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SECTION 4- MAINTENANCE & BASIC TROUBLESHOOTING
MAINTENANCE
Please disconnect power to machine before performing maintenance.
•
Check periodically whether cable connection is in good condition (esp. plugs). Tighten any loose connections. If
there is oxidization, remove it with sandpaper and then reconnect.
•
Clean the dust inside the machine periodically with dry and clean compressed air. If welding environment has
heavy smoke and pollution, machine should be cleaned daily. The pressure of the compressed air should be at a
low pressure in order to avoid the small parts inside the machine being damaged.
•
Avoid water and vapor entering the machine. If this occurs, dry machine internals and check the insulation of
the equipment (including that between the connections and that between the connection and the enclosure).
Only when there is no moisture present, can the machine be used.
•
Check all cables periodically, to be sure they are in good condition with no worn spots or cracks in outer
insulation. If there is any dilapidation, rewrap it or replace all damaged cables.
•
Put the machine into clean packing and in a dry location if it is not to be used for an extended period of time.
•
If machine is in an environment that is in or near chemicals, cover machine when not in use.
•
Check gas hose periodically, to ensure it is in good condition and has no cracks, if any damage/wear is visible
replace hose.
BASIC TROUBLESHOOTING
S/N
Troubles
Reasons
Solution
1
Turn on the power source, and
fan works, but the power pilot
lamp is not on.
The power light damaged or connection is
not good
Check and repair Pr7
The transformer of power is broken
Repair or change the transformer
Control PCB failures
Repair or change the control Pr4
2
Turn on the power source, and
the power lamp is on, but fan
doesn
’
t work
There is something in the fan
Clear out
The start capacitor of fan damaged
Change capacitor
The fan motor damaged
Change fan
3
Turn on the power source, the
power lamp is not on, and fan
doesn
’
t work
No power supply input
Check whether there is power supply
The fuse inside the machine damaged
Change it (3A)
4
The number on the display is
not intact.
The LED in the display is broken
Change the LED
5
The max value is not accordant (refer to
§3.1)
Adjust potentiometer Imin on the
power board.
Содержание PLB2380148
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