瓦斯发电机启动前的全面检查是保障安全稳定运行的关键，需覆盖燃料、电气、机械及安全系统，排查隐患。

　　A comprehensive inspection before starting the gas generator is key to ensuring safe and stable operation, covering fuel, electrical, mechanical, and safety systems, and identifying potential hazards.

　　燃料系统需确保供应稳定纯净。检查瓦斯管路连接，用肥皂水检测接口是否泄漏，有气泡需紧固或换密封件。清理过滤器内杂质和积水，避免气缸磨损。调节瓦斯压力至 5-15kPa，压力不稳需调整减压阀或检查气源。检测瓦斯浓度（甲烷 30%-90%），过高或过低需调整，防止爆震或熄火。

　　The fuel system needs to ensure stable and pure supply. Check the connection of the gas pipeline, use soapy water to detect if there is any leakage at the interface, and tighten or replace the sealing components if there are bubbles. Clean up impurities and accumulated water in the filter to avoid cylinder wear. Adjust the gas pressure to 5-15kPa. If the pressure is unstable, adjust the pressure reducing valve or check the gas source. Detect gas concentration (methane 30% -90%), adjust if it is too high or too low to prevent detonation or flameout.

　　电气系统聚焦电路与设备状态。查蓄电池电量（电压 12V 以上），清洁电极桩头防氧化。紧固接线端子，确保电缆绝缘完好、接地可靠（电阻＜4Ω）。检查控制屏仪表指示灯，测试启动电机运转，确保无卡滞或异响。

　　The electrical system focuses on the status of circuits and equipment. Check the battery level (voltage above 12V), clean the electrode pile head to prevent oxidation. Tighten the wiring terminals to ensure that the cable insulation is intact and the grounding is reliable (resistance<4 Ω). Check the indicator lights on the control panel and test the operation of the starter motor to ensure there is no jamming or abnormal noise.

　　机械部件检查关乎发动机运行。润滑油需油位达标、油质清澈，变质需更换，避免混用不同品牌。冷却液液位达水箱 2/3 以上，查泄漏，寒冷地区需确认冰点符合要求。皮带松紧度适中（按压挠度 10-15mm），过松过紧均需调整。

　　Mechanical component inspection is related to engine operation. Lubricating oil should meet the oil level standard and have clear oil quality. If it deteriorates, it should be replaced to avoid mixing different brands. If the coolant level reaches more than 2/3 of the water tank, check for leaks. In cold regions, it is necessary to confirm that the freezing point meets the requirements. The tightness of the belt is moderate (with a pressing deflection of 10-15mm), and adjustments are needed for both too loose and too tight.

　　安全与辅助系统不可忽视。测试瓦斯泄漏报警装置，确保声光报警及电磁阀切断功能正常。检查排气管通畅、消声器完好，防排气背压过高或火灾。通风系统需正常运行（每小时换气 10-20 次），清理发动机周围易燃物。

　　Safety and auxiliary systems cannot be ignored. Test the gas leak alarm device to ensure that the sound and light alarm and solenoid valve cut-off functions are normal. Check that the exhaust pipe is unobstructed, the muffler is intact, and prevent excessive exhaust back pressure or fire. The ventilation system needs to operate normally (10-20 air changes per hour) and clean flammable materials around the engine.

　　最后确认操作规范与环境。检查转速调节旋钮位置，确保机房无明火、无关设备关闭。首次启动或长期停用需手动盘车 2-3 圈，排查卡滞。操作人员戴防护装备，站在安全位置应对突发情况。

　　Finally confirm the operating standards and environment. Check the position of the speed adjustment knob to ensure that there are no open flames in the machine room and that unrelated equipment is turned off. For the first start-up or long-term shutdown, manual turning is required for 2-3 turns to check for jamming. Operators should wear protective equipment and stand in a safe position to respond to emergencies.

　　以上检查可降低启动故障概率，保障设备运行与人员安全。

　　The above checks can reduce the probability of startup failures and ensure equipment operation and personnel safety.

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