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  yuken高壓葉片泵pv2r23-65-60-f-reaa-41 pv2r1-14-l-lrl-42 2.不能泵送一臺sy5255型37m泵車在泵送完成，回攪拌站洗車時出現升速正常，正、反泵均不能泵送的故障。升速正常說明plc可以檢測到分動箱的速度，繼續檢查泵送點控q2.0、q2.1，點亮正常說明電控正常，應重點檢查液壓控制。(1)dt1/dt2電磁閥線圈是否短路、開路或電磁閥至plc線路是否有故障。(2)dt1電磁閥是否卡死，溢流閥溢流壓力建立不起來，dt2電磁閥閥芯若中位卡死會正、反泵失控。(3)力士樂柱塞泵泵是否有故障。檢查發現：(1)正、反泵觀察壓力表，壓力為0，無壓力。(2)檢測dt1電磁閥來電正常，后手動頂其閥芯，故障依舊。(3)懷疑溢流閥閥芯卡死，拆開頂蓋取出閥芯，閥芯上、下靈活正常;去掉彈簧，用5個代替，裝上閥芯蓋板，試機故障依舊，說明溢流閥正常。(4)繼續檢測，發現動臂架及縮回所有功能均不正常，速度能自動調節，同時發現3個壓力表均顯示零。說明故障應該在主泵壓力輸出部分。(5)分析泵送電磁閥來電正常，就可以說明行駛、泵送位置檢測應該正常，但是重新檢測：i2.5點亮，分動箱位置檢測接近開關點亮，汽車行駛、泵送隨駕駛室操作正常，說明行駛、泵送控制電路無故障。發動機升速正常，而無壓力，位置檢測又無故障，因此判定故障為分動箱內部撥叉出現問題。(6)拆開分動箱，檢查發現第三根主軸花鍵和齒輪損壞，更換后故障徹底排除。3.喇叭鳴響f-pv2r23-41-66-f-leaa-41pv2r13-19-76-f-reaa-4222 二、此類故障出現的常見的故障原因有以下這9點喲，分別是：1、挖掘機的壓力太高了;2、卸載閥壓力調的太高;3、挖掘機供油不夠;4、油冷卻故障;5、挖機油泵工作效率太低;6、油泵吸空了;7、挖掘機使用的油中有空氣混入;8、油泵超載工作;9、原件損壞或者是磨損了;

PV2R12-31-33-F-REAA-41臺灣油研液壓泵***

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PV2R12-31-33-F-REAA-41臺灣油研液壓泵***

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