size based upon the parameters in Table 1 on Page 5. Tools/Equipment Needed Caliper Ruler Tape measure Measuring Head Length 1. Use a caliper and a ruler as shown in Figure 5 to measure the distance (to the nearest 1/16 inch) from the point between the eyebrows to the back of the head. This is the head length. Ensure that the caliper touches the skin lightly and does not indent the skin. 2. Record the measurement. Measuring Head Breadth 1. Use a caliper and a ruler as shown in Figure 6 to measure the maximum head width (to the nearest 1/16 inch) above the ears. This is the head breadth. Ensure that the caliper touches the skin lightly and does not indent the skin. 2. Record the measurement. Continued on next page POINTS TO MEASURE Measurement point at back of head Caliper Measurement point between eyebrows Figure 5. Measuring Head Length Maximum horizontal width POINTS TO MEASURE Caliper Ruler Ruler Figure 6. Measuring Head Breadth 4

Measuring Head Circumference 1. Use a tape measure as shown in Figure 7 to measure the maximum head circumference (to the nearest 1/16 inch) above the ears. 2. Record the measurement. Selecting Helmet Size Referring to Table 1, select the helmet size based on head length, head breadth, and head circumference. TAPE MEASURE Figure 7. Measuring Head Circumference Table 1. Sizing Parameters for Helmets with Sizing Pads HELMET SIZE HEAD LENGTH (Inches) HEAD BREADTH (Inches) HEAD CIRCUMFERENCE (Inches) Small <7-1/2 <5-7/8 <21-7/8 Medium 7-1/2 to 7-13/16 5-7/8 to 6-1/8 21-7/8 to 22-5/8 Large 7-13/16 to 8-1/8 6-1/8 to 6-5/16 22-5/8 to 23-3/8 X-Large >8-1/8 >6-5/16 >23-3/8 NOTES The sizing parameters for the helmets with fitting pads are based on a fitting pad compression of approximately 30 percent. This is the recommended compression for optimum helmet stability. The sizing parameters for the helmets are approximate. Depending upon the wearer s individual head shape, the next larger or smaller size may be needed. If the helmet will be worn with an M-40 respirator, or a GenCom III or Peltor headset, and a head measurement is near the maximum parameter for a given size (as specified in Table 1), a larger size may be needed. Peltor is a trademark of Aearo Company. 5

For Helmets with Headband Suspension Systems If your helmet has a headband suspension system, you must (1) measure and record the wearer s head circumference, and (2) select the helmet size based upon the parameters in Table 2 on this page. Tools/Equipment Needed Tape measure Measuring Head Circumference 1. Use a tape measure as shown in Figure 8 to measure the maximum head circumference (to the nearest 1/16 inch) above the ears. 2. Record the measurement. TAPE MEASURE Figure 8. Measuring Head Circumference Selecting Helmet Size Referring to Table 2, select the helmet size based upon head circumference. Table 2. Sizing Parameters for Helmets with Headbands HELMET SIZE HEAD CIRCUMFERENCE (Inches) Small <21-7/8 Medium 21-7/8 to 22-1/16 Large 22-1/16 to 24 X-Large >24 NOTES The sizing parameters for the helmets are approximate. Depending upon the wearer s individual head shape, the next larger or smaller size may be needed. If the helmet will be worn with an M-40 respirator, or a GenCom III or Peltor headset, and a head measurement is near the maximum parameter for a given size (as specified in Table 2), a larger size may be needed. Peltor is a trademark of Aearo Company. 6

