Nakanishi BMS-4020-MQL Series, Руководство по эксплуатации

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⑥ Whenever installing a Brushless Motor Spindle to a fi xed metal base, ensure that the fi xed metal
base is grounded in order to avoid risk of an electric shock.
⑦ When installing a tool, tighten the collet correctly and check again the collet and collet nut before
use. Do not over-tighten the collet. This may cause damage to the spindle.
⑧ 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.
⑨ Do not exceed the recommended maximum allowable speed of the tool. For your safety, use
speeds below the maximum allowable speed.
⑩ Do not apply excessive force. This may cause injury to the operator by slippage or damage of the
tool, or loss of concentricity and precision of the Brushless Motor Spindle.
⑪ When using the coolant, be sure to use a dedicated coolant line . If non-coolant recommended
hose is connected, the hose may burst, which may cause injury to the operator.
WARNING
① A coolant or oil mist supply is required when operating this Brushless Motor Spindle.
* Never operate this Brushless Motor Spindle in a dry condition when using water based coolant.
It will cause internal damage to the Brushless Motor Spindle.
If this Brushless Motor Spindle is being used in a dry cutting condition, always initially supply
either oil based coolant or oil mist to the unit. After every 30 minutes of dry operation, oil based
coolant or oil mist must be re-introduced to the unit. Never operate this unit for no more than 30
minutes in a dry state. If this Brushless Motor Spindle is run more than 30 minutes in a dry state,
premature wear to the internal parts, abnormal noise, excess heat generation and internal oil leaks
to the Brushless Motor Spindle will occur.
② Do not drop or hit this Brushless Motor Spindle, as shock can damage to the internal components.
③ 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.
④ 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 - 3
Outside View ") with compressed air as foreign particles or cutting debris may get into the ball
bearing.
⑤ Always clean the tool shank before installing the tool in the spindle.
⑥ 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 fi cient tool shank gripping force.
⑦ Select suitable products or tools for all applications. Do not exceed the capabilities of the
Brushless Motor Spindle or tools.
⑧ Do not stop the supplied cooling air to the Brushless Motor Spindle 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 and debris. This will cause damage to the Brushless
Motor Spindle.
⑨ When supplying coolant spray to the tool from outside of the Brushless Motor Spindle, while
supplying coolant or oil mist to the Brushless Motor Spindle, carefully direct the coolant spray
directly onto the tool. Do not direct the coolant spray directly on the Brushless Motor Spindle or
the collet nut. Large amounts of coolant sprayed directly on the collet nut will cause excess load
on the Brushless Motor Spindle, causing a loss of durability and longevity of the Brushless Motor
Spindle.
CAUTION
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