Hydraulic line repair data

Caterpillar CAT®317 N Attachments – Lock Valve Hose List

Coverage details

Hoses: 11 records
Full specifications: 11 records
Systems: 1 systems
Length range: 600–6,800 mm

Current system

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Hose repair details

Hose Length and Fitting List

Diagram Pipe No. 2

137-4678

Installation route: 小臂油缸锁止阀

Length: 3,600 mm
Specification: DN10;1SN-6;15.7Mpa
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. 4

7T-6625

Installation route: 右大臂油缸锁止阀~分配阀前

Length: 2,200 mm
Specification: DN10;1SN-6;15.7Mpa
Left fitting: 美制内螺纹37°锥
Right fitting: 美制内螺纹37°锥

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Diagram Pipe No. 10

103-1434

Installation route: 过渡接头(大臂油缸锁止阀)~分配阀下

Length: 1,200 mm
Specification: DN10;-6;10.3Mpa
Left fitting: 美制内螺纹37°锥
Right fitting: 美制内螺纹37°锥

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Diagram Pipe No. 8

141-6245

Installation route: 左大臂油缸锁止阀~过渡接头(大臂油缸锁止阀)

Length: 765 mm
Specification: DN10;1SN-6;15.7Mpa
Left fitting: 美制内螺纹37°锥
Right fitting: 美制内螺纹37°锥

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Diagram Pipe No. 8

141-6245

Installation route: Left boom-cylinder lock valve → right boom-cylinder lock valveOriginal Chinese: 左大臂油缸锁止阀~右大臂油缸锁止阀

Length: 765 mm
Specification: DN10;1SN-6;15.7Mpa
Left fitting: 美制内螺纹37°锥
Right fitting: 美制内螺纹37°锥

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Diagram Pipe No. 7

141-6246

Installation route: 左大臂油缸锁止阀~过渡接头(大臂油缸锁止阀)

Length: 620 mm
Specification: DN10;1SN-6;15.7Mpa
Left fitting: 美制内螺纹37°锥
Right fitting: 美制内螺纹37°锥

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Diagram Pipe No. 1

121-3148

Installation route: 小臂油缸锁止阀

Length: 6,800 mm
Specification: DN19;1SN-12;8.7Mpa
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. 5

8R-2014

Installation route: 大臂油缸锁止阀~过渡阀块(大臂油缸锁止阀)

Length: 600 mm
Specification: DN19;1SN-12;8.7Mpa
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. 10

141-6247

Installation route: Left boom-cylinder lock valve → right boom-cylinder lock valveOriginal Chinese: 左大臂油缸锁止阀~右大臂油缸锁止阀

Length: 910 mm
Specification: DN10;1SN-6;15.7Mpa
Left fitting: 美制内螺纹37°锥
Right fitting: 美制内螺纹37°锥

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Diagram Pipe No. 28

6C-6464

Installation route: Left boom-cylinder lock valve → right boom-cylinder lock valveOriginal Chinese: 左大臂油缸锁止阀~右大臂油缸锁止阀

Length: 1,300 mm
Specification: DN10;6SH-6;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. 1

137-4679

Installation route: 小臂油缸锁止阀

Length: 3,500 mm
Specification: DN19;1SN-12;8.7Mpa
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. 4

5I-3136

Installation route: 过渡接头(大臂油缸锁止阀)~蓄能器电磁阀

Length: 1,900 mm
Specification: DN10;-6;10.3Mpa
Left fitting: 90°美制内螺纹37°锥
Right fitting: 美制内螺纹37°锥

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Diagram Pipe No. 1

5T-4741

Installation route: 右大臂油缸锁止阀~液压油箱

Length: 2,925 mm
Specification: DN10;1SN-6;15.7Mpa
Left fitting: 90°美制内螺纹37°锥
Right fitting: 美制内螺纹37°锥

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Diagram Pipe No. 14

102-1130

Installation route: 过渡接头(大臂油缸锁止阀)~电磁阀(回转接头右)

Length: 458 mm
Specification: DN16;1SN-10;10.5Mpa
Left fitting: 45°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

135-2514

Installation route: 大臂油缸锁止阀~过渡接头(大臂油缸锁止阀)

Length: 1,400 mm
Specification: DN10;1SN-6;15.7Mpa
Left fitting: 90°美制内螺纹37°锥
Right fitting: 美制内螺纹37°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 Caterpillar CAT®317 N Attachments – Lock Valve?

There are 11 published records. 11 include a length, both end fittings, and a part number or diagram pipe number.

What is the hose length range for Caterpillar CAT®317 N Attachments – Lock Valve?

Based on published records with valid lengths, the range is 600–6,800 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Caterpillar CAT®317 N Attachments – Lock Valve?

The most frequent raw specifications in the current published records are: DN10;1SN-6;15.7Mpa (6 records), DN19;1SN-12;8.7Mpa (3 records), DN10;-6;10.3Mpa (1 records), DN10;6SH-6;42Mpa (1 records). Verify the specification together with length, pressure, and fitting details.

How can I identify the left and right hose fittings for Caterpillar CAT®317 N Attachments – Lock Valve?

Each record keeps the left and right fitting descriptions separate. Current examples: 137-4678: left American female thread, flat-face seal; right American female thread, flat-face seal; 7T-6625: left 美制内螺纹37°锥; right 美制内螺纹37°锥; 103-1434: left 美制内螺纹37°锥; right 美制内螺纹37°锥. Open the exact part-number or pipe-number record; do not swap ends based on appearance alone.

Can I locate a Caterpillar CAT®317 N Attachments – Lock Valve hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 2 (137-4678), Pipe No. 4 (7T-6625), Pipe No. 10 (103-1434), Pipe No. 8 (141-6245). Open a record to compare its installation position with the linked manual page.