Jasic MIG 350P, Руководство оператора

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OPERATOR’S MANUAL · MIG/MAG PULSE SERIES
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7.
CAUTIONS AND MAINTENANCE
7.1 Cautions
1) Lifting method of the welding machine: Please lift this welding machine with a forklift or a crane,
and pay special attention to the fixing of the machine when lifting it with a crane for no lifting
rings are assembled for this welding machine.
2) Specification of the input cable: Connect the switching box to the welding machine with a cable
of 4*4mm
2
, and the switching box should be equipped with a circuit breaker or fuse of 60A or more.
3) Connection of the grounding wire: Make sure that the yellow/green wire of the input cable of the
welding machine is connected to the protective ground in the welding area when operating.
4) Cooling mode of the welding machine: This machine adopts air-cooling mode, so there should be no
obstructions at the air inlet and outlet of the welding machine so as to ensure good ventilation.
5) Ingress protection of the welding machine: The ingress protection of this machine is IP21S, and
it is not suitable to use in the rain. In addition, try to avoid placing the machine in damp
environment.
6) Duty cycle of the welding machine: The rated duty cycle of this machine is 60%. Overheating
protection is available for this machine, and the machine would cut off output automatically when
overheating protection occurs.
7) Inclination of the welding source: The inclination of the welding source should not be greater
than 15
°, or it would tip over.
8) Operating environment of the welding machine: The environment should meet the below requirements:
a) Ambient temperature range: -10
℃
~
+40 ℃ during welding; -25℃
~
+55℃ during transport and
storage.
Note: When using a water cooler, please avoid using or storing it under the solidification
temperature of the coolant. Empty the coolant firstly if you want to store it under a low temperature.
b) Relative humidity of the air: not greater than 50% at 40
℃; not greater than 90% at 20℃.
c) Dust, acid or corrosive gas or materials in the ambient air should not exceed the standard content,
except for such materials produced in the process of welding.
9) Never use this welding source for pipe thawing.
10) Do not expose the welding machine in the sunlight for a long time, and try to avoid using the welding
machine in strong sunlight.
11) Keep hands, hair and tools away from the moving parts such as the fan to avoid personal injury
or machine damage.
12) Avoid rain, water and vapor infiltrating the machine. If there is, dry it and check the insulation
of the equipment (including that between the connections and that between the connection and the
enclosure). Only when there are no abnormal phenomena anymore, the machine can be used.
13) The welding machine and welding torch has its rated duty cycle respectively. Use them according
to their duty cycle, and overloading running is not allowed.
14) Use appropriate welding cable: If the cable is overly thin, the current would be insufficient,
the arc stability would be poor, rated output power could not be obtained, and the cable could
be easily burned.
15) Correct connection is a precondition to ensure good welding effect, so make sure that the output
terminals of the welding machine are connected correctly.
16) Using water-cooling torch: In order to prevent the welding torch against being burned, the water
pressure of the cooling water should be 1
~
2kg/cm
3
.Even though the current is low, water-cooling
should be used as long as water-cooling torch is used.
17) Unobstructed gas hose and water hose: If the hose is pressed by heavy things or the hose is bended,
water or gas would stop flowing. Thus, the welding torch would be burned or welding defects would
be produced.
18) Take good care of the welding torch: Careless operation of the welding torch would lead to wire
breaking, water or gas leakage and nozzle damage easily.
19) Unreliable connection of the gas regulator or gas hose would lead to gas leakage or gas flow reducing
at the nozzle front, consequently, gas protection effect would be weakened, and air holes in the
weld bead would be caused. Check with suds whether there is gas leakage.