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MAF Assembly - TM-55-1930-209-14P-6_491
MAF Assembly - TM-55-1930-209-14P-6_493

TM-55-1930-209-14P-6 Water Purification Barges (NSN 1930-01-234-2165) Chlorination System Manual
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insert dirt & water 8. Place housing (15), wearplate seal surface down, on a clean work surface.  Apply a small amount of clean grease to a new dirt and water seal (20) and press the seal into the housing seal cavity.  The end of a hammer handle would be an appropriate tool.  Be sure the seal is not cocked or deformed as it enters housing seal bore.  SEE FIGURE 38. place housing 9. Place housing (15) assembly into assembly into vise a soft-jawed vise with coupling shaft bore down, and clamp the vise jaws against the edges of the mounting flange.  SEE FIGURE 39. CAUTION CAUTION:  Clamping on the body of the housing in the area of commutator bore could distort the housing and prevent the assembly of the commutator (9). NOTE NOTE:  The assembly of the rotor set (6) components, if required, should be done at this time in order to utilize the housing in the vise, as a rotor set assembly "Fixture".  SEE "Rotor Set Component Assembly Procedure" on page 23. NOTE NOTE:  The coupling shaft (11) has a timing mark on the small (output) end that is radically in line with two internal spline teeth and a "commutator drive pin slot" that transverses the opposite end of the coupling shaft, SEE FIGURE 40.  The "commutator drive pin slot" indicated by the timing mark is the only slot of two oil passage slots across the large end of the coupling shaft, wide enough to engage the commutator drive pin (10) at assembly.  This orientation of the coupling shaft splines aid drive pin slot is important to subsequent assembly procedures that will produce the required rotor (6A) lobe and commutator (9) "fixed" radial relationship at assembly. NOTE NOTE:  FIGURE 40, shows two coupling shafts to better illustrate the relative positioning of the tim- ing mark, drive pin slot and internal spline tooth. 18







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