TP-6807 12/11
27
Section 5 Scheduled Maintenance
D
Signs
of
overheating
or
loose
connections:
discoloration of metal, melted plastic, or a burning
odor.
D
Other evidence of wear, damage, deterioration, or
malfunction of the transfer switch or its components.
If the application does not allow a power interruption for
the time required for the internal inspection, have an
authorized
distributor/dealer
perform
the
internal
inspection.
5.3.2
Other Inspections and Service
Have
an
authorized
distributor/dealer
perform
scheduled
maintenance,
service,
and
other
maintenance that ensures the safe and reliable
operation of the transfer switch.
See Section 5.4,
Service Schedule, for the recommended maintenance
items and service intervals.
Have an authorized distributor/dealer repair or replace
damaged
or
worn
internal
components
with
manufacturer-recommended replacement parts.
5.4 Service Schedule
Follow the service schedule in Figure 5-1 for the
recommended service intervals.
Have all service
performed by an authorized distributor/dealer except for
activities designated by an X, which may be performed
by the switch operator.
System Component or Procedure
See
Section
Visually
Inspect
Check
Adjust,
Repair,
Replace
Clean
Test
Frequency
Electrical System
Check for signs of overheating or loose connections:
discoloration of metal, melted plastic, or a burning odor
5.3.1
X
X
Y
Check the contactor’s external operating mechanism
for cleanliness; clean and relubricate if dirty *
5.3.1
X
D (clean
and lube)
Y
Inspect wiring insulation for deterioration, cuts, or
abrasion. Repair or replace deteriorated or damaged
wiring
5.3.1
X
D
D
Y
Tighten control and power wiring connections to
specifications
2.5
D
D
Y
Check the transfer switch’s main power switching
contacts’ condition; clean or replace the main contacts
or replace the contactor assembly as necessary
S/M
D
D
D
Y
General Equipment Condition
Inspect the outside of the transfer switch for any signs
of excessive vibration, leakage, high temperature,
contamination, or deterioration *
5.3
X
X
M
Check that all external hardware is in place, tightened,
and not badly worn
5.3
X
X
X
M
Inspect the inside of transfer switch for any signs of
excessive vibration, leakage, high temperature,
contamination, or deterioration *
5.3
D
D
D
Y
Check that all internal hardware is in place, tightened,
and not badly worn
5.3
X
D
D
Y
* Service more frequently if the transfer switch is operated in dusty or dirty areas.
See Section:
Read these sections carefully for additional information before attempting maintenance or service.
Visually Inspect:
Examine these items visually.
Check:
Requires physical contact with or movement of system components, or the use of nonvisual indications.
Adjust, Repair, Replace:
Includes tightening hardware and lubricating the mechanism. May require replacement of components
depending upon the severity of the problem.
Clean:
Remove accumulations of dirt and contaminants from external transfer switch’s components or enclosure with a vacuum cleaner or
by wiping with a dry cloth or brush.
Do not use compressed air to clean the switch because it can cause debris to lodge in the components
and cause damage.
Test:
May require tools, equipment, or training available only through an authorized distributor/dealer.
Symbols used in the chart:
X= The transfer switch operator can perform these tasks.
D=Authorized distributor/dealer must perform these tasks.
W=Weekly
M=Monthly
Q=Quarterly
S=Semiannually (every six months)
Y=Yearly (annually)
W/D=Wiring diagram
Figure 5-1
Service Schedule
Summary of Contents for RXT
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Page 24: ...TP 6807 12 11 24 Section 4 Service Disconnect SE Model Notes...
Page 28: ...TP 6807 12 11 28 Section 5 Scheduled Maintenance Notes...
Page 54: ...TP 6807 12 11 54 Section 5 Diagrams and Drawings Notes...
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