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Gentex SPH-5 Installation Instructions Manual

Maxillofacial shield
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SPH-5 Maxillofacial Shield
(MFS) Assembly
Installation/Operation Instructions
© 2014 Gentex Corporation

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Summary of Contents for Gentex SPH-5

  • Page 1 SPH-5 Maxillofacial Shield (MFS) Assembly Installation/Operation Instructions © 2014 Gentex Corporation...
  • Page 2 When you replace components or install additional components on Gentex products, always use genuine factory-new Gentex parts. This will ensure a correct fit and maintain the safety of the product. Use of non-Gentex parts (salvage, refurbished, etc.) for replacement or additional installation will void any product warranty and may...

  • Page 3: Table Of Contents

    Contents Description Installation Operation Trimming MFS for ANVIS Compatibility Cleaning MFS Replacing Striker Replacing Latch Assembly Replacing End Cap Part 1: Preparing Adhesives Part 2: Removing and Installing End Cap Parts Lists...

  • Page 5: Description

    Description The SPH-5 Maxillofacial Shield (MFS), shown in Figure 1, protects the lower facial area from flying debris. Latches on the right and left sides of the MFS attach it to the helmet-mounted strikers. This booklet includes instructions for installing the strikers on the helmet, attaching the MFS to the strikers, maintaining the MFS, and replacing end caps.

  • Page 6: Installation

    Installation In the procedure below, you will use the mounting jigs with the MFS to locate and mark the hole locations for the attachment of the strikers to the helmet. NOTE: Throughout the procedure, “left side” and “right side” refer to the helmet as worn.
  • Page 7 Each mounting jig has four slots to allow for variations in cross strap attachment on SPH-5 helmets. The upper two slots are marked A; the lower two are marked B. You will attach each jig to the helmet with the lower cross strap attachment hardware (which you removed in Step 1c) via the jig slots at the lower helmet cross strap attachment points.
  • Page 8 3. Attach the mounting jigs to the MFS (Figure 4). Select the correct jig (LEFT or RIGHT) for each side of the MFS (left or right as worn). On one side of the MFS, insert the pin of the latch into the striker feature on the jig and flip the latch closed.
  • Page 9 5. Attach the MFS to the helmet (Figure 6). Do the following: a. Align the MFS within the lower edge of the visor. Ensure that the lower edge of the visor is aligned evenly with the upper raised edge of the MFS. b.
  • Page 10 7. Have the wearer don the helmet (Figure 8). Do the following: a. Grasp the helmet in the earcup area, and carefully flex the helmet just enough to clear the head. Be careful not to move the jigs. b. Place the inside front of the helmet against the forehead, and rotate the helmet downward onto the head.
  • Page 11 For helmet stability, always tighten the nape strap and the chinstrap as snugly as possible when wearing the helmet. Failure to do so may result in injury. 8. Have the wearer tighten the nape strap (Figure 9). Adjust the hook-and- pile closure and tighten the nape strap through the adjustment buckle.
  • Page 12 10. Attach the MFS to the jigs (Figure 10). Attach one side of the MFS to the jig by inserting the MFS latch pin into the striker feature on the jig and flipping the latch to the closed position. Repeat for the other side. Flip latch closed (both sides) Insert latch pin...
  • Page 13 12. Align the upper raised edge of the MFS within the lower edge of the visor lens (Figure 12). Ensure that (1) the wearer’s field of view is not obstructed for the performance of duties and (2) the MFS does not touch the wearer’s nose. 13.
  • Page 14 14. Mark the hole locations (Figure 13). On one side of the helmet, use a well- sharpened pencil to mark the upper and lower holes as shown. Repeat for the other side. Upper hole Lower hole Figure 13. Holes to Mark 15.
  • Page 15 17. Drill the upper holes only (Figure 16). With the jigs removed, use a drill with a 0.185 bit to drill the upper hole only on one side of the helmet. (You will drill through the interior foam.) Repeat for the other side of the helmet. Upper hole Figure 16.
  • Page 16 20. Attach the MFS to the strikers (Figure 19). On one side, insert a latch pin into the striker and flip the latch closed. Repeat for the latch on the other side. Flip latch closed (both sides) Attach (both sides) Figure 19.
  • Page 17 22. Prepare for final drilling. Raise the visor. Remove the MFS. Have the wearer remove the helmet. Remove the strikers from the helmet. NOTE: If you marked a new lower hole in Step 21, drill a new pilot hole with the 0.040 bit before you proceed to Step 23.
  • Page 18 26. Reattach the boom microphone (Figure 24). a. Reinstall the hardware. (Attachment style may vary.) b. Plug the microphone cord into the helmet connector. c. Adjust the microphone boom so that it can be placed behind the MFS. (Loosen the knurled knob on the boom swivel, move the boom forward or back as needed, and tighten the knurled knob.) Plug in Reattach...
  • Page 19 28. Interface the boom microphone with the MFS. Do the following: a. Ensure that: • The microphone is centered behind the MFS. • The microphone is not touching the wearer’s lips. • The microphone is not contacting the inside of the shield. b.

