Optimum B50 GSM, Руководство по эксплуатации

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Page 65 22 / 07 / 2014 Version 1.0.3 B50 GSM Geared drill
OPTIMUM
M A S C H I N E N - G E R M A N Y
Troubleshooting
8 Troubleshooting
Problem Cause / possible effects Solution
Noise during work • Spindle turning dry
• Tool dull incorrectly secured
• Grease spindle
• Use new tool and check secu-
ring (fixed setting of the bit, drill
chuck and conical chuck).
Bit “burnt“ • Incorrect speed
• The chips have not been remo-
ved from the bore hole
• Bit dull
• Operating without cooling agent
• Select another rate, feed high
• Extract bit more often
• Sharpen or replace bit
• Use cooling agent
Bit tip moves, bore is not
circular. • Hard material in the workpiece
• Unequal length of the cutting spi-
ral or angles in the bit
• Bit deformed
• Replace bit
Defective bit • No support used • Place a wooden board beneath
the piece and secure them to one
another
Bit running off-centre or
“hopping“ • Bit deformed
• Bearings worn in drilling head
• Bit badly secured
• Defective bit-holder
• Replace bit
• Have the bearings in the drilling
head replaced
• Secure the bit properly
• Replace the bit-holder
Impossible to mount drill
chuck • Dirt, grease or oil on the inner
taper surface of thedrilling head
spindle • Clean surface well
• Keep surface free of grease
Motor does not start • Motor badly connected
• Defective fuse
• Have it checked by authorised
personnel
Overheating of the motor
and lack of power • Motor overloaded
• Insufficient mains voltage
• Motor badly connected
• Reduce feed, disconnect if
necessary and have it checked
by authorised personnel
• Have it checked by authorised
personnel
Precision of the work
deficient • Heavy and unbalanced or defor-
med part
• Inexact horizontal position of the
part holder
• Balance the piece statically and
secure without straining
• Adjust part-holder
Drilling spindle does not
return to initial position • Failure of spindle return spring
• Locking bolt inserted
• Check spindle return spring and
replace if necessary
• Remove locking bolt
Impossible to move the
drilling spindle down-
wards • Locking bolt inserted
• Drill depth adjustment no
released
• Pull out locking bolt
• Release drill depth adjustment
Spindle bearing over-
heated • Bearing worn
• Excessive preloading of the
bearing
• Working at high rate for a long
time
• Replace
• Reduce bearing slack for fixed
• Reduce bit speed/feed