![background image](http://html1.mh-extra.com/html/smc-networks/vp31-5-series/vp31-5-series_operation-manual_1299443014.webp)
Countermeasure
No.
Countermeasure
(1)
Connect wires correctly. Apply the correct voltage.
(2)
Replace the part or lead wire (or pilot valve).
(3)
Replace the parts or connect wires correctly.
(4)
Replace the pilot valve.
(5)
If incorrect oil has been used for lubrication, remove the oil with air blow, and replace the valve with
a new one.
If a lubricant is used in the system after the replacing the valve, use turbine oil Class 1 (ISO VG32).
Check that the lubricating amount is correct.
(6)
If there is a large amount of condensate or condensate cannot be removed completely, mount an
auto drain or install a dryer and replace the valve.
(7)
Check if the pressure is within the specification range. Check that the pressure is not dropped
remarkably when the valve is operated.
(8)
Heat (ignition) might be generated from the coil, stop using the valve and replace it. Adjust the
voltage so that it will be within the operating voltage range.
(9)
Protect the valve to prevent it from being exposed to water.
(10)
Remove foreign matter in the piping by air blow and replace the valve.
(11)
Repair or replace the actuators.
(12)
Adjust the voltage.
If the countermeasures above are not effective, there may be a problem with the valve.
In that case, stop using the valve immediately.
If any of the examples below are applicable, there may be an internal problem with the valve.
Stop using the valve immediately.
1. Voltage was outside of the rated voltage.
2. Oils other than specified were supplied.
3. Lubrication was stopped in the middle of lubrication. Or, lubrication was interrupted temporarily.
4. Directly exposed to water.
5. Severe impact was applied.
6. Foreign matter such as condensate or rubber entered.
7. Other than the cases mentioned above, any usage which falls under the precautions in this Operation
Manual.
∗
If the product has failed, then please return the valve as it is.
- 13 -
No.VP3145-OMM0002-B