10--3
118
T roubleshooting
SOLUTIONPROBABLE CAUSEPROBLEM
Cuts not orthogonal or inclined
' Head downstroke speed too
fast
.Reduce head downstroke
speed
' Widia inserts worn .Replace
' Inserts loose .Adjust width
' Blade guide head positioned
wrongly
.Move mobile head up to the
workpiece using the guide
plate to leave free only that
part of the blade actually
needed to make the cut
' Orthogonality of blade to
workpiece rest shoulder
.Check and realign the blade
guide heads, then reset the
blade orthogonality with the
shoulder using the adjust-
ment pin at 0˚; then set the
stops at 45˚ right and left by
means of the appropriate
screws
' Perpendicularity of the blade
to the work surface
.Check and realign the blade
guide heads then adjust the
blade using the appropriate
screws so that it is perpen-
dicular to the work surface
' Blade tension incorrect .Bring pressure up to 60 Bar
' Blade worn .Replace blade
' Tooth pitch unsuitable .Probably a blade with too
many teeth per inch is being
used; change for a coarser
blade
' Cutting speed too slow .Increase the cutting speed
' Wrong coolant .Check the water and oil
emulsion; check that none of
the holes or hoses are
blocked; direct the jets cor-
rectly
' Broken teeth .Check the hardness of the
material being cut
Broken teeth
' Cutting speed too high .Reduce cutting speed
' Downstroke speed too h igh .Reduce downstroke speed
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