SMC Networks SYJ Series Operation Manual page 16

Remedy
No.
①
Re-wire correctly.
②
Replace part.
③
Replace part or re-wire positively.
④
Replace valve.
⑤
Regulate pressure so that pilot pressure will fall within operating pressure range furing operation.
･If wrong oil is used, completely air blow to remove oil, and replace valve. After valve is replaced,
use turbine oil class 1 (ISO VG32).
⑥
･When a large quantity of drain is given and cannot carry out drain omission surely, install either an
auto-drain or a dryer.The valve should be replaced.
⑦
Check voltage. Replace valve (pilot valve).
⑧
Protect the valve so that water does not splash the coil. Replace valve (pilot valve).
In case of intrusion of foreign matter, to remove foreign matter by air blow of piping and then replace
⑨
valve.
⑩
Repair or replace actuators.
⑪
After stopping air and re-tighten the bolts.
⑫
Reduce the amount of lubricant to the degree that no oil splashes out of the air exhaust (R and PE) port.
If no improvement is achieved in spite of the above countermeasure, inside of the valve may have some
abnomality. In this case, stop using the valve immediately.
If any of followings are carried out, inside of the valve may have some failure. In this case, stop using
the valve immediately.
① Voltage out of rated voltage has been used.
② Oil other than the specified one has been lubricated.
③ Lubrication has been stopped intermediately, or lubrication was suspended temporary.
④ Water splashed directely.
⑤ Strong impact was given.
⑥ Alien substance such as drain and particle got into. Drain or garbage invaded a valve.
⑦ Prohibited way of using the valve which is written at "Precautions" section in this operation manual
was carried out excluding above-mentioned.
Remedy
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No.SYJ3000-OMM0002-A