安縣晴空濾芯廠生產的液壓油濾芯保養方法如下：

1.換前先放掉原有液壓油，檢查回油濾芯，吸油濾芯，先導濾芯，看是否附有鐵屑銅屑或其他雜質，有的話可能有液壓元件故障，檢修排除后，清洗系統。

2.換液壓油時須同時更換所有液壓油濾芯(回油濾芯，吸油濾芯，先導濾芯)，否則相當于沒換。

3.辨別液壓油標號，不同標號、不同品牌的液壓油不混用，可能會起反應變質產生絮狀物。推薦用該挖掘機指定用油。

4.加油前必須先裝上吸油濾芯，吸油濾芯罩著的管口直接通向主泵，進了雜質輕則加速主泵磨損，重則打泵。

5.加油至標準位置，液壓油箱上一般都有油位表，看液位表。注意停放方式，一般是所有油缸全部收回，即小臂、鏟斗完全伸出并落地。

6.加完油后注意主泵要排空氣，否則輕則暫時全車無動作，主泵異響(空氣音爆)，重則氣穴損壞主泵。排空氣方法是直接在主泵頂部松開管子接頭，直接加滿即可固安縣晴空濾芯廠

固安縣晴空濾芯廠賀德克濾芯采用德國進口過濾玻纖材料加工，技標如下：

材料代號G，E 濾芯壓塌、破裂耐受力按照ISO 2941：30bar 210bar(僅用材料代號H，F 濾芯壓塌、破裂耐受力按照ISO 2941：   于高壓過濾器) HYDAC賀德克濾芯

HYDAC賀德克濾芯0030D020P，0030D025W，0030D010BN，0030D05BN/HC,0030D003BN3HC，0060D020P，0060D025W，0060D010BN，0060D005BN/HC，0060D003BN3HC，0110D020P，0110D025W 01100D010BN，0110D005BN/HC，0110D003BN3HC，0140D020P,0140D025W，01400D010BN，0140D005BN/HC，0140D003BN3HC,0160D020P，0030R020P，0030R025W，0030R010BN 0030R5BN/HC，濾芯0030R03BN3HC，0060R20P，0060R25W，0060R10BN,0060R05BN/HC，0060R03BN3HC，0110R20P，0110R25W，0110R010BN,0110R05BN/HC，0110R03BN3HC，0160R020P，0160R025W，0160R010BN，0160R005BN/HC，0160R003BN3HC，0240R020P，0160D025W，01600D010BN，0160D005BN/HC，0160D003BN3HC,0240D020P，0240D025W，02400D010BN，0240D005BN/HC,0240D003BN3HC，0280D020P，0280D025W，02800D010BN，0280D005BN/HC，0280D003BN3HC，0330D020P，0330D025W,03300D010BN，0330D005BN/HC，0330D003BN3HC，0480D020P,0480D025W，04800D010BN，0480D005BN/HC，0480D003BN3HC, 濾芯0500D020P，0500D025W，05000D010BN，0500D005BN/HC,0500D003BN3HC，0660D020P，0660D025W，06600D010BN 0660D005BN/HC，0660D003BN3HC，0990D020P，0990D025W,09900D010BN，0990D005BN/HC，0990D003BN3HC，0240R025W,0240R010BN，0240R005BN/HC，0240R003BN3HC，0330R020P,0330R025W，濾芯0330RD010BN，0330R005BN/HC，0330R003BN3HC,0660R020P，0660R025W，0600R010BN，0660R005BN/HC 0660R003BN3HC，0850R020P，0850R025W，0850R010BN，0850R005BN/HC，0850R003BN3HC，0950R020P，0950R025W,0950RD010BN，0950R005BN/HC，0950R003BN3HC,1300R020P，1300R025W，1300R010BN，1300R005BN/HC,1300R003BN3HC，1320R020P，1320R025W，1320R010BN,1320R005BN/HC，1320R003BN3HC，1700R20P，1700R025W 1700R010BN，1700R005BN/HC，1700R003BN3HC,2600R020P，2600R025W，2600R010BN，2600R005BN/HC,2600R003BN3HC替代進口HYDAC系列濾清器如下：0060D003BHHC  0060D003BN3HC  0060D003BNHC  0060D005BHHC  0060D005BN3HC 0060D005BNHC 0060D010BH3HC 0060D010BHHC  0060D010BN3HC 0060D010BNHC 0060D020BHHC 0060D020BN3HC 0060D020BNHC 0060D005BH3HC 0060D020BH3HC 0060D020BH3HCV 0060D003BHHC 0060D003BNHC 0060D005BHHC 0060D005BNHC 0060D010BHHC 0060D010BNHC 0060D020BHHC 0060D020BNHC 0110D003BH3HC 0110D003BH3HCV 0110D003BHHC 0110D003BN3HC 0110D003BNHC 0110D003BNHCV 0110D005BHHC 0110D005BHHCV 0110D005BN3HC 0110D005BNHC 0110D010BH3HC 0110D010BHHC 0110D010BN3HC 0110D010BNHC 0110D020BHHC 0110D020BN3HC 0110D020BNHC 0110D005BH3HC 0110D020BH3HC 0160D003BH3HC 0160D003BHHC 0160D003BN3HC 0160D003BNHC 0160D005BH3HC 0160D005BHHC 0160D005BN3HC 0160D005BNHC 0160D010BH3HC 0160D010BHHC 0160D010BN3HC 0160D010BNHC 0160D020BH3HC 0160D020BHHC 0160D020BN3HC 0160D020BNHC 0160MA003BN 0160MA005BN 0160MA010BN 0160MA020BN 0180MA003BN 0180MA005BN 0180MA010BN 0180MA020BN 02055751 02055907 02060838 2059434 2059435 2059436  2059437 2059438 2060608 2062446  2063951 0240D003BN3HC 0240D003BN3HCV 0240D003BNHC 0240D005BN3HC 0240D005BNHC 0240D010BN3HC 0240D010BNHC 0240D020BN3HC 0240D020BNHC 0330D005BHHC 0330D020BHHC 0330D003BHHC 0330D003BN3HC 0330D003BNHC 0330D005BN3HC 0330D005BNHC 0330D010BHHC 0330D010BNHC 0330D020BN3HC 0330D020BNHC 0660D005BHHC 0660D010BHHC 0660D020BHHC 0660D003BHHC 0660D003BN3HC 0660D003BNHC 0660D005BN3HC 0660D005BNHC 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