20
⑧
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.
⑨
Select suitable products or tools for all applications. Do not exceed the
capabilities of the Spindle or tools.
⑩
When replacing the collet holder, the air supply pressure must be 0.6MPa
(87psi) to the Clamp / Unclamp air inlet joint of the spindle. If insuf
¿
cient
air pressure is supplied, the collet holder may not be released.
⑪
Do not stop the supplied cooling air to the brushless motor during
operation of the machine.
Removing the air pressure from the brushless motor causes a loss of
purging, allowing the Spindle to ingest coolant and debris. This will cause
damage to the Spindle.
⑫
Carefully direct coolant spray to the tool. Do not spray directly on the
Spindle body and collet holder. If large amount spray directly on the
Spindle and collet holder, it may cause excess load of the motor rotation
with loss of durability to the Spindle.
⑬
Stop working immediately when abnormal rotation or unusual vibration
are observed. Afterwards, please check the contents of page number
P31 " 14. TROUBLESHOOTING ".
⑭
Always check if the tool, collet, collet nut, collet holder, connection hose
and supply air hose are not damaged before and after operating.
⑮
If the collet, collet nut or the collet holder show signs of wear or damage,
replace them before a malfunction or additional damage occurs.
⑯
The Duty Cycle for opening / closing the collet holder is approximately
150,000 tool changes. Inspection and repair may be necessary if 150,000
cycles are exceeded. Return to a NAKANISHI dealer for service.
⑰
After installation, repair, initial operation, or long periods of non operation,
please refer to contents of page number P30 " 12. BREAK-IN PROCEDURE "
detailed in Table. 2. When checking the Spindle, no vibration or unusual
sound should be observed during rotation.
⑱
Do not disassemble, modify or attempt to repair this Spindle. Additional
damage will occur to the internal components. Service must be performed
by NSK NAKANISHI or an authorized service center.
⑲
When using this Spindle for mass production, please consider the
purchase the another Spindle as a spare in case of an emergency.
⑳
Securely connect the compressor supply connection hose and the air
hose to the Air Line Kit and the motor and Spindle to avoid accidental
disconnection during use.
CAUTION
