Troubleshooting And Fault Finding - Linde BOC RAPTOR 160 MIG Operating Manual

8.0 Troubleshooting and Fault Finding

Problem
1
Press the torch trigger, no wire
feed
2 Gas flow out of the torch, no
power and no wire feed
3
Gas flows out of the torch, wire
feeds, no arc
4 Welding current imbalance
5 No-load voltage is low
6 Unstable arc and spatter
7 Load voltage, wire feed normal,
but not arc
8 No shielding gas flow
9
Wire tangles at the wire feeder
Possible Cause
No power
Torch switch is faulty
Wire feeder current regulator
potentiometer faulty
Wire feeder fault
Wire feed pcb faulty
The main control board is faulty
Poor contact of internal
connectors
Current adjustment potentiometer
bad
Control circuit board has a
problem
Power supply voltage is too low
Inappropriate selection of voltage
and wire feed speed
Contact tip size, wire feeder roll
size and/or wire diameter do not
match
Excessive wire feed resistance
Break in the welding circuit
Excessive oil or rust on the job
Check if the gas hose is
connected and free of kinks
Check whether the gas cylinder
has gas
Internal solenoid valve has failed
Wire burnt back into the contact
tip
Contact is clogged or the
incorrect size
Torch Liner/guide tube is clogged Replace
Wire feed roll misaligned
Wire feeder roll pressure
excessive
Solution
Check input power connection.
Replace the torch
Contact authorised service agent
Contact authorised service agent
Contact authorised service agent
Contact authorised service agent
Contact authorised service agent,
repair connectors
Contact authorised service agent
Contact authorised service agent
Change input power supply
Consult operating manual to
change settings
Fit appropriate matched sizes of
tip and wire feed rolls to match
wire diameter
Clean or replace the torch wire
guide tube/liner.
Check the work return lead is
properly connected.
Clean the job to ensure good
electrical conductivity.
Correct as required
Exchange as required
Contact authorised service agent
to replace the gas solenoid.
Replace the contact tip and
check/adjust machine settings
replace the contact tip and
check/adjust machine settings
Adjust
Adjust
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