SMC Networks AFF75A-20 Operation Manual page 6

Maintenance
Warning
1. Perform maintenance inspection according to the
procedures indicated in this manual.
If handled improperly, malfunction and damage of
machinery or equipment may occur.
2. Maintenance work
If handled improperly, compressed air can be
dangerous. Assembly, handling, repair and element
replacement of pneumatic systems should be
performed by a knowledgeable and experienced
person.
3. Removal of equipment, and supply/exhaust of
compressed air.
When components are removed, first confirm that
measures are in place to prevent workpieces from
dropping, run-away equipment, etc. Then, cut off the
supply pressure and electric power, and exhaust all
compressed air from the system using the residual
pressure release function.
4. Set the pressure of the compressed air to zero
before an inspection.
Stop the flow of compressed air and confirm that the
Pressure is set to zero.
5. Do not touch high temperature areas.
Poses a risk of burns, if the equipment will be used in
high-temperature (40~60℃). To prevent burns,
confirm that the case and parts (valve, bolt, etc) are
40℃ or lower.
6. The adjustment of the safety valve and periodical
voluntary inspection of the Class 2 Pressure
Vessels are required by the Ordinance on Safety
of Boilers and Pressure Vessels. Conduct the
inspection according to the mentioned ordinance.
Caution
1. Element replacement
Replace the element immediately when the time for
its replacement has arrived.
<The replacement interval for the Element>
The replacement interval for the element is when
after one year of operation or the pressure drop
reaches 0.1 MPa.
2. Element replacement work
1) Perform element replacement work according to
the procedures indicated in this manual. If handled
improperly, malfunction and damage of machinery
or equipment may occur.
2) When performing element replacement work,
confirm that the pressure is set to zero.
3) Install the cover and bolt correctly to specified
position, after performing element replacement
work.
3. Cleaning of equipment
When replacing the element, clean gasket, cover
seat surface and thread for sealing properly.
Maintenance
4. Gasket replacement
Replace the gasket immediately when the time for its
Replacement has arrived.
<The replacement interval for the Gasket>
The replacement interval for the gasket is when after
one year of operation or when degradation or air
leakage occurs.
5. Gasket replacement work
Perform gasket replacement work according to the
procedures indicated in this manual as element
replacement work.
6. Discharge the drain at least once a day.
Failure to discharge the drain will allow the
accumulated drain to flow over to the outlet side.
7. Keep the certificate of Class 2 Pressure Vessel in
a safe place.
AFF220A is subject to Class 2 Pressure Vessel Act.
Certificate will be sent in 2 to 4 weeks later after the
shipment of the product.
Certificate of pressure vessel
AFF220A is classified as a Class-2 pressure vessel.
[Pressure vessel defined by Industrial Safety and Health
Law Enforcement Ordinance (Japan)]
(1) The Certificate of pressure vessel (Japanese) will be
sent 2 to 4 weeks after the product delivery.
Ensure that this certificate is kept safely to prevent loss.
Before exporting this product, please check what kind of
examination (Standard) and certification is required by the
destination countries.
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