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• Never allow anybody else other than the operator himself to dislocate or modulate the welding machine.
• Never allow the people with the cardiac pacemaker or any other things which are susceptible to the electromagnetism to get
close to the welding machine, which has interference with the pacemaker's normal function.
• The welder can not be used for pipeline ice-out.
• Never using the way of knocking the torch head to remove slag.
• The torch cable can not be pressed and its folding angle cannot be too small. The liner radius cannot less than 300mm, or it may
damage the inner cable and lead to accident.
• Never allow anybody else other than the operator himself to access the job site.
• No touching on the live parts such as output connector etc. when welding.
• The torch is an important part of the welder, it has direct influence on welding quality and it is relatively expensive. It can not be
put on the work pieces just finished welding in case of burning out.
• The inner and outer parts of the nozzle should be daubed with a little anti-MMA ointment to prevent splash and spatter MMAing
on the nozzle which is hard for clearance.
• The welder should be used within rated duty cycle. Over load using may accelerate the components aging and even lead to
burning out.
• The gas bottle should be fixed in case of toppling over.
• No touching on the live parts while turning on power. Input power must be cut off after finishing job or leaving the site temporarily.
2.3 safety precaution for installation and location
• Precaution must be taken to keep the operator and the machine from the foreign materials falling from up above.
• The dust, acid and erodible dirt in the air at the job site can not exceed the amount required by the norm (excluding the emission
from the welding process).
• The welder must be installed in the place where it can not be exposed to sun and rain. Also it must be stored in less humid place
with the temperature range at -10~4ºC.
• There should be 50 cm space about for the welding machine to have good ventilation.
• Make sure that there is no metal-like foreign body to enter the welding machine.
• No violent vibration in the welder's surrounding area.
• Make sure that there is no interference with the surrounding area at the installation site.
• Make sure whether there is enough power supply to make the welding machine work properly. Any power source required to
access the welder must be installed with some protective equipments.
• The welder should be installed on the horizontal surface and if it over 15°, there should be added some
anti-dump set.
• Take measures to prevent wind while operating in the strong wind since the welder is gas shielded. The wind speed is limited
below 1.0m/s, or the wind shield device must be loaded.
2.4 SAFETY check
Each item listed below must be carefully checked before operation:
• Make sure that the welding machine has reliable grounding wire connection.
• Make sure that there is no short circuit connection with welder's both outputs.
• Make sure that there is always sound output and input wire connection instead of exposing it outside.
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