Doc No: OMM50002312
Rev: C Page 37 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
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4. Slide the two rod bearing halves (4) from
each connecting rod (3). Note that these parts
sometimes adhere to the pins (journals) on
the crankshaft (2).
Connecting rods and caps are matched
sets and must always be reassembled
with their original mate in the same
orientation. Note the numbered codes
stamped on each half of the connecting
rod assemblies and make certain they
are installed as matched set and in the
same orientation when reassembling
the pump.
5. Remove the pinion shaft bearing
housing hex head cap screws (29),
the left and right pinion housings (18
and 19), and pinion gaskets (21) from
the power frame. The gaskets may
adhere to the power frame surface
and can be left in place if they are not
damaged. It may be necessary to tap
on the housings with a rubber mallet
to free them from the pump frame.
6. The pinion shaft (17) with bearings
may then be removed from the drive
side by using a brass rod (or other soft material) and mallet to drive the shaft out.
7. To remove the piston rod seals, refer to Section 10.4.1, "Replacing Piston Rod Oil
Seals."
8. Push the connecting rod (3) and crosshead assemblies (6) as far forward into the
power frame as possible to provide clearance for the crankshaft. The connecting
rod bolts should be removed completely to provide additional clearance when
removing the crankshaft and to reduce the possibility of damage to the crankshaft
journals.
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