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WARNING
⑨ Do not use bent, broken, chipped, out of round or sub-standard tools, as this may cause them to
shatter or explode. Tools with fractures or a bent shank will cause injury to the operator. When
using a new tool, rotate it in a low speed and increase speed gradually for safety.
⑩ Do not exceed the maximum recommended allowable tool speed. For your safety, use speeds
below the maximum allowable speed.
⑪ Do not apply excessive force. This may cause tool slippage, tool damage, injury to the operator or
loss of concentricity and precision.
CAUTION
① Do not drop or hit this Brushless Motor Spindle, as shock can damage to the internal components.
② Be sure to clean the collet and collet nut, the inside of the spindle before replacing the tool. If
ground particles or metal chips stick to the inside of spindle or the collet, damage to the collet or
spindle can occur due to the loss of precision.
③ When cleaning a Brushless Motor Spindle, stop the Brushless Motor Spindle and remove debris
with a soft brush or a cloth. Do not blow air into the dust proof cover area (refer to section
" 6 - 2 Outside View " ) with compressed air as foreign particles or cutting debris may get into the
ball bearing.
④ Always clean the tool shank before installing the tool in the spindle.
⑤ When sizing the correct collet size to the tool shank diameter, a tolerance of +0 〜 - 0.01mm is
strongly recommended.
A tool shank within the +0 〜 - 0.1mm range is mountable, however, this may cause poor
concentricity and or insuf¿cient tool shank gripping force.
⑥ Select suitable products or tools for all applications. Do not exceed the capabilities of the
Brushless Motor Spindle or tools.
⑦ Do not stop the supply cooling air for motor during operation of the machine.
Removing the air pressure from the Brushless Motor Spindle causes a loss of purging, allowing
the Brushless Motor Spindle to ingest coolant. This will cause damage to the Brushless Motor
Spindle.
⑧ Carefully direct coolant spray to the tool. Do not spray directly on the Brushless Motor Spindle
body. If large amount spray directly on the Brushless Motor Spindle, it may cause excess load of
the motor rotation with loss of durability to the Brushless Motor Spindle.
⑨ Stop working immediately when abnormal rotation or unusual vibration are observed. Immediately,
please check the content of section " 14. TROUBLESHOOTING ".
⑩ Always check if the tool, collet, collet nut, connection hose and supply air hose for damaged
before and after operating.
⑪ If the collet or collet nut show signs of wear or damage, replace them before a malfunction or
additional damage occurs.
⑫ After installation, repair, initial operation, or long periods of non operation, please refer to section
" 11. BREAK-IN PROCEDURE " detailed in Table. 2. When checking the spindle, no vibration or
unusual sound should be observed during rotation.
⑬ Do not disassemble, modify or attempt to repair this Brushless Motor Spindle. Additional damage
will occur to the internal components. Service must be performed by NSK NAKANISHI or an
authorized service center.
⑭ When using this Brushless Motor Spindle for mass production, please consider the purchase of an
additional Brushless Motor Spindle to be used as a back-up in case of emergency.
⑮ Securely connect the compressor supply connection hose and the air hose to the Air Line Kit and
the Brushless Motor Spindle to avoid accidental disconnection during use.
2
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