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 TM 55-1905-223-24-3
(5) Replace the dampener if the difference in the measurements between any two of the four areas is
more than 0.010 inch (0.25 mm).
f. Install the dampener and pulley as follows:
(1) Install two guide studs in the crankshaft nose.
(2) Install the pulley and the dampener on the guide studs.
NOTE
Ensure the mounting surfaces of the crankshaft nose, the vibration dampener, and
the pulley are clean, dry, and free of burrs.
(3) Lubricate the capscrew threads and the face of the washers with clean engine oil.
(4) Install four of the six capscrews.
(5) Remove the guide studs and install the remaining two capscrews and washers.
(6) Tighten the capscrews to 190 ft-lb (260 N m) torque.
g. Repeat check for eccentricity and wobble in accordance with step b.
h. After eccentricity and wobble check have been satisfactorily accomplished, leave the dial indicator
mounted as shown in Figure 3-81.
i. Check crankshaft end clearance.
(1) Use a pry bar to move the crankshaft forward and backward while observing the dial indicator
gauge.
(2) End clearance must not exceed 0.022 inch (0.56 mm) with the engine mounted and generator
attached. If the measurement exceeds this figure, notify your supervisor. Installation of new thrust
washers is required by general support maintenance personnel.
j. Install the dampener belt guard.
k. Connect battery banks (starboard), operate air system (port), refer to TM 55-1905-223-10.
3-134
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