40
EN
TROUBLESHOOTING
Bad surface finish.
1. Wrong spindle speed
or feed rate.
2. Dull tooling or wrong
tool selection.
3. Tool height not at
spindle centerline.
4. Too much play in gibs.
1. Adjust for appropriate spindle speed
and feed rate.
2. Sharpen tooling or select a better tool
for the intended operation.
3. Adjust tool height to spindle centerline.
4. Tighten gibs.
Tapered tool
difficult to remove
from tailstock
quill.
1. Quill not fully retracted
into tailstock.
2. Contaminants
not
removed from taper
before inserting into
quill.
1. Turn quill handwheel until tapered tool
is forced out of quill.
2. Clean taper and bore, then re-install
tool.
Cross slide, top
slide, or carriage
feed has sloppy
operation.
1. Ways loaded with
shavings, dust, or
grime.
2. Gibs are out of
adjustment.
3. Handwheel loose or
excessive backlash.
4. L e a d s c r e w
mechanism worn or
out of adjustment.
1. Clean ways and lubricate them.
2. Adjust gibs.
3. Tighten handwheel fasteners, adjust
handwheel backlash to a minimum.
4. Adjust leadscrew to remove end play.
Cross slide, top
slide, or carriage
handwheel is hard
to move.
1. Ways loaded with
chips, dust, or grime.
2. Gibs are too tight.
3. Backlash setting too
tight.
4. Bedways are dry.
5. Half
nut
lever
engaged.
1. Clean ways and lubricate them.
2. Loosen gibs slightly.
3. Slightly loosen backlash setting.
4. Lubricate bedways.
5. Disengage half nut lever for manual
feeding.
Cutting tool
or machine
components
vibrate
excessively during
cutting.
1. Tool holder not tight
enough.
2. Cutting tool sticks too
far out of tool holder;
lack of support.
3. Gibs are out of
adjustment.
4. Dull cutting tool.
5. Incorrect
spindle
speed or feed rate.
1. Check for debris, clean, and retighten.
2. Re-install cutting tool so no more than
1/3 of the total length is sticking out of
tool holder.
3. Adjust gibs at aff ected component.
4. Replace or resharpen cutting tool.
5. Use the recommended spindle speed
and feed rate.
Workpiece is
tapered.
Headstock and tailstock
not properly aligned.
1. Re-align tailstock to headstock spindle
centerline.
Chuck jaws will
not move or do
not move easily.
Chips lodged in jaws or
scroll plate.
1. Remove jaws, clean and lubricate scroll
plate, then replace jaws.
Summary of Contents for JOB LINE DIGITO ML 350
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Page 22: ...22 325 mm 760 mm 315 mm 2 1 20 Kg 3...
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Page 58: ...58 Ingombro per etichetta FAC SIMILE Ingombro per etichetta FAC SIMILE...
