YUANJIAN MACHINERY / TECHNICAL LIBRARY

CAT Excavator Manual & Diagram Catalogue

Model-specific reference catalogues, diagrams and practical repair questions. Compiled by YUANJIAN, a direct used excavator supplier in China.

Published and updated: · YUANJIAN technical resources team

See what is inside the collection

Systems operation · 33Testing & adjustment · 34Disassembly & assembly · 28Troubleshooting · 31Hydraulic & electrical diagramsEngines & components

Browse by model

CAT 311BCAT 311CCAT 311D LRRCAT 311F LRRCAT 312CCAT 312D2CAT 312D2 GCCAT 312D2 LCAT 313D2CAT 320DCAT 320D GCCAT 320D LCAT 320D2CAT 320D2 GCCAT 320D2 LCAT 320ECAT 320GCCAT 323D2CAT 326D2CAT 329D2CAT 330D2CAT 330D2 LCAT 336D2CAT 336D2 GCCAT 336D2 LCAT 336D2 L XECAT 336D2 LXECAT 336D2 XECAT 336ECAT 340D2 LCAT 349D2

Suffixes stay separate: 320GC is not 320D GC or 320D2 GC. Some collected files are engine chapters, not complete excavator manuals.

Find your model and reference

134 selected records. Checked opening-page identities and page counts are shown where available; each full document still needs serial and edition matching.

