Doc No: OMM50002312
Rev: C Page 40 of 54
Subject to contractual terms and conditions to the contrar
y, this document and all the information contained herein are the confidential and exclusive
property of FMC Technologies, and may not be reproduced
, disclosed, or made public in any manner prior to express written authorization by FMCTI.
24. Replace the rod bearings (4) in the connecting rod and connecting rod caps.
Ensure that the rod caps are properly assembled with their mating connecting rod.
Torque the fasteners holding the end caps to the mating rod per the values given
in Fastener Torque Requirements, Section 11.0 of this manual. Use back and
forth pattern tightening with a torque wrench. After the cap screws are torqued, a
light strike to the cap with a rubber hammer will help properly seat the rod
bearings. Recheck torque after seating the rod bearings.
25. A dial indicator must be used to properly adjust the endplay of the crankshaft.
Improper adjustment may result in excessive temperature, noise, and reduced
bearing life. FMC recommends between .002" tight to .003" loose of internal axial
clearance (end play) when properly assembled. The final adjustment must be
verified using a dial indicator as indicated in the following steps.
26. Turn the crankshaft more than two revolutions to ensure the connecting rods are
loose and that there is no binding in the rod bearings. Also check that the wrist pin
joints are free and the crossheads move freely in the power frame.
27. Move the crankshaft to one side of the power frame using a light tap from a
rubber mallet or a pry bar. Rotate the crankshaft several turns and repeat the light
taps from a rubber mallet or the use of a pry bar to ensure the crankshaft is to one
side
28. Mount indicator base on the power
frame with the indicator tip on a
machined shoulder surface of the
crankshaft (do not measure from a
cast surface) and the axis of the
indicator parallel to the crankshaft.
29. Set the dial indicator to zero.
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