Doc No: OMM50002312
Rev: C Page 38 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.
Installation Tip: Mark the bearing housings and power frame for installation in the
original position.
9. Remove the hex head cap screws (29), bearing housings (9), gaskets (10), and
shims (11) from both sides of the pump. Count and record the shims on each side
to facilitate reassembly. The gaskets may adhere to the power frame surface and
can be left in place if they are not damaged. The bearing cups (16) will remain in
the bearing housing.
10. To remove the crankshaft, work the
crankshaft to the left when viewing from the
rear opening of the power frame. The
bearing cone (15) will be partially out of the
bearing housing opening. The throws or
journals may have to be rotated as the crank
is removed to clear the connecting rods. Slip
the crankshaft end on the right out the back
of the power frame and remove. The
crankshaft should be handled carefully to
prevent the critical bearing surfaces from
being scratched or damaged.
11. Bearing cones (15) may be removed
from the crankshaft using an automotive
type bearing puller. Bearing cups (16)
can be removed from the bearing
housing using a puller if a sufficient lip is
available for the puller arms to grab. An
alternate procedure involves running a
weld bead around the inside surface of
the cup. When cool, this will reduce the
interference between the cup and
bearing housing enough to free the cup.
If either the cup or cone is replaced, the
corresponding cup or cone should be
replaced as they are a matched set.
12. Pull the connecting rod/crosshead assemblies (3
and 6) from the power frame. Mark each
connecting rod and crosshead assembly to
ensure they are reassembled into the same bore
from which they were removed.
13. Remove the set screws (25) and slide the wrist
pin (5) out of the crosshead (6) if crosshead or
connecting rod (3) requires service. Keep
components matched together.
14. Inspect all components for signs of wear or damage and replace if necessary.
Carefully check the crankshaft bearing surfaces for pits, scratches, or other signs
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