134 references

CAT 311B / 2LS YJ-CAT-E137D96

CAT 311B systems operation collection

Opening-page configuration: 3064 engine / 2LS

453 PDF pagesRequest reference

CAT 311C / PAD YJ-CAT-1EE9FD0

CAT 311C systems operation collection

Opening-page configuration: 3064 engine / PAD

189 PDF pagesRequest reference

CAT 311D LRR / CLA YJ-CAT-059D818

CAT 311D LRR systems operation collection

Opening-page configuration: C4.2 engine / CLA

1772 PDF pagesRequest reference

CAT 311F LRR / JFT YJ-CAT-EE1E499

CAT 311F LRR systems operation collection

Opening-page configuration: C3.4B engine / JFT

303 PDF pagesRequest reference

CAT 312C / BWH YJ-CAT-DECD95B

CAT 312C systems operation collection

Opening-page configuration: 3064 engine / BWH

722 PDF pagesRequest reference

CAT 312D2 GC / BRW YJ-CAT-011FF19

CAT 312D2 GC systems operation collection

Opening-page configuration: 3054C engine / BRW

513 PDF pagesRequest reference

CAT 312D2 L / EAB YJ-CAT-3B0163B

CAT 312D2 L systems operation collection

Opening-page configuration: 3054C engine / EAB

548 PDF pagesRequest reference

CAT 312D2 / DGF YJ-CAT-79AD67D

CAT 312D2 systems operation collection

Opening-page configuration: 3054C engine / DGF

472 PDF pagesRequest reference

CAT 313D2 / FAP YJ-CAT-C0753CC

CAT 313D2 systems operation collection

Opening-page configuration: C4.4 engine / FAP

436 PDF pagesRequest reference

CAT 320D GC / JZA YJ-CAT-59E4B52

CAT 320D GC systems operation collection

Opening-page configuration: C6.6 engine / JZA

592 PDF pagesRequest reference

CAT 320D2 L / DNS YJ-CAT-2E2A46C

CAT 320D2 L systems operation collection

Opening-page configuration: C7.1 engine / DNS

395 PDF pagesRequest reference

CAT 320D2 / DNP YJ-CAT-579EF50

CAT 320D2 systems operation collection

Opening-page configuration: C7.1 engine / DNP

568 PDF pagesRequest reference

CAT 320E / AWS YJ-CAT-65FF41A

CAT 320E systems operation collection

Opening-page configuration: C6.6 engine / AWS

244 PDF pagesRequest reference

CAT 320GC / DKJ YJ-CAT-84B8B2E

CAT 320GC systems operation collection

Opening-page configuration: C4.4 engine / DKJ

59 PDF pagesRequest reference

CAT 323D2 / JEX YJ-CAT-95E965F

CAT 323D2 systems operation collection

Opening-page configuration: C7.1 engine / JEX

414 PDF pagesRequest reference

CAT 323D2 / JEX YJ-CAT-806CED5

CAT 323D2 systems operation collection

Opening-page configuration: C7.1 engine / JEX

431 PDF pagesRequest reference

CAT 329D2 / SHJ YJ-CAT-8E9EAF2

CAT 329D2 systems operation collection

Opening-page configuration: C7.1 engine / SHJ

581 PDF pagesRequest reference

CAT 329D2 / SHJ YJ-CAT-B7967A6

CAT 329D2 systems operation collection

Opening-page configuration: C7.1 engine / SHJ

518 PDF pagesRequest reference

CAT 330D2 L / PTE YJ-CAT-06B7A24

CAT 330D2 L systems operation collection

Opening-page configuration: C7.1 engine / PTE

589 PDF pagesRequest reference

CAT 330D2 / EX7 YJ-CAT-9A5D941

CAT 330D2 systems operation collection

Opening-page configuration: C7.1 engine / EX7

575 PDF pagesRequest reference

CAT 336D2 L XE / MEH YJ-CAT-62A4F37

CAT 336D2 L XE systems operation collection

Opening-page configuration: C9 engine / MEH

579 PDF pagesRequest reference

CAT 336D2 XE / LBX YJ-CAT-490FE83

CAT 336D2 XE systems operation collection

Opening-page configuration: C9 engine / LBX

570 PDF pagesRequest reference

CAT 336D2 L / ELR YJ-CAT-F6D1AF2

CAT 336D2 L systems operation collection

Opening-page configuration: C9 engine / ELR

634 PDF pagesRequest reference

CAT 336D2 / DGR YJ-CAT-D3BDE94

CAT 336D2 systems operation collection

Opening-page configuration: C9 engine / DGR

282 PDF pagesRequest reference

CAT 336E / CMR YJ-CAT-9FD4E07

CAT 336E systems operation collection

Opening-page configuration: C9.3 engine / CMR

247 PDF pagesRequest reference

CAT 340D2 L / HHK YJ-CAT-FF2383B

CAT 340D2 L systems operation collection

Opening-page configuration: C9 engine / HHK

640 PDF pagesRequest reference

CAT 349D2 / GAX YJ-CAT-CC3D1AD

CAT 349D2 systems operation collection

Opening-page configuration: C13 engine / GAX

651 PDF pagesRequest reference

CAT 349D2 / GAX YJ-CAT-F94A0E1

