YAMADA NDP-5 series Maintenance Manual

6
5. Diaphragm and Center rod
5.1 Removal
■BA_, BS_, BF_ types
▪ Remove the ball and valve seat etc.(see [ 4.1 Removal BA_,
BS_, BF_ types])
▪ Remove the 16 (24 on the NDP-80) retainer bolts from the out
chamber, and remove the out chamber. [Fig.5.1]
▪ Remove the nuts on both sides of the center rod. [Fig.5.2]
▪ After the nut on one side have been removed, remove the
center disk and diaphragm. Remove the diaphragm, center disk
and center rod from the opposite side of the main body.
▪ Remove the nut on the opposite side using the double nut.
[Fig.5.3]
▪ Remove the coned disk spring, center disk and diaphragm.
■BP_, BV_ types
▪ Remove the ball etc. (see [ 4.1 Removal BP_, BV _types]).
▪ Remove the 8 (4 on the NDP-40) retainer bolts from the stand
body, and remove the stand body. [Fig.5.4]
▪ Remove the 16 (24 on the NDP-80) retainer bolts from the out
chamber, and remove the out chamber. [Fig.5.5]

YAMADA NDP-5 series Specifications

General

Brand	YAMADA
Model	NDP-5 series
Category	Water Pump
Language	English