Hydraulic line repair data

Hitachi EX1200-7 Grease Lines Hose List

Hitachi EX1200-7 Grease Lines currently has 7 published hose records for checking length, hose specification, left and right fittings, part number, and diagram pipe number.

Hoses: 7 records
Full specifications: 7 records
Systems: 1 systems
Length range: 450–3,750 mm

Hose repair details

Hose Length and Fitting List

Diagram Pipe No. 25

4158042

Installation route: Arm-cylinder grease lineOriginal Chinese: 小臂油缸黄油管

Length: 650 mm
Specification: DN6;1SN-4;7MPa
Left fitting: 英制内螺纹30°外锥
Right fitting: 英制内螺纹30°外锥

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Diagram Pipe No. 22

4722325

Installation route: 过渡阀块(黄油)~过渡阀块(大臂下)

Length: 3,750 mm
Specification: DN5;2层纤维-3;14MPa
Left fitting: 美制内螺纹37°内锥
Right fitting: 90°公制卡套式

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Diagram Pipe No. 24

4022547

Installation route: 大臂油缸黄油管

Length: 450 mm
Specification: DN6;1SN-4;7MPa
Left fitting: 英制内螺纹30°外锥
Right fitting: 英制内螺纹30°外锥

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Diagram Pipe No. 31

4015464

Installation route: 小臂销黄油管

Length: 1,000 mm
Specification: DN6;1SN-4;7MPa
Left fitting: 英制内螺纹30°外锥
Right fitting: 英制内螺纹30°外锥

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Diagram Pipe No. 24

4022547

Installation route: Arm-cylinder grease lineOriginal Chinese: 小臂油缸黄油管

Length: 450 mm
Specification: DN6;1SN-4;7MPa
Left fitting: 英制内螺纹30°外锥
Right fitting: 英制内螺纹30°外锥

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Diagram Pipe No. 9

4435078

Installation route: 分流阀(黄油)~过渡阀块(黄油)

Length: 2,950 mm
Specification: DN6;1SN-4;20.5MPa
Left fitting: 美制内螺纹37°内锥
Right fitting: 美制内螺纹37°内锥

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Diagram Pipe No. 24

4022547

Installation route: 小臂销黄油管

Length: 450 mm
Specification: DN6;1SN-4;7MPa
Left fitting: 英制内螺纹30°外锥
Right fitting: 英制内螺纹30°外锥

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Based on current published data

Common Repair Questions

Questions appear only when a published record or linked PDF page provides the answer.

How many hoses are currently listed for Hitachi EX1200-7 Grease Lines?

There are 7 published records. 7 include a length, both end fittings, and a part number or diagram pipe number.

What is the hose length range for Hitachi EX1200-7 Grease Lines?

Based on published records with valid lengths, the range is 450–3,750 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Hitachi EX1200-7 Grease Lines?

The most frequent raw specifications in the current published records are: DN6;1SN-4;7MPa (5 records), DN5;2层纤维-3;14MPa (1 records), DN6;1SN-4;20.5MPa (1 records). Verify the specification together with length, pressure, and fitting details.

How can I identify the left and right hose fittings for Hitachi EX1200-7 Grease Lines?

Each record keeps the left and right fitting descriptions separate. Current examples: 4158042: left 英制内螺纹30°外锥; right 英制内螺纹30°外锥; 4722325: left 美制内螺纹37°内锥; right 90°公制卡套式; 4022547: left 英制内螺纹30°外锥; right 英制内螺纹30°外锥. Open the exact part-number or pipe-number record; do not swap ends based on appearance alone.

Can I locate a Hitachi EX1200-7 Grease Lines hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 25 (4158042), Pipe No. 22 (4722325), Pipe No. 24 (4022547), Pipe No. 31 (4015464). Open a record to compare its installation position with the linked manual page.