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DISASSEMBLY TO REPLACE BEARINGS AND/OR MECHANICAL SEALS


发表时间:[2013-4-7 9:52:36] 标签:
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The pumps are manufactured in such a manner as to make it possible to replace
the mechanical seals and the bearings without total disassembly of the pump, but
only by removing the bearing housings VDMA 357 or VDMA 350.
Bearing housing disassembly can be carried out by following the sequence listed
on table 1 and 2. Following the row of the specific pump model, find the sequence
and the numeric quantity of the components to be disassembled.
In order to remove the bearing housings a suitable gear puller is required.
NOTE: Pumps series 32 have free floating impellers. To prevent the shaft from slid-ing out of the pump, it is recommended to remove and replace the mechanical
seal, bearing housing and bearings one side at a time, or make provision to
secure the shaft so it does not slide out of the pump.
WARNING: Handle the mechanical seals with care to prevent damaging their most
delicate parts.
Table 1 - DISASSEMBLY OF BEARING AND MECHANICAL SEAL - DRIVE END

Table 2 - DISASSEMBLY OF BEARING AND MECHANICAL SEAL - NON DRIVE END

Inspect the disassembled components and procure all original spare parts such
as bearings, mechanical seals, gaskets, seal rings, etc. Any non-original spare
parts, shall be dimensionally compatible with the sizes and performances of the
original component. Carefully clean all parts that are still in good conditions. See
chapters 2 and 3 for disassembly instructions of mechanical seals and bearings.


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