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PRECISION MACHINE TOOLS
Maintenance Manual
2-5 Spindle Alarm Handling
1) For this unit, if the screen displays "ALARM 1002, 1056, 2004," check whether the temperature of
the protective device of the bearing is 50°C. After checking the temperature, check whether the pipelines
are abnormal, squeezed or broken. Check whether the oil cooler and the air compressor are normal.
Wait for the temperature to drop before turning on the spindle for warm-up. This is the first line of
protection for the spindle.
2) The second spindle protection is the oil pump. The oil pump has liquid level detection, and when the
level is too low, ALARM will be issued. If the oil pipeline is blocked, the screen will display ALARM 1002.
3) The third spindle protection is the pressure switch for air pressure supply. If there is insufficient air
pressure, the mixing valve will be incapable of emitting the oil aerosol. If this ALARM goes off, check
whether the oil pipeline is broken and whether air pressure supply is sufficient.
4) If the clients still cannot turn off the alarm after checking relevant pipelines, contact the service
department of the Company. Do not modify the setting arbitrarily.
5) Messages of the ALARM signals:
1. 1002 LUBE PRESSURE FAULT：Insufficient pressure from the automatic lubrication pump
2. 1056 SPINDLE COOLER ALARM：Abnormal spindle oil cooling function
3. 2004 LUBE LEVEL ALARM：Under the standard liquid level of the oil tank of the automatic
lubrication pump
6) For relevant settings, please refer to the electrical instructions.
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