TM 10-7310-281-13&PMODERN BURNER UNIT (MBU)0023 00UNIT MAINTENANCE PROCEDURES0023 00-14Replacing Neoprene Air Lines.There are two neoprene air lines extending from the fuel delivery block(1)assembly to the air compressor(2). Note that the two lines are different sizes (WP 0054). Thereplacement procedure for both air lines is identical.To replace either of the neoprene air lines (3), squeeze the tabs on hose clamp (4) with a pair of pliersand slide the clamp off the fuel delivery block fitting (5) and onto the air line (3).Squeeze the tabs on hose clamp (6) with a pair of pliers and slide the clamp off the air compressor fitting(7)and onto the air line (3).After removing the clamp, grasp the end of the air line (3) connected to the fuel delivery block fitting (5)and pull while wiggling from side to side, until the line is free. If any of the fuel delivery block fittings (5)require replacement, simply loosen with an open end wrench and install a new fitting.Remove the end of the air line (3) connected to the air compressor fitting (7) in a similar manner. Be sureto wipe up any fuel that may have dripped from the line. If any of the air compressor fittings (7) requirereplacement, simply loosen with an open end wrench and install a new fitting. Be sure to clean the areawhere the fittings install into the compressor of pipe sealer residue. Apply new joint sealer compound (WP0060, Table 1, Item 6) to the fitting threads before installation.Using the damaged air line as a size guide, cut a new piece of air line of the same size from the bulksupply of neoprene hose. Remove the clamps (4,6) from the damaged air line and install on the new line,sliding each about 1.5 to 2 inches from the end.Reinstall the new line, pushing one end fully onto the fuel delivery block fitting (5) and the other end ontothe air compressor fitting (7).Squeeze the tabs on the clamps (4,6) with a pair of pliers and slide one clamp up on the fuel deliveryblock fitting (5) and the other end onto the air compressor fitting (7). Be sure to position the tabs so thatthey can be easily accessed should service be required at a later date.Replacement of Neoprene Air Lines4671235
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