Maintenance
9.3 Corrective maintenance
1LA5/6/7/9, 1LG4/6, 1MA6/7, 1MB..1/2/3/4/5 - SH 63 ... 355
126 Operating Instructions, 06/2018, A5E44455710A
Explosion hazard due to improper maintenance
If repairs to the anti-condensation heating are not carried out correctly, e.g. if unauthorized
or untested spare parts are used, this can result in explosions during operation in a
potentially explosive gaseous atmosphere. This can result in death, serious injury, or
material damage.
• Repairing and mounting the anti-condensation heating and the subsequent routine
testing must always be undertaken by experts from the service center (Page 163),
because this work requires extensive specialist knowledge.
• Only authorized and tested spare parts may be used.
Note
Before commencing removal, you should mark how each of the fastening elements has been
assigned, as well as how internal connections are arranged. This simplifies subsequent
reassembly.
If possible, assemble the machine on and alignment plate. This ensures that the mounting
feet surfaces are all on the same plane.
Avoid damaging the windings protruding out of the stator enclosure when assembling the
end shield.
Sealing measures
Sealing measures
1. For 1MB10, shaft heights 100...160, apply the appropriate liquid sealant, e.g. Fluid-D or
Hylomar to the centering edge.
2. Check the terminal box seals, and if required, replace these.
3. Repair any damage to the paint, also to screws/bolts.
4. Take the necessary measures to ensure compliance with the applicable degree of
protection.
5. Do not forget the foam rubber cover in the cable entry. Completely seal the holes, and
ensure that cables do not come into contact with sharp edges.
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