Hydraulic line repair data

Hitachi EX450LC-5 Boom Assembly Hose List

Hitachi EX450LC-5 Boom Assembly currently has 4 published hose records for checking length, hose specification, left and right fittings, part number, and diagram pipe number.

Hoses: 4 records
Full specifications: 4 records
Systems: 1 systems
Length range: 900–2,550 mm

Hose repair details

Hose Length and Fitting List

Diagram Pipe No. 30

4311057

Installation route: 小臂油缸

Length: 1,000 mm
Specification: DN32;6SP-20;31MPa
Left fitting: Heavy-series flangeOriginal Chinese: 法兰-重型
Right fitting: Heavy-series flangeOriginal Chinese: 法兰-重型

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Diagram Pipe No. 102

4259804

Installation route: 大臂左3/左4/左5/左6

Length: 2,550 mm
Specification: DN25;4SP-16;32Mpa
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. 102

4259804

Installation route: 大臂左2

Length: 2,550 mm
Specification: DN25;4SP-16;32Mpa
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

4345675

Installation route: 铲斗油缸左

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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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 EX450LC-5 Boom Assembly?

There are 4 published records. 4 include a length, both end fittings, and a part number or diagram pipe number.

What is the hose length range for Hitachi EX450LC-5 Boom Assembly?

Based on published records with valid lengths, the range is 900–2,550 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Hitachi EX450LC-5 Boom Assembly?

The most frequent raw specifications in the current published records are: DN25;4SP-16;32Mpa (2 records), DN25;4SH-16;38.8MPa (1 records), DN32;6SP-20;31MPa (1 records). Verify the specification together with length, pressure, and fitting details.

How can I identify the left and right hose fittings for Hitachi EX450LC-5 Boom Assembly?

Each record keeps the left and right fitting descriptions separate. Current examples: 4311057: left Heavy-series flange; right Heavy-series flange; 4259804: left American female thread, flat-face seal; right American female thread, flat-face seal; 4259804: 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 EX450LC-5 Boom Assembly hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 30 (4311057), Pipe No. 102 (4259804), Pipe No. 102 (4259804), Pipe No. 8 (4345675). Open a record to compare its installation position with the linked manual page.