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MAINTENANCE MANUAL

G15 Series

Doc. No.

NDP 497M-02

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Summary of Contents for Global Series

Page 1: ...MAINTENANCE MANUAL G15 Series Doc No NDP 497M 02...

Page 2: ...bed and operate the product in an improper manner there is danger of personal injury or property damage Furthermore to indicate the type of danger and damage the following symbols are also used along...

Page 3: ...Ordering Replacement parts 1 4 Balls Valve seats 4 1 Removal 2 4 2 Inspection 4 4 3 Installation 4 5 Diaphragm and Center rod 5 1 Removal 5 5 2 Inspection 7 5 3 Installation 7 6 Guide bush 6 1 Remova...

Page 4: ...operation material is repeatedly taken in and discharged out 2 Tools etc 2 1 General tools Socket wrenches 10 mm A_ S_ P_ 12 mm P_ 13 mm A_ S_ 17 mm A_ S_ Open end wrenches 10 mm A_ S_ 12 mm P_ 13 mm...

Page 5: ...ve the manifold Fig 4 1 Remove the O ring valve stopper ball valve seat Fig 4 2 Turn over the main body assembly Fig 4 3 Remove 4 mounting bolts from lower manifold and remove the base and the manifol...

Page 6: ...d A Fig 4 5 Remove the Ball valve seat A valve seat B O ring Fig 4 6 Turn over the main body assembly Fig 4 7 Remove 4 mounting bolts from lower manifold B and remove the manifold B Fig 4 7 Remove the...

Page 7: ...e the dimension shown at left and if it is outside the usable range replace the valve seat A Usable range of Valve seat A 0 055 0 071 in 1 4 1 8 mm Valve seat B Fig 4 12 Measure the dimension shown at...

Page 8: ...from the opposite side of the main body Remove the center disk on both sides of the center rod Fig 5 3 After the center disk on one side have been removed remove the center disk and diaphragm Remove...

Page 9: ...enter disk on one side have been removed using the spanner 22 mm etc remove the center disk diaphragm and backup diaphragm only PT Type Remove the diaphragm backup diaphragm only PT Type center disk a...

Page 10: ...o the main body Keep the convex side to the outside for diaphragm For the model with PTFE diaphragm put the O rings into both side of the diaphragms cf Fig 5 9 Fig 5 10 A_ type Tighten the nuts S_ typ...

Page 11: ...ber Center rod Out chamber PS 177 in lbf 20 N m 105 in lbf 12 N m PT 177 in lbf 20 N m 89 in lbf 10 N m NOTE Make sure there is no dust on the seal surface in order to prevent seal damaged Replace the...

Page 12: ...e the inside diameter and if it is outside the usable range replace the guide bush stopper guide bush A guide bush B Usable range of guide bush stopper guide bush A guide bush B 0 6299 0 6496 in 16 0...

Page 13: ...m inside the pump Fig 7 1 Remove the cap A and cap B using the cap and disk remover special tool Part No 771132 Fig 7 2 Remove Spool assembly by pushing it from Cap A side the side without reset butto...

Page 14: ...body assembly from the main body Fig 7 5 Remove the cap using the Pliers Fig 7 6 Remove the cushion and then push out the spool assembly from opposite side Fig 7 7 Remove the sleeve using the sleeve r...

Page 15: ...if it is outside the usable range replace the sleeve Usable range of Sleeve A_ S_ Part to measure A 0 6909 0 6937 in 17 55 17 62 mm Part to measure B 0 9862 0 9890 in 25 05 25 12 mm P_ Part to measure...

Page 16: ...olts that balance should be equal from both side on diagonal line with even torque Retighten the Out chamber and then the manifold in this order Fig 8 1 Fig 8 2 Retain bolts for the out chamber Retain...

Page 17: ......

Page 18: ...USA PHONE 1 847 631 9200 or 1 800 990 7867 Toll Free FAX 1 847 631 9273 www yamadapump com Manufactured by YAMADA CORPORATION International Department 1 1 3 CHOME MINAMI MAGOME OHTA KU TOKYO 143 8504...

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