Checking Helmet Fit: Helmets with Sizing Pads (See Page 10 for Helmets with Headband Suspension) WARNING Ensure that all helmet adjustment mechanisms are properly adjusted for a snug, secure fit at all times when the helmet is worn. Failure to do so can result in an unstable helmet that will not protect the wearer. Each sizing pad contains one ½-inch-thick foam pad and two ¼-inch-thick foam pads inside the cover. For impact protection and helmet stability, you must keep all ½-inch-thick foam pads inside the sizing pads and all sizing pads properly installed in the helmet when the helmet is worn. Remove the ¼-inch-thick pads only where necessary to adjust the fit. 1. Have the wearer don the helmet. Allow the helmet to settle on the head for a few minutes before checking the fit. 2. Ensure that the front sizing pads are just above the brow ridge. If the helmet is too high, have the wearer remove the helmet. Referring to Figure 9, adjust the height as follows: a. Remove the two crown pads, noting their position inside the helmet. b. Remove one or both ¼-inch-thick foam pads from each crown pad cover. c. Reinstall both crown pads (with the ½-inch-thick foam pad inside each one) in the helmet in the same positions from which they were removed. Ensure that the opening in each crown pad cover faces the top of the helmet. d. Have the wearer don the helmet. Recheck the helmet height. PAD DETAIL OPENING IN CLOTH COVER NOTE: The crown pads can be placed farther apart to accommodate an over-the-head headset. ¼-INCH- THICK FOAM PADS CROWN PADS ½-INCH- THICK FOAM PAD (Continued on next page) Figure 9. Crown Pads 7

3. Ensure that the helmet fit is snug and secure, yet comfortable. As needed, have the wearer remove the helmet, refer to Figure 10, and adjust the front and rear pads as follows: a. Remove the front or rear pads from the helmet as needed, noting their position inside the helmet. b. Remove one or both ¼-inch-thick foam pads from front or rear pad cover. c. Reinstall both rear pads (with the ½-inch-thick foam pad inside each one) in the helmet in the same positions from which they were removed. Ensure that the opening in each crown pad cover faces the rear of the helmet. d. Have the wearer don the helmet again. Recheck the fit. (Continued on next page) FRONT PADS PAD DETAIL TWO ¼-INCH- THICK FOAM PADS REAR PADS ONE ½-INCH-THICK FOAM PAD OPENING IN CLOTH COVER Figure 10. Adjusting Rear and Front Pads 8

4.Referring to Figure 11, do the following: a. Buckle the chinstrap. b. Adjust the nape strap for a snug, secure, comfortable fit at the nape. c. Tighten the chin strap by pulling on the ends until the fit is snug, secure, and comfortable. Reattach the ends to the pile fastener when the desired fit is attained. d. The front and rear retention straps have upper and lower grommets. If necessary, remove the retention hardware, adjust the grommets upward or downward, and reinstall the hardware. e. Check the helmet stability by attempting to rock the helmet back and forth on the head. If the helmet rocks back and forth, it is not stable. Adjust the nape strap further until the helmet is stable. f. Repeat Steps 4b through 4e as necessary. Recheck helmet stability; no straps should be loose. GROMMET ADJUSTMENT (THREE FRONT, TWO REAR) PILE FASTENER END OF CHIN STRAP (ONE ON EACH SIDE) NAPE STRAP ADJUSTMENT (ONE ON EACH SIDE) BUCKLE Figure 11. Nape Strap and Chin Strap Adjustment 9

Checking Helmet Fit: Helmets with Headband Suspension (See Page 7 for Helmets with Sizing Pads) WARNING Ensure that all helmet adjustment mechanisms are properly adjusted for a snug, secure fit at all times when the helmet is worn. Failure to do so can result in an unstable helmet that will not protect the wearer. 1. Have the wearer don the helmet. Ensure that the headband is positioned just above the brow ridge. 2. As needed, refer to Figure 12 and adjust the headband circumference as follows: a. Have the wearer remove the helmet. b. Unfasten the hook/pile tabs at the rear of the headband, and re-fasten them to tighten or loosen the headband. c. Have the wearer don the helmet again and evaluate the fit. Repeat the procedure until the headband fit is snug and secure, yet comfortable. WEBBING LOOP PILE FASTENER 3. As needed, refer to Figure 13 and adjust the helmet height as follows: a. Have the wearer remove the helmet. b. Lift the rear of the crown pad, and unfasten the hook tab. c. Reposition the hook tab on the pile fastener to raise or lower the mesh crown pad. d. Have the wearer don the helmet again and evaluate the helmet height. Repeat the procedure until the proper helmet height (a helmet standoff of ½ to 1 inch from the head in all directions) is attained. (Continued on next page) HOOK/PILE FASTENER ON REAR OF HEADBAND Figure 12. Headband Adjustment PILE FASTENER HOOK TAB Figure 13. Crown Pad Adjustment 10

