Spindle Pre-Operation Check - Sharp SV-4328 Maintenance Manual

PRECISION MACHINE TOOLS

2-4 Spindle Pre-Operation Check

1) Check whether the air pressure source is normal.
2) Check No.7 electric oil pump tank (Refer to the diagram in Section 3-1) for whether there is
enough oil.
3) Run the spindle at 100 rpm to check whether the oil pump is functioning normally.
4) If everything is okay, carry out the warm-up according to the spindle warm-up procedures
presented in Section 2-3.
Caution
1. The oil volume and air supply volume of this aerosol lubrication unit has already been set at the
factory. Do not adjust the values arbitrarily.
2. During the maintenance, do not disassemble, bend, or flatten the output oil pipe, which may
damage the oil pipe.
3. Timely fill up the oil tank.
4. If the spindle has been stopped for more than 2 hours, run the spindle system, including the
aerosol lubrication system, at a speed that is 20% of the maximum speed.
The machine has to have a forced warm-up for 10 minutes before starting the actual work.
5. Do not adjust the oil/air mixing valve. Use the factory-set default value for lubrication interval.
Do not change the values arbitrarily or the bearing may be damaged.
6. For this unit, if the screen displays "ALARM 1002, 1056, 2004," check and turn off the alarm
before continuing the operation.
7. Do not turn on and off the spindle repeatedly in a short period of time during the processing.
The inside of the spindle may be over-lubricated, which can cause the spindle overheated.
8. If the spindle alarm went off when starting the operation, it is due to overheated bearing. Stop
the operation. Wait until the temperature returns to normal. Check if there is any problem before
starting the warm-up and the operation.
9. It is normal to have oil dropped onto the workbench or the processing item when running the
machine. This comes from the exhausted oil aerosol. Do not block the outlet or the back pressure
may lead to temperature increase, thereby damaging the spindle bearing.
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Ver 2 Maintenance Manual