冷再生机作为道路施工的关键设备，租赁使用中若突发故障，需遵循 “停机、快速诊断、分级处理” 的原则，通过规范流程将故障影响降，保障施工进度。

　　As a key equipment for road construction, if there is a sudden malfunction during the rental and use of the cold recycling machine, the principle of "safe shutdown, rapid diagnosis, and graded treatment" should be followed, and the impact of the malfunction should be minimized through standardized processes to ensure construction progress.

　　故障发生时，操作人员应立即按下急停按钮，切断设备动力源，防止异常运转导致部件损伤或事故。随后观察仪表盘报警信息（如发动机故障灯、液压压力异常提示），记录故障发生时的工作状态（转速、负载、作业模式），并用手机拍摄故障部位照片或视频，为后续排查保留原始资料。若故障伴随异常声响（如金属摩擦声、液压系统异响），需原地静置设备，避免强行启动扩大损伤。

　　When a malfunction occurs, the operator should immediately press the emergency stop button to cut off the power source of the equipment and prevent abnormal operation from causing component damage or safety accidents. Subsequently, observe the dashboard alarm information (such as engine malfunction light, hydraulic pressure abnormal prompt), record the working status at the time of the fault occurrence (speed, load, operating mode), and take photos or videos of the faulty area with a mobile phone to preserve the original data for subsequent troubleshooting. If the fault is accompanied by abnormal sounds (such as metal friction sound, hydraulic system abnormal sound), the equipment should be left stationary in place to avoid forcibly starting and expanding the damage.

　　初步判断故障类别是解决问题的核心。若为动力系统故障（发动机无法启动或怠速不稳），先检查燃油供应（油箱油量、油路是否堵塞）、电路连接（蓄电池电量、启动电机线束是否松动），使用万用表测量电压是否达标（启动电压应≥12V）。若属液压系统故障（压力不足、动作卡顿），查看液压油液位（需在标尺上下限之间）、油质（乳化或浑浊需更换），检查油管接头是否漏油（轻微渗漏可紧固卡箍，严重漏油需更换密封件）。刀具系统故障（切削无力、刀片异常磨损）时，停机后手动转动刀辊，检查刀片固定螺栓是否松动（扭矩需达到厂家规定值，如 80-100N?m）、刀座是否变形，若刀片磨损超过厚度的 1/3，需整组更换以保证切削均匀性。

　　The initial determination of the fault category is the core of solving the problem. If it is a power system malfunction (the engine cannot start or the idle is unstable), first check the fuel supply (fuel tank level, whether the oil circuit is blocked), circuit connections (battery level, whether the starter motor harness is loose), and use a multimeter to measure whether the voltage meets the standard (starting voltage should be ≥ 12V). If it is a hydraulic system failure (insufficient pressure, lagging action), check the hydraulic oil level (between the upper and lower limits of the scale), oil quality (emulsified or turbid, need to be replaced), and check whether the oil pipe joint leaks oil (slight leakage can be tightened with clamps, severe oil leakage needs to be replaced with seals). When the tool system malfunctions (weak cutting, abnormal blade wear), manually rotate the tool roller after stopping the machine to check if the blade fixing bolts are loose (the torque should reach the manufacturer's specified value, such as 80-100N? M) and if the tool holder is deformed. If the blade wear exceeds one-third of the thickness, the entire set needs to be replaced to ensure cutting uniformity.

　　对于电气控制系统故障（操作面板无响应、传感器数据异常），先重启控制模块（断开蓄电池负极 30 秒后重新连接），若故障依旧，对照设备电路图，用试电笔或示波器检测开关、继电器、传感器的信号传输是否正常。例如，行走编码器故障可能导致速度控制失灵，需清洁编码器表面灰尘并检查连接线是否破损。

　　For electrical control system faults (unresponsive operation panel, abnormal sensor data), restart the control module first (disconnect the negative terminal of the battery for 30 seconds and reconnect it). If the fault persists, refer to the equipment circuit diagram and use a test pen or oscilloscope to check whether the signal transmission of switches, relays, and sensors is normal. For example, a malfunction of the walking encoder may result in a failure of speed control, and it is necessary to clean the dust on the surface of the encoder and check if the connecting wires are damaged.

　　当现场人员无法自行解决时，及时联系租赁方的技术支持团队，清晰描述故障现象、发生时间及已做的排查步骤，必要时通过视频连线远程指导。若需现场维修，要求对方携带常用备件（如滤芯、密封圈、刀片），缩短维修时间。维修人员到达后，配合其拆解设备（如拆卸液压泵护罩、打开电控箱），提供故障记录和操作日志，协助定位问题根源。修复后，需进行空载试运行（怠速运转 10 分钟）和负载测试（以 50% 功率作业 30 分钟），确认各系统运行参数（如发动机转速、液压油温、刀具转速）符合出厂标准（油温不超过 80℃，转速波动 ±5% 以内）。

　　When on-site personnel are unable to solve the problem on their own, promptly contact the technical support team of the lessee, clearly describe the fault phenomenon, occurrence time, and the troubleshooting steps that have been taken, and provide remote guidance through video connection if necessary. If on-site repair is required, the other party is required to bring commonly used spare parts (such as filter cartridges, sealing rings, blades) to shorten the repair time. After the maintenance personnel arrive, cooperate with them to disassemble the equipment (such as dismantling the hydraulic pump cover and opening the electrical control box), provide fault records and operation logs, and assist in locating the root cause of the problem. After repair, a no-load test run (idling for 10 minutes) and a load test (operating at 50% power for 30 minutes) are required to confirm that the operating parameters of each system (such as engine speed, hydraulic oil temperature, tool speed) meet the factory standards (oil temperature not exceeding 80 ℃, speed fluctuation within ± 5%).

　　预防故障重于事后维修，租赁期间应严格执行设备保养规程：每日作业前检查润滑点（如轴承、铰接点需加注锂基润滑脂），每 50 小时更换液压油滤芯（精度≤25μm），每 100 小时检查皮带张紧度（用手指按压中部下垂量≤15mm）。操作人员需接受培训，熟悉设备报警代码含义（如 E01 代表发动机过热，E03 代表液压过载），避免因操作不当（如过载启动、未预热直接高负荷作业）引发故障。施工环境恶劣时（如粉尘多、湿度大），需增加关键部件防护（给电控箱加装防尘罩，液压管路包裹保温套），并准备备用刀片、保险丝等易损件，确保小故障可现场快速更换。

　　Preventing faults is more important than repairing them afterwards. During the lease period, equipment maintenance procedures should be strictly followed: check the lubrication points before daily operation (such as bearings and hinge points, which need to be filled with lithium based grease), replace the hydraulic oil filter element every 50 hours (accuracy ≤ 25 μ m), and check the belt tension every 100 hours (press the middle part with your fingers to ensure that the sag is ≤ 15mm). Operators need to receive professional training and be familiar with the meaning of equipment alarm codes (such as E01 representing engine overheating and E03 representing hydraulic overload), in order to avoid faults caused by improper operation (such as overload starting, direct high load operation without preheating). When the construction environment is harsh (such as high dust and humidity), it is necessary to increase the protection of key components (install dust covers on the electrical control box, wrap hydraulic pipelines with insulation sleeves), and prepare spare blades, fuses and other vulnerable parts to ensure that small faults can be quickly replaced on site.

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