4. Referring to Figure 14, do the following: a. Buckle the chinstrap. b. Adjust the nape strap for a snug, secure, comfortable fit at the nape. c. Tighten the chin strap by pulling on the ends until the fit is snug, secure, and comfortable. Reattach the ends to the pile fastener when the desired fit is attained. d. The front and rear retention straps have upper and lower grommets. If necessary, remove the retention hardware, adjust the grommets upward or downward, and reinstall the hardware. e. Check the helmet stability by attempting to rock the helmet back and forth on the head. If the helmet rocks back and forth, it is not stable. Adjust the nape strap further until the helmet is stable. f. Repeat Steps 4b through 4e as necessary. Recheck helmet stability; no straps should be loose. GROMMET ADJUSTMENT (THREE FRONT, TWO REAR) PILE FASTENER END OF CHIN STRAP (ONE ON EACH SIDE) BUCKLE Figure 14. Nape Strap and Chin Strap Adjustment NAPE STRAP ADJUSTMENT (ONE ON EACH SIDE) 11

DONNING/DOFFING/OPERATION WARNING Ensure that all helmet adjustment mechanisms are properly adjusted for a snug, secure fit at all times when the helmet is worn. Failure to do so can result in an unstable helmet that will reduce protection to the wearer. 1. Don the helmet, ensuring that the headband rests just above the brow ridge. 2. Buckle the chinstrap. 3. Refer to Figure 15. As needed, adjust the chin strap as follows: a. Detach the ends of the chin strap from the pile fastener. b. Pull on the ends until the chinstrap fits snugly, securely, and comfortably. c. Reattach the ends of the chinstrap securely to the pile fastener. PILE FASTENER END OF CHIN STRAP (ONE ON EACH SIDE) BUCKLE 4. To doff the helmet, unbuckle the chinstrap and remove the helmet from the head. Figure 15. Chin Strap 12

MAINTENANCE Preventive Maintenance Checks Table 3 lists the preventive maintenance tasks for each component and refers you to the appropriate procedure. Table 3. Preventive Maintenance Checks COMPONENT EXAMINE FOR: HELMET IS NOT READY IF: Chin strap Bro ken buck les; torn or frayed web bing, worn hook/pile fasteners Buckles are bro ken; web bing is torn or frayed; hook/pile fas ten ers do not secure Fitting Pads Worn hook/pile fasteners or foam; torn fabric or seams Hook/pile fasteners or foam are worn, fabric or seams are torn Head band Pad and Headband Worn hook/pile fas ten ers; holes or cracks in leather; headband missing from helmet Hook/pile fas ten ers do not secure; leather has holes or cracks; head band is miss ing from hel met Mesh Crown Pad and Suspension Torn/frayed web bing or cord; worn hook/pile fasteners Webbing or cord is torn or frayed; hook/pile fas ten ers do not secure Retention Assembly Torn/frayed webbing; broken nape strap buckles; worn nape pad; worn buckle pad Webbing is torn or frayed; nape strap buckles are broken; nape pad is worn; buckle pad is worn Helmet Shell Holes, cracks, or delaminations greater than 2 inches Helmet shell has holes, cracks, or delaminations greater than 2 inches 13

