Presentation on theme: "MAINTAIN YOUR M-40 SERIES PROTECTIVE MASK WITH HOOD"— Presentation transcript:
1 MAINTAIN YOUR M-40 SERIES PROTECTIVE MASK WITH HOOD TASK # Skill Level 1REFERENCESRequiredTMTMSTP 21-1-SMCTTMTM
2 MAINTAIN YOUR M-40 SERIES PROTECTIVE MASK WITH HOOD TASKMAINTAIN YOUR M-40 SERIES PROTECTIVE MASK WITH HOOD
3 CONDITIONSYou are assigned the M40-series protective mask (with authorized accessories and components). The mask needs to be cleaned. You have a container of warm, soapy water; a container of clear water; clean rags; denatured alcohol; a small cleaning brush and optical lens cleaning compound (NSN ).
4 STANDARDSIdentify and correct all operator-level deficiencies or shortcomings.2. Clean the mask, removing all dirt and conditioning the mask3. Report deficiencies not corrected to your supervisor.
5 CHECK THE MASK1. Check the carrier to ensure all issued items are present2. Check the filter canister for:a. Cracks, dents, or holes especially around the seamsb. Clogged air intakec. Damaged threads on the canisterb. Loose absorbent particles by shaking the canister3. Check the eye lenses, the eye-rings, and the outsertsa. Remove the outserts from the facepiecec. Check the eye lenses for cracks, chips, or discoloration that affect your visionb. Check the eye-rings for distortion or corrosion
6 CHECK THE MASK (cont…)d. Check the rubber rings for tears, looseness, brittle spots or cracked rimse. Check both sets of outsert lenses for cracks, chips, or discoloration that affect your vision4. Check the facepiecea. Check the inside surfaces of the facepiece for dirt, mud, and greasy or oily substancesb. Check for holes, tears and splitsc. Check the edges for soft or sticky spotsd. Check all facepiece housing to be sure the silicone rubber is not pulling away, especially around the eye lenses
7 Note: Remove the hood to allow inspection CHECK THE MASK (cont…)5. Check the hooda. Examine the hood for cuts, holes, tears, sticky or gummy areas and peeled or worn coatingb. Check for missing, frayed, or torn strapNote: Remove the hood to allow inspection6. Check the head harnessa. Dirtb. Inspect the straps for cuts, tears, missing parts or deterioration such as mildewing or frayingc. Check for missing, broken, bent, cracked, or corroded buckles
8 CHECK THE MASK (cont…)d. Pull on the head harness straps to make sure the buckles hold the straps tightlye. Check the finish on the buckles for chips or scratches exposing bare metalf. Check the head harness for loss of elasticity by putting the harness on7. Check the outlet valve and outlet valve diska. Grasp the tab at the bottom of the outlet valve coverb. Check for a missing, curled, or distorted diskc. Check for a sticking disk by rotating itd. Check the outlet valve disk for any nicks, cuts, tears, or ripse. Check the outlet valve seat for dirt and the cover for cuts
9 CHECK THE MASK (cont…)f. Check for moisture on the disk, wipe it clean with a lint- free clothg. Check for dirt or moisture on the inside of the cover, cleaning it off with a soft, clean, dry cloth8. Check the internal and external drinking tubesa. Check for missing tubesb. Check for cracks or cuts in the tubesc. Check the internal drinking tube for improper alignmentd. Check the external drinking tube for improper connections9. Check the airflow deflector for:
10 a. Insecure mounting inside the facepiece CHECK THE MASK (cont…)a. Insecure mounting inside the facepieceb. Flanges on the deflector that are not in the mounting holes of the facepiece or are brokenc. Check the mounting holes for cuts or tears10. Check the inlet valvea. Check for missing or improperly mounted inlet valve disk and valve bodyb. Check for a stuck valve body by blowing on the inlet valve diskc. Check the inlet valve disk for cuts, holes, tears, or dirt
11 CHECK THE MASK (cont…) 11. Check the nosecup assembly a. Check the nosecup and the nosecup valve seats for dirt, cracks, cuts, or holesb. Check for missing, curled, torn, or improperly seated nosecup valve disksc. Check for stuck disks by rotating them12. Check the voicemittersa. Check the retaining rings on the front voicemitter and the side voicemitter for corrosion, cracks, or nicksb. Check for retaining rings that are not hand-tight
12 CHECK THE CARRIER Check the carrier for the following : Dirt, sharp edges, torn straps, or missing hardwarePencil or pen markings on the carrierMildew, solvents, or abrasive materials that may harm the facepieceSeams for broken stitchesHook and pile fasteners for dirt
13 CLEAN THE MASK Clean your mask and carrier using only potable water and alcohol without wetting the canisterCAUTIONDo not DUNK the mask or the carrier in water.Do not allow the canister to become wet, a wetcanister is useless.
14 CLEAN THE CARRIERClean the carrier with the brush without soaking the carrier or using hot water, bleach, or detergentCAUTIONHot water, bleach, or detergent will reduce resistance of the carrier to water and mildew.
15 STORE THE MASK1. Ensure all components are completely dry before reassembling the mask and storing it.2. Ensure the carrier is completely dry before storing your M-40 series protective mask.