Hydraulic line repair data

Caterpillar CAT®M312 Attachments – Breaker Hose List

Coverage details

Hoses: 5 records
Full specifications: 5 records
Systems: 1 systems
Length range: 3,950–5,000 mm

Current system

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Hose repair details

Hose Length and Fitting List

Diagram Pipe No. 5

147-0014

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

Length: 3,950 mm
Specification: DN19;4SP-12;35Mpa
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. 7

156-0819

Installation route: 大臂(中段)~大臂(后段)

Length: 5,000 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. 5

150-7615

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

Length: 3,950 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

147-0014

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

Length: 3,950 mm
Specification: DN19;4SP-12;35Mpa
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

148-7094

Installation route: 大臂(中段)~大臂(后段)

Length: 5,000 mm
Specification: DN19;4SP-12;35Mpa
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

145-4965

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

Length: 1,510 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: 45°美制内螺纹平面密封

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Diagram Pipe No. 11

145-4966

Installation route: 过渡阀块(回油滤芯)~左过渡阀块(破碎器)

Length: 1,600 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: 45°美制内螺纹平面密封

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Diagram Pipe No. 5

142-4847

Installation route: 小臂破碎器截止阀左

Length: 1,150 mm
Specification: DN19;4SP-12;35Mpa
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

185-7324

Installation route: 小臂破碎器截止阀右

Length: 1,000 mm
Specification: DN25;4SP-16;35Mpa
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. 6

185-7325

Installation route: 小臂破碎器截止阀右

Length: 1,150 mm
Specification: DN25;4SP-16;35Mpa
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

223-3304

Installation route: 小臂破碎器截止阀

Length: 1,060 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° heavy-series flangeOriginal Chinese: 90°法兰-重型

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Diagram Pipe No. 5

145-4959

Installation route: 小臂破碎器截止阀

Length: 1,150 mm
Specification: DN19;4SP-12;35Mpa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: 90° heavy-series flangeOriginal Chinese: 90°法兰-重型

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Diagram Pipe No. 4

204-0688

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

Length: 1,500 mm
Specification: DN19;6SH-12;42Mpa
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. 2

142-4847

Installation route: 大臂(前段)~大臂(中段)

Length: 1,150 mm
Specification: DN19;4SP-12;35Mpa
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

204-0685

Installation route: 小臂破碎器截止阀

Length: 1,000 mm
Specification: DN19;6SH-12;42Mpa
Left fitting: 90° heavy-series flangeOriginal Chinese: 90°法兰-重型
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

151-9392

Installation route: 小臂破碎器截止阀左

Length: 1,000 mm
Specification: DN19;4SP-12;35Mpa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: 90° heavy-series flangeOriginal Chinese: 90°法兰-重型

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Diagram Pipe No. 8

179-9116

Installation route: 小臂破碎器截止阀右

Length: 1,250 mm
Specification: DN25;4SP-16;35Mpa
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. 8

204-0688

Installation route: 大臂(破碎器)~过渡阀块(破碎器)

Length: 1,500 mm
Specification: DN19;6SH-12;42Mpa
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. 8

185-7325

Installation route: 大臂(前段)~大臂(中段)

Length: 1,150 mm
Specification: DN25;4SP-16;35Mpa
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

129-9969

Installation route: 小臂破碎器截止阀左

Length: 1,250 mm
Specification: DN19;4SP-12;35Mpa
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. 6

152-0179

Installation route: 小臂破碎器截止阀左

Length: 100 mm
Specification: DN19;4SP-12;35Mpa
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. 11

151-0051

Installation route: 分配阀前左~右过渡阀块(破碎器)

Length: 570 mm
Specification: DN19;4SP-12;35Mpa
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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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®M312 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®M312 Attachments – Breaker?

Based on published records with valid lengths, the range is 3,950–5,000 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Caterpillar CAT®M312 Attachments – Breaker?

The most frequent raw specifications in the current published records are: DN19;4SP-12;35Mpa (3 records), DN25;1SN-16;7Mpa (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®M312 Attachments – Breaker?

Each record keeps the left and right fitting descriptions separate. Current examples: 147-0014: left American female thread, flat-face seal; right American female thread, flat-face seal; 156-0819: left American female thread, flat-face seal; right American female thread, flat-face seal; 150-7615: 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®M312 Attachments – Breaker hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 5 (147-0014), Pipe No. 7 (156-0819), Pipe No. 5 (150-7615), Pipe No. 2 (147-0014). Open a record to compare its installation position with the linked manual page.