Troubleshooting - LORCH S Pulse XT Manual De Instrucciones

Troubleshooting

18 Troubleshooting
Fault
Torch becomes too hot
Torch switch has no function when actuated Union nut from torch hose pack to central
Wire sticking or burnt onto contact tip
Wire feed irregular or failed completely
Equipment switches off
Cooler or hoses burst or pump is damaged.
Arc or short circuit between contact tip and
gas nozzle
Unstable arc
Control panel is completely dark
Inert gas missing
Inert gas does not switch off
Inert gas feed insufficient
01.21
Possible cause
The torch is clogged by dirt in the coolant
system
Contact tip not tightened properly
socket is not correctly tightened
Open circuit in the torch hose package con-
trol cable
Thermal protection has triggered
Wire electrode jammed on the reel
Burr at start of wire
Incorrect contact pressure on wire feed unit
Torch faulty
Guide tube in the central socket is missing
or dirty
Welding wire coil badly wound
Surface rust on wire electrode
Torch internal coil clogged with wire abra-
sion dust
Torch internal coil kinked
Wire brake setting too hard
Duty cycle exceeded
Insufficient cooling of components
Coolant system has frozen up due to lack of
antifreeze
A spatter bridge has formed between the
contact tip and the gas nozzle
Contact tip does not match the wire diam-
eter or contact tip is worn
Phase missing
Gas cylinder empty
Torch faulty
Pressure reducer dirty or faulty
Gas cylinder valve faulty
Gas valve dirty or sticking
Inert gas quantity set incorrectly at the pres-
sure reducer
Pressure reducer dirty
Torch or gas hose blocked or leaking
Inert gas blown away by draughts
909.2599.9-06
Rectification
Flush the torch with coolant hoses out in the
opposite flow direction
Check
Tighten the union nut
Check and replace if necessary
Allow the equipment to cool down in idle
Check and replace if necessary
Trim the end of the wire
Set as described in the operating instruc-
tions
Check and replace if necessary
Insert the guide tube or clean it
Check and replace if necessary
Check and replace if necessary
Unscrew the torch from the equipment,
remove contact tip from torch and blow out
the coil with compressed air
Check and replace if necessary
Set as described in the operating instruc-
tions
Allow the equipment to cool down in idle
Check air inlet and outlet on the equipment
Contact Service Department
Remove using suitable special pliers
Check and replace if necessary
Check the equipment on a different power
socket. Check the supply cable and mains
fuse
Replace
Check and replace if necessary
Check and replace if necessary
Replace gas cylinder
Remove torch and pressure reducer, blow
out the gas valve in the opposite flow direc-
tion with compressed air
Set the inert gas quantity as described in the
operating instructions
Check the pressure reducing nozzle
Check and replace if necessary
Eliminate the draughts
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