22
DAILY CHECKING
WELDING POWER SUPPLY
Position Check points Remarks
Control panel
1. Condition of operation, transfer and installation of
switches
2. Check the power indicator
-
Cooling fan 1. Check if there is wind and if the sound is normal
If abnormal noise
and no wind, check
theinsideofthefan
Electrical
components
1. When power on, abnormal smell
2. When power on, abnormal vibration or buzzing
3. Color changing and heating in appearance
-
Peripheral
components
1. Gas pipe is broken or loose
2. Housing and other fixed parts loose
-
WELDING TORCH
Position Check points Remarks
Nozzle
Adequate mounting. Presence of
distortion
Reason for air leaks
Presence of splashes
Reason for burns in the torch
(can use spatter-proof material)
Electric hole
Adequate mounting
Reason for torch screw thread
damage
Damage of its head and hole blocked Reason for unstable and irregular arc
Wire guide
tube
Check the extended size of the tube
Change when less than 6mm, when
the extended part too small, to
ensure arc stability
Wire diameter matches tube inner
diameter
Reason for unstable arc, please use
thesuitabletubediameter
Partial bending and extended
Reason of poor wires guiding and
unstable arc, please change
Blockage caused by dirt or residue in
the tube
Reason of poor wire guiding and
unstable arc, (use kerosene to wipe
or change tube)
Wire guide tube broken
Pyrocondensation tube broken,
change tube
Gas bypass Poor connection or blockage of the hole
May cause spatter due to improper
gas shield, unstable arc or burns to
the torch body
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