Yaskawa AC Servo Drive Rotary Servomotor Safety Precautions - Manual (Page 10)

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• A Servomotor is a precision device. Do not subject the output shaft or
the main body of the Servomotor to strong shock.
• Design the machine so that the thrust and radial loads on the motor
shaft during operation do not exceed the allowable values given in the
catalog.
• When you attach the key to the motor shaft, do not subject the key slot
to direct shock.
• Do not allow any foreign matter to enter a SERVOPACK or a Servomo-
tor with a Cooling Fan and do not cover the outlet from the Servomo-
tor’s cooling fan.
There is a risk of failure.
• If you use oil as the gear lubricant, always inject the specified oil
before starting operation.
• You can install the Servomotor either horizontally or vertically. How-
ever, if you install a Servomotor with an Oil Seal with the output shaft
facing upward, oil may enter the Servomotor depending on the operat-
ing conditions. Confirm the operating conditions sufficiently if you
install a Servomotor with the output shaft facing upward. Some Servo-
motors with Gears have restrictions on the installation orientation.
Refer to the relevant technical documents.
• If an installation orientation is specified for a Servomotor with a Gear,
install the Servomotor in the specified orientation.
There is a risk of failure due to oil leakage.
• For a Servomotor with an Oil Seal, use the Servomotor with the oil seal
in a lubricated condition with only splashing of oil.
If the Servomotor is used with the oil seal under the surface of the oil, oil
may enter the Servomotor, possibly resulting in failure.
• The shaft opening of a Servomotor is not waterproof or oilproof. Imple-
ment measures in the machine to prevent water or cutting oil from
entering the Servomotor.
There is a risk of failure.
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NOTICE