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    The walking system of the Concrete Laser Leveling is one of its core functions. Once it malfunctions, it will directly affect the construction efficiency and the flatness of the floor. The following is a systematic review of the diagnostic steps and solutions for abnormal walking systems for you. First, make a preliminary classification based on different fault phenomena: Completely unable to walk: The leveling machine is completely stationary. Weak walking/Slow speed: Can walk, but lacks power and cannot reach the set speed. Unstable walking/shaking: Stammering during walking or severe shaking of the body. Abnormal walking on one side: One side is normal, while the other side is motionless, weak or in the wrong direction. Walking deviation: Unable to walk in a straight line, automatically veers to one side. Follow the principle of conducting the investigation from simple to complex and from the outside to the inside. Emergency stop switch and mode selection Diagnosis: Check whether the emergency stop switch on the operation console or remote control has been pressed and whether the working mode (such as manual/automatic) has been selected correctly. Solution: Release the emergency stop switch and select the correct working mode. Power supply and line connection: Diagnosis: Check whether the main power switch and battery terminals are loose, corroded or have insufficient power (for battery-powered models). Check whether the plugs at the main control cabinet and the walking motor are loose. Solution: Tighten all terminal blocks, clean the battery terminals, charge the battery or replace it. Make sure all the plugs are securely connected. Jamming of mechanical transmission components Diagnosis: Check whether the walking wheels (tracks), drive shafts, chains or gears are jammed by solidified cement, crushed stones or other foreign objects. ** Solution ** : Immediately stop the machine and thoroughly clear all obstructions. Check the lubrication condition of the chain or gearbox and add or replace the specified grease if necessary. If there are no issues found during the initial inspection, focus on checking the hydraulic system. Hydraulic oil level and oil quality Diagnosis: Insufficient hydraulic oil can cause the pump to run dry, resulting in weak or no movement during movement. Deteriorated oil (turning black, foaming, or having metal shavings) can damage hydraulic components. Solution: Check the oil level while the machine is shut down and replenish it to the specified mark. If the oil quality is substandard, the hydraulic oil and filter element of the original factory-specified model must be completely replaced. Walking motor and drive pump Diagnosis (Unilateral abnormality) : If only one side of the walking is abnormal, you can try to swap the hydraulic pipelines of the walking motors on both sides. If the fault phenomenon then shifts to the other side, it indicates that the walking motor or pump on the original side is faulty. Solution: Please contact professional maintenance personnel. It may be necessary to inspect or replace the walking motor, variable pump or related control valves. This job requires professional knowledge and tools. Do not disassemble it by yourself. Hydraulic system pressure Diagnosis: Use a hydraulic pressure gauge to check whether the overflow pressure of the main safety valve and the walking circuit of the system has reached the specified value. Low pressure can lead to weakness when walking. Solution: Have a professional technician adjust the corresponding relief valve to the standard pressure. Do not adjust it at will, otherwise the hydraulic system may be damaged. For laser leveling machines that adopt advanced control systems. Laser control system Diagnosis: Check whether the laser transmitter is working properly and whether the signal is stable. Check whether the laser receiver on the leveler is clean and firmly installed. Signal loss or instability can cause the machine to move in confusion or stop. Solution: Ensure that the laser transmitter is stably set up and the signal covers the entire construction area. Clean the laser receiver rod and sensor head. Recalibrate the system. Control module and sensor Diagnosis: Observe whether there are any fault code alarms on the control panel. Check whether the walking speed sensor, Angle sensor, etc. are damaged or the circuit is disconnected. Solution: Check the cause according to the fault code manual. Check and plug in the sensor wiring tightly. Replace it if any damage is found. Remote control/line controller Diagnosis: Weak signal, insufficient battery power or internal faults of the remote control can cause instructions to fail to be sent correctly, resulting in abnormal walking. Solution: Check the battery level of the remote control and try frequency matching or restarting. If possible, switch to the line control mode for comparative testing to determine whether the problem lies with the machine or the remote control. Fault phenomenon Possible reasons Solution Completely unable to walk 1. The emergency stop switch is activated 1. Release the emergency stop switch 2. Main power supply disconnected/Battery discharged 2. Check and connect the power supply/charge 3. Failure of the main hydraulic pump 3. Overhaul the main pump 4. Control signal interruption 4. Check the remote control, receiver and wiring Weakness in walking The hydraulic oil level is too low or the oil quality is poor 1. Add or change the oil 2. The hydraulic filter element is clogged 2. Replace the hydraulic filter element 3. System pressure is