What is the reason why agricultural excavator walking boring?
Posted: Oct 31st, '24, 22:00
Agricultural excavatorwalking boring is the most common fault in the process of walking, sometimes unilateral failure sometimes both sides of the walking failure, leading to this failure generally have the following reasons:
1, the central rotary joint leakage, oil leakage.
The central rotary joint of the agricultural excavatoris an important hub for the hydraulic circuit of the upper body to connect to the chassis. When the sealing effect of the central rotary joint is poor, internal leakage or oil leakage will occur. The hydraulic oil driving the hydraulic motor cannot fully reach the hydraulic motor, and part of the hydraulic oil returns to the tank through other circuits, resulting in pressure loss in the hydraulic circuit, resulting in the hydraulic motor being boring.
2. Internal leakage and failure of walking motor.
The walking system is composed of walking balance valve, walking safety valve, walking speed switching valve, walking speed switching cylinder, walking brake cylinder, throttle valve and walking motor. When a certain valve group produces internal leakage, it will cause pressure loss in the hydraulic circuit of the walking system, resulting in boring walking.
3, hydraulic pump pressure is insufficient, pump control loop failure.
Hydraulic main pump pressure is also an important cause of walking boring, resulting in hydraulic pump pressure is mainly due to pump leakage, pump control system failure, resulting in pressure loss.
4, the main control valve internal leakage.
The main control valve is a multi-spool valve group, when the working time is long or the hydraulic oil contains impurities, it will lead to spool wear, when the hydraulic circuit spool wear of the control walking system is too large, there will be internal leakage, resulting in hydraulic circuit pressure loss, resulting in walking boring.
5, the pilot system secondary pressure oil pressure is insufficient.
The secondary pressure oil of the pilot system is output by the proportional control valve. When the walking operation valve of the cab of the agricultural excavatorhas internal leakage and stuck, the pilot secondary pressure oil will be insufficient, and the valve spool of the main control valve can not be pushed in place, resulting in the flow rate of the hydraulic circuit of the walking system will be reduced.
The above points are the main reasons for the boring walking of agricultural excavators, and when they encounter similar failures in the future, the construction workers can solve them themselves.
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contact # : +86 158 6218 2088
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1, the central rotary joint leakage, oil leakage.
The central rotary joint of the agricultural excavatoris an important hub for the hydraulic circuit of the upper body to connect to the chassis. When the sealing effect of the central rotary joint is poor, internal leakage or oil leakage will occur. The hydraulic oil driving the hydraulic motor cannot fully reach the hydraulic motor, and part of the hydraulic oil returns to the tank through other circuits, resulting in pressure loss in the hydraulic circuit, resulting in the hydraulic motor being boring.
2. Internal leakage and failure of walking motor.
The walking system is composed of walking balance valve, walking safety valve, walking speed switching valve, walking speed switching cylinder, walking brake cylinder, throttle valve and walking motor. When a certain valve group produces internal leakage, it will cause pressure loss in the hydraulic circuit of the walking system, resulting in boring walking.
3, hydraulic pump pressure is insufficient, pump control loop failure.
Hydraulic main pump pressure is also an important cause of walking boring, resulting in hydraulic pump pressure is mainly due to pump leakage, pump control system failure, resulting in pressure loss.
4, the main control valve internal leakage.
The main control valve is a multi-spool valve group, when the working time is long or the hydraulic oil contains impurities, it will lead to spool wear, when the hydraulic circuit spool wear of the control walking system is too large, there will be internal leakage, resulting in hydraulic circuit pressure loss, resulting in walking boring.
5, the pilot system secondary pressure oil pressure is insufficient.
The secondary pressure oil of the pilot system is output by the proportional control valve. When the walking operation valve of the cab of the agricultural excavatorhas internal leakage and stuck, the pilot secondary pressure oil will be insufficient, and the valve spool of the main control valve can not be pushed in place, resulting in the flow rate of the hydraulic circuit of the walking system will be reduced.
The above points are the main reasons for the boring walking of agricultural excavators, and when they encounter similar failures in the future, the construction workers can solve them themselves.
Choose BONOVO for high-quality, customizable brush cutters for skid steers with fast delivery. Contact us today to discover how our superior products can enhance your land management tasks!
for more info just visit our website at www.bonovogroup.com
contact # : +86 158 6218 2088
email : sales@bonovogroup.com