CAT 349D2 systems operation collection

Opening-page configuration: C13 engine / GAX

632 PDF pagesRequest reference

CAT 311B / 2LS YJ-CAT-8EC35CD

CAT 311B testing & adjustment collection

Opening-page configuration: 3064 engine / 2LS

492 PDF pagesRequest reference

CAT 311C / PAD YJ-CAT-4ECB9D1

CAT 311C testing & adjustment collection

Opening-page configuration: 3064 engine / PAD

457 PDF pagesRequest reference

CAT 311D LRR / CLA YJ-CAT-6835F1D

CAT 311D LRR testing & adjustment collection

Opening-page configuration: C4.2 engine / CLA

1125 PDF pagesRequest reference

CAT 311F LRR / JFT YJ-CAT-B29D0EC

CAT 311F LRR testing & adjustment collection

Opening-page configuration: C3.4B engine / JFT

286 PDF pagesRequest reference

CAT 312C / BWH YJ-CAT-5A34162

CAT 312C testing & adjustment collection

Opening-page configuration: 3064 engine / BWH

369 PDF pagesRequest reference

CAT 312D2 GC / BRW YJ-CAT-665C7CD

CAT 312D2 GC testing & adjustment collection

Opening-page configuration: 3054C engine / BRW

674 PDF pagesRequest reference

CAT 312D2 / DGF YJ-CAT-7DDA8B9

CAT 312D2 testing & adjustment collection

Opening-page configuration: 3054C engine / DGF

688 PDF pagesRequest reference

CAT 312D2 / DGF YJ-CAT-887507D

CAT 312D2 testing & adjustment collection

Opening-page configuration: 3054C engine / DGF

672 PDF pagesRequest reference

CAT 313D2 / FAP YJ-CAT-89BFD4D

CAT 313D2 testing & adjustment collection

Opening-page configuration: C4.4 engine / FAP

655 PDF pagesRequest reference

CAT 320D GC / JZA YJ-CAT-4E13666

CAT 320D GC testing & adjustment collection

Opening-page configuration: C6.6 engine / JZA

471 PDF pagesRequest reference

CAT 320D2 GC / JFM YJ-CAT-6711922

CAT 320D2 GC testing & adjustment collection

Opening-page configuration: C7.1 engine / JFM

590 PDF pagesRequest reference

CAT 320D2 L / DNS YJ-CAT-0D9C654

CAT 320D2 L testing & adjustment collection

Opening-page configuration: C7.1 engine / DNS

854 PDF pagesRequest reference

CAT 320D2 / DNP YJ-CAT-EC5FF81

CAT 320D2 testing & adjustment collection

Opening-page configuration: C7.1 engine / DNP

609 PDF pagesRequest reference

CAT 320E / AWS YJ-CAT-8E21251

CAT 320E testing & adjustment collection

Opening-page configuration: C6.6 engine / AWS

209 PDF pagesRequest reference

CAT 320GC / DKJ YJ-CAT-B249B46

CAT 320GC testing & adjustment collection

Opening-page configuration: C4.4 engine / DKJ

107 PDF pagesRequest reference

CAT 323D2 / JEX YJ-CAT-578E666

CAT 323D2 testing & adjustment collection

Opening-page configuration: C7.1 engine / JEX

708 PDF pagesRequest reference

CAT 323D2 / JEX YJ-CAT-C02BACB

CAT 323D2 testing & adjustment collection

Opening-page configuration: C7.1 engine / JEX

631 PDF pagesRequest reference

CAT 329D2 / SHJ YJ-CAT-ADB7C7E

CAT 329D2 testing & adjustment collection

Opening-page configuration: C7.1 engine / SHJ

582 PDF pagesRequest reference

CAT 329D2 / SHJ YJ-CAT-38BFABB

CAT 329D2 testing & adjustment collection

Opening-page configuration: C7.1 engine / SHJ

750 PDF pagesRequest reference

CAT 336D2 L XE / MEH YJ-CAT-DD37EFE

CAT 336D2 L XE testing & adjustment collection

Opening-page configuration: C9 engine / MEH

611 PDF pagesRequest reference

CAT 336D2 XE / LBX YJ-CAT-7FE5EAF

CAT 336D2 XE testing & adjustment collection

Opening-page configuration: C9 engine / LBX

607 PDF pagesRequest reference

CAT 336D2 L / ELR YJ-CAT-AB1347B

CAT 336D2 L testing & adjustment collection

Opening-page configuration: C9 engine / ELR

906 PDF pagesRequest reference

CAT 336D2 / DGR YJ-CAT-D7BC7D4

CAT 336D2 testing & adjustment collection

Opening-page configuration: C9 engine / DGR

327 PDF pagesRequest reference

CAT 336E / CMR YJ-CAT-F4D8915

CAT 336E testing & adjustment collection

Opening-page configuration: C9.3 engine / CMR

265 PDF pagesRequest reference

CAT 340D2 L / HHK YJ-CAT-81C14AD

CAT 340D2 L testing & adjustment collection

Opening-page configuration: C9 engine / HHK

653 PDF pagesRequest reference

CAT 349D2 / GAX YJ-CAT-1F71528

CAT 349D2 testing & adjustment collection

Opening-page configuration: C13 engine / GAX

