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

MAF Assembly - TM-55-1930-209-14P-6_492

MAF Assembly - TM-55-1930-209-14P-6_494

TM-55-1930-209-14P-6 Water Purification Barges (NSN 1930-01-234-2165) Chlorination System Manual
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extend timing 10. Using chalk or marking pencil, ex- mark tend the timing mark that is on the end of coupling shaft (11) up the side of the coupling shaft so that the timing mark location will be visible for alignment purposes when the coupling shaft is assembled into the housing held in the vise. SEE FIGURE 41. install coupling 11. Be-sure that a generous amount of shaft clean wheel bearing grease is applied to housing bearing (19) then install coupling shaft (11) into housing (15) seating it against thrust washer (13). SEE FIGURE 42. The coupling shaft must rotate smoothly on the thrust bearing package. insert new 12. Insert new drive pin (10) if it was drive pin removed, into the commutator (9) drive pin hole until it bottoms out. SEE FIGURE 43. install commutator 13. Install commutator (9) assembly assembly into housing (15) commutator bore. SEE FIGURE 44, The com- mutator must not be cocked as it enters the bore and the drive pin (10) must be in line with the coupling shaft (11) commutator drive pin slot indicated by the timing mark. Engage the drive pin (10) protruding from the com- mutator into the coupling shaft drive pin slot, rotating the coupling shaft if necessary. The commutator must be below the housing wearplate surface when correctly seated. SEE FIGURE 45. NOTE NOTE: The commutator drive pin (10) and coupling shaft (11) drive pin slot, at this point in the assembly, are visible through the commutator center cavity for coupling pin engagement purposes in addition to the timing mark. CAUTION CAUTION: Do not force com- mutator into bore. It is a close slip fit and must rotate. 19

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