Length: 1,655 mm
Specification: DN19;4SP-12;28Mpa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: 45°美制内螺纹平面密封

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Diagram Pipe No. 3

4I-7769

Installation route: 破碎器踏板~进回油阀

Length: 700 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. 2

129-0956

Installation route: 小臂破碎器截止阀右

Length: 1,370 mm
Specification: DN25;4SP-16;28Mpa
Left fitting: 90° elbow, American female thread, flat-face sealOriginal Chinese: 90°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

129-0957

Installation route: 小臂破碎器截止阀左

Length: 1,370 mm
Specification: DN19;4SP-12;28Mpa
Left fitting: 90° elbow, American female thread, flat-face sealOriginal Chinese: 90°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. 2

155-5325

Installation route: 小臂破碎器截止阀左

Length: 1,655 mm
Specification: DN25;4SP-16;28Mpa
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

4I-7684

Installation route: 分配阀下~手动阀

Length: 1,550 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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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-A Attachments – Breaker?

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 Caterpillar CAT®317-A Attachments – Breaker?

Based on published records with valid lengths, the range is 820–2,950 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-A Attachments – Breaker?

The most frequent raw specifications in the current published records are: DN10;-6;10.3Mpa (4 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-A Attachments – Breaker?

Each record keeps the left and right fitting descriptions separate. Current examples: 4I-1455: left 美制内螺纹37°锥; right 美制内螺纹37°锥; 4I-6242: left 美制内螺纹37°锥; right 美制内螺纹37°锥; 4I-3778: 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-A Attachments – Breaker hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 22 (4I-1455), Pipe No. 25 (4I-6242), Pipe No. 8 (4I-3778), Pipe No. 5 (4I-1455). Open a record to compare its installation position with the linked manual page.