723 PDF pagesRequest reference

CAT 349D2 / GAX YJ-CAT-D2E9667

CAT 349D2 testing & adjustment collection

Opening-page configuration: C13 engine / GAX

703 PDF pagesRequest reference

CAT 311D LRR / CLA YJ-CAT-0D3284E

CAT 311D LRR disassembly & assembly collection

Opening-page configuration: C4.2 engine / CLA

1584 PDF pagesRequest reference

CAT 311F LRR / JFT YJ-CAT-D23951D

CAT 311F LRR disassembly & assembly collection

Opening-page configuration: C3.4B engine / JFT

464 PDF pagesRequest reference

CAT 312C / BWH YJ-CAT-8C6B78B

CAT 312C disassembly & assembly collection

Opening-page configuration: 3064 engine / BWH

623 PDF pagesRequest reference

CAT 312D2 GC / BRW YJ-CAT-AC32DC2

CAT 312D2 GC disassembly & assembly collection

Opening-page configuration: 3054C engine / BRW

1033 PDF pagesRequest reference

CAT 312D2 / DGF YJ-CAT-6891632

CAT 312D2 disassembly & assembly collection

Opening-page configuration: 3054C engine / DGF

1030 PDF pagesRequest reference

CAT 312D2 / DGF YJ-CAT-2307DEB

CAT 312D2 disassembly & assembly collection

Opening-page configuration: 3054C engine / DGF

1037 PDF pagesRequest reference

CAT 313D2 / FAP YJ-CAT-5B9C815

CAT 313D2 disassembly & assembly collection

Opening-page configuration: C4.4 engine / FAP

395 PDF pagesRequest reference

CAT 320D GC / JZA YJ-CAT-CFC23E4

CAT 320D GC disassembly & assembly collection

Opening-page configuration: C6.6 engine / JZA

1358 PDF pagesRequest reference

CAT 320D2 L / DNS YJ-CAT-CA982DD

CAT 320D2 L disassembly & assembly collection

Opening-page configuration: C7.1 engine / DNS

412 PDF pagesRequest reference

CAT 320D2 / DNP YJ-CAT-0FAF811

CAT 320D2 disassembly & assembly collection

Opening-page configuration: C7.1 engine / DNP

1392 PDF pagesRequest reference

CAT 320GC / DKJ YJ-CAT-949C0A3

CAT 320GC disassembly & assembly collection

Opening-page configuration: C4.4 engine / DKJ

488 PDF pagesRequest reference

CAT 323D2 / JEX YJ-CAT-433E8CF

CAT 323D2 disassembly & assembly collection

Opening-page configuration: C7.1 engine / JEX

1528 PDF pagesRequest reference

CAT 323D2 / JEX YJ-CAT-F2FBFC9

CAT 323D2 disassembly & assembly collection

Opening-page configuration: C7.1 engine / JEX

1662 PDF pagesRequest reference

CAT 326D2 / HM4 YJ-CAT-909EBD6

CAT 326D2 disassembly & assembly collection

Opening-page configuration: C7.1 engine / HM4

1555 PDF pagesRequest reference

CAT 326D2 / HM4 YJ-CAT-6288C89

CAT 326D2 disassembly & assembly collection

Opening-page configuration: C7.1 engine / HM4

1560 PDF pagesRequest reference

CAT 329D2 / SHJ YJ-CAT-C9C7A47

CAT 329D2 disassembly & assembly collection

Opening-page configuration: C7.1 engine / SHJ

1578 PDF pagesRequest reference

CAT 329D2 / SHJ YJ-CAT-3D85F99

CAT 329D2 disassembly & assembly collection

Opening-page configuration: C7.1 engine / SHJ

1596 PDF pagesRequest reference

CAT 330D2 L / PTE YJ-CAT-D08BCA3

CAT 330D2 L disassembly & assembly collection

Opening-page configuration: C7.1 engine / PTE

580 PDF pagesRequest reference

CAT 330D2 / EX7 YJ-CAT-3B919E1

CAT 330D2 disassembly & assembly collection

Opening-page configuration: C7.1 engine / EX7

1633 PDF pagesRequest reference

CAT 336D2 LXE / NAH YJ-CAT-0CE839B

CAT 336D2 LXE disassembly & assembly collection

Opening-page configuration: C9 engine / NAH

407 PDF pagesRequest reference

CAT 336D2 GC / FBT YJ-CAT-93872E0

CAT 336D2 GC disassembly & assembly collection

Opening-page configuration: C9 engine / FBT

121 PDF pagesRequest reference

CAT 336D2 L / ELR YJ-CAT-75A05AD

CAT 336D2 L disassembly & assembly collection

Opening-page configuration: C9 engine / ELR

341 PDF pagesRequest reference

CAT 336E / CMR YJ-CAT-2781D7C

CAT 336E disassembly & assembly collection

Opening-page configuration: C9.3 engine / CMR

356 PDF pagesRequest reference

CAT 340D2 L / HHK YJ-CAT-2F3749E

CAT 340D2 L disassembly & assembly collection

Opening-page configuration: C9 engine / HHK

1608 PDF pagesRequest reference

CAT 349D2 / GAX YJ-CAT-1EDBC77

CAT 349D2 disassembly & assembly collection

Opening-page configuration: C13 engine / GAX

1151 PDF pagesRequest reference

CAT 349D2 / GAX YJ-CAT-A9E2D0D

