9
7. C spool valve assembly and Sleeve assembly
7.1 Removal
▪
Remove the cap using the cap and disk remover (special tool:
Part No. 771132). [Fig.7.1]
▪
Draw out the C spool valve assembly using the plyer, and
remove the seal ring from the C spool valve assembly.
[Fig.7.2]
▪
Remove the sleeve using the sleeve remover (special tool:
Part number 713148). [Fig.7.3]
7.2 Inspection
▪
C Spool valve Assembly
Seal ring [Fig.7.4]
Measure the inside thick diameter, and if it is outside the
usable range, replace the c spool valve assembly.
If the seal ring is worn out or cracked, replace C spool valve
assembly.
Usable range of seal ring
NDP-5
1.40 ~ 1.48 mm
NDP-15
1.82 ~ 1.90 mm
▪
Sleeve Assembly [Fig.7.5]
Measure the inside diameter, and if it is outside the usable
range, replace the sleeve assembly.
Usable range of Sleeve
NDP-5
Ø
9.5 ~
Ø
9.55 mm
NDP-15
Ø
15.8 ~
Ø
15.85 mm
▪
O ring
If the O ring is worn out or cracked, replace it.
<NOTE>
▪
C Spool Valve Assembly and Sleeve Assembly must be
Replaced complete set. Unable to replace individual
component.
7.3 Installation
For installation, see [Exploded View] on the separate sheet and install in the reverse order of disassembly.
<NOTE>
▪
Make sure there is no dust on the seal surface and it is not
damaged.
