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Structure Function Principle
January 24, 2017
Steering hydraulic system
CLG835H
Steering pump
Same pump is used for the plunger pump of work
hydraulic system, that is, work hydraulic system
and steering hydraulic system share one pump.
Metering pump
Main technical parameters
Structure and working principle of
components
Metering pump is located above hinge joint and
installed on bottom plate of steering column of
cab.
Working principle:
Metering pump is used to control the steering
cylinder to realize left-right turning.
1) When the steering wheel is not turned,
metering pump is in neutral position, LS port
is connected with T port, and L, R ports are
cut off.
2) When turning steering wheel to right (left),
pressure oil of P port will be connected with
R (L) port to control the action of steering
cylinder to realize right (left) steering.
3) The pressure oil of LS port is fed back to LS
port of variable pump.
Items
Parameters
Remarks
Rated displace-
ment
739ml/r\739cc/r
Amplification
ratio
1.6
Max pressure of
the system
24.1MPa\3494.5
psi
Max back
pressure
1Mpa\psi
Contamination
degree of
recommended
hydraulic oil
ISO18/13
Operating fluid
Anti-wear
hydraulic oil
HM46/HV46
Schematic of metering pump
P18H00030
Overall structure diagram of metering pump
1. T port
2. P port
3. L port
4. LS port
5. R port
P18H00031
1
2
4
3
5
Содержание CLG835H
Страница 2: ......
Страница 4: ...Contents January 24 2017 CLG835H...
Страница 6: ...1 2 General Information January 24 2017 CLG835H...
Страница 38: ...1 34 Machine Inspection Table January 24 2017 CLG835H...
Страница 154: ...2 116 Fault Diagnosis and Troubleshooting January 24 2017 Common fault code and troubleshooting CLG835H...
Страница 156: ...3 2 Power Train System January 24 2017 CLG835H...
Страница 214: ...3 2 Power Train System January 24 2017 CLG835H...
Страница 272: ...3 60 Testing and adjustment January 24 2017 Power Train Test CLG835H...
Страница 276: ...4 4 Hydraulic System January 24 2017 CLG835H...
Страница 296: ...4 24 Structure Function Principle January 24 2017 Work hydraulic system CLG835H Exploded view of control valve P18H00016...
Страница 297: ...4 25 January 24 2017 Structure Function Principle CLG835H Work hydraulic system Exploded view of control valve P18H00017...
Страница 308: ...4 36 Structure Function Principle January 24 2017 Work hydraulic system CLG835H Outline diagram of pilot valve P18H00027...
Страница 506: ...4 234 Fault Diagnosis and Troubleshooting January 24 2017 Common troubleshooting for brake system CLG835H...
Страница 552: ...6 2 Driver s Cab System January 24 2017 CLG835H...
Страница 606: ...6 56 Removal and Installation January 24 2017 Removal and installation of the engine hood torque mechanism CLG835H...
Страница 608: ...7 2 Structure January 24 2017 CLG835H...
Страница 662: ...8 4 Electrical System January 24 2017 CLG835H...
Страница 677: ...8 19 January 24 2017 Structure Function Principle CLG835H Power System P18E00014...
Страница 737: ...8 79 January 24 2017 Structure Function Principle CLG835H Audio system Audio system Audio system principle P18E00138...
Страница 756: ...9 2 Appendix January 24 2017 CLG835H...
Страница 757: ...9 3 January 24 2017 Schematic Diagram of Hydraulic System CLG835H Schematic Diagram of Hydraulic System...
Страница 758: ...9 4 January 24 2017 Schematic Diagram of Brake System CLG835H Schematic Diagram of Brake System...