Doc No: OMM50002312
Rev: C Page 39 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.
of wear. The connecting rod bearings should be inspected for deep scratches or
the wear on top metal surface.
15. If damaged, replace the pinion oil seal (22) using a screwdriver or similar tool.
16. Thoroughly clean all parts with solvent and apply a thin coat of oil before
reassembly.
17. Tapered roller bearing cones (15) must be heated to aid in assembly onto the
shaft. Always observe proper safety procedures and use heat resistant tools and
gloves when handling hot parts. There are a number of recommended methods
for heating bearings. Electric ovens or electrically heated oil baths may be used,
but only when accompanied by proper thermostatic control.
18. To replace the tapered roller bearings on the crankshaft, heat the cones to a
maximum of 300 F (149 C). Slide them down the shaft until they are fully seated
against the shoulder. The hot cone may pull away from the shoulder unless it is
held in position until it cools enough to grab the shaft. Use a .001" thick feeler
gauge to ensure the cone is fully seated against the shoulder after parts have
cooled.
19. Use a press to seat the new cups (16) into the bearing housings. Never use new
bearing cones with old bearing cups. Always use matched sets from one
manufacturer.
20. Reassemble the crosshead assemblies and connecting rods. Ensure that the set
screws (25) retaining the wrist pins (5) are in place if they were removed for repair
or inspection of the wrist pin bushings. The set screw must engage the flat on the
wrist pin. Refer to Section 11.0 for torque specifications.
21. Push the crosshead/connecting rod assemblies fully forward in power frame to
provide maximum clearance for the crankshaft. Ensure crosshead assemblies are
replaced in the same orientation and in the same cylinder bore from which they
came.
The oil cup pocket feeding lubricant to the wrist pin bushing is on the top
of the connecting rod and should be in the up position.
22. Install crankshaft in the power frame. Be sure not to scratch the bearing surfaces
of the crankshaft.
23. Inspect the o-ring (27) or gasket (10) that seals the bearing housing and replace if
damaged. Reinstall the shims (11) and bearing housings. As a starting point,
install the same number of shims that the pump originally had prior to service
work. Refer to Section 11.0 of this manual for Fastener Torque Requirements.
To Next Page
Loading...