YAMADA NDP-P50, Maintenance Manual, Page: 7 / 14

4
5. Diaphragm and Center rod
5.1 Removal
▪ Remove the ball etc. (see “4.1 Removal”).
▪ Remove the 8 retainer bolts from the stand body, and remove
the stand body. [Fig.5.1]
・
Unscrew 16 bolts (include 8 bolts mentioned above) from the
out chamber and remove the out chamber.[Fig.5.2]
▪ Remove the center disk from one side using the PP wrench
(special tool: Part No. 771868). [Fig.5.3]
▪ After the center disk (outside) has been removed, remove the
diaphragm and the center disk (inside).
Remove the center disk and center rod from the opposite side
of the main body.
▪ Fix a double nut to one end of the center rod and take the
diaphragm and center disk off the opposite end. [Fig.5.4]
Be careful not to scratch or score the center rod.
Fig.5.4
Fig.5.2
Fig.5.3
Fig.5.1