Chapter 8 Maintenance
179
The daily inspecting contents and cautions are listed in Table 8-1.
Table:8-1 The daily inspecting contents and cautions
serial
number
Inspection
part
Inspection
part
Inspection item Access standard
1 Display
LED
monitors
Display normal or
abnormal
Confirmed by
operation mode
2
Cooling
system
Fan
Rotate flexibly,
Abnormal sound
Without abnormal
3 Main part
Inside
cabinet
Heat, abnormal
sound or smell
Without abnormal
4
Environme
nt
Ambient
Temperature
humidity, dust,
Hazardous gas
According to 2.2
5 Voltage
Input/
output
terminal
Input/output Voltage
normal of not
According to
appendices 2
6 Load Motor
Heat, abnormal
sound of vibration
No abnormal
8.1.2 Regular Maintenance
The power supply must be cut off before regular maintenance. Only after the monitor has
no display and charge LED has lit off 5-10 minutes can the maintenance begin. On the
other hand, you will risk electric shock because there are storage capacitors within the
inverter that will hold charge even after the input power is disconnected.
The regular maintenance contents and cautions are listed in Table 8-2.
Table: 8-2 The regular maintenance contents and cautions
Component Check Corrective Action
External
Terminals,
Connectors,
Mounting Screws,
etc.
Loose screws or
connectors
Securely tighten.
Heat sink Build-up of dust and dirt
Blow with dry, compressed
air( 39.2×10
4
to
58.8×10
4
Pa(4 to
6kg.cm
2
)pressure)
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