８．Maintenance Procedure; ８．１ Warning & Caution For Maintenance - Yoshitake DP-10 Series Instruction Manual

８．Maintenance Procedure
８．１ Warning & Caution for Maintenance
Warning
（１） Carry out the disassembling and maintenance only after confirming that no power
is supplied.
* May cause an electric shock.
（２） Completely discharge internal pressure from the valves, lines, and cool the valves
down to a level where you can touch it with bare hands disassembly and
inspection.
* Failure to do so may result in injury or burns due to residual pressure or spillage
around the valve.
（３） In case of using high temperature fluid, do not touch the valve directly bare hands.
* May result in burn.
（４） Do not supply electric power while the solenoid coil is detached from the product.
* The over current may cause the fire.
Caution
（１） In order to maintain original performance and function, examine daily and personal
inspection.
（２） Solenoid valve shall be disassembled and inspected by qualified person or
manufacture.
* Request the treatment to specialized dealer or manufacture in case of any
problem.
（３） When disassembly, the application inside the valve may leak, so catch with
container. When disassembly, take out the application inside valve.
（４） Be sure not to drop down the product. And put over a soft cloth during
disassembly to avoid the scratch on the products.
（５） While re-assembly, tighten all hexagon bolts evenly on each bolt in turn of diagonal
position.
（６） For repairing, be sure to use formal parts. And be sure not to modify the product.
* May results in physical damage or burn by broken of products, leakage of fluids,
or abnormal operation.
（７） In the event of failure, be sure to turn off the electric current source and give and
inspection of the products.
* May results in physical damage.
（８） When finding any defect on the product, follow the guidance from maintenance.
* May cause malfunction.
（９） When assembling the products, be sure to change into new gasket. The new gasket
comes with gasket paste.
* May results in leakage when using old gasket.
（10） After assembling or re-assembling, perform test working before start operation
again. For the contents, refer the article on "7.2 Test Working".
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