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⑦ Keep the cutting tool shank and collet chuck clean. If contaminants are left in the collet chuck or chuck nut,
excessive run-out will cause damage to the cutting tool and or Spindle.
⑧ Do not strike or disassemble the Spindle.
⑨ Please set the cutting tools to minimize the overhang amount. 13mm is the maximum amount of overhang to
maintain high accuracy and safety.
Table 3 . Overhang and Speed
Overhang (mm)
20
25
50
※
N = Max. Operating Speed with 13 mm overhang.
13 . TROUBLESHOOTING
If a problem or concern occur, please check the following items prior to consulting your dealer.
Trouble
Motor Spindle
The spindles ball bearings have been damaged.
does not rotate or
rotate smoothly.
The motor has been damaged.
Overheating
Cutting debris has contaminated the ball
during rotation.
bearings, and the ball bearings are damaged.
Low air pressure.
Abnormal
The tool shank is bent.
vibration or noise
Cutting debris has contaminated the ball bearing.
during rotation.
The spindles ball bearings have been damaged.
Tool slippage.
Collet chuck or chuck nut are not correctly
installed.
The collet chuck and the chuck nut are worn.
High run-out.
The tool is bent.
Chuck nut is not correctly installed.
The collet chuck and the chuck nut are worn.
Inside of the spindle is worn.
Contaminants inside the collet chuck and the
chuck nut or the spindle.
The spindle ball bearings has been damaged.
Refer to the E 3000 CONTROLLER Operation Manual.
14 . DISPOSAL OF THE MOTOR SPINDLE
When disposal of a Motor Spindle is necessary, follow the instructions from your local government agency for
proper disposal of industrial components.
-1
Max. Speed (min
) (rpm)
N x 0.5
N x 0.3
N x 0.1
Cause
13
Fig. 15
Inspection / Corrective Action
Replace the ball bearings.
(Return to NAKANISHI dealer service.)
Replace the motor.
(Return to NAKANISHI dealer service.)
Replace the ball bearings.
(Return to NAKANISHI dealer service.)
Check air hose connection and air pressure.
Replace the tool.
Replace the ball bearings.
(Return to NAKANISHI dealer service.)
Check and clean the collet chuck and chuck nut.
Reinstall the collet chuck and chuck nut.
Replace the collet chuck and chuck nut.
Change the tool.
Secure the collet chuck and the chuck nut correctly.
Replace the collet chuck and the chuck nut.
Replace the spindle shaft.
(Return to NAKANISHI dealer service.)
Clean the collet chuck, chuck nut and the inside
of the taper and spindle.
Replace the ball bearings.
(Return to NAKANISHI dealer service.)
2013 . 11 . 20 0002
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