Cleaning Table 4 lists the cleaning procedure for each of the helmet components. Table 4. Cleaning COMPONENT Helmet Shell Headband and Crown Pad Leather Components Retention Assembly Sizing Pads PROCEDURE Wipe clean with damp cloth. Wipe clean with damp cloth. Clean with soap, rinse thoroughly, wipe dry with clean cloth. Wipe clean with damp cloth. Machine wash with mild detergent in cold water Troubleshooting Listed below are the troubleshooting tasks for each component, along with the appropriate repair procedure. 1. Malfunction: Unable to fasten or adjust chin strap Test/Inspection: Inspect chin strap for defective webbing, buckles, or hook/pile fasteners. Corrective Action: Replace chin strap as on Page 15. 2. Malfunction: Unable to adjust headband Test/Inspection: Inspect hook/pile fasteners for wear. Corrective Action: Replace headband as on Page 16. 3. Malfunction: Discomfort caused by worn headband Test/Inspection: Inspect leather headband for cracks or hardness. Corrective Action: Replace headband as on Page 16. 4. Malfunction: (Headbad/crown pad suspension only:) Unable to adjust/maintain helmet height or alignment of night vision devices Test/Inspection: a. Inspect hook/pile fasteners on mesh crown pad/ suspension for wear. b. Inspect mesh crown pad/suspension for tears/fraying. Corrective Action: Replace suspension assembly as on Page 18. 14

5. Malfunction: Unable to attain/maintain helmet stability Test/Inspection: Inspect retention assembly for defective buckles, worn buckle pads, torn/frayed webbing, or worn nape pad. Corrective Action: Replace retention as on Page 21 (for headband/crown pad suspension) or Page 23 (for sizing pad suspension) 6. Malfunction: Helmet shell unable to provide adequate protection. Test/Inspection: Inspect helmet shell for holes or cracks. Corrective Action: a. Remove all internal components from helmet shell as on Pages 18, 20, 21, or 23 as applicable. b. Turn helmet shell in for replacement. c. Install internal components into replacement helmet shell on Pages 19, 20, 22, or 23 as applicable. Install the retention assembly first, followed by the suspension assembly. REMOVAL AND REPLACEMENT OF COMPONENTS Chin Strap Removal 1. Refer to Figure 16. Unfasten the chin strap buckle on the left side (as worn) of the retention assembly. 2. Unlace the chin strap from the right side (as worn) of the retention assembly. Installation 1. Lace the chin strap through the buckle on the right side (as worn) of the retention assembly. LACE/ UNLACE RIGHT SIDE (AS WORN) 2. Don the helmet. Fasten the chin strap to the buckle on the left side (as worn) of the retention assembly. 3. Check the fit in accordance with Pages 7-9 (for helmets with sizing pad suspension) or Pages 10-11 (for helmets with headband suspension). Make any necessary adjustments. Figure 16. Chin Strap FASTEN/ UNFASTEN 15

Leather Headband Removal 1. At the rear of the helmet, unfasten the headband hook/pile closure. (See Figure 17.) 2. Working toward the front of the helmet, refer to Figure 18 and unfasten each of the six webbing loops attaching the headband to the suspension band by separating the hook and pile. NOTE When unfastening the two front webbing loops, also detach the hook fasteners on the headband from the pile fastener on the suspension band. 3. Remove the headband from the helmet. REAR HOOK/PILE CLOSURE Figure 17. Headband Hook/Pile Fasteners FRONT WEBBING LOOP SUSPENSION BAND FRONT SUSPENSION BAND WITH PILE FASTENER SUSPENSION BAND WEBBING LOOP WEBBING LOOP Figure 18. Headband Webbing Loops 16

Installation 1. Referring to Figure 19, attach the hook fasteners on the front of the replacement headband to the pile fasteners at the inside front of the suspension assembly (where the old headband was removed. 2. Working toward the rear of the helmet, wrap each of the six webbing loops on the headband around the suspension assembly. Fasten the loops by firmly attaching the hook fasteners to the pile fasteners. 3. Referring to Figure 20, fasten the headband hook/pile fasteners at the rear of the helmet. FRONT WEBBING LOOP SUSPENSION BAND WEBBING LOOP FRONT SUSPENSION BAND WITH PILE FASTENER SUSPENSION BAND WEBBING LOOP Figure 19. Headband Webbing Loops 4. Don the helmet, check the fit in accordance with Pages 10-11. Make any necessary adjustments. REAR HOOK/PILE CLOSURE Figure 20. Headband Hook/Pile Fasteners 17