too low 3. Adjust the pressure by professionals 4. Leakage inside the walking motor or pump 4. Inspect or replace hydraulic components One side not moving/weak The track/wheel on this side is mechanically jammed 1. Remove foreign objects 2. The walking motor on this side is faulty 2. Swap the hydraulic pipelines for testing and then carry out the repair after confirmation 3. The valve core of the control valve on this side is stuck or damaged 3. Clean or replace the valve assembly 4. The speed sensor on this side is faulty 4. Check or replace the sensor Shaking/Unstable walking There is air in the hydraulic system 1. Perform the exhaust operation 2. The signal of the flow/speed sensor is unstable 2. Check the sensors and circuits 3. Hydraulic oil contamination leads to discontinuous valve core operation 3. Replace the hydraulic oil and filter element Walking off course 1. The laser signal is inaccurate Recalibrate the laser system 2. The tension of the tracks on both sides is inconsistent 2. Adjust the tracks to the same tension 3. The bearing of one of the walking wheels is damaged 3. Replace the damaged bearing 4. Calibration error of the control system 4. Re-perform the walking calibration Before starting work every day, check the hydraulic oil level, battery power, whether there are any foreign objects in the walking mechanism, and whether all sensors are clean. Regular maintenance: Replace the hydraulic oil and filter elements strictly in accordance with the maintenance manual, and lubricate all bearings and chains. Standard operation: Avoid driving at high speed on overly bumpy or foreign object surfaces, and turn smoothly. Timely cleaning: After each day's construction, it is essential to thoroughly clean the machine before the concrete solidifies, especially the traveling wheels and sensor parts. Important Note: The hydraulic and control systems are highly precise. When issues involve the disassembly of internal components and pressure adjustment, it is strongly recommended to contact the equipment manufacturer or an authorized professional service engineer for handling to avoid causing greater damage or safety accidents.   Note: The parameters provided in this document are for reference only and are not mandatory. Due to differences in technical characteristics between different brands and models of laser levelers, please consult the manufacturer for a suitable solution before actual operation. This reference document assumes no responsibility for any issues arising from failure to follow the manufacturer's instructions.    

The use and promotion of concrete paving and leveling machines has ended the traditional construction of using mortar to punch piers, finding elevations, laying out side formwork, dump trucks to transport concrete, manual preliminary leveling, scraping with flat plates, and vibrating concrete with vibrators. Then a special double-row steel pipe is used to vibrate and tamp and level it back and forth. So how much do you know about this device? Next, I will give you a detailed introduction to the basic configuration of the concrete paving and leveling machine equipment. Let's learn more about it together. The basic configuration of concrete paving and leveling machine equipment is introduced in detail as follows: 1. The laser leveling machine uses precision laser technology, closed-loop control technology and a highly precise integrated hydraulic system, and is realized under the automatic control of a microcomputer. This is what distinguishes it from other floor construction techniques. 2. The concrete paving and leveling machine relies on a hydraulically driven leveling mechanism and cooperates with the laser system and computer control system to complete the leveling work while automatically leveling. 3. The laser transmitter used by the concrete leveling machine to control the ground elevation is independently arranged, and the floor elevation will not produce cumulative errors. Compared with traditional methods, the construction joints on the floor can be greatly reduced, and the subsequent maintenance costs of the ground and the use of formwork are also greatly reduced. 4. The laser transmitter equipped with the concrete paving and leveling machine can automatically control both the plane and the two-way slope. It is also completed by the laser system, microcomputer system, hydraulic system, and mechanical and electronic system. For complex-shaped floors with high requirements such as drainage, a three-dimensional special-shaped ground treatment system can also be selected. 5. Using solid anti-puncture tires, paving and leveling operations can be performed directly on the steel mesh. 6. The concrete paving and leveling machine comes with a high-pressure cleaning system, which greatly facilitates the cleaning of the bonded concrete on the machine, ensures the normal use of the machine, and extends the service life of the machine. Scope of application: Laser leveling machines are developed based on the increasing demand for ground quality such as strength, flatness, and levelness in modern industrial plants, large shopping malls, warehouses, and other large-area cement concrete floors. Indoor floors: ① Modern large-scale industrial plants, workshops, and automated three-dimensional warehouses. ②. Clean factories for electronic appliances, food materials, medicine, etc. ③, Large-scale warehouse supermarkets, logistics centers, convention and exhibition centers, etc. Outdoor floors: ①, terminals, container yards, freight yards, ②, airport runways, aprons, parking lots, ③, squares, residential floors, municipal roads, etc.

