INTRODUCTION
Control-related
Control valve
Manufacturer
KYB Corporation
Maximum flow
400 L/min
(
105.669 US gpm
) (at
2000 RPM
)
24.5 MPa
(
3554 psi
) boom down
Overload set pressure
36.3 MPa
(
5265 psi
) other
31.4 MPa
(
4555 psi
)
Main relief set pressure
(at boosting)
34.3 MPa
(
4975 psi
)
Foot relief set pressure
3.38 MPa
(
490 psi
)
Straight travel circuit
Boom-up/arm 2 pumps internal flow
Boom and arm load holding circuit
Boom-down regenerative circuit
Bucket-close regenerative circuit
Arm-in forced regenerative circuit
Boom-up priority variable orifice (for arm operation)
Function
2 pumps flow
Weight
424 kg
(
934.760 lb
)
Solenoid valve (5 stack)
Manufacturer
Yuken Kogyo Co., Ltd.
Valve specifications
Maximum flow
P→B
25 l/min
(
6.604 US gpm
) Other
5 l/min
(
1.321 US gpm
)
Rated pressure
4.5 MPa
(
652 psi
)
Port size
P.T.B port
G3/8
C1, C2, C3, C4 C5 ports
G1/4
Solenoid specifications
Operating voltage
DC
20 – 32 V
Power consumption
17 W
max.
Weight
6.7 kg
(
14.7710 lb
)
Remote control valve for left/right operations
Manufacturer
Kawasaki Heavy Industries, Ltd.
Operating pressure
3.92 MPa
(
569 psi
)
Secondary pressure
0.49 – 2.89 MPa
(
71.0745 – 419 psi
) primary short type
1,3 port
19°
Operating angle
2,4 port
25°
Weight
1.9 kg
(
4.1888 lb
)
Remote control valve for travel operation
Manufacturer
Kawasaki Heavy Industries, Ltd.
Operating pressure
3.92 MPa
(
569 psi
)
Secondary pressure
0.49 – 2.89 MPa
(
71.0745 – 419 psi
) primary short type
Operating angle
12.4°
Weight
4.1 kg
(
9.0390 lb
)
48098399 20/01/2017
34
Summary of Contents for CX490C
Page 7: ...48098399 20 01 2017 Find manuals at https best manuals com...
Page 8: ...INTRODUCTION 48098399 20 01 2017 1 Find manuals at https best manuals com...
Page 19: ...INTRODUCTION B2AB1DF6 1 48098399 20 01 2017 12...
Page 20: ...INTRODUCTION YYSJMI 002 2 48098399 20 01 2017 13...
Page 21: ...INTRODUCTION YYSJMI 006 3 48098399 20 01 2017 14...
Page 61: ...This as a preview PDF file from best manuals com Download full PDF manual at best manuals com...
