4-87
4
PILOT VALVE
DISASSEMBLY AND ASSEMBLY
Special tools
Unit: mm
Installation jig A
Quantity: 1
Material A: S45C
Material B: SCM415N (carburizing har
dening)
Installation jig B
Quantity: 2
Material B: SCM415N (carburizing har
dening)
Disassembly
1. Take out the adjusting nut (1) and remove the cam (2)
from the joint.
• Secure the valve to the vice by using a copper or
lead plate.
2. Take out the joint (3), and then remove the plate (4).
• Use the installation jigs A and B.
4KAC02Z
ø29
ø26.5
23.5
ø19
A
B
50
54
13
46
25
17
69
ø23
ø27
ø31
+0.2
0
16
+0.2
0
+0.013
0
+0.028
+0.015
4KAC03Z
0.5x15°
11.6
C0.5
C0.5
R4.5
±0.1
0
6.5
9.5
12.5
±0.1
15.5
R5.8
R13
±0.1
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