Hyd-Mech DM-1215, Use And Maintenance Manual

Page: 125 / 136

10 − 3 123 Troubleshooting
SOLUTION PROBABLE CAUSE PROBLEM
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 high Reduce downstroke speed