- 19 -
hfb6d1ea
6 FAULT TRACING
'( 9 8:1
0460 948 xxx, 0460 949 xxx, 0459 839 036
%# 781
0443 393 xxx
" )
3 . 4
POSSIBLE FAULTS
!* (+ Current and voltage readings show large fluctuations
" , !*! Contact jaws or nozzle are worn or wrong size.
+ Replace contact jaws or nozzle.
" , !* Feed roller pressure is too low.
+ Increase pressure on feed rollers.
* (+ Wire feed is irregular
" , *! Feed roller pressure not correct.
+ Change the feed roller pressure.
" , * Feed rollers wrong size.
+ Replace feed rollers.
" , *% Grooves in feed rollers are worn.
+ Replace feed rollers.
%* (+ Welding cables overheating
" , %*! Poor electrical connection.
+ Clean and tighten all electrical connections.
" , %* Cross-section of welding cables too small.
+ Use cables with a larger cross-section or use parallel cables.
GB