MachineryHouse C6246, Instruction Manual

Page: 39 / 89

42
TROUBLE PROBABLE CAUSES REMEDY
Chatter 18.Clamp of work piece in
from loose status.
19.Spindle bearing thrust too
loose.
20.Headstock is not tight with
bedway.
21.Excess clearance between
carriage and bedway.
22. Excess clearance in cross
or compound slide.
23.Cutting angle of cutting
tool is not correct.
24.Edge of cutting tool has
been worn-out.
25.Weak of tool shank and too
long for extension.
26.Tool fixed to holder not
tight enough.
27. Unbalances of workpiece
or chuck when high speed
revolution.
28.Front point of cutting tool
not in correct position.
Tighten clamp.
Adjust bearing thrust.
Tighten headstock screw.
Adjust carriage back clamp.
Adjust taper gib.
Regrind tools to correct cutting
angles.
Regrind cutting tool.
Replace with rigid tools or reset the
tools.
Tighten tool again.
Balance or reduce spindle speed
revolution.
Reset cutting tool.
Bending, when long
workpiece cutting 29.Feed valve too large.
30.Workpiece too thin or too
long. Reduce feed valve size.
Use following rest and adjust position
of tool.
Accuracy of
product fails 31.Accuracy fails in
machining. Check the accuracy of correlation
between products and machine (ref.
Accuracy chart.)
Uneasy to hold gear
change lever. 32.Set spring broken or too
weak. Adjust adjusting screw or replace the
spring.
Page 39 Instructions Manual for CL-60A (L604) 07/09/2017