Precautions During Reassembly - Yoshitake GP-1200 Installation And Operation Manual

8.4 Precautions during disassembly
 Caution
(1) Check that there is no damage and scratches on the main valve, main valve seat, pilot
valve, and pilot valve seat.
※ A ny scratches at sealing surface lead to increase in secondary pressure. When any
scratches are identified at main valve and seat, polish them away. And, change the
parts if scratches still exist after polishing. Also, in case any scratches are identified at
pilot valve and pilot valve seat, change into pilot valve assembly.
(2) Move the sliding section (pilot valve, piston, etc.) two to three times and confirm they
move smoothly.
※ I f the sliding parts do not move correctly, it may cause failure problems. (Working not
correctly).
(3) Replace gaskets with new ones when reassembling.
※If the gasket is used for a long time, it may cause steam leakage problem.
(4) Assemble in the reverse order of Disassembly. And tighten the bolts evenly.
※ A ssemble the valve due to the order. Failure to do so may lead to not assemble
correctly. And if the hexagon bolts are not screwed correctly, it may cause steam
leakage problem.
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■EPDT-101■