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List of Periodic Inspection
Inspection
cycle
Inspection
parts
Inspection item
Inspection method
Daily
Daily
Daily
Daily
Daily
Environment
Confirm environment temperature, humidity,
vibration and whether there’s dust, gas, oil
mist and water drops and so on.
Are there any foreign bodies like tools or
dangerous goods nearby?
With eye survey
With eye survey and
apparatus measuring
Voltage
Are voltages of main circuit and control
circuit both normal?
Measure with a multi-
meter
Keyboard
Display Panel
Is the display clear?
With eye survey
Is any character missing?
Half
a
year
Half
a
year
Mechanism
Parts
Is there any abnormal sound or vibration?
With eye survey and
hearing
Are the bolts (fasteners) loose?
Half
a
year
Half
a
year
Is there any distortion and damage?
Is there color change due to overheat?
Half
a
year
Is any character missing?
Fasten
With eye survey
With eye survey
With eye survey
Half
a
year
Daily
Main Circuit
Have any bolts been loose and dropped off? Fasten
Is there distortion, crack, to overheat and
aging in the machine and insulation?
damage or color change due
Half
a
year
Is it stained with dust or defacement?
With eye survey
With eye survey
Daily
Half
a
year
Main Circuit:
Terminals and
Wiring
Is there color change and distortion due to
overheat in the conductor?
With eye survey and
hearing
Is there any damage and color change in the
wire protection?
Half
a
year
Is there any damage?
With eye survey
With eye survey
Half
a
year
Half
a
year
Is there any looseness between the bolts and
the connector?
Fasten
Is there any odors and color change?
Half
a
year
Is there color change. damaged and
distortion due to corrosion?
Smell and hearing
With eye survey
Half
a
year
Is there leakage and distortion of the
capacitor?
With eye survey
Daily
Daily
Main Circuit:
Terminal Block
Is there leakage,color change,crack and
shell inflation?
With eye survey
Has the safety valve loose? Is there
significant inflation in the valve?
Daily
Measure static capacity according to the
need
With eye survey
Measure with a multi-
meter
Daily
Is there abnormal odor or crackle in the
insulator due to overheat?
With eye survey
Is there any broken wire?
Daily
With eye survey, or open
the connection at one end
and measure with a
multimeter
Main Circuit:
Filter
Capacitor
Please wipe the polluted areas with chemically neutral cleaning cloth. Sweep the dust with
electric cleaner.
Note
!
Is there abnormal noise of vibration or odor?
Daily
With hearing, eye survey
and smelling
Main Circuit:
Resistor
Half
a
year
Half
a
year
Half
a
year
Daily
Daily
Main Circuit:
Transformer
and Reactor
Is there noise of vibration while operating?
Are the junctions well connected?
With eye survey
With eye survey
Main Circuit:
Control PCB
Connector
Is there abnormal noise or vibration?
With hearing, eye survey
and turn with hand (must
cut off the power)
Are the bolts loose?
With eye survey
Is there color change due to overheat?
Half
a
year
Is there any blockings or foreign bodies on
the radiator and the air inlet and outlet?
With hearing
Fasten
Cooling System:
Cooling Fans
EC590
EC590
Regular inspection and maintanance
Regular inspection and maintanance