15
Daily checking of the cables
Items Checking requirements Remarks
Earth cable
Whether the grounding wires (including workpiece
GND wire and cutting machine GND wire) break off.
If unqualified,
tighten or replace
the components.
Cutting
cable
Whether the insulating layer of the cable is worn, or the
conductive part of the cable is exposed;
Whether the cable is drawn by an external force;
Whether the cable connected to the workpiece is well
connected.
Use appropriate
methods
according to the
work site
situation to
ensure safety
and normal
cutting.
5.2 Periodic check
WARNING
Periodic check should be carried out by qualified professionals to ensure safety.
The power of the switching box and the cutting machine should be shut down
before periodic check to avoid personal injury accidents such as electric shock and
burns. Due to the discharge of capacitors, checking should be carried out 5
minutes after the machine is powered off.
Tips:
Safety
All maintenance and checking should be carry out after the power is
completely cut off. Make sure the power plug of the machine is pulled
out before uncovering the cutting machine.
When the machine is powered on, keep hands, hair and tools away
from the moving parts such as the fan to avoid personal injury or
machine damage.
Periodic check
Check periodically whether inner circuit connection is in good
condition (esp. plugs). Tighten the loose connection. If there is
oxidization, remove it with sandpaper and then reconnect.
Check periodically whether the insulating layer of all cables is in good
condition. If there is any dilapidation, rewrap it or replace it.
Beware of static
In order to protect the semiconductor components and PCBs from the
static damage, please wear antistatic device or touch the metal part of
the enclosure to remove static in advance before contacting the
conductors and PCBs of the machine internal wiring.
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