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Table of Contents

·Warnings and Cautions

·Table of Contents

1. Principles of operation ·························································· 1

2. Tools, etc.

2.1 General tools ······································································· 1

2.2 Special tools ········································································ 1

2.3 Misc. ·················································································· 1

3. Ordering Replacement parts ·················································· 1

4. Balls and Valve seats

4.1 Removal

■BA_, BS_, BF_ types ····························································· 2

■NDP-40 BP_·BV_ type ··························································· 3

■NDP-50 BP_·BV_, NDP-80 BP_ types ······································· 4

4.2 Inspection ··········································································· 5

4.3 Installation ··········································································· 5

5. Diaphragm and Center rod

5.1 Removal

■BA_, BS_, BF_ types ····························································· 6

■BP_, BV_ types ···································································· 6

5.2 Inspection ··········································································· 7

5.3 Installation

■B_C, B_N, B_E, B_V, B_H, B_S types ······································· 7

■B_T types ··········································································· 8

6. Throat bearing and Pilot valve

6.1 Removal ············································································· 9

6.2 Inspection ··········································································· 9

6.3 Installation ··········································································· 9

7. C Spool valve assembly

7.1 Removal ··········································································· 10

7.2 Inspection ········································································· 11

7.3 Installation ········································································· 11

8. Retightening of Tie rods ······················································ 12

YAMADA NDP-5 series Maintenance Manual

Other manuals for YAMADA NDP-5 series