Marechal Electric DSN1 Mode D'emploi page 22

►MAINTENANCE
• Ensure that the fixing screws, caps and cable glands are
tight.
• Verify that the weight of the cable is supported by the strain
relief mechanism and not by the terminal connections.
• To inspect the contacts, depress the spring-loaded ejection
ring on two opposite points. The safety shutter can then be
rotated clockwise to inspect contact tips. Any deposit can be
rubbed off with a clean cloth, compressed air, or a fine emery
cloth. Do not file or grind as this would damage the silver-
nickel tips. If necessary, replace damaged contacts. Do not
forget to re-lock the safety shutter after inspection.
• To replace contacts on Poly-cased DS and DSN, a special key
(P/N° 31-A500-1) is available to remove the retaining clip of
the casing and gain access to the contacts.
• Periodically inspect IP gaskets for wear and tear. Replace as
necessary.
• Regularly check the continuity of the earth circuit by electric
tests.
IS 06-2 [DSN] Rev A.1 - 2022-11
22/79 . ,