- 10 -
VP4
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50
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-OMC0001-B
Remedy
No.
Remedy
①
Connect the wires again correctly.
②
Replace the part.
③
Replace the part or connect wires securely.
④
Replace pilot valve assembly.
⑤
Adjust pressure so that pilot pressure is within operating pressure range during opretation.
- If the lubrication oil was incorrect, remove the oil by air blow and replace the valve.
Lubricate with turbine oil class 1 (ISO VG32) after replacing the valve.
⑨
Check voltage. Replace pilot valve assembly.
⑪
Fix or replace the actuator.
⑫
Isolate the valve and re-tighten the bolts.
⑬
Replace pilot valve assembly.
⑭
Regulate voltage so that the voltage when operating is within the specified range.
1. Valve has been lubricated with a type of oil other than the specified type.
2. Lubrication has been stopped, or temporarily suspended.
3. The product has been directly exposed to water.
4. The product has been subjected to strong impact.
5. Foreign matter such as moisture or particles have entered the valve.
∗
Please return the failed valve to SMC in the exact state when the failure occurred.
- When a large amount of moisture is generated and cannot be removed, install either
an auto-drain or a dryer, and replace the valve.
⑥
To remove foreign matter, clean the pipe by air blow. Replace valve.
⑦
If lubricating oil has not been supplied, supply it. If a lubricator is installed, check it for
oil level and whether it is dropping oil properly.
⑧
If no improvement is achieved even when these countermeasures are implemented, the inside of the
valve may be damaged. In this case, stop using the valve immediately.
If any of the following actions have been carried out, the inside of the valve may be damaged. In this
case, stop using the valve immediately.
Protect the valve so that water does not splash the coil. Replace valve.
Replace pilot valve assembly.
⑩
6. The valve has been used in a way prohibited in the ''Precautions'' section in this operation manual.
