recommended
Fault Tracking
122
the recommended routine maintenance intervals
Checking part
Checking item
Checking
method
Criterion
Ambient environment
Check the ambient
temperature, humidity and
vibration and ensure there
is no dust, gas, oil fog and
water drop.
Visual
examination
and instrument
test
Conforming to the
manual
Ensure there are no tools
or other foreign or
dangerous objects
Visual
examination
There are no
tools or
dangerous
objects.
Voltage
Ensure the main circuit
and control circuit are
normal.
Measurement by
millimeter
Conforming to the
manual
Keypad
Ensure the display is clear
enough
Visual
examination
The characters
are displayed
normally.
Ensure the characters are
displayed totally
Visual
examination
Conforming to the
manual
Main
circuit
For public use
Ensure the screws are
tightened up
Tighten up
NA
Ensure there is no
distortion, crackles,
damage or color-changing
caused by overheating
and aging to the machine
and insulator.
Visual
examination
NA
Ensure there is no dust
and dirtiness
Visual
examination
NA
Note:
If the color
of the copper
blocks change, it
does not mean
that there is
something wrong
with the features.
The lead of the
conductors
Ensure that there is no
distortion or
color-changing of the
conductors caused by
overheating.
Visual
examination
NA