Keep tank breathing fresh air.The air induction system on your tank is like a giant vacuum cleaner--it sucks up anything that gets close. That's the reason for your tank's seals and filters. They screen out sand and dirt so that only clean air can get through. They also keep out larger debris that can dent, crack or break compressor compressor, machine that decreases the volume of air or other gas by the application of pressure. Compressor types range from the simple hand pump and the piston-equipped compressor used to inflate tires to machines that use a rotating, bladed element to achieve blades. If you want them to continue to stop potential damage, pay special attention to these important PM points: Trees and bushes make a good hiding place for your tank, but they also result in clogged air precleaners. Leaves that fall on or near the air inlets get sucked onto the precleaner. Enough leaves will cut off airflow and lower power output. If the AIR CLEANER CLOGGED FILTER light comes on, make the precleaner one of your first checks. While you're there, take a close look at the baffle seals. Cracked, torn or missing seals allow dirt and oil from the engine to clog the air cleaner assembly element strainers Water lines or kitchen systems can get gravel, deposits that break free, and other stray items in the line. The velocity of the water pushing them, they can severely damage or clog devices installed in the flow stream of the water line. . NSN NSN National Stock Number NSN Nokia Siemens Networks NSN National Storytelling Network NSN NATO Stock Number NSN New Substances Notification (CEPA) NSN National Student Number (NZ) NSN Never Say Never 5330-01-225-6106 gets a new short seal. The longer seal is NSN 5330-01-320-3696. Next, eyeball See eyeballs and eyeball driven. the bottom pre-cleaner seal. If the seal is missing, loose or torn, replace it. There are two different seals available: NSN 5330-01-166-5798 and NSN 5330-01-329-6614. The seal you use depends on the type of precleaner in your tank. Check your -24P-1 TM to match the correct seal with your precleaner. V-Packs The three V-packs on all tanks not equipped with the pulse jet system (PJS PJs or PJ's or pj's pl.n. Informal Pajamas. [p(a)j(ama)s, pl. of pajama.] ) should be removed, cleaned and inspected after every operation. V-packs on PJS-equipped tanks are self-cleaning. Skirt Seals If you're having problems with clogged air cleaner intake filter elements (V-packs), missing fender skirt seals could be the cause. Those rubber strips are there to seal the area between the skirts and hull. Missing seals let dirt and dust get sucked inside the fender skirts Fender skirts, known in Australia as spats, are pieces of bodywork that cover the upper portions of the rear tires of an automobile. They are typically detachable to allow for tire changes. They are implemented for both aesthetic and aerodynamic reasons. . The engine pulls the dirt into the intake system where it clogs up the V-packs. All the seals are important, but pay special attentionthe at skirts 4, 5 and 6 on the left side of the vehicle. These seals are closest to the air intake grills and can let in the most dirt. NSNs for the seals are listed in Figs 261-264 and 266 of TM 9-2350-255-24P-1 (Oct 92) for the M1, Figs 263-266 and 268 of TM 9-2350-264-24P-1 (Sep 01) for the M1A1, Figs 242-245 and 247 of TM 9-2350-288-24P-1 (Jul 01) for the M1A2 and Figs 241-244 and 246 of TM 9-2350-388-24P-1 for the M1A2 SEP (Feb 01). The preferred cleaning method is the V-pack cleaning wand A handheld optical reader used to read typewritten fonts, printed fonts, OCR fonts and bar codes. The wand is waved over each line of characters or codes in a single pass. . You'll find info on the wand in the "unusual conditions" section of your-10-2 TM's operating instructions. [ILLUSTRATION OMITTED] If the cleaning wand isn't available, shake the V-packs, making sure not to hit them against anything harder than your hand. Brush dirt and dust from the elements with your hand. Then, have the elements properly cleaned by your unit maintenance folks as soon as possible. [ILLUSTRATION OMITTED] * Eyeball the bead bead Small object, usually pierced for stringing. It may be made of virtually any material—wood, shell, bone, seed, nut, metal, stone, glass, or plastic—and is worn or affixed to another object for decorative or, in some cultures, magical purposes. on the front face of each V-pack element for dents or sharp edges that could cut the plenum In a building, the space between the real ceiling and the dropped ceiling, which is often used as an air duct for heating and air conditioning. It is also filled with electrical, telephone and network wires. See plenum cable. box seal. Then check for buckling on the rear face of the element. Either problem means you need a new V-pack. * Look for broken welds and cracks in the plenum air box. Dust trails along the welds and seams of the box are a good sign of a leak, so tell your mechanic. * Look for form cracked or missing plenum box seals. A missing seal makes your tank NMC NMC Nursing & Midwifery Council (UK) NMC NSSDC Master Catalog (NASA) NMC Northwestern Michigan College (Traverse City, Michigan) NMC National Meteorological Center . Those three seals also deteriorate over time, so check each one by measuring the depth of the depression made by the V-pack bead in the seal. If the depression measures more than 3/16 inch, get the plenum box seal replaced. 1. Clean off the old seal and adhesive completely. To do it right you'll need a lot of elbow grease--combined with a rag, dry cleaning dry cleaning, process of cleaning fabrics without water. Special solvents and soaps are used so as not to harm fabrics and dyes that will not withstand the effects of ordinary soap and water. Dry cleaning began in France about the middle of the 19th cent. solvent and a wire brush wire brush n → brosse f métallique wire brush wire n → Drahtbürste f wire brush n → . 2. Spread adhesive, NSN 8040-00-664-4318, in the seal groove. Use enough to hold the seal, but not so much that it squeezes out around the seal. The right amount of adhesive keeps the seal from sticking to the airbox frame and ripping loose every time you remove the precleaner. 3. Apply a very light coat of adhesive to the bottom of the new seal and press it into the groove with your finger. Take extra care not to twist the seal as you put the rounded side in the mounting groove. A twisted seal is not airtight air·tight adj. 1. Impermeable by air. 2. Having no weak points; sound: an airtight excuse. airtight Adjective 1. . 4. Let the adhesive dry completely before you put the precleaner back in place. Put a dab of adhesive on a piece of paper. When it's dry, the seal should be, too. HERE'S ANOTHER WAY TO CHECK THE SEALS ... 1. Apply chalk to the raised portion of the V-pack bead. 2. Install the V-pack and secure the holding clamp. 3. Remove the V-pack and eyeball the plenum box seal There should be a complete chalk line chalk´ line` n. 1. a string impregnated with powdered chalk, used in construction to mark a straight line on a surface, such as a wall. around the seal from contact with the V-pack bead. If the chalk line is broken, the V-pack may not be sealing correctly. So, get your mechanic to install a new seal, NSN 5330-01-098-6807. Remember to wipe the chalk off the V-pack bead and seal after testing. This method works especially well if you are putting new V-packs in without replacing the plenum box seals. But, it's a good idea to put in new seals along with the new V-packs whenever possible. WHAT'S HIS PROBLEM? THAT DEPENDS ... WHEN WAS THE LAST TIME WE PULLED PM ON THE AIR INDUCTION SYSTEM? [ILLUSTRATION OMITTED] A NEW SEAL IS USELESS, THOUGH, UNLESS YOU PUT IT ON RIGHT. HERE'S HOW ... [ILLUSTRATION OMITTED] |
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