Document
ma-mswg-en1817
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Assembly Instructions
MSW from M72 to M140
©Spieth
Proprietary
notice
ISO 16016
Previous document: ma-mswg-en1604
See
www.spieth-me.de/english/service-download/catalogue-instructions/
For any questions, requests or suggestions, please contact
info@spieth-me.de
4 Disassembling Spieth Locknuts
If handled correctly, Spieth locknuts can be reused several times. Due to the adjustments made, once a locknut
has been locked onto a spindle thread you can only reuse it on the same thread after they have been
disassembled.
Caution!
Unlock all the clamping screws stepwise and crosswise to avoid overstraining the screws. Otherwise,
the screws may fracture or the locknut or its adjoining components may be damaged.
To disassemble, proceed in reverse assembly order.
1. Unlock: Unlock the pretensioning bolts by undoing the locking thread pins.
2. Declamping: Slightly undo pretensioning bolts; then declamp them stepwise in the specified order.
3. Undo: Slightly undo clamping screws; then declamp them stepwise and crosswise.
4. Unscrew: Unscrew locknut by hand from threaded spindle.
If used as intended the diaphragm will open the interlocked thread flanks during unlocking. This restored joint
play makes it easy to unscrew the locknut manually without damaging the threaded spindle.
Please note:
Following complete disassembly, slightly (manually) tighten the loosened clamping screws until they
are flush. In any case, avoid tightening the clamping screws without a fully covered nut thread.
To enable later reuse, clean, preserve, and store Spieth locknuts correctly. Prior to reuse, proceed as detailed in
section 3.1, "Preparing for assembly" ff.
If non-original Spieth spare parts are used, Spieth-Maschinenelemente GmbH & Co. KG assumes no liability or
warranty.
5 Maintenance and servicing of Spieth clamping sleeves
Spieth clamping sleeves are low-maintenance. If used as intended, Spieth clamping sleeves provide permanently
precise pretensioning and positioning of the bearing on a spindle shaft.
We recommend periodic visual inspections of the clamping sleeves for potential damage.
Follow general safety notices when using Spieth clamping sleeves.
Caution!
Never touch actively rotating components. Take protective measures against accidental contact.
If you notice irregularities with the Spieth clamping sleeves during operation, immediately switch off the
machine's drive.
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