Sanyo Denki SANMOTION 3E S, Instruction Manual, Page: 114 / 488

3. Installation
3-7
3.2.6 Protective cover installation
■
Install a protective cover (as described below) for motors continuously subjected to liquids.
■
Turn the connectors (lead outlets) downwards within the angle range shown in the picture
below.
■ Install the cover on the side where the water or oil would drip.
■
Install the cover with slant (for runoff), to prevent water or oil from collecting.
■
Make sure that the cable does not get soaked in water or oil.
■
Create a sag in the cable outside the cover, to make sure water or oil does not penetrate to
the motor.
■
If it is not possible to install the connectors (lead outlets) facing downwards, create a sag in
the cable to prevent water or oil from entering the motor.
3.2.7 Gear installation and Integration with the target machinery
■
The oil level of the gear box should be below the oil seal lip, for a slight spraying effect on the
lip.
■
Create a hole to prevent pressure build-up inside the gear box, as pressure can cause water
or oil to penetrate the oil seal and enter inside the motor.
■
If the motor is used with the shaft facing upwards, an oil seal should be used on the opposite
side of the mechanism as well. In addition, install a drain to expel the water or oil that may
penetrate through this oil seal.
Sag
Seal with shielded packing, etc.
Cover
50
°
max
50
°
max
Water (oil) pool
Shaft outer diameter
Gear
Oil seal lip
Oil level
Servo motor