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9.4.8 Seal the motor

Extreme caution and attention to cleanliness are vital to installation.

● Clean all bare joints between parts such as housings, bearing shields and bearing bushes

etc., and remove old sealant material.

● 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 sealing elements, such as those on the terminal boxes, for elasticity, aging or

damage, and renew them if they are no longer effective.

Replace the seals if necessary with original parts or with tested sealing elements. The seals

must be fully bonded to the motor and the air intake housing. It is impermissible to have gaps

and holes where seals make contact.

● Surfaces whose mating faces are sealed using liquid sealant can be resealed by applying

the original liquid sealant (Hylomar M).

● 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).

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.

Note

If you have any questions, contact the Service Center.

Siemens SIMOTICS HV C User Manual

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