OVERVIEW The maxillofacial shield kit (Figure 1) includes a maxillofacial shield (MFS) and attaching hardware designed for installation onto the HGU-84/P helmet. The MFS protects the lower facial area from flying debris. The MFS is designed to match the contour of the visors when either visor is deployed.
INSTALLATION Tools and Materials Required • • Compass or ruler Maxillofacial shield kit • • Scriber Thread-locking adhesive • (Loctite 242) Screwdriver, cross-tip • Drill, electrical, portable • Drill bit, #27 Loctite is a registered trademark of • Drill bit, 1/16 Loctite Corporation.
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4. Set the compass to the value shown below for your helmet size: Medium: 1/4" Large/X-Large: 11/16" X-Large Wide: 1-1/2" 5. Referring to Figure 3, position the point of the compass in bottom dimple on the same side of the helmet, and draw an arc. 6.
Method 2 (Ruler) 1. Remove the visor from the helmet. 2. Depending on helmet size, locate and mark the holes on both sides of the helmet as follows: NOTE: Figures 4, 5, and 6 represent the right side of the helmet as worn. Medium POINT Referring to Figure 4, draw a line...
X-Large Wide: Referring to Figure 4, draw a line between the center of the existing visor snap on the helmet and the rearward end of the chin strap grommet. Measure the following distances: • 1-1/16 inch down the line • 3/4 inch to the right of the line (on the right side of the helmet as worn) •...
Attaching and Adjusting Maxillofacial Shield 1. Reattach the earcups to the pile fasteners inside the helmet. 2. Reattach the visor to the helmet. 3. Referring to Figure 8, attach the maxillofacial shield to the helmet by fastening its snap to the newly installed snap from front to back. Repeat for the other side.
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6. Referring to Figure 9, lower the visor to check the interface between the visors and the maxillofacial shield. If necessary, readjust the visor straps and/or the maxillofacial shield straps. 7. To remove the maxillofacial shield, pull the shield strap away from the helmet.
Wipe the maxillofacial shield with a clean cloth dampened with a mild soap-and-water solution. CONTACT INFORMATION Maxillofacial Shield Kit Part Number 05D12001-2 (Medium/Large) 05D12001-3 (X-Large/X-Large Wide) For more information about the maxillofacial shield kit, contact: Gentex Corporation P.O. Box 315 Carbondale, PA 18407 Phone: (570)282-3550 Fax: (570)282-8555 www.gentexcorp.com.
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