Westinghouse DK-15, Manual

Page: 46 / 96

Type DK-15 and DK-25 Air Circuit Breaker
Preface
It woul d be difficult to over -emphasize the
importance of adequate care of a l l protect! ve devices .
To assure proper fu nctioning, they shoul d be the sub­
j
ect of periodical , sy stematic and intel lige nt inspec­
tion .
Even the smal lest details of required mainten­
ance should not be neglected if costly failures of
equipment and service are to be avoided . Maintenance
must include occasional checks on calibration as wel l
a s on the coordination and freedom of a l l moving parts .
The purpose of this Instruction Book on the DK circuit
breakers is to provide a guide for those charged with
these responsibilities � It is not possible to outline
a procedure that wil l apply in a l l cases .
The fre ­
quency anQ character of inspection wil l for the most
part be a matter of experience .
I n genera l , light
monthly inspection, with a thorough inspection semi ­
annua l ly , should be a minimum . rhe Company wil l be
glad to furnish such additional information a s may
be needed to amplify or clarify the .se instructions .
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