8
The following operation requires sufficient professional
knowledge on electric aspect and comprehensive safety
knowledge. Operators should be holders of valid qualification
certificates which can prove their skills and knowledge. Make
sure the input cable of the machine is cut off from the electricity
utility before uncovering the welding machine.
(1)
Check
periodically
whether
inner
circuit
connection is ok (esp. plugs). Tighten the loose connection. If
there is oxidization, remove it with sandpaper and then
reconnect.
(2) Keep hands, hair and tools away from the moving
parts such as the fan to avoid personal injury or machine
damage.
(3) Clean the dust periodically with dry and clean
compressed air. If welding in environment with heavy smoke
and pollution, the machine should be cleaned daily. The
pressure of compressed air should be at a proper lever lest the
small parts inside the machine be damaged.
(4) Avoid rain, water and vapor infilter the machine. If
there is, dry it and check the insulation with a megger (including
that between the connections and that between the connection
and the case). Only when there is no abnormal phenomena can
welding be continued.
(5) Check periodically whether the insulation skin of all
cables are perfect. If there is any dilapidation, wrap it or replace
it.
(6) Put the machine into the original packing in dry
location if it is not to be used for a long time.
The following operation requires sufficient professional
knowledge on electric aspect and comprehensive safety
knowledge. Operators should be holders of valid qualification
certificates which can prove their skills and knowledge. Make
sure the input cable of the machine is cut off from the electricity
utility before uncovering the welding machine.
(1)
Check
periodically
whether
inner
circuit
connection is ok (esp. plugs). Tighten the loose connection. If
there is oxidization, remove it with sandpaper and then
reconnect.
(2) Keep hands, hair and tools away from the moving
table. This machine is of automatic voltage compensation, which enables the maintaining of the
voltage range within the given range. In case that the input voltage exceeds the stipulated value, it
would possibly damage the components of the machine.
2.4 A sudden halt may occur while the machine is of overload status. Under this circumstance,
it is unnecessary to restart the machine. Remain the built-in fan working to lower the temperature
inside the machine.
8. MAINTENANCE
(1) 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.
(2) Keep hands, hair and tools away from the moving parts such as the fan to avoid personal
injury or machine damage.
(3) Clean the dust periodically with dry and clean compressed air. If welding environment
with heavy smoke and pollution, the machine should be cleaned daily. The pressure of
compressed air should be at a proper level in order to avoid the small parts inside the
machine to be damaged.
(4) Avoid rain, water and vapor infilter the machine. If there is, dry it and check the insulation
with equipment (including that between the connections and that between the connection
and the enclosure). Only when there are no abnormal phenomena anymore, then the
machine can be used.
(5) Check periodically whether the insulation cover of all cables is in good condition. If there
is any dilapidation, rewrap it or replace it.
(6) Put the machine into the original packing in dry location if it is not to be used for a long
time.
9. TROUBLESHOOTING
Common Malfunction Analysis and Solution:
Malfunction Phenomena
Cause and Solution
Turn on the machine, the power LED is off, (1) Check if the power switch is closed.
