Owner`s manual

２５
Chatter
18.Clamp of workpiece in
from loose status.
Tighten clamp.
19.Spindle bearing thrust too
loose.
Adjust bearing thrust.
20.Headstock is not tight
with bedway.
Tighten headstock
screw.
21.Excess clearance between
carriage
Adjust carriage back
clamp.
22.Excess clearance in cross
or compound slide.
Adjust carriage back
clamp.
23.Cutting angle of cutting
tool is not correct.
Regrind tools to cutting
angles.
24.Edge of cutting tool has
been worn-out.
Regrind cutting tool.
25.Weak of tool shank and
too long for extension.
Replace with rigid tools
or reset the tools.
26.Tool fixed to holder not
tight enough.
Tighten tool again.
27.Unbalances of workpiece
or chuck when high speed
revolution.
Balance or reduce
spindle speed
revolution.
28.Front point of cutting tool
not in correct position.
Reset cutting tool.
Bending when
long workpiece
cutting
29.Feed value too large.
Reduce feed value size.
30.Workpiece too thin or too
long.
Use follow rest and
adjust position of tool.
Accuracy of
product fails.
31.Accuracy fails in
machining.
Check the accuracy of
correlation between
products and machine.
Uneasy to hold
gear change
lever.
32.Set spring broken or too
weak.
Adjust adjusting screw
or replace the spring.