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美国康明斯 NT855发动机为直 列、水冷、四行程、顶 阀直接喷射、涡轮增压式六缸柴油机,额定功率162kW(1800r/min),用于多种工程机械上,常见的故障及其原因如下: 一、冷却系统 1.水温过高 故障原因: ①水温表或感应塞损坏,显示不准确。 ②节温器损坏,不能形成大循环。 ③风扇损坏或风扇皮带松,排风量不够。 ④水箱内沉积多、散热管堵塞或上下水室不畅通。 ⑤发动机和水箱外表面尘土过多,影响散热效率。 ⑥水泵叶轮磨损或损坏。
US Cummins NT855 engine for inline, water-cooled, four-stroke, direct injection valve, turbocharged six-cylinder diesel engine, rated power 162kW (1800r / min), for a variety of construction machinery, common faults and their causes are as follows: First, the cooling system 1. The water temperature is too high Fault causes: ① water temperature meter or sensor damage, showing inaccurate. ② thermostat damage, can not form a large cycle. ③ fan damage or fan belt loose, exhaust volume is not enough. ④ tank deposition, heat pipe plugging or up and down the water chamber is not smooth. ⑤ too much dust on the outer surface of the engine and tank, affecting cooling efficiency. ⑥ pump impeller wear or damage.