User manual

Troubleshooting
- 48 - 01.10
Troubleshooting15
Fault Possible cause Rectication
Torch becomes too hot Contact tip not tightened properly check
Torch switch has no
function when actua-
ted
Union nut from torch hose pack
to central socket is not correctly
tightened
Tighten the union nut
Open circuit in control cable in the
torch hose pack
Check and replace if necessary
Thermal protection has triggered Allow the equipment to cool
down at no-load
Wire sticking or burnt
onto contact tip
Wire electrode jammed on the reel Check and replace if necessary
Burr at start of wire Trim the end of the wire
Wire feed irregular or
failed completely
Incorrect contact pressure on wire
feed unit
Set as described in the opera-
ting instructions
Torch faulty Check and replace if necessary
Guide tube in the central socket is
missing or dirty
Insert the guide tube or clean it
Welding wire reel badly wound Check and replace if necessary
Surface rust on wire electrode Check and replace if necessary
Torch internal coil clogged with
abrasion dust
Unscrew the torch from the
equipment, remove contact tip
from torch and blow out the coil
with compressed air
Torch internal coil exed Check and replace if necessary
Wire brake setting too hard Set as described in the opera-
ting instructions
Equipment switches
off
Duty cycle exceeded Allow the equipment to cool
down at no-load
Insufcient cooling of components Check air inlet and outlet on
the equipment
Arc or short circuit
between contact tip
and gas nozzle
A spatter bridge has formed bet-
ween the contact tip and the gas
nozzle
Remove using suitable special
pliers
Unstable arc Contact tip does not match the
wire diameter or contact tip is
worn
Check and replace if necessary