Hydraulic line repair data

Caterpillar CAT®312E Attachments – Breaker Hose List

Coverage details

Hoses: 7 records
Full specifications: 7 records
Systems: 1 systems
Length range: 510–1,980 mm

Current system

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Hose repair details

Hose Length and Fitting List

Diagram Pipe No. 10

356-9242

Installation route: 回油铁管(分配阀)~破碎器过滤器

Length: 920 mm
Specification: DN25;1SN-16;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. 2

374-0129

Installation route: 小臂破碎器截止阀左

Length: 1,550 mm
Specification: DN19;6SH-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. 4

381-5866

Installation route: 左过渡阀块(破碎器)~右过渡阀块(破碎器)

Length: 510 mm
Specification: DN25;1SN-16;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. 8

372-9809

Installation route: 小臂破碎器截止阀

Length: 1,850 mm
Specification: DN13;4SP-8;28Mpa
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

356-9242

Installation route: 分配阀前左~分配阀前右

Length: 920 mm
Specification: DN25;1SN-16;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. 8

372-9830

Installation route: 小臂破碎器截止阀

Length: 1,450 mm
Specification: DN13;4SP-8;28Mpa
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. 2

241-5149

Installation route: 小臂破碎器截止阀左

Length: 1,980 mm
Specification: DN19;6SH-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. 6

381-5863

Installation route: 分配阀前左~分配阀前右

Length: 650 mm
Specification: DN19;6SH-12;42Mpa
Left fitting: 90° elbow, American female thread, flat-face sealOriginal Chinese: 90°美制内螺纹平面密封
Right fitting: 30°美制内螺纹平面密封

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Diagram Pipe No. 3

374-0095

Installation route: 小臂破碎器截止阀右

Length: 1,650 mm
Specification: DN25;6SH-16;42Mpa
Left fitting: Heavy-series flangeOriginal Chinese: 法兰-重型
Right fitting: 90° heavy-series flangeOriginal Chinese: 90°法兰-重型

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Diagram Pipe No. 3

087-6643

Installation route: 小臂破碎器截止阀右

Length: 2,100 mm
Specification: DN25;6SH-16;42Mpa
Left fitting: Heavy-series flangeOriginal Chinese: 法兰-重型
Right fitting: 90° heavy-series flangeOriginal Chinese: 90°法兰-重型

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Diagram Pipe No. 1

187-6833

Installation route: 右过渡阀块(破碎器)~破碎器过滤器

Length: 710 mm
Specification: DN25;1SN-16;7Mpa
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. 3

356-9198

Installation route: 回油铁管(分配阀)~右过渡阀块(破碎器)

Length: 680 mm
Specification: DN25;1SN-16;7Mpa
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

356-9210

Installation route: 分配阀前左~右过渡阀块(破碎器)

Length: 710 mm
Specification: DN19;6SH-12;42Mpa
Left fitting: 90° elbow, American female thread, flat-face sealOriginal Chinese: 90°美制内螺纹平面密封
Right fitting: 90° elbow, American female thread, flat-face sealOriginal Chinese: 90°美制内螺纹平面密封

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Diagram Pipe No. 2

321-0276

Installation route: 大臂(破碎器)~右过渡阀块(破碎器)

Length: 1,210 mm
Specification: DN25;6SH-16;42Mpa
Left fitting: 30°法兰-重型
Right fitting: Heavy-series flangeOriginal Chinese: 法兰-重型

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Diagram Pipe No. 9

319-9775

Installation route: 左过渡阀块(破碎器)~右过渡阀块(破碎器)

Length: 540 mm
Specification: DN25;1SN-16;7Mpa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: 90° elbow, American female thread, flat-face sealOriginal Chinese: 90°美制内螺纹平面密封

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Diagram Pipe No. 5

356-9204

Installation route: 分配阀前右~左过渡阀块(破碎器)

Length: 560 mm
Specification: DN19;6SH-12;42Mpa
Left fitting: 90° elbow, American female thread, flat-face sealOriginal Chinese: 90°美制内螺纹平面密封
Right fitting: 90° elbow, American female thread, flat-face sealOriginal Chinese: 90°美制内螺纹平面密封

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Diagram Pipe No. 8

356-9213

Installation route: 分配阀前右~右过渡阀块(破碎器)

Length: 490 mm
Specification: DN19;6SH-12;42Mpa
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. 3

321-0280

Installation route: 大臂(破碎器)~左过渡阀块(破碎器)

Length: 1,179 mm
Specification: DN19;6SH-12;42Mpa
Left fitting: 30°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 Caterpillar CAT®312E Attachments – Breaker?

There are 7 published records. 7 include a length, both end fittings, and a part number or diagram pipe number.

What is the hose length range for Caterpillar CAT®312E Attachments – Breaker?

Based on published records with valid lengths, the range is 510–1,980 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Caterpillar CAT®312E Attachments – Breaker?

The most frequent raw specifications in the current published records are: DN25;1SN-16;7Mpa (3 records), DN13;4SP-8;28Mpa (2 records), DN19;6SH-12;42Mpa (2 records). Verify the specification together with length, pressure, and fitting details.

How can I identify the left and right hose fittings for Caterpillar CAT®312E Attachments – Breaker?

Each record keeps the left and right fitting descriptions separate. Current examples: 356-9242: left American female thread, flat-face seal; right American female thread, flat-face seal; 374-0129: left American female thread, flat-face seal; right American female thread, flat-face seal; 381-5866: 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 Caterpillar CAT®312E Attachments – Breaker hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 10 (356-9242), Pipe No. 2 (374-0129), Pipe No. 4 (381-5866), Pipe No. 8 (372-9809). Open a record to compare its installation position with the linked manual page.