The following are early diagnosis tables of common welding
abnormalities. Find the problem in the abnormality columns in the
upper right corner of the table. If there is a "0" under the problem,
please make a check and maintenance according to related items in the
table
.
Early diagnosis of welding abnormalities (1)
Abnormalities
Check parts and items
The
a
rc
ca
n’
t
b
e
st
ruc
k
No
ga
s f
lo
ws
out
No
wel
di
ng
wir
e g
oe
s
out
Poo
r
arc
sta
rti
ng
Uns
ta
ble
a
rc
Unc
le
an
ri
m
of
th
e w
el
ded
lin
es
Wel
di
ng
wi
re
stu
ck
to
t
he
bas
e
Wel
di
ng
wi
re
stu
ck
to
t
he
Gas
h
ole
s
are
pro
du
ced
Switch
cabinet
(input
protection
device)
1.
Is it
connected?
2.
Is the fuse
burned?
3.
Is the joint
loose?
O O
O
O O
O
Input
cable
1.
Is the cable
broken?
2.
Is the joint
loose?
3.
Is there
heating sign?
O
O O
O
Operation
of the
welding
power
source
1.
Is the switch
turned on?
2.
Is there a
phase-lacking
fault?
O O
O
O O
O
O
O
Gas
cylinder
and gas
adjuster
1.
Is the lid of
the cylinder
opened?
2.
Check the
remaining
quantity of
the gas
3.
Check the set
value of the
flow rate
4.
Is the joint is
loose?
O
O
Gas
supply
hose (the
full path
from the
high
pressure
gas
cylinder
to the
welding
gun)
1.
Is the joint
loose?
2.
Is the gas
hose
damaged?
O