(pm halo) helmet assembly - Gentex Corporation

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Periodic InspectionOperating personnel shall be responsible for ensuring that their helmets havebeen inspected, cleaned and repaired as required by qualified equipmenttechnicians within the last 30 days prior to each flight. Helmets that are notmanaged as integrated systems in conjunction with the oxygen mask may beinspected at a 90-day inspection interval. Inspections shall be annotated on asuitable inspection record, and suitable pressure sensitive-tape attached to thehelmet or mask assembly, and/or as described by service directives.NOTE: As a result of this inspection, any component found to be defectivewill be repaired/replaced as necessary. Report any deficiencies to themaintenance technician.SERVICE OPTION: Helmets (with the oxygen mask) used very infrequentlyand carried on board the aircraft for emergency use, require inspection not toexceed 90 days. Services will determine what constitutes infrequently used(this should be specified service directives).1. Visually the inspect helmet shell for cleanliness, warping, holes, cracks andscratches.2. Inspect the leather edgeroll for holes, cuts, torn seams or detached areas.3. Inspect the bump stops for damaged and detached areas.4. Inspect the suspension system (fitting pads, XLINER, or TPL) as follows:a. Note how the suspension system is installed in the helmet; then removethe suspension system from the helmet.b. Examine the hook fasteners on the energy-absorbing liner, ensuring thatthe fasteners are securely adhered.c. Examine the energy-absorbing liner for damaged areas such as gouges,depressions, or evidence of erosion due to attack by solvents. Replacethe liner if there is reasonable assumption that head protection will becompromised due to the extent of liner damage.d. Examine the suspension system.Fitting pads: Examine for loosening of cemented parts (leather lining,pile backing, pile fasteners); torn fabric or seams; excessive soil.XLINER: Examine for torn fabric, separated seams, and excessive soil.Also, ensure that the XLINER is the correct size for the helmet.TPL (optional item): Inspect the cover for cleanliness and security ofattachment to the layers.(Continued on next page)22
5. Inspect the communications components as follows:a. Inspect the ear cushions for secure attachment to earcups, cleanliness,cuts, tears or evidence of compression set and hardening.b. Inspect earcups or leather earpads for breakage or other damage thatcould impair safety or sound attenuation.c. Inspect cords for breaks or frayed areas.d. Plug the microphone cable and plug assembly into the MQ-1/MQ-1A orDMH-1 tester and assure that the microphone and earphones areworking properly. Speak into the microphone. The microphone andearphones are operating properly when the voice is transmitted from themicrophone through the amplifier and heard in the headset.6. Inspect the visors and goggles as follows:NOTE: Visors and goggles are not required for altitude chamber studenttraining use.a. Inspect the straps to ensure that the nylon webbing and cotton elasticare not frayed or torn and that snap fasteners or hook/pile fasteners areall in good working condition.b. Visually inspect the visor snap fasteners for proper clinching of thefastener components.• The roll barrels in each snap socket and stud must be rolled over allaround. They should have a symmetrical, donut-shaped appearance.Any fastener on which the barrel material is not completely rolledover the edge of the stud or socket must be discarded.• Any roll with more than three splits that extend over the top of thebarrel and are readily detectable by visual observation shall beregarded as defective.c. Inspect the rubber edge beading at the top the visor lens for unbondedsections, cuts, tears, or holes.d. Inspect visor/goggle lens for cracks, scratches, dust particles andsmears. If visors are scratched, replace as necessary. Minor scratchesnot interfering with critical vision area are permissible.7. Inspect the nape strap and the chin strap for cleanliness and to ensure thatthe fabric and stitching are not frayed or torn; the buckles on the chin strapand the nape strap are not corroded, bent, or broken; the retainer screws inthe chin strap and the nape strap are securely attached and are notcorroded; and the washers are properly positioned.(Continued on next page)23
Page 1: Operation InstructionsPARAMASTERHIG
Page 4 and 5: SAFETY NOTICEWARNINGProper fitting,
Page 6 and 7: Basic HelmetAll basic helmets (Figu
Page 8 and 9: Optional ComponentsThe following op
Page 10 and 11: • Snap-on visors(Figure 9). Snap-
Page 12 and 13: 2. Adjust the nape strap (Figure 13
Page 14 and 15: Attaching Step-in Visor1. Don the h
Page 16 and 17: Operating Communications SystemDepe
Page 18 and 19: Using 9" Mask Microphone Cable with
Page 20 and 21: Using 32" Mask Microphone Cable and
Page 22 and 23: Using Ear-To-Ear CableYou can use t
Page 24 and 25: 3. To use the ear-to-ear cablewith
Page 28 and 29: 8. Inspect the bayonet receivers as
Page 30 and 31: PARTS LISTSFollowing are the parts
Page 32 and 33: Optional ComponentsMicrophones (Fig
Page 34 and 35: Snap-on Visors(Figure 44)• MBU-12
Page 36 and 37: Single Radio Adapters (Figure 48)fo
Page 38 and 39: Specialty Adapters (Figure 51)05B12
Page 40: TP0257 REV. 4 FEBRUARY 2012

(pm halo) helmet assembly - Gentex Corporation

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