FAULTS
LEISTER WELDMAX Handextruder
Operating faults and preventative measures
• Welding rod obstruction
– Should the welding rod outside the tool get obstructed, the rod feed will skid to
prevent tool damage.
– Safeguard the welding rod feed, check welding rod tolerance.
– Start up the tool using the
rod feed switch (14)
.
– Push-feed the welding rod only by hand into the
welding rod feed (15)
.
– Welding rod residue will escape via the
discharge aperture (16)
.
–
CAUTION
do not use any tools or other objects to remove welding rod residue.
• In case the welding rod cannot be fed through, the welding rod can be removed
backwards out of the tool.
– Switch off the rod feed by the
rod feed switch (14)
.
– Set the
potentiometer air temperature (22)
and
potentiometer extrudate tem-
perature (19)
to the set value OFF position.
– After approx. 2 seconds activate the
rod feed switch (14)
, the machine will start
in reverse (fixed speed).
– The welding rod can be removed by pulling on the protruding welding rod.
– Switch off the rod feed by pressing the
rod feed switch (14)
.
– Set the
potentiometer air temperature (22)
and
potentiometer extrudate tem-
perature (19)
to adjust SET value.
– Feed new welding rod and press
rod feed switch (14)
.
Caution: cut off the used welding rod.
– Feed in the new rod by using a low rod feed speed.
– As soon as the plastizised material starts to protrude from the
welding shoe (1)
,
the tool will be operational again.
•
Fault indication on the digital display
– Should a fault occur during the operation of the tool , this will be indicated on the
display.
– Send the tool to the nearest Service Centre, indicating the fault code.
6
ERR
will appear on the
Digital display ACTUAL value extrudate temperature (17)
and
Digital display ACTUAL value air temperature (20)
The following messages will appear on the
Digital display SET value air
temperature (21)
LO
No fault in the automatic air control.
L1
Interruption of the temperature probe or air temperature too high
L2
Faulty air heater or the air temperature probe has a short circuit
L3
Element overheated, photoresistor has responded
L6
Electronics over-heated.
The following messages will appear on the
digital display SET value
extrudate temperature (18)
PO
No fault in the automatic extrudate unit
P1
Interruption of temperature probe or extrudate heater over-heated
P2
Faulty extrudate heater or the temperature probe of the
extrudate heater has a short circuit
