41
Design
Handling
Caution
Caution
Warning
1. Do not apply a load in excess of the operating limit.
Select a suitable actuator by work load and allowable moment.
If the product is used outside of the operating limit, the
eccentric load applied to the guide will be excessive and have
adverse effects such as creating play on the guide, degrading
accuracy and shortening the life of the product.
2. Do not use the product in applications where
excessive external force or impact force is applied
to it.
The product can be damaged.
The components including the motor are manufactured to
precise tolerances. So that even a slight deformation may
cause a malfunction or seizure.
Selection
1. Do not increase the speed in excess of the operating
limit.
Select a suitable actuator by the relationship of the allowable
work load and speed, and the allowable speed of each stroke.
If the product is used outside of the operating limit, it will have
adverse effects such as creating noise, degrading accuracy
and shortening the life of the product.
2. When the product repeatedly cycles with partial
strokes (100 mm or less), lubrication can run out.
Operate it at a full stroke at least once a day or
every 1000 strokes.
3. When external force is applied to the table, it is
necessary to add external force to the work load as
the total carried load for the sizing.
When a cable duct or flexible moving tube is attached to the
actuator, the sliding resistance of the table increases and may
lead to operational failure of the product.
1. Do not allow the table to hit the end of stroke.
When incorrect instructions are inputted, such as using the
product outside of the operating limit or operation outside of
actual stroke through changes in the controller/driver setting
and/or origin position, the table may collide against the stroke
end of the actuator. Please check these points before use.
If the table collides against the stroke end of the actuator, the
guide, belt or internal stopper can be broken. This may lead to
abnormal operation.
Handle the actuator with care when it is used in the vertical
direction as the workpiece will fall freely from its own weight.
2. The actual speed of this actuator is affected by the
work load and stroke.
Check specifications with reference to the model selection
section of the catalog.
3. Do not apply a load, impact or resistance in addition
to the transferred load during return to origin.
4. Do not dent, scratch or cause other damage to the
body and table mounting surfaces.
This may cause unevenness in the mounting surface, play in
the guide or an increase in the sliding resistance.
5. Do not apply strong impact or an excessive moment
while mounting the product or a workpiece.
If an external force over the allowable moment is applied, it
may cause play in the guide or an increase in the sliding
resistance.
6. Keep the flatness of mounting surface 0.1 mm or
less.
Unevenness of a workpiece or base mounted on the body of
the product may cause play in the guide and an increase in
the sliding resistance.
In the case of overhang mounting (including cantilever), to
avoid deflection of the actuator body, use a support plate or
support guide.
7. When mounting the actuator, use all mounting
holes.
If all mounting holes are not used, it influences the
specifications, e.g., the amount of displacement of the table
increases.
8. Do not hit the table with the workpiece in the
positioning operation and positioning range.
9. Do not apply external force to the dust seal band.
Particularly during the transportation.
Series
LEJ
Electric Actuator/
Specific Product Precautions 1
Be sure to read before handling. Refer to back cover for Safety Instructions.
For Electric Actuator Precautions, refer to “Handling Precautions for SMC Products”
and the Operation Manual on SMC website, http://www.smcworld.com