Headband/Crown Pad Suspension Assembly Removal 1. Remove the headband assembly in accordance with Page 16, Removal. A-NUT NOTE The four screws and A-nuts at the sides of the helmet also hold the retention assembly in place as shown in Figure 21. As you remove the suspension assembly, you may wish to reinstall these four screws and A-nuts to hold the retention assembly in place. Note which holes in the retention assembly were used. 2. Remove the screws and A-nuts attaching the suspension assembly to the helmet shell, noting the order and position of components. 3. Remove the suspension assembly from the helmet. SCREWS SUSPENSION ASSEMBLY RETENTION ASSEMBLY SCREW Figure 21. Hardware Locations 18

Installation NOTE When reinstalling the hardware, ensure that the screws are placed in the correct locations. There are two 7/16 screws; one is installed in the center front of the helmet and the other in the center rear to hold the headband suspension in place. The four ½ screws are installed in the remaining side locations to hold both the headband suspension and the retention assembly in place. 1. Place the suspension assembly in the helmet, ensuring that the sewn ends of the suspension band are at the rear and that the webbing X on the mesh crown pad faces the inside top of the helmet shell. 2. At the rear of the suspension band, insert the A-nut through the holes in the band with the narrow end of the A-nut pointing toward the top of the helmet. Insert the A-nut through the inside center rear hole of the helmet shell. On the outside of the helmet, install the screw into the A-nut, but do not tighten it. 3. Refer to Figure 22. Reinstall (but do not tighten) each of remaining screws and A-nuts through the suspension band holes (and, where applicable, through the holes in the retention assembly). 4. Tighten all screws. 5. Reinstall the headband in accordance with Page 17, Installation. 6. Don the helmet, check the fit in accordance with Pages 10-11. Make any necessary adjustments. A-NUT Figure 22. Suspension Band SUSPENSION ASSEMBLY RETENTION ASSEMBLY SCREW 19

Sizing Pad Suspension Assembly Removal 1. Refer to Figure 23. Remove the sizing pads from the helmet, noting their position and orientation in the helmet. 2. Look inside each of the removed pad covers, noting whether both the 1/2-inch-thick and 1/4-inch-thick foam pads are installed inside the cover, or only the 1/2-inch-thick pad. Installation WARNING Each fitting pad contains one ½-inch-thick foam pad and one 1/4-inch-thick foam pad inside the cover. For impact protection and helmet stability, you must keep all ½-inch-thick foam pads inside the fitting pads and all fitting pads properly installed in the helmet when the helmet is worn. Remove the 1/4-inch-thick pads only where necessary to adjust the fit. 1. Obtain the replacement pads. If only the 1/2-inch-thick foam pads were used in the previous pads, remove one or two 1/4-inch-thick foam pads from the replacement pads in the same manner. Otherwise, leave the two 1/4-inch-thick pads inside. 2. Install the replacement pads in the helmet in the same manner in which the previous pads were installed. FRONT PADS COVER REAR PADS CROWN PADS 3. Don the helmet, and check the fit in accordance with Pages 7-9. Make any necessary adjustments. PADS PAD DETAIL Figure 23. Sizing Pad Suspension Assembly 20

Retention Assembly on Helmets with Headband/Crown Pad Suspension Removal 1. On one side of the helmet, unfasten the headband webbing loops as necessary to provide access to the retention assembly attachment points. SCREWS 2. On the same side, remove the screws (Figure 24) and A-nuts (Figure 25) attaching the retention assembly to the helmet shell, noting the order and position of components. 3. Repeat Steps 1 and 2 on the other side of the helmet. Figure 24. Hardware Locations 21

