Vector Welding C-Series Operating Instructions Manual page 75

MIG SERIES EQUIPMENT
Troubleshooting
Nr. Troubles Reasons
The wire roller is wrong installed
The wire roller is twined
Pressure roller arm is fitted firmly
Turn on the power
The wire is not correctly through
source ,power
the inlet wire guide
7 indicator is lit,
gas flows, wire
The size of the groove ,wire and
roller cannot feed
torch tip are not from the same size
Control board is broken
Check the welding circuit is correct
Turn on the power
source ,power
The mig torch is not correctly
indicator is lit ,gas fitted to machine
8
flows, wire feeding,
no arc igniting Control board is broken
Gas cylinder is close or gas
pressure is low
Something is in the valve
9 No gas flow (TIG) Electromagnetic valve is damaged
Air tube is brocken
Pressure too high or air regulator is
broken
If the gas checking function is selected
10 Gas always flows
Something is in the valve
Electromagnetic valve is damaged
Checking if the wire checking
Without triggering
indicator is on
the mig torch but
the wire roller
11
Wire feeding board(for R251 and
feeding wire
R311) is broken or the control board
automatically
( for R221 and R231) is broken
Checking if the electorde stick to
the work piece that the anti-stick
The welding
function is on
current cannot
12
Control board is broken
be adjusted
Shut off the power when changing the torch
The welding The min value displayed isn't
current displayed
accordant with the actual value
13 isn't accordant
The max value displayed isn't
with the actual
value accordant with the actual value
The welding current is adjusted
too low
The penetration
The arc is too long in the welding
of molten pool is
14
process
not enough
The power cable or the welding
cable is too long
140
Solution
Check and change it
Check and sort it out
Check and connect correctly
Check and install correctly
Change to the same size of
the needed parts
Consult the dealer or the
manufacturer
Correct properly
Check and connect correctly
Consult the dealer or the
manufacturer
Open or change the gas cylinder
Remove it
Change it
Change it
Check gas
Close it
Remove it
Change it
Close the wire checking function
Consult the dealer or the
manufacturer
Separate the electrode and
work piece
Repair or change it
Adjust potentiometer Imin on
the control board
Adjust potentiometer Imax on
the control board
Increase the welding current
Adjust the distance from torch
to work piece
Use the suitable length from
manufacturer
WELDING TECHNIQUE AND MAINTENANCE
Nr. Troubles Reasons
Over-heat protection ,too much
welding current
Over-heat protection ,working too
much time
Thermal overload
15
indicator light is on Over-current protection, current in
the main circuit is out of control
Input voltage is too low
Fan is broken
Tig electrode melts
Tig torch is connected to the
when welding (for
16
positive terminal
R231)
Tungsten electrode is too big for
the welding current
Arc flutters during
17
Tig welding
Check the earth clamp position
on the work piece
Troubleshooting
Solution
Reduce the welding current
Reduce the welding time
Check and repair main circuit
and drive board
Check the power supply
Change the fan
Connect the tig torch to
negative terminal
Select the correct size of
tungsten electrode
Adjust the position of earth
clamp
141