IHI 17VX3 - Control Valve Assembly

STRUCTURE
17VX3
CONTROL VALVE ASSEMBLY
Weight: 27 kg
MR2
Main relief
valve
Gross-section of relief valve assembly
No. Name
Olty
1 Socket 1
2 Regulator 1
3 Piston 1
4 Adjusting part 1
5 Pressure-regulating part 1
6 Regulating valve 1
7 Adjusting screw 1
8 Nut 1
9 Regulating valve spring 1
10 Pressure-regulating valve spring 1
11 o ring 1
12 o ring 1
13
o ring 2
14 Backup ring 2
15
o ring 1
8
11
Pump
Main relief valve set pressure
MPa
P1 MR1
20.6 +g.49 at 17.2 L/min
P2 MR2
20.6
+g.49 at 17.2 L/min
P3 MR3
18.1 +g.49 at 12.0 L/min
5
/
I
2
15
OR3
Bucket Dig
Overload
relief valve
Antivoid valve
T2
OR1
Boom Raise
Overload
relief valve
OR1
Boom Lower
Overload
relief valve
MR1
Main relief
valve
~
g OR2
~ Arm In
6 Overload
=2 relief valve
MR3
Main relief
valve
OR2
Arm Out
Overload
reiief valve
OR4
Blade Lower
Overload
relief valve
T1
Antivoid valve
Keep Tighten torque
when assembling
the valve
(4 places)
16.7-17.6
N-m
,- __ -',-- __ -0- -- - - _: 1L -0- - - - - - - - - - - - - - - -'I L - - - - - -~ L __ ~ L __ .~ L ~ L .~ L - - ~
A181
A2 82
84 A4
85 A5
86 A6
P2
P1
88 A9
Al0 810
Valve Over load relief valve set pressure
No. MPa
OR1 Boom
24.5
+g.49 at 5 L/min
OR2 Arm
24.5
+g.49 at 5 L/min
OR3 Bucket Dig
24.5
+g.49 at 5 L/min
OR4 Blade
20.6
+g.49 at 5 L/min
BOOM
SWING BLADE SWING SERVICE ARM TRAVEL(L.H) TRAVEL(r.H) BOOM BUCKET
2-10-1