YAMADA NDP-40 Series - Table of Contents

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