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Table 4-1: Daily checking of the welding machine
Items Checking requirements Remarks
Front panel
Whether any of the components are
damaged or loosely connected;
Whether the output quick sockets are
tightened;
Whether the abnormity indicator illuminates.
If unqualified, check the
interior of the machine,
and tighten or replace the
components.
Back panel
Whether the input power cable and buckle
are in good condition;
Whether the air intake is unobstructed.
Cover Whether the bolts are loosely connected.
If unqualified, tighten or
replace the components.
Chassis Whether the screws are loosely connected.
Routine
Whether the machine enclosure has color
fading or overheating problems;
Whether the fan sounds normal when the
machine is running;
Whether there is abnormal smell, abnormal
vibration or noise when the machine is
running.
If abnormal, check the
interior of the machine.
Cleaning the
Feed Rolls
Clean the grooves in the drive rolls frequently.This can be done by using
a small wire brush.Also wipe off, or clean the grooves on the upper feed
roll. After cleaning,tighten the feed roll retaining knobs.
Table 4-2: Daily checking of the cables
Items Checking requirements Remarks
Earth cable
Whether the grounding wires (including
workpiece Earth wire and welding machine
earth wire) break off.
If unqualified, tighten or
replace the components.
Welding
cable\ MIG
gun
Whether the insulating layer of the cable is
worn, or the conductive part of the cable is
exposed;
Whether the cable is drawn by an external
force;
Whether the cable connected to the
workpiece is well connected.
Use appropriate methods
according to the work site
situation to ensure safety
and normal cutting.
5.3 Periodic Check
Periodic check should be carried out by qualified professionals to ensure safety. The power
of the switching box and the welding machine should be shut down before periodic check to
avoid personal injury accidents such as electric shock and burns. Due to the discharge of
capacitors, checking should be carried out 5 minutes after the machine is powered off.
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