Installation 1. Position the retention assembly in the helmet, ensuring that the nape pad is in the rear. 2. Refer to Figure 25. On one side of the helmet, position the rear attachment point of the retention assembly between the suspension band and the helmet shell. Install an A-nut through the holes in the suspension band, retention assembly, and helmet shell, ensuring that the narrow end of the A-nut points toward the top of the helmet. On the outside of the helmet, install and tighten a screw into the A-nut. Repeat this step for the front retention attachment point on the same side. 3. On the same side of the helmet, fasten the webbing loops. A-NUT 4. Repeat Steps 2 and 3 on the other side of the helmet. 5. Don the helmet, check the fit in accordance with Pages 10-11, and make any necessary adjustments. SUSPENSION ASSEMBLY RETENTION ASSEMBLY SCREW Figure 25. Suspension Band 22

Retention Assembly on Helmets with Sizing Pad Suspension Removal 1. Referring to Figure 26, remove the front and rear sizing pads as necessary to reach the retention assembly attaching hardware on the inside of the helmet, noting the position of the pads. 2. Referring to Figure 27, remove the four screws and A-nuts attaching the retention assembly to the helmet. FRONT PAD REAR PAD Figure 26. Sizing Pads to Be Removed RETENTION STRAP A-NUT FRONT PAD REAR PAD Installation 1. Install the replacement retention assembly with the screws and A-nuts. 2. Reinstall the sizing pads in the positions from which they were removed. SCREW SCREWS 3. Don the helmet, check the fit in accordance with Pages 7-9, and make any necessary adjustments. Figure 27. Retention Assembly Hardware 23

PARTS LISTS On the next several pages are parts lists for the Lightweight IIIA Law Enforcement helmet. Each parts list is accompanied by an illustration on the facing page. The parts are shown as follows: Helmet with adjustable pad suspension (Pages 24 and 25) Helmet with headband/crown pad suspension (Pages 26 and 27) Helmet with adjustable pad suspension and headband/crown pad suspension (Pages 28 and 29) SIZING PADS HELMET SHELL RETENTION ASSEMBLY A-NUT SCREW Figure 28. Lightweight IIIA Law Enforcement Helmet Assembly with Adjustable Pad Suspension 24

Lightweight IIIA Law Enforcement Helmet, Adjustable Pad Suspension, Small, 04C11875-1* Helmet Shell, Small 03C11810-1 Helmet Pad Kit, Small/Medium 00B11094-1 1 ea Retention Small/Medium 04D11842-1 Screw, Truss Head, 8-32 x ½ 80A5049-1 4 ea. A-nut 80A5050 4 ea. Instruction Booklet TP0261 HELMET WITH ADJUSTABLE PAD SUSPENSION Lightweight IIIA Law Enforcement Helmet, Adjustable Pad Suspension, Medium, 04C11875-2* Helmet Shell, Medium 03C11810-3 Helmet Pad Kit, Small/Medium 00B11094-1 Retention Small/Medium 04D11842-1 Screw, Truss Head, 8-32 x ½ 80A5049-1 4 ea. A-nut 80A5050 4 ea. Instruction Booklet TP0261 Lightweight IIIA Law Enforcement Helmet, Adjustable Pad Suspension, Large, 04C11875-3* Helmet Shell, Large 03C11810-5 Helmet Pad Kit, Large/X-Large 00B11094-2 Retention Large 04D11842-2 Screw, Truss Head, 8-32 x ½ 80A5049-1 4 ea. A-nut 80A5050 4 ea. Instruction Booklet TP0261 Lightweight IIIA Law Enforcement Helmet, Adjustable Pad Suspension, X-Large, 04C11875-4* Helmet Shell, X-Large 03C11810-7 Helmet Pad Kit, Large/X-Large 00B11094-2 Retention X-Large 04D11842-3 Screw, Truss Head, 8-32 x ½ 80A5049-1 4 ea. A-nut 80A5050 4 ea. Instruction Booklet TP0261 * Each helmet part number has a suffix (A, B, C, D, E, or F) added as follows: Small 04C11875-1 A (Black) Medium 04C11875-2 A (Black) 04C11875-1 B (Green) 04C11875-2 B (Green) 04C11875-1 C (Olive Drab) 04C11875-2 C (Olive Drab) 04C11875-1 D (CHP Blue) 04C11875-2 D (CHP Blue) 04C11875-1 E (UN Blue) 04C11875-2 E (UN Blue) 04C11875-1 F (Desert Tan) 04C11875-2 F (Desert Tan) Large 04C11875-3 A (Black) X-Large 04C11875-4 A (Black) 04C11875-3 B (Green) 04C11875-4 B (Green) 04C11875-3 C (Olive Drab) 04C11875-4 C (Olive Drab) 04C11875-3 D (CHP Blue) 04C11875-4 D (CHP Blue) 04C11875-3 E (UN Blue) 04C11875-4 E (UN Blue) 04C11875-3 F (Desert Tan) 04C11875-4 F (Desert Tan) 25

