Hydraulic line repair data

Caterpillar CAT®311F LRR Attachments Hose List

Coverage details

Hoses: 10 records
Full specifications: 10 records
Systems: 1 systems
Length range: 550–3,300 mm

Current system

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Hose repair details

Hose Length and Fitting List

Diagram Pipe No. 2

237-3227

Installation route: 大臂(附加装置)~小臂(附加装置)

Length: 1,350 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

4I-1037

Installation route: 手柄(推土铲)~控制阀(回转马达左)

Length: 1,400 mm
Specification: DN10;1SN-6;10.4Mpa
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. 9

266-1302

Installation route: 踏板(附加装置)~分配阀上

Length: 3,300 mm
Specification: DN10;-6;10.3Mpa
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. 9

424-3208

Installation route: 控制阀(推土铲)~回转接头

Length: 550 mm
Specification: DN16;4SP-10;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. 7

302-9509

Installation route: 大臂(附加装置)~小臂(附加装置)

Length: 1,330 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

4I-6136

Installation route: 大臂(附加装置)~电磁阀(回转马达右)

Length: 1,500 mm
Specification: DN10;-6;10.3Mpa
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

282-5755

Installation route: 大臂(附加装置)~小臂(附加装置)

Length: 1,650 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. 14

143-4254

Installation route: 梭阀(分配阀下)~

Length: 1,160 mm
Specification: DN10;1SN-6;10.4Mpa
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

184-9155

Installation route: 踏板(附加装置)~电磁阀(回转接头左)

Length: 1,220 mm
Specification: DN10;-6;10.3Mpa
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: 大臂(附加装置)~小臂(附加装置)

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. 1

087-4531

Installation route: 右踏板~进回油阀

Length: 600 mm
Specification: DN10;1SN-6;10.4Mpa
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. 1

285-2759

Installation route: 大臂(附加装置)~分配阀左

Length: 1,830 mm
Specification: DN16;6SH-10;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

139-1765

Installation route: 推土铲铁管~推土铲油缸

Length: 780 mm
Specification: DN16;4SP-10;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. 7

325-9164

Installation route: 手柄(推土铲)~控制阀(回转马达左)

Length: 1,520 mm
Specification: DN10;1SN-6;10.4Mpa
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

285-2755

Installation route: 大臂(附加装置)~分配阀左

Length: 1,800 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

139-1765

Installation route: 推土铲油缸~

Length: 780 mm
Specification: DN16;4SP-10;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. 6

285-2830

Installation route: 大臂(附加装置)~分配阀左

Length: 1,963 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

139-1762

Installation route: 推土铲油缸~

Length: 760 mm
Specification: DN16;4SP-10;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. 1

255-1947

Installation route: 液压油散热器~回油阀块(液压油箱前)

Length: 730 mm
Specification: DN32;1SN-20;4.3Mpa
Left fitting: 90° light-series flangeOriginal Chinese: 90°法兰-轻型
Right fitting: Light-series flangeOriginal Chinese: 法兰-轻型

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Diagram Pipe No. 6

183-1819

Installation route: 控制阀(推土铲)~回转接头

Length: 550 mm
Specification: DN16;4SP-10;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. 3

399-6244

Installation route: 大臂(附加装置)~控制阀(回转马达左)

Length: 3,120 mm
Specification: DN13;4SP-8;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. 7

207-6418

Installation route: 踏板(附加装置)~进回油阀

Length: 550 mm
Specification: DN10;1SN-6;10.4Mpa
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. 10

285-2795

Installation route: 大臂(附加装置)~分配阀左

Length: 1,910 mm
Specification: DN16;6SH-10;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. 2

286-6541

Installation route: 液压油散热器~回油阀块(液压油箱前)

Length: 710 mm
Specification: DN32;1SN-20;4.3Mpa
Left fitting: Light-series flangeOriginal Chinese: 法兰-轻型
Right fitting: 90° light-series flangeOriginal Chinese: 90°法兰-轻型

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Diagram Pipe No. 2

087-4531

Installation route: 踏板(附加装置)~进回油阀

Length: 600 mm
Specification: DN10;1SN-6;10.4Mpa
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. 6

478-3023

Installation route: 大臂(附加装置)~分配阀左

Length: 1,960 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. 7

285-2751

Installation route: 大臂(附加装置)~分配阀左

Length: 1,760 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: 45°美制内螺纹平面密封

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Diagram Pipe No. 5

278-6641

Installation route: 电磁阀(大臂上)~大臂铁管

Length: 1,000 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. 4

450-8400

Installation route: 大臂(附加装置)~控制阀(回转马达左)

Length: 3,140 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

139-1762

Installation route: 推土铲铁管~推土铲油缸

Length: 760 mm
Specification: DN16;4SP-10;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. 2

087-5767

Installation route: 右踏板~进回油阀

Length: 700 mm
Specification: DN10;1SN-6;10.4Mpa
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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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®311F LRR Attachments?

There are 10 published records. 10 include a length, both end fittings, and a part number or diagram pipe number.

What is the hose length range for Caterpillar CAT®311F LRR Attachments?

Based on published records with valid lengths, the range is 550–3,300 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Caterpillar CAT®311F LRR Attachments?

The most frequent raw specifications in the current published records are: DN10;-6;10.3Mpa (3 records), DN10;1SN-6;10.4Mpa (2 records), DN13;4SP-8;28Mpa (2 records), DN19;6SH-12;42Mpa (2 records), DN16;4SP-10;28Mpa (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®311F LRR Attachments?

Each record keeps the left and right fitting descriptions separate. Current examples: 237-3227: left American female thread, flat-face seal; right American female thread, flat-face seal; 4I-1037: left American female thread, flat-face seal; right American female thread, flat-face seal; 266-1302: 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®311F LRR Attachments hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 2 (237-3227), Pipe No. 2 (4I-1037), Pipe No. 9 (266-1302), Pipe No. 9 (424-3208). Open a record to compare its installation position with the linked manual page.