Hafco BM-23A, Руководство по эксплуатации

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28
OPERATION MANUAL
Symptom Possible Cause Possible Solution
Tool loose in
spindle.
1. Tool is not fully drawn up into spindle taper.
2. Debris on tool or in spindle taper
3. Taking too big of a cut.
1. Spindle speed/feed rate is too fast.
2. Cutting tool is too small.
3. Cutting tool getting too hot.
4. Taking too big of a cut.
5. Spindle extended too far down.
1. Table locks not tight.
2. Workpiece not secure.
3. Spindle speed/feed rate is too fast.
4. Spindle extended too far down
.
5. Quill lock lever not tight.
6. Gibs too loose in table.
1. Table locks are tightened down.
2. Chips have loaded up on ways.
3. Ways are dry and need lubrication.
4. Table limit stops are interfering.
5. Gibs are too tight.
1. Headstock lock(s) or gib is at fault.
2. Headstock leadscrew is binding.
3. Gib is too tight.
1. Spindle speed/feed rate is too fast.
2. Dull or incorrect cutting tool.
3. Wrong rotation of cutting tool
4. Workpiece not secure.
5. Spindle extended too far down.
1. Table and spindle are not at 90° to each other.
2. Table travel is inconsistent
1. Poor spindle bearing lubrication.
2. Spindle bearings too tight.
3. Mill operated at high speeds for extended
period.
1. Belts are loose.
2. Wrong voltage
1. Tighten drawbar.
2. Clean tool and spindle taper.
3. Lessen depth of cut and allow chips to clear.
1. Set spindle speed correctly or use slower feed rate
2. Use larger cutting tool and slower feed rate.
3. Use coolant or oil for appropriate application.
4. Lessen depth of cut and allow chips to clear.
5. Fully retract spindle and raise table. This increases
rigidity.
1. Tighten table locks (Page 10).
2. Properly clamp workpiece on table or in vise.
3. Set spindle speed correctly or use slower feed rate
(Page 15,16).
4. Fully retract spindle and raise table This increases
```rigidity.
5. Tighten quill lock lever (Page 8.9).
6. Tighten gibs (Page 26.
1. Fully release table locks (Page 10).
2. Frequently clean away chips or debris.
3. Lubricate ways (Page 25).
4. Make sure that table limit stops are not in the way
5. Adjust gibs (Page 26).
1. Loosen/replace lock lever and adjust gib (
2. Clean and relubricate headstock leadscrew and
gears
3. Adjust gib (Page 26).
1. Set spindle speed correctly or use slower feed rate
(Page 16).
2. Sharpen cutting tool or select one that better suits
the operation.
3. Check for proper cutting tool rotation.
4. Properly clamp workpiece on table or in vise.
5. Fully retract spindle and raise table. This increases
rigidity.
1. Square the spindle (Page 23).
2. Adjust gibs (Page 26).
1. Replace spindle bearings.
2. Properly adjust spindle bearing preload.
3. Allow mill to cool.
1. Properly tension belts.
2. Correct voltage.
Workpiece or tool
vibrates or chatters
during operation.
Table is hard to
move.
Headstock is hard
to raise.
Bad surface finish
Cutting results not
square.
Spindle overheats.
Lack of power at
spindle.
TROUBLESHOOTING
Breaking tools or
cutters.
Page 28 Instructions Manual for BM-23A (M595D) 12/02/2018