CAT 349D2 disassembly & assembly collection

Opening-page configuration: C13 engine / GAX

1073 PDF pagesRequest reference

CAT 311B / 2LS YJ-CAT-AABE741

CAT 311B troubleshooting collection

Opening-page configuration: 3064 engine / 2LS

143 PDF pagesRequest reference

CAT 311C / PAD YJ-CAT-B25B628

CAT 311C troubleshooting collection

Opening-page configuration: 3064 engine / PAD

98 PDF pagesRequest reference

CAT 311D LRR / CLA YJ-CAT-6622289

CAT 311D LRR troubleshooting collection

Opening-page configuration: C4.2 engine / CLA

1458 PDF pagesRequest reference

CAT 311D LRR / CLA YJ-CAT-776BA49

CAT 311D LRR troubleshooting collection

Opening-page configuration: C4.2 engine / CLA

1458 PDF pagesRequest reference

CAT 311F LRR / JFT YJ-CAT-77B4118

CAT 311F LRR troubleshooting collection

Opening-page configuration: C3.4B engine / JFT

400 PDF pagesRequest reference

CAT 312C / BWH YJ-CAT-4098204

CAT 312C troubleshooting collection

Opening-page configuration: 3064 engine / BWH

232 PDF pagesRequest reference

CAT 312D2 GC / BRW YJ-CAT-FA18617

CAT 312D2 GC troubleshooting collection

Opening-page configuration: 3054C engine / BRW

149 PDF pagesRequest reference

CAT 312D2 L / EAB YJ-CAT-CEB4FA6

CAT 312D2 L troubleshooting collection

Opening-page configuration: 3054C engine / EAB

151 PDF pagesRequest reference

CAT 312D2 / DGF YJ-CAT-5805B06

CAT 312D2 troubleshooting collection

Opening-page configuration: 3054C engine / DGF

151 PDF pagesRequest reference

CAT 313D2 / FAP YJ-CAT-12D3DFC

CAT 313D2 troubleshooting collection

Opening-page configuration: C4.4 engine / FAP

140 PDF pagesRequest reference

CAT 320D GC / JZA YJ-CAT-3E343F0

CAT 320D GC troubleshooting collection

Opening-page configuration: C6.6 engine / JZA

782 PDF pagesRequest reference

CAT 320E / AWS YJ-CAT-3DDDCA3

CAT 320E troubleshooting collection

Opening-page configuration: C6.6 engine / AWS

123 PDF pagesRequest reference

CAT 320GC / DKJ YJ-CAT-EB837B3

CAT 320GC troubleshooting collection

Opening-page configuration: C4.4 engine / DKJ

489 PDF pagesRequest reference

CAT 323D2 / JEX YJ-CAT-6D8352A

CAT 323D2 troubleshooting collection

Opening-page configuration: C7.1 engine / JEX

477 PDF pagesRequest reference

CAT 323D2 / JEX YJ-CAT-4FA869B

CAT 323D2 troubleshooting collection

Opening-page configuration: C7.1 engine / JEX

477 PDF pagesRequest reference

CAT 326D2 / HM4 YJ-CAT-CEA6ACB

CAT 326D2 troubleshooting collection

Opening-page configuration: C7.1 engine / HM4

553 PDF pagesRequest reference

CAT 326D2 / HM4 YJ-CAT-9BB4002

CAT 326D2 troubleshooting collection

Opening-page configuration: C7.1 engine / HM4

466 PDF pagesRequest reference

CAT 329D2 / SHJ YJ-CAT-25FF914

CAT 329D2 troubleshooting collection

Opening-page configuration: C7.1 engine / SHJ

607 PDF pagesRequest reference

CAT 329D2 / SHJ YJ-CAT-873B771

CAT 329D2 troubleshooting collection

Opening-page configuration: C7.1 engine / SHJ

512 PDF pagesRequest reference

CAT 330D2 / EX7 YJ-CAT-6E05C59

CAT 330D2 troubleshooting collection

Opening-page configuration: C7.1 engine / EX7

545 PDF pagesRequest reference

CAT 336D2 L XE / MEH YJ-CAT-1D6C151

CAT 336D2 L XE troubleshooting collection

Opening-page configuration: C9 engine / MEH

310 PDF pagesRequest reference

CAT 336D2 LXE / NAH YJ-CAT-C0CBABC

CAT 336D2 LXE troubleshooting collection

Opening-page configuration: C9 engine / NAH

925 PDF pagesRequest reference

CAT 336D2 L XE / MEH YJ-CAT-5259437

CAT 336D2 L XE troubleshooting collection

Opening-page configuration: C9 engine / MEH

305 PDF pagesRequest reference

CAT 336D2 L / ELR YJ-CAT-3B6D441

CAT 336D2 L troubleshooting collection

Opening-page configuration: C9 engine / ELR

544 PDF pagesRequest reference

CAT 336D2 / DGR YJ-CAT-7037A63

CAT 336D2 troubleshooting collection

Opening-page configuration: C9 engine / DGR

371 PDF pagesRequest reference

CAT 340D2 L / HHK YJ-CAT-83EBC07

CAT 340D2 L troubleshooting collection

Opening-page configuration: C9 engine / HHK

1154 PDF pagesRequest reference

CAT 349D2 / GAX YJ-CAT-16732D7

CAT 349D2 troubleshooting collection

Opening-page configuