Hydraulic line repair data

Caterpillar CAT®312D L Attachments – Breaker Hose List

Coverage details

Hoses: 5 records
Full specifications: 5 records
Systems: 1 systems
Length range: 1,180–1,900 mm

Current system

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Hose repair details

Hose Length and Fitting List

Diagram Pipe No. 8

302-9326

Installation route: 小臂破碎器截止阀左

Length: 1,180 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. 2

277-0917

Installation route: 小臂破碎器截止阀左

Length: 1,900 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. 2

102-1279

Installation route: 小臂破碎器截止阀左

Length: 1,730 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. 14

282-7150

Installation route: 右过渡阀块(破碎器)~分配阀后

Length: 1,900 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. 2

187-6692

Installation route: 小臂破碎器截止阀左

Length: 1,500 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

319-9762

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

Length: 470 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: 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. 13

113-6803

Installation route: 右过渡阀块(破碎器)~分配阀后

Length: 450 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: 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. 3

282-5772

Installation route: 小臂破碎器截止阀右

Length: 2,050 mm
Specification: DN25;6SH-16;42Mpa
Left fitting: 90° heavy-series flangeOriginal Chinese: 90°法兰-重型
Right fitting: Heavy-series flangeOriginal Chinese: 法兰-重型

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Diagram Pipe No. 7

302-9322

Installation route: 小臂破碎器截止阀右

Length: 1,330 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. 2

128-7471

Installation route: 右过渡阀块(破碎器)~分配阀后

Length: 730 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. 6

275-1750

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

Length: 660 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: 45°美制内螺纹平面密封

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Diagram Pipe No. 3

212-5326

Installation route: 小臂破碎器截止阀右

Length: 1,800 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. 6

266-0939

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

Length: 760 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: 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. 3

314-8233

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

Length: 576 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. 4

204-8393

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

Length: 620 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. 3

253-6694

Installation route: 小臂破碎器截止阀右

Length: 1,600 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. 15

282-7154

Installation route: 右过渡阀块(破碎器)~分配阀前

Length: 500 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: 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

319-9759

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

Length: 540 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: 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

128-7471

Installation route: 右过渡阀块(破碎器)~分配阀前

Length: 730 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

View full repair specifications

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®312D L Attachments – Breaker?

There are 5 published records. 5 include a length, both end fittings, and a part number or diagram pipe number.

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

Based on published records with valid lengths, the range is 1,180–1,900 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

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

The most frequent raw specifications in the current published records are: DN19;6SH-12;42Mpa (5 records). Verify the specification together with length, pressure, and fitting details.

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

Each record keeps the left and right fitting descriptions separate. Current examples: 302-9326: left American female thread, flat-face seal; right American female thread, flat-face seal; 277-0917: left American female thread, flat-face seal; right American female thread, flat-face seal; 102-1279: 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®312D L Attachments – Breaker hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 8 (302-9326), Pipe No. 2 (277-0917), Pipe No. 2 (102-1279), Pipe No. 14 (282-7150). Open a record to compare its installation position with the linked manual page.