FOR SAFE OPERATION -31-
SO-NL-B17E/O
1.
When soft jaws are used, they must be made of a softer material than the
workpiece. If they are harder, the workpiece could be distorted or scratched.
2.
Do not modify the chuck unnecessarily since this will adversely affect accuracy
and functions and reduce the chuck service life.
3.
When machining is carried out using a bar feeder or bar supporter, close the front
door while a workpiece is gripped in the chuck, set the spindle speed setting
switch to the lowest setting, rotate the spindle in manual operation, gradually
increase the spindle speed to the maximum speed used in the program, and
check if any vibration is generated, If there is any vibration, take the following
measures to eliminate it.
a.
If bar materials to be machined is bent to an extent that exceeds the
allowable range specified by the bar feeder manufacturer, correct the bend.
b.
Change the maximum spindle speed used in the program to a speed that
does not cause vibration of the machine body or the bar feeder.
c.
Adjust the alignment of the machine and bar feeder.
d.
Check that appropriate guide bushes are used in the spindle through-hole.
If the vibration cannot be eliminated by taking the measures listed above, contact
the bar feeder manufacturer or Mori Seiki. If machining is carried out under
vibration being generated, this will cause damage to the machine. It will also
seriously affect machining accuracy.
4.
Never subject the chuck, chuck jaws, or workpiece to shock by tapping them with
a hammer, etc., since this will adversely affect accuracy and functions and reduce
the chuck service life.
5.
When stopping the machine for a long time after switching the power off, always
remove the workpiece from a holding device. If the workpiece is left held in the
holding device after the power has been switched off, its weight will cause the
jaws of the chuck or fixture to open or the tailstock spindle or the tailstock body
(programmable tailstock specification) to retract if the workpiece is held using the
tailstock, and the workpiece will fall causing damage to the machine. Leaving the
workpiece in the holding device will give adverse affect to the life of the chuck
and the clamp mechanism of the tailstock.
6.
Choose the machining conditions with particular care when shaping soft jaws,
since this work involves intermittent machining. Inappropriate machining
conditions could cause damage to the cutting tool or cause machining defects.
CAUTION
