10
−
4
124
Use and maintenance manual DM-1215
SOLUTION
PROBABLE CAUSE
PROBLEM
Broken teeth
Cutting pressure too high
Check and set to correct
pressure
Tooth pitch unsuitable
Teeth too close together:
change blade for one with a
coarser tooth pitch
Swarf welded to teeth and
gullets
Check blade
−
cleaning
coolant jets. Check the
blade
−
cleaning brush. If the
swarf is not removed from
the blade it will be drawn
back into the cut and weld to
the teeth, causing tooth
breakage
Swarf welded to teeth and
gullets
Check blade
−
cleaning fluid
jets. Check blade
−
cleaning
brush. If the swarf is not re-
moved from the blade it will
be drawn back into the cut
and weld to the teeth, caus-
ing the teeth to break.
Material defects
The material may have al-
tered surface areas, such as
oxides or sand, or subcooled
inclusions in the section.
These areas are much hard-
er than the blade and will
cause the teeth to break:
scrap or clean these materi-
als.
Workpiece not clamped
The blade may break if the
workpiece moves during cut-
ting: check the vice, jaws and
clamping pressure
The blade stops in the cut
Cutting pressure too high:
check and restore to rated
pressure. Downstroke speed
too fast: reduce speed. Cut-
ting speed too slow: in-
crease. The blade slips on
the flywheels: either the
wheels are worn and need to
be replaced or the blade ten-
sion is incorrect (too low) and
must be re
−
adjusted.
New blade inserted in a par-
tially made cut
The cutting surface may
have been subjected to a lo-
calised heat
−
induced alter-
ation, making it harder:
recommence cut using a
slower cutting and down-
stroke speed. A tooth from
the old blade may be left in
the cut: check and remove
before restarting work.
Summary of Contents for DM-1215
Page 1: ...USE AND MAINTENANCE MANUAL YEAR OF MANUFACTURE ______________ DM 1215 EN ...
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Page 53: ...6 7 52 Diagrams exploded views and replace Standardised Wiring Diagrams ...
Page 54: ...6 8 53 Use and maintenance manual DM 1215 ...
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Page 56: ...6 10 55 Use and maintenance manual DM 1215 F6 F7 F8 F3 F4 F5 RT4 ...
Page 57: ...6 11 56 Diagrams exploded views and replace F1 F2 F9 ...
Page 58: ...6 12 57 Use and maintenance manual DM 1215 S4 KSTO S8 S4 K01 ...
Page 59: ...6 13 58 Diagrams exploded views and replace KSTO KSTO RT4 ...
Page 61: ...6 15 60 Diagrams exploded views and replace ...
Page 62: ...6 16 61 Use and maintenance manual DM 1215 ...
Page 63: ...6 17 62 Diagrams exploded views and replace ...
Page 64: ...6 18 63 Use and maintenance manual DM 1215 ...
Page 65: ...6 19 64 Diagrams exploded views and replace ...
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Page 69: ...6 23 68 Diagrams exploded views and replace ...
Page 70: ...6 24 69 Use and maintenance manual DM 1215 ...
Page 71: ...6 25 70 Front flywheel assembly ...
Page 74: ...6 28 73 Use and maintenance manual DM 1215 Motor flywheel assembly ...
Page 77: ...6 31 76 Cutting head cover ...
Page 79: ...6 33 78 Vice assembly ...
Page 81: ...6 35 80 Base assembly ...
Page 83: ...6 37 82 Control panel ...
Page 85: ...6 39 84 Fixed work table and turntable ...
Page 88: ...6 42 87 Use and maintenance manual DM 1215 Cylinder unit ...
Page 90: ...6 44 89 Use and maintenance manual DM 1215 Laser and lamp group ...
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