SUSPENSION ASSEMBLY HELMET SHELL HEADBAND RETENTION ASSEMBLY A-NUT SCREW Figure 29. Lightweight IIIA Law Enforcement Helmet Assembly with Headband/Crown Pad Suspension 26

Lightweight IIIA Law Enforcement Helmet, Headband Suspension, Small, 04C11875-5* Helmet Shell, Small 02D11651-1 Suspension Small 00D11007-1 Headband, Small 00D11013-1 Retention Small/Medium 04D11842-1 Screw, Truss Head, 8-32 x ½ 80A5049-1 6 ea. A-nut 80A5050 6 ea. Instruction Booklet TP0261 HELMET WITH HEADBAND/CROWN PAD SUSPENSION Lightweight IIIA Law Enforcement Helmet, Headband Suspension, Medium, 04C11875-6* Helmet Shell, Medium 02D11533-1 Suspension Medium 00D11007-2 Headband, Medium 00D11013-2 Retention Small/Medium 04D11842-1 Screw, Truss Head, 8-32 x ½ 80A5049-1 6 ea. A-nut 80A5050 6 ea. Instruction Booklet TP0261 Lightweight IIIA Law Enforcement Helmet, Headband Suspension, Large, 04C11875-7* Helmet Shell, Large 02D11617-1 Suspension Large 00D11007-3 Headband, Large 00D11013-3 Retention Large 04D11842-2 Screw, Truss Head, 8-32 x ½ 80A5049-1 6 ea. A-nut 80A5050 6 ea. Instruction Booklet TP0261 Lightweight IIIA Law Enforcement Helmet, Headband Suspension, X-Large, 04C11875-8* Helmet Shell, X-Large 02D11675-1 Suspension X-Large 00D11007-4 Headband, X-Large 00D11013-4 Retention X-Large 04D11842-3 Screw, Truss Head, 8-32 x ½ 80A5049-1 6 ea. A-nut 80A5050 6 ea. Instruction Booklet TP0261 * Each helmet part number has a suffix (A, B, C, D, E, or F) added as follows: Small 04C11875-5 A (Black) Medium 04C11875-6 A (Black) 04C11875-5 B (Green) 04C11875-6 B (Green) 04C11875-5 C (Olive Drab) 04C11875-6 C (Olive Drab) 04C11875-5 D (CHP Blue) 04C11875-6 D (CHP Blue) 04C11875-5 E (UN Blue) 04C11875-6 E (UN Blue) 04C11875-5 F (Desert Tan) 04C11875-6 F (Desert Tan) Large 04C11875-7 A (Black) X-Large 04C11875-8 A (Black) 04C11875-7 B (Green) 04C11875-8 B (Green) 04C11875-7 C (Olive Drab) 04C11875-8 C (Olive Drab) 04C11875-7 D (CHP Blue) 04C11875-8 D (CHP Blue) 04C11875-7 E (UN Blue) 04C11875-8 E (UN Blue) 04C11875-7 F (Desert Tan) 04C11875-8 F (Desert Tan) 27

