TM 5-4310-393-14C. Replace.1.Replacing the V-Belt.a.Remove the engine unit V-belt guard (paragraph 2-7) Loosen the four bolts which hold the engine mountingbracket to the compressor frame and slide the engine toward the compressor. Remove old V-belt and replace it with anew V-belt size AP-78.b.Run the compressor for a few minutes to seat the belt. Stop and restart the compressor while observingthe belt There should be a slight bow on the bottom or slack side of the belt. If there is no bow, the belt is too tight. If thebelt slips or squeals, it is too loose. In either case, readjust tension.c.Replace engine unit V-belt guard after belt adjustments are complete.3-14.3. COMPRESSOR INTAKE AIR CLEANER FILTER.This task covers: A Inspect B. ServiceTools:Materials/Parts:Tool kit, General Mechanic's SetBrush NSN 8020-00-224-8021Lint-free cloth NSN 7920-00-044-9281Detergent, non-ionic NSN 7930-00-282-9699Filter element (PIN N00070)O-Ring (PIN 013757)O-Ring (P/N N04451)Grease, Halo Carbon NSN 9150-00-754-2760Equipment Conditions:Secure equipmentPurge air pressureA dry micronic filter is used to filter the intake air (Figure 3-11).A. Inspect.1.Checking the Air Intake Hose.a.Check hose for damage.b.Inspect air intake prefilter, ensure it is free from obstruction.B. Service.1.Cleaning the Intake Filter.a.Remove cover (1) and filter element (2) (Figure 3-11, Item 2). Note position of element in housing.b.Clean the filter element with a brush or by blowing through it with low pressure compressed air, from insideoutc.Clean inside of filter housing with a damp cloth and non-ionic detergent.2.Reinstalling/Replacing the Filter Element.3-19
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