Flowserve IJ, Installation Operation & Maintenance

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IJ PUMP OPERATION AND MAINTENANCE MANUAL
6-1 BO2660-01
6. REPLACEMENT AND REPAIR
Replacement and repair instructions cover the disassembly, cleaning, inspection, repair (or
replacement), and assembly of the major assemblies that make up the pump. Repair instructions for
principal auxiliary equipment are prepared by their manufacturers (see APPENDIX or your plant's
data file).
6.1 GENERAL INSTRUCTIONS
6.1.1 ITEMS AND DETAILS EXCLUDED FROM INSTRUCTIONS
Since removal, installation, and tightening procedures for common hardware such as bolts, nuts, keys,
and connectors are apparent to the journeyman millwright, detailed steps for handling such hardware,
where it is external to the pump, are not included in the repair tasks. Accordingly, removal and
installation procedures are not included for piping, coolers, oil filter, and instruments (gauges,
thermometers etc.). Unless there is a handling requirement that is peculiar to the pump, specific lifting
and related rigging instructions are not given in this manual.
6.1.2 DISTURBING AN INSTALLATION
It is unnecessary to disconnect the pump's suction and discharge piping or to change the position of
either pump or driver except to remove it from the baseplate. Auxiliary piping should be disconnected
only at such points as necessary for the removal of a part of the pump. When piping is disconnected,
clean material such as plastic should be securely tied over openings to prevent entrance of foreign
materials.
6.1.3 GASKETS REQUIRE CONSIDERATION
When disassembling parts separated by a gasket (see ASSEMBLY drawing in the back of this
manual), make certain that all of the old gasket is removed. Make certain that the new gasket is of the
same material and has the same thickness as the old one and that it is properly positioned for
assembly.
6.1.4 WHEN TO REPLACE WORN PARTS
See OPERATING SPECIFICATIONS.
6.1.5 PARTS ORDERING INFORMATION
See PARTS ORDERING AND SERVICING INFORMATION.
6.1.6 SETSCREWS
Unless specified otherwise in the instructions for assembly of bearing, seal, head, and internal
assembly, stake all setscrews.
6.1.7 WEAR PARTS
Before you begin to disassemble the pump, bearings, or seals, you should have on hand new
replacements for those parts subject to considerable wear, abuse, or deformation such as bearing
journals, thrust bearing shoes, wearing rings, bushings, O-rings, gaskets, seal bellows, seal primary
rings, and seal mating rings. Of the parts named, O-rings, gaskets, and seal bellows must be new for
reassembly.