SIZING PADS HELMET SHELL RETENTION ASSEMBLY SUSPENSION ASSEMBLY HEADBAND A-NUT SCREW 28 Figure 30. Lightweight IIIA Law Enforcement Helmet Assembly with Adjustable Pad Suspension and Headband/Crown Pad Suspension

Lightweight IIIA Law Enforcement Helmet, Adjustable Pad Suspension and Headband Suspension, Small, 04C11875-9* Helmet Shell, Small 02D11651-1 Helmet Pad Kit, Small/Medium 00B11094-1 Suspension Small 00D11007-1 Headband, Small 00D11013-1 Retention Small/Medium 04D11842-1 Screw, Truss Head, 8-32 x ½ 80A5049-1 6 ea. A-nut 80A5050 6 ea. Instruction Booklet TP0261 HELMET WITH ADJUSTABLE PAD SUSPENSION AND HEADBAND/CROWN PAD SUSPENSION Lightweight IIIA Law Enforcement Helmet, Adjustable Pad Suspension and Headband Suspension, Medium, 04C11875-10* Helmet Shell, Medium 02D11533-1 Helmet Pad Kit, Small/Medium 00B11094-1 Suspension Medium 00D11007-2 Headband, Medium 00D11013-2 Retention Small/Medium 04D11842-1 Screw, Truss Head, 8-32 x ½ 80A5049-1 6 ea. A-nut 80A5050 6 ea. Instruction Booklet TP0261 Lightweight IIIA Law Enforcement Helmet, Adjustable Pad Suspension and Headband Suspension, Large, 04C11875-11* Helmet Shell, Large 02D11617-1 Helmet Pad Kit, Large/X-Large 00B11094-2 Suspension Large 00D11007-3 Headband, Large 00D11013-3 Retention Large 04D11842-2 Screw, Truss Head, 8-32 x ½ 80A5049-1 6 ea. A-nut 80A5050 6 ea. Instruction Booklet TP0261 Lightweight IIIA Law Enforcement Helmet, Adjustable Pad Suspension and Headband Suspension, X-Large, 04C11875-12* Helmet Shell, X-Large 02D11675-1 Helmet Pad Kit, Large/X-Large 00B11094-2 Suspension X-Large 00D11007-4 Headband, X-Large 00D11013-4 Retention X-Large 04D11842-3 Screw, Truss Head, 8-32 x ½ 80A5049-1 6 ea. A-nut 80A5050 6 ea. Instruction Booklet TP0261 * Each helmet part number has a suffix (A, B, C, D, E, or F) added as follows: Small 04C11875-9 A (Black) Medium 04C11875-10 A (Black) 04C11875-9 B (Green) 04C11875-10 B (Green) 04C11875-9 C (Olive Drab) 04C11875-10 C (Olive Drab) 04C11875-9 D (CHP Blue) 04C11875-10 D (CHP Blue) 04C11875-9 E (UN Blue) 04C11875-10 E (UN Blue) 04C11875-9 F (Desert Tan) 04C11875-10 F (Desert Tan) Large 04C11875-11 A (Black) X-Large 04C11875-12 A (Black) 04C11875-11 B (Green) 04C11875-12 B (Green) 04C11875-11 C (Olive Drab) 04C11875-12 C (Olive Drab) 04C11875-11 D (CHP Blue) 04C11875-12 D (CHP Blue) 04C11875-11 E (UN Blue) 04C11875-12 E (UN Blue) 04C11875-11 F (Desert Tan) 04C11875-12 F (Desert Tan) 29

OPTIONS The following options are available for use with the Lightweight IIIA Law Enforcement Helmet. Contact Gentex Corporation for more information. Night vision goggle strap Various helmet covers, including woodland camouflage, desert camouflage, and white Various headsets, including an GDH headset for maximum situational awareness and a modified GenCOM III headset for high-noise environments 30

NOTES

TP0261 REV. 1 MARCH 2006