YAMADA DP-20F/P Maintenance Manual

Contents

YAMADA DP-20F/P Maintenance Manual Manual pdf 4 page image

1Fig.2.1 Fig.2.21. Principles of operationThere are two diaphragms fixed to the center rod, one at each end. When compressed air is supplied to airchamber b (right side, see Fig.1.1), the center rod moves to the right, the material in material chamber B ispushed out, and at the same time material is sucked into material chamber A.When the center rod is moved full-stroke to the right, the air switch valve is switched, compressed air is sent toair chamber a (left side, see Fig.1.2), and the center rod moves to the left. The material in material chamber A ispushed out, and at the same time material is sucked into material chamber B.Through repetition of this operation, material is repeatedly taken in and discharged out.2. Tools, etc.2.1 General tools・Socket wrenches 10 mm, 13 mm, 17 mm・Open-end wrenches 13 mm, 17 mm・Hexagonal wrench・Snap ring pliers・Flat head screwdriver2.2 Special tools (sold separately)・Pilot valve remover ・Sleeve removerFor pilot valve, cap and valve seat For sleevePart No. 712606 Part No. 7131482.3 Others・Assembly lubricant (oil) Fomblin® Y25 or equivalent・Assembly lubricant (grease) Fomblin® GR AR555 or equivalent