SMC Networks C(D)U Series Operation Manual - page 8
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2-4 Piping
① Use clean air.
Do not use compressed air which contains chemicals, synthetic oils
containing organic solvents, salts or corrosive gases, etc., as this can
cause damage or malfunction.
②Install an air filter.
Install an air filter upstream near the valve.
A filtration degree of 5 micron millimeter or less should be selected.
③Take appropriate measures to ensure air quality,
such as by providing an after cooler, air dryer, or
water separator.
Do not use compressed air containing a lot of condensate, which
can cause the operating failure of the product and other pneumatic
equipment.
④Ensure that fluid and ambient temperature are
within the specified range.
When operating at temperatures below 5
o
C, moisture in the circuit
may freeze and cause breakage of seals or malfunction. Corrective
measures should be taken to prevent freezing.
For detailed information regarding the quality of the compressed air
described above, refer to SMC's Cleaning Systems".
!
Warning
① Do not use in environments where there is a
danger of corrosion.
Refer to the construction drawings regarding cylinder materials.
② Install a cover over the rod if it is used in an area
that is dusty, or in an environment in which
water or oil splashes on the cylinder.
③ An area exposed to direct sunlight.
① Be sure to connect the piston rod and the
load so that their axial centers and
movement directions match.
When not axially aligned, stress could be applied to the piston
rod and the cylinder tube, causing the inner surface of the
cylinder tube, the bushing, the piston rod surface, and the seals
to wear and become damaged.
② Do not scratch or dent the sliding parts of
the cylinder tube or piston rod etc., by
striking them with other objects.
Cylinder bores are manufactured to precise tolerances, so that
even a slight deformation may cause malfunction. Also,
scratches or gouges, etc., in the piston rod may lead to
damaged seals and cause air leakage.
③ Tightening torque
When the free-mount cylinder is mounted, refer to
the table below.
!
Caution
2-6 Air Supply
2-7 Operating environment
!
Cauti n
o
!
Caution
!
Warning
!
Caution
2-5 Lubrication
2-3 Mounting
① Lubrication of non-lubricating cylinder
The product has been lubricated for life at the time of manufacture, and
does not require lubrication in service. If a lubricant is used in the system,
use turbine oil Class 1 (with no additive) ISO VG32.
Bore size
(mm)
Hexagon socket head
cap screw (mm)
Appropriate tightening
torque (Nm)
6,
10
M3 1.08±10%
16
M4 2.45±10%
20,
25
M5 5.10±10%
32
M6 8.04±10%
④Do not use the product until you have verified
that the equipment can operate properly.
After mounting, repair or modification, etc., connect the air
supply and electric power, and then confirm proper mounting by
means of appropriate function and leak inspections.
⑤Operation Manual
Install and operate only after reading the operation manual
carefully and understanding the contents. Keep the manual in a
safe place for future reference
.
①Before piping
Before piping, perform air blow (flushing) or cleaning to remove
any cutting chips, cutting oil, dust, etc. from the piping.
②Sealant tape
When screwing piping or fittings into ports, ensure that chips from
the pipe threads or sealing material do not enter the piping. Also,
if pipe tape is used, leave 1.5 to 2 thread ridges exposed at the
end of the threads.