RSC45C Reach Stacker Troubleshooting
Release time:
2025-11-27
Author:
Source:
Failure Analysis & Troubleshooting: 1. The descending solenoid valve is not energized. 2. The main valve’s proportional solenoid valve is not energized. 3. The handle is malfunctioning and no signal is being output. 4. The descending solenoid valve on the pitch valve block is damaged, or its damping orifice is damaged. 5. The spool of the main valve is stuck. 6. The controller is faulty.
1. The electromagnetic valve had electricity.
2. The main valve electric proportional solenoid valve must not be energized.
3. Handle failure, no signal output.
4 and the decrease of the pitch valve block solenoid valve damage or damage to the damping hole.
5. The hairpin of the main valve’s valve core.
6. Controller failure. Troubleshooting Procedure: 1. First, check the input and output signals on the display. The joystick signal and the controller output signal are both normal. 2. Use a multimeter to measure the energization status of the left and right lowering solenoid valves; the energization status is normal. 3. Measure the energization status of the main proportional valve; the energization status is normal. 4. Turn on the manual override switch and operate the equipment’s boom lowering function. The equipment still cannot lower. 5. Monitor the pressure on both the left and right sides during lowering; when lowering, the right-side cylinder shows pressure buildup, preventing the equipment from lowering. 6. Manually and slowly loosen the overflow valves on both the left and right sides to completely relieve the pressure in the boom cylinder. 7. Disassemble the solenoid valve and damping orifice on the right pitch valve block for inspection and cleaning, then reassemble them. The fault persists. 8. Disassemble the entire valve block assembly, then remove and thoroughly clean each hydraulic component before reinstalling them onto the equipment. After retesting, the equipment operates normally.
1. The first step involves observing the display and handling the input and output signals. After processing the signal, the controller’s output signal is normal.
2. A multimeter is used to measure the left and right sides of the solenoid valve; if the readings are stable, it’s normal.
3. Electric proportional valve to the main valve. To normal condition.
4. Open the mandatory control switch and operate the equipment boom to lower movements. The equipment still cannot fall.
5. Testing the pressure on the down, left, and right sides—when the oil cylinder’s pressure-out operation is performed on the right side, it must not fall.
6. Manually and slowly loosen the left and right sides of the overflow valve to completely release the pressure in the large-arm oil cylinder.
7. Remove the right-side check electromagnetic valve, damping hole from the pitch valve block, and reinstall them after cleaning. The fault phenomenon persists.
8. Remove the entire valve block assembly, then disassemble and clean each hydraulic component before reassembling them onto the device. The test equipment will function properly again.
Failure Summary/Principle & Experience Summary: This failure is a hydraulic system malfunction. We kindly remind customers to perform timely maintenance on the hydraulic system, replacing the relevant filters and hydraulic oil to prevent recurrence of this type of failure. When troubleshooting such hydraulic failures, it is crucial to ensure that the cylinder pressure is completely relieved to avoid any potential hazards.The fault of hydraulic system failure, reminding customers timely maintenance of hydraulic system. Replacement of correlation filters and hydraulic oil, lest appear again fault type. It is important to note that at the time of excluding such hydraulic failure, the cylinder pressure must be completely relieved to avoid danger.
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