Hydraulic line repair data

Hitachi ZX300LC-6N Boom Assembly Hose List

Coverage details

Hoses: 5 records
Full specifications: 5 records
Systems: 1 systems
Length range: 750–1,500 mm

Current system

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Hose repair details

Hose Length and Fitting List

Diagram Pipe No. 8

4622750

Installation route: Arm cylinder — leftOriginal Chinese: 小臂油缸左

Length: 750 mm
Specification: DN25;4SH-16;38.8MPa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封

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Diagram Pipe No. 15

4661965

Installation route: Boom cylinder — left 2 / left 3Original Chinese: 大臂油缸左2/左3

Length: 930 mm
Specification: DN19;4SH-12;42MPa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封

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Diagram Pipe No. 26

4272697

Installation route: Arm cylinder — leftOriginal Chinese: 小臂油缸左

Length: 900 mm
Specification: DN25;4SH-16;38.8MPa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封

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Diagram Pipe No. 13

4250078

Installation route: 大臂(后段)~铁管(铲斗油缸)

Length: 1,500 mm
Specification: DN19;4SP-12;35Mpa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封

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Diagram Pipe No. 7

4620800

Installation route: Arm cylinder — rightOriginal Chinese: 小臂油缸右

Length: 770 mm
Specification: DN25;4SH-16;38.8MPa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: 90° heavy-series flangeOriginal Chinese: 90°法兰-重型

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Diagram Pipe No. 13

4653833

Installation route: 大臂(后段)~铁管(铲斗油缸)

Length: 1,500 mm
Specification: DN19;4SH-12;42MPa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封

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Diagram Pipe No. 8

4639528

Installation route: 大臂左1

Length: 1,650 mm
Specification: DN25;4SH-16;38.8MPa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: 90° light-series flangeOriginal Chinese: 90°法兰-轻型

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Diagram Pipe No. 18

4628537

Installation route: Bucket cylinderOriginal Chinese: 铲斗油缸

Length: 1,650 mm
Specification: DN25;4SH-16;38.8MPa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: 90° heavy-series flangeOriginal Chinese: 90°法兰-重型

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Diagram Pipe No. 27

4252855

Installation route: Arm cylinder — rightOriginal Chinese: 小臂油缸右

Length: 920 mm
Specification: DN25;4SH-16;34.5Mpa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: 90° heavy-series flangeOriginal Chinese: 90°法兰-重型

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Diagram Pipe No. 6

4629062

Installation route: 大臂左3

Length: 1,450 mm
Specification: DN25;4SH-16;38.8MPa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: 90° light-series flangeOriginal Chinese: 90°法兰-轻型

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Diagram Pipe No. 28

4250889

Installation route: Bucket cylinderOriginal Chinese: 铲斗油缸

Length: 1,200 mm
Specification: DN19;4SP-12;34.5Mpa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: 美制内螺纹平面密封(90°法兰-轻型)

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Diagram Pipe No. 18

4634166

Installation route: Bucket cylinderOriginal Chinese: 铲斗油缸

Length: 2,300 mm
Specification: DN25;4SH-16;34.5Mpa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: 90° heavy-series flangeOriginal Chinese: 90°法兰-重型

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Diagram Pipe No. 17

4628536

Installation route: Bucket cylinderOriginal Chinese: 铲斗油缸

Length: 1,600 mm
Specification: DN19;4SH-12;42MPa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封

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Diagram Pipe No. 9

4438866

Installation route: 大臂左2

Length: 1,550 mm
Specification: DN25;1SN-16;8.8MPa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: 90° light-series flangeOriginal Chinese: 90°法兰-轻型

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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 ZX300LC-6N Boom Assembly?

There are 5 published records. 5 include a length, both end fittings, and a part number or diagram pipe number.

What is the hose length range for Hitachi ZX300LC-6N Boom Assembly?

Based on published records with valid lengths, the range is 750–1,500 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Hitachi ZX300LC-6N Boom Assembly?

The most frequent raw specifications in the current published records are: DN25;4SH-16;38.8MPa (3 records), DN19;4SH-12;42MPa (1 records), DN19;4SP-12;35Mpa (1 records). Verify the specification together with length, pressure, and fitting details.

How can I identify the left and right hose fittings for Hitachi ZX300LC-6N Boom Assembly?

Each record keeps the left and right fitting descriptions separate. Current examples: 4622750: left American female thread, flat-face seal; right American female thread, flat-face seal; 4661965: left American female thread, flat-face seal; right American female thread, flat-face seal; 4272697: left American female thread, flat-face seal; right American female thread, flat-face seal. Open the exact part-number or pipe-number record; do not swap ends based on appearance alone.

Can I locate a Hitachi ZX300LC-6N Boom Assembly hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 8 (4622750), Pipe No. 15 (4661965), Pipe No. 26 (4272697), Pipe No. 13 (4250078). Open a record to compare its installation position with the linked manual page.