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the machine work and fan inside will make the machine cooling . The machine work again after the
indicator turn off.
7. MAINTENANCE
WARNING: All maintenance, repair work must be completely cut off the power,
make sure the machine is unplugged in to the power before opening the case.
1. Blow the dust with dry air regularly. Operator need remove the dust very day if welding in dense
smoke and serious polluted air.
2.The air flow should be in reasonable pressure ,too strong flow will destroy some small compo-
nents.
3. Avoid water or steam into the machine.Operator needs to dry the machine when this situation
happed.Then to measure the insulation with an ohmmeter. Ensure everything is OK , then start to
welding.
4. Packing up the machine to relatively dry environment if not using frequently.
Overhaul precautions
WARNING: Blind experiments and imprudent overhaul may lead to the expansion of the area
of the fault,cause difficulties to the formal overhaul. The equipment in an energized state
machine within the exposed part with can lead to dangerous voltage, any direct or indirect
contact may lead to electric shock accidents, serious electrical shock will result in death! ! !
Note: During the warranty period, the user repairs without authorization or error repair, the free
repair warranty provided by the suppliers will be invalidated.
8. TROUBLE SHOOTING
The phenomenon you meet here may have connections with spare parts, welding materials,environ-
ment and supply power ,please take measures to avoid those things.
A. Hard to start arc , easy to break arc：
1. Make sure the welding electrode good quality.
2. The electrode without dealing with drying process may cause arc unstable ,bad
welding quality .
3. The output voltage will decrease when using longer output cables.It's suggested
using shorter output cables.
B. Output current can not meet the rated value：
Unrated power supply will cause output value not match the rated value data.
C. The current not stable during welding process.
This situation may caused by the following:
1. The supply voltage not stable.
2. Disturbed by the supply voltage
D. More sparks：
1. Using small electrode with high current adjusted .
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