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2. INSTALLATION
2 - 5
2.5 Cable
The power supply and encoder cables routed from the servo motor should be fixed to the servo motor to
keep them unmovable. Otherwise, the cable may disconnect. In addition, do not modify the connectors,
terminals and others at the ends of the cables.
2.6 Servo motor with oil seal
For the servo motor with oil seal, the oil seal prevents the entry of oil into the servo motor. Make sure to
install it according in this section.
The functions have no problem even if the servo motor with oil seal may sound during operation.
(1) Pressure and oil level
Install the servo motor horizontally, and set the oil level in the gear box to be lower than the oil seal lip
always. If the oil level is higher than the oil seal lip, the oil that entered into the servo motor may cause
any failure.
Gear
Shaft
Servo motor
Oil seal
Height above oil level h
Lip
High pressure against the oil seal causes the abrasion and makes the life be short. Keep constant
internal pressure by equipping a ventilator to the gear box.
(2) Temperature
High temperature against the oil seal lip makes the life be short. Avoid exposing the oil seal lip to high
temperature oil since applicable temperature of the material is up to 100 ˚C and temperature of the oil
seal lip rises within 10 ˚C to 15 ˚C at maximum rotation.