Hydraulic line repair data

Hitachi EX400LC-3C Swing Motor Hose List

Coverage details

Hoses: 3 records
Full specifications: 3 records
Systems: 1 systems
Length range: 700–2,200 mm

Current system

Find a hose in this system

Use the number on the diagram, a part number, connection point, length, hose size, or fitting.

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Hose repair details

Hose Length and Fitting List

Diagram Pipe No. 92

4366762

Installation route: 回转马达(左)~电磁阀

Length: 1,150 mm
Specification: DN10;1SN-6;7Mpa
Left fitting: 美制内螺纹37°内锥
Right fitting: 90°美制内螺纹37°内锥

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Diagram Pipe No. 1

4292786

Installation route: Swing motor → return steel line (hydraulic tank)Original Chinese: 回转马达~回油铁管(液压油箱)

Length: 2,200 mm
Specification: DN12;4层纤维层-8;3MPa
Left fitting: 美制内螺纹37°内锥
Right fitting: 90°美制内螺纹37°内锥

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Diagram Pipe No. 44

4366753

Installation route: 回转马达(左)~回转马达(右)

Length: 700 mm
Specification: DN10;1SN-6;7Mpa
Left fitting: 美制内螺纹37°内锥
Right fitting: 90°美制内螺纹37°内锥

View full repair specifications

Workshop guide

Finding the correct hydraulic hose for Hitachi EX400LC-3C Swing Motor

Start with the machine and route

For Hitachi EX400LC-3C Swing Motor, identify the exact model and hydraulic system on the machine first. A part number or diagram pipe number is the fastest way to narrow a replacement hose; if neither is visible, compare the installation route and the existing hose.

See all Hitachi EX400LC-3C systems

Read the dimensions before cutting

Check whether a listed dimension is finished assembly length, hose-only length, or cut length. These are not interchangeable. Confirm hose specification and pressure rating, then compare both ends separately: thread, sealing seat, size, angle, and orientation.

Records to compare

43667621,150 mm · DN10;1SN-6;7Mpa · 回转马达(左)~电磁阀
42927862,200 mm · DN12;4层纤维层-8;3MPa · Swing motor → return steel line (hydraulic tank)
4366753700 mm · DN10;1SN-6;7Mpa · 回转马达(左)~回转马达(右)

Use the drawing as a location check

Where an installation drawing or manual figure is available, match its callout to the part number and physical route. A hydraulic circuit diagram explains connections but does not show the exact routing of a hose on the machine. Take the old hose or clear end-fitting photographs to the workshop if any dimension is missing.

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 EX400LC-3C Swing Motor?

There are 3 published records. 3 include a length, both end fittings, and a part number or diagram pipe number.

What is the hose length range for Hitachi EX400LC-3C Swing Motor?

Based on published records with valid lengths, the range is 700–2,200 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Hitachi EX400LC-3C Swing Motor?

The most frequent raw specifications in the current published records are: DN10;1SN-6;7Mpa (2 records), DN12;4层纤维层-8;3MPa (1 records). Verify the specification together with length, pressure, and fitting details.

How can I identify the left and right hose fittings for Hitachi EX400LC-3C Swing Motor?

Each record keeps the left and right fitting descriptions separate. Current examples: 4366762: left 美制内螺纹37°内锥; right 90°美制内螺纹37°内锥; 4292786: left 美制内螺纹37°内锥; right 90°美制内螺纹37°内锥; 4366753: left 美制内螺纹37°内锥; right 90°美制内螺纹37°内锥. Open the exact part-number or pipe-number record; do not swap ends based on appearance alone.

Can I locate a Hitachi EX400LC-3C Swing Motor hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 92 (4366762), Pipe No. 1 (4292786), Pipe No. 44 (4366753). Open a record to compare its installation position with the linked manual page.