Siemens SIMOTICS XP 1MB5 SH400, Operating Instructions Manual

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● Smear bare joints between parts with non-hardening, permanently flexible sealant, such as
"Hylomar M". Follow the manufacturer's application and safety instructions when doing this.
● Check all the sealing elements, for example on the terminal box, for elasticity, aging or
damage. Replace any sealing elements if they are no longer fully effective.
Replacing seals
1. Replace the seals if necessary with original parts or with tested sealing elements.
2. Completely bond the seals to the motor and the air intake housing. It is impermissible to
have gaps and holes where seals make contact.
3. Surfaces whose mating faces are sealed using liquid sealant can be resealed by applying
the original liquid sealant (Hylomar M).
4. Surfaces whose mating faces are sealed using sealings that adhere to one side only can be
resealed with the original sealing using the original adhesives (Loctite).
Attaching the cover
If you are installing covers that are sealed with liquid gasket, proceed as follows to maintain the
IP degree of protection of the machine before closing it again:
1. Use only approved liquid sealants.
2. Clean the sealing surfaces according to the technical data sheet of the liquid sealant. The
sealing surfaces must be clean and dry before reassembly.
3. Apply the liquid gasket as a continuous bead with a diameter of approx. 3 mm.
4. Assemble the components after the solvent has had a chance to vaporize, while still
assembling within the specified assembly time.
5. Retighten the fixing screws of the cover after the liquid sealant has set.
If you have any questions, contact the Service Center.
Maintenance
9.3 Corrective maintenance
1MB5 SH 400/450
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Operating Instructions, 05/2019, A5E45959221A