IHI 9VX3 - Page 22

STRUCTURE AND FUNCTION 9VX3
HYDRAULIC SYSTEM DIAGRAM
Control valve
I Gauge port
A9
B9
A8
Arm
ЛЛ
nr
лЖ
ж
Swing
ЛЛ
A7
•^Travel L.H.
ЛЛ1
W
B5_
A5
Confluence
P2 T2
Л
2=
Excavation
(extended) aa
- 1
Travel L.H.
>
Forward
>
I
iaa j ! L
Blade
ЛЛ
a
A4 yTravel R.H.F^
i ■ ■ 1л
B3
A3
B2
A2
B1
A1
Boom
swing
Bucket
ЛЛ
ТЖ
Щ
Boom
TO T
aM wot
Gauge port
Blade lower
>
Forward
>
^ /\д Swing left
Dump
Hoist дд
>
P1 S
ЛА
, u
i
i
i
i
High speed
travel shift
i
valvfi
Relief valve set pressure
Code
Item
Pressure
MPa
MR1 Main relief valve P1 Pump 16.2
MR2
Main relief valve P2 Pump
16.2
OR1 Overload relief valve (Boom) 18.6
OR2 Overload relief valve (Arm) 18.6
SWR
Swing relief valve 6.9
2-4-1