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CAUTION
（1） A supply of coolant is required when using this spindle. If the spindle is used without
supplying coolant, the generated heat could damage the components.
（2） Use coolant with an ISO viscosity grade of VG22 or lower.
（3） Do not drop or hit the spindle, as shock can damage the internal components.
（4） Do not use an end mill or grinding wheel. Load applied during machining could result
in rotation failure due to seizure of the collet nut or other malfunction.
（5） Be sure to clean the collet, the collet nut and the inside of the spindle before replacing
the drill. If ground particles or metal chips stick to the inside of the spindle or the
collet, damage to the collet or spindle can occur due to the loss of precision.
（6） When cleaning the spindle, stop the motor and remove debris with a soft brush or a cloth.
Never blow compressed air into the wrench flats section (refer to section "6 - 2 Outside
View"), as foreign particles or cutting debris may get into the ball bearings and cause
damage.
（7） Always clean the drill shank before installing the drill in the spindle. Foreign matter in
the collet or collet nut may cause excessive run-out that could damage the cutting drill
or spindle.
（8） Use a cutting drill with a shank diameter that is within a tolerance of + 0 ~ - 0.01 mm of
the collet diameter.
（9） Select suitable products or drills for all applications. Do not exceed the capabilities of
the spindle or drills.
（10） To prevent dust from entering while the machine is operating, do not stop the supply
of cooling air from the motor. If the supply of cooling air is stopped while coolant and
cutting oil is being supplied, the air purge will be lost and the coolant and cutting oil
may enter the spindle and cause damage.
（11） When using an external supply of cutting fluid in addition to the coolant, ensure that
the cutting oil is sprayed directly on the cutting edge while machining is performed.
Avoid spraying the spindle as much as possible.
（12） If abnormal rotation or vibration occurs while operating the spindle, immediately stop
working and perform inspection. (Refer to section "15. TROUBLESHOOTING".)
（13） Check the cutting drill, collet, collet nut, coolant hose and fittings for damage and
wear each day before and after work.
（14） The collet and collet nut are consumable parts. If the collet or collet nut shows signs
of wear or damage, replace it before a malfunction or additional damage occurs.
（15） When storing this product, wipe off any moisture, etc. that may have adhered to it.
Failure to do so may cause rusting.
（16） Before operating for the first time after installation, repair, or a long period of non-
operation, refer to section "13. BREAK-IN PROCEDURE". When checking the spindle,
no vibration or unusual sound should be observed during rotation.
（17） Do not disassemble, modify or attempt to repair the spindle. Otherwise, the performance
cannot be guaranteed and subsequent repair requests may be denied.
（18） When using the spindle for mass production, please purchase another spindle as
aspare in case of emergency.
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