1.0 05/05/2013
32
Loud and, repetitive noise
near machine or noto.
1
．
Fixed nut missing or
loose.
2
．
Motor fan gets in touch
with lid.
1
．
Check nut, replace or
screw up as tightly as
possible.
2
．
Tighten up fan or replace
part faulty.
Motor overheating.
1
．
Motor overload.
2
．
Motor cooling vents
blocked.
1
．
Reduce motor load.
2
．
Clean
up
motor
to
maintain
proper
air
circulation.
When cutting, motor is too
noisy.
Overheating
or
pause in cutting.
1
．
Cutting depth or feed
speed is too great.
2
．
During
cutting
operation, motor or
feed speed is wrong.
3
．
Cutting tool is not
sharp.
4
．
Gear is set too tight,
causing being bitten.
1
．
Reduce cutting depth or
feed speed.
2
．
Use
suitable
speed
according to the feed
speed table.
3
．
Tool
sharpened
or
replaced.
4
．
Fine-tuning gear until,
when turning the chuck
by hand, gear rotates
smoothly.
7.1.2 Symptoms in Operation and Work
Symptoms
Possible Causes
Corrective Action
Vibration is too large in
startup and running of
overall machine.
1
．
Workpiece is placed
out of balance.
2
．
Belt loose or damaged.
3
．
V-pulleys
are
not
aligned.
4
．
Gear
worn
or
damaged.
5
．
Chuck
or
flower-shapeed chuck
is not balanced.
6
．
Spindle bearing worn
seriously.
1
．
Remount
workpiece
and mount it on the
center position of the
axis to the utmost.
2
．
Tighten/replace belt, if
necessary.
3
．
Align V-pulleys.
4
．
Check
gear
and
replace it, if necessary.
5
．
Adjust chuck or flower-
shapeed
chuck,
contact manufacturer
for help.
6
．
Replace
worn-out
spindle bearing.
