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Instructional Booklet
Page 18
Effective: August 2007
SECTION 7: MAINTENANCE AND
COMPONENT REPLACEMENT
7.1 Introduction
HIGH VOLTAGES ARE PRESENT IN AND AROUND TRANSFER
SWITCH EQUIPMENT. BEFORE INSPECTING OR MAINTAINING THIS
EQUIPMENT, DISCONNECT THE LINE POWER FROM THE EQUIP-
MENT BEING SERVICED BY OPENING AND LOCKING OUT, IF POSSI-
BLE, THE NEXT HIGHEST DISCONNECT DEVICE. FAILURE TO
FOLLOW THIS PROCEDURE COULD CAUSE SEVERE PERSONAL
INJURY AND/OR DEATH.
In general, ATS equipment is designed to be relatively mainte-
nance free under normal usage. However, because of the variabil-
Figure 24. Wiring Diagram for the CHGENLC ATS.
WARNING
For more information visit: www.eaton.com
O & M Manual for the CHGENLC Automatic
Transfer Switch with ATC-100 Control
ity of application conditions and the importance placed on
dependable operation by this type of equipment, inspection and
maintenance checks should be made on a regularly scheduled
basis. Since equipment maintenance will consist mainly of keep-
ing the equipment clean, the frequency of maintenance will
depend, to a large extent, on the cleanliness of its surroundings.
If a significant amount of dust or foreign matter is present, a more
frequent maintenance schedule should be followed.
It is suggested that visual inspections of the equipment be made
on a regular basis, not just during regularly scheduled periods.
Always be alert for an accumulation of dirt in and around the
structure, loose parts and/or hardware, cracks and/or discoloration
to insulation, and damaged or discolored components.
Figure 24 is the wiring diagram for the CHGENLC ATS switch.
Note:Only qualified and experienced personnel should attempt any diagnos-
tic work using this diagram.
IB00405002E
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