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target="_blank" ></a>随着¿U‘技的进步,çŽîC»£æŒ–掘æœÞZ¸€èˆ¬éƒ½é‡‡ç”¨äº†æœºâ€”电—液一体化控制模式åQŒæˆ‘们在排除一些故障时åQŒè§£å†³çš„多是发动机—液压æ܇—分配阀—外部负èïLš„匚w…é—®é¢˜ã€‚一般在挖掘æœÞZ½œä¸šä¸­åQŒè¿™å‡ æ–¹é¢ä¸èƒ½åŒ¹é…ï¼Œ¾lå¸¸ä¼šè¡¨çŽîCؓåQšå‘动机转速下降,工作速度变慢åQŒæŒ–掘无力等ã€?br /> 1.发动æœø™{速下降:<br /> 首先要测试发动机本èín输出功率åQŒå¦‚果发动机输出功率大大低于额定功率åQŒå¦‚是在施工现场判断要从½Ž€å•çš„æ–ÒŽ³•å…¥æ‰‹åQŒé¦–先看燃æÑa滤芯是否堵塞åQŒç‡ƒæ²¹èµ\中是否有漏气的地方,燃æÑa泵中的柱塞,å–ähÑaå¤ß_¼Œå‡ºæÑa阀是否严重¼‚¨æŸåQŒç©ºæ°”æ×o芯进气是否通畅åQŒå¸¦æ¶¡è½®å¢žåŽ‹å™¨çš„发动机,涡轮增压器是否损坏,发动机是否快速高温,机æÑa¾_˜åº¦ä¸‹é™åQŒé€ æˆ¾~¸å£ž®é—­ä¸ä¸¥åŽ‹ç¾ƒæ¯”下降,是否¾~¸å¥—¾l„äšg¼‚¨æŸé€ æˆ¾~¸å†…严重串气åQŒå‘动机气门ž®é—­ä¸ä¸¥½{‰ï¼Œ˜q™äº›éƒ½æ˜¯ä¸¥é‡å½±å“å‘动机功率的因素ã€?如果排除了发动机本èín输出动力不èƒö外,ž®Þp¦è€ƒè™‘液压æ³ëŠš„‹¹é‡å’Œå‘动机的输出功率的匚w…é—®é¢˜äº†ã€?br /> 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