9.2.2 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 gasket. 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 venting the solvent, if necessary while maintaining a
restriction on the assembly time.
5. Retighten the fixing screws of the cover after a few minutes after the liquid gasket has set.
Note
Service Center
If you have any questions, contact the Service Center.
See also
Service and Support (Page 155)
Maintenance
9.2 Corrective Maintenance
SIMOTICS TN Series N-compact 1PQ8
Operating Instructions 11/2018 123
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