  • Page 20: Operation

    Operation Operation includes opening the MFS on one side when donning or doffing the helmet, and removing the MFS. 1. Open the MFS on one side (Figure 27). a. Flip one latch away from the helmet. b. Swing the MFS open. Flip (one) Open...

  • Page 21: Trimming Mfs For Anvis Compatibility

    Trimming MFS for ANVIS Compatibility 1. Have the wearer don the helmet and attach the MFS. 2. Attach the night vision goggles to the ANVIS mount. 3. Remove the lens caps and lower the night vision goggles. If the goggles clear the MFS and are properly positioned over the eyes, no trimming is needed.

  • Page 22: Cleaning Mfs

    Cleaning MFS Wipe the MFS with a clean cloth dampened with a mild soap-and-water solution. Replacing Striker 1. Referring to Figure 30, remove the screws and posts attaching the striker to the helmet, noting the orientation of the striker. 2. Install the new striker with the screws and posts supplied in the hardware kit, applying a drop of white glue to the ends of each screw.

  • Page 23: Replacing End Cap

    Replacing End Cap This procedure is divided into two parts. Part 1: Preparing Adhesives describes how to mix adhesives in preparation for end cap replacement. Part 2: Removing and Installing End Cap describes how to remove a worn end cap and install a new one using the prepared adhesive. Tools and Materials Needed: •...

  • Page 24: Part 2: Removing And Installing End Cap

    Preparing Adhesives (continued) When pouring and mixing adhesive, wear safety glasses to protect eyes, and wear gloves to protect hands. 2. Pour components in the predetermined amounts into a bucket. 3. Mix components with a mixing stick until well blended. NOTE: The mixed adhesive has (1) an open pot life of one to four hours or (2) a shelf life of eight to twelve hours when properly stored in a sealed container.
  • Page 25 Slide end cap away from shield Part B (install first) Fold back edges of Part B; apply adhesive to inner surface; align holes in back of end cap over raised hardware holes on inner side of shield; install Part B; press glued edges firmly into place.

  • Page 26: Parts Lists

    Parts Lists This section contains parts lists for the SPH-5 MFS. Page 23 includes parts lists for the entire MFS kit, separated by size (Regular and X-Large). Page 24 contains a parts list for the end caps, while Page 25 includes parts lists for the striker hardware kit and the latch hardware kit.
  • Page 27 MFS Kit, SPH-5, Regular (Used on Small and Regular SPH-5 Helmets) Item MFS Kit, Regular, White MFS Kit, Regular, Black MFS Kit, Regular, OD A14069-1A A14069-1B A14069-1C MFS Subassembly MFS Subassembly MFS Subassembly (includes Items 2-6) (includes Items 2-6) (includes Items 2-6)
  • Page 28 Figure 34. End Caps Item End Caps Regular X-Large End Cap, Regular, LH End Cap, X-Large, LH A14011-1 A14011-3 End Cap, Regular, RH End Cap, X-Large, RH A14011-2 A14011-4 Adhesive Primer Adhesive Primer (Solvent, synthetic resin-based) (Solvent, synthetic resin-based) 70048 70048 TACC* Part No.
  • Page 29 Striker hardware kit Latch hardware kit Figure 35. Hardware Kits, Striker and Latch Item Hardware Kits Hardware Kit, Striker Hardware Kit, Latch A14075-1 A14075-2 Striker, MFS (2 per kit) 96B9429 Post (4 per kit) 67B1755 Screw, Pan-Head, 6-32 x 1/4 (4 per kit) Screw, Pan-Head, 6-32 x 1/4 (4 per kit) MS51957-26B MS51957-26B...
  • Page 32 TP0371 JUNE 2014...

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