GE K-45404F Manuel d'utilisateur télécharger pdf (Page 16)

GEK-45404

CONTACT CLEANING

For cleaning fine silver contacts, a flexible burnishing tool should be used. This consists of a

flexible strip of metal with an etched roughened surface, resembling in effect a superfine file. The

polishing action is so delicate that no scratches are left, yet corroded material will be removed

rapidly and thoroughly. The flexibility of the tool ensures the cleaning of the actual points of

contact.

Fine silver contacts should not be cleaned with knives, files, or abrasive paper or cloth. Knives or

files may leave scratches, which increase caring and deterioration of the contacts. Abrasive paper or

cloth may leave minute particles of insulating abrasive material in the contacts and thus prevent

closing.

The burnishing tool described above can be obtained from the factory.

SERVICING

For servicing and adjustments see applicable instructions under ACCEPTANCE TESTS,

INSTALLATION, AND MAINTENANCE.

RENEWAL PARTS

It is recommended that sufficient quantities of renewal parts be carried in stock to enable the prompt

replacement of any that are worn, broken, or damaged. Parts bulletin number GEF-3897 gives a list

of those most subject to wear in ordinary operation, or to damage due to possible abnormal

conditions.

When ordering renewal parts, address the nearest Sales Office of the General Electric Company,

specify quantity required, and give name of part wanted, complete nameplate data, including serial

number. If possible give the General Electric Company's requisition on which the relay was

furnished.

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GE K-45404F Manuel d'utilisateur Page 16