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 TM 55-1905-220-14-4
3-54. LINE SHAFTING (PORT SIDE ONLY) - MAINTENANCE INSTRUCTIONS (Continued).
LOCATION
ITEM
ACTION
REMARKS
ADJUSTMENT (Cont)
critical. Place a 0.002 inch (0.005 cm) feeler
gauge between the flanges of the coupling. The
feeler gauge is moved (slid) completely around
the coupling.
(3) Then the marine gear flange coupling is rotated
90, 180, and 270 degrees with the feeler blade
being moved around the flange again in each
successive position. If the alignment is correct,
the feeler gauge will fit snugly, with the same
tension, all around the flange coupling.
(4)
If the alignment varies during rotation, then
further alignment is necessary, or the marine
gear and shaft couplings could be checked for
improper face runout. Face runout on the
marine gear output flange can usually be
corrected by repositioning the coupling on its
spline. Shaft coupling runout is usually due to
an inaccuracy of taper fit or key interference.
3-979
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