Eaton Cutler-Hammer Digitrip RMS 510 Instructions Manual page 62

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61
SECTION
11
MAINTENANCE,
WARRANfl
AND SERVICE INFORMATION
'l
1.1 Preventative Maintenance Program
A periodic maintenance program
is essential
to
assure Breaker and Switchgear reliability and
integrity. Periodic maintenance, including testing,
inspection, adjustment, and repair should be
performed on both the Circuit Breaker and the
Switchgear Assembly. For normal operating condi-
tions,
a
minimum periodic interval of 12 months
is
recommended. However, additional factors, such
as equipment age, state of repair, general condi-
tion, local operating environment, number of
annual cycles, etc. must be considered in deter-
mining an effective maintenance interval.
1 1
.2
Breaker Maintenance
lnstallation of a Digitrip RMS Retrofit Kit on an
existing Circuit Breaker does not alleviate the user
from maintaining the Circuit Breaker
in
good
operating condition. The Digitrip
RIMS
Trip System
will greatly enhance the capability of the Circuit
Beaker
to reliably and accurately detect and
initiate
a
trip
in
the event of an overcurrent condi-
tion
or
fault. However, the ability of the Breaker
to
trip and clear the fault
is
directly dependent on the
operating condition of the
Breaker.
The user should continue to follow the applicable
instructions and procedures provided by the
Breaker manufacturer and incorporate them into a
periodic preventative maintenance program. The
following items
are
not all inclusive, but should be
an integral paft of such a program:
1.
Cleanliness: Breaker moving parts, insulation,
and current carrying pads should be kept clean
from dust, did, and sludge.
2.
Lubrication: The Breaker operating mechanism
should open (trip) and close properly and not
stick, bind,
or jam. The Breaker
should be
lubricated as required according to the
manufacturer's recommendations.
3.
Contact Condition and Adjustment: Breaker
moving and stationary arching and main
contacts should be in proper adjustment,
in
good condition, and free from burning and
pitting. Breaker primary and secondary
disconnecting contacts should be
in
good condition.
4.
General Condition and
Repair:
Breaker
hardware should be tight and retaining rings
intact. Worn out parts should be replaced or
repaired. Electrical connections and wire
insulation should be sound and free from
evidence of overheating.
5.
Digitrip RMS
Trip
Systern.' Section 8 provides
recommended testing procedures for Digitrip
RMS Trip System.
11.3 Warranty Procedure
Digitrip RMS Retrofit Kits include a limited
warranty for components for one
(1)
year from
the date of shipment. ln the event of a warranty
problem with a Retrofit Kit component contact
Cutler-Hammer by the channel through which the
Retrofit Kit was purchased. Contact the Cutler-
Hammer Retrofit Kit distributor, representative,
or installer (as applicable)
and provide the follow-
ing information:
1
.
Original order number by which the kit
component was purchased:
2.
Part description;
3.
Part catalog and/or style number; and
4.
Complete description of the problem.
lf the problem is covered under warranty, instruc-
tions will be provided for obtaining
a
component
replacement or for returning the component
for
repair.
11.4 Digitrip
RMS
Trip Unit Warranty
Digitrip RMS Trip Units
are
factory sealed and
are
not field serviceable. Breaking the factory seal,
opening the Trip Unit, and tampering with the
internal components will void any warranty. ln the
event of a problem with the Trip Unit, contact
your local Cutler-Hammer representative per the
instructions provided in
11-3 above.
Elf€ctiv€
9/01
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