Trouble-Shooting - Jackle maxiMIG 250 Betriebsanleitung

19. Trouble-shooting

Any remedial action to defective electrical equipment must be carried out
by a qualified electrician!
Malfunction/error
mains connected and master
switch in pos.´ON´/
mains control is not lit
master switch in pos.´ON´/
fan out of service
no function after pressing
torch key-button (no
tripping of contactor)
wire feed motor out of
service
wire buckling between
wire feed rollers and
guide tube
Irregular wire feed
Operating manual
Cause
loss of supply voltage
F1 fuse at aux. transformer
defective
mains control lamp
defective
fan runs only in case of
excessive current source
temperature
torch key-button
defective
torch control line
interrupted
control board defective
temperature fault indi-
cator is lit
control board defective
excessive contact
pressure of wire feed
rollers
distance from wire feed
rollers to guide tube too
far
bad uncoiling of wire
wire-holding arbor
runs heavily
wrong wire feed roller
dirty / defective
wire guide tube or spiral
clogged / defective
current contact tip
dirty/ rusty
welding wire
wire guide tube misaligned
with wire feed roller groove
maxiMIG 250/300
Remedy
check mains fuse,
check mains cable
exchange F1 fuse
(T 0,5 A / 250 V)
check/exchange
main switch
see chapter 14
brief description
check torch key-button
check torch control line
check/exchange control
board
see chapter 14
control elements
check/exchange
control board
see chapter 15
wire feed
check distance /
realign wire guide
tube.
check / refit wire coil
check wire-
holding arbor
see chapter 15
wire feed
see chapter 15
wire feed
clean / exchange
current contact tip
exchange
welding wire
see chapter 15
wire feed
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