Why has the concrete laser leveling machine become the mainstream leveling equipment? Concrete laser leveling machine is usually used in large-area floor construction, the ground elevation is easy to control, and the error of ground flatness is extremely small; due to the use of laser point alignment, the entire floor only needs 1-2 reference point elevations, which can reduce many factors. The error caused by the benchmark points. The laser transmitter is arranged independently, and the floor elevation is always controlled by the plane formed by the rotating beam emitted by the laser transmitter. As long as the laser transmitter is not disturbed, no matter where the concrete laser leveling machine goes, it can ensure the smoothness after paving. The overall elevation of the ground is not affected, so that large-area one-time paving can be realized in the floor construction, and the levelness and flatness of the entire floor can be guaranteed. The elevation of the concrete laser leveling machine is controlled by the laser measurement and control system in real time. There is no need to pull the control line for leveling, and there is no need for supporting side formwork to control the ground elevation, thus avoiding the vibration caused by the formwork (channel steel) during the construction process. The elevation error also reduces the elevation error caused by the traditional artificial block formwork. Now in some precision instruments, equipment production factories, aircraft manufacturing and maintenance workshops, etc., the quality of the floor is very high. It is mainly reflected in the high requirements on the flatness of the floor, and the floor surface is required to be wear-resistant, durable in use, and the maintenance cycle is extended. For example, in some large-scale foreign-invested logistics warehouses, in order to make full use of the land, the shelves in the warehouse are stacked very high, and some even reach tens of meters. The center of gravity is skewed and unstable, and the impact during driving will cause the forklift to shake, and there is a danger of the cargo being scattered or the forklift overturning. At the same time, the impact of the bumps of multiple forklifts on the ground will cause an earthquake effect, which is very unsafe for high-level cargo stacking. . Floor hollowing, cracking, and non-wear resistance will increase the number of floor maintenance, increase floor maintenance costs, and cause downtime losses; floor cracking will increase maintenance costs, and may also lead to abandonment or reduced utilization. For high-precision instruments and equipment production lines, if the floor is uneven, it will affect the installation of the equipment, and the gap between the equipment base and the ground may cause slight vibration during the operation of the equipment, which not only affects the life of the equipment, but also affects the product quality. For the above-mentioned floors with special requirements, especially large-scale entire floors, traditional construction techniques and methods are difficult to meet the requirements. For example, in terms of construction techniques, advanced construction equipment is used: concrete laser leveling machine, double-disc grinding machine , Dry cutting can not only shorten the construction period, but also ensure the construction quality to a large extent. This high-grade ground can guarantee normal use for more than 20 years, which can greatly reduce the use and maintenance costs. With the increase of large-area and high-quality floor projects such as modern industrial plants, convention centers, squares, airports, etc., the application of concrete laser leveling machines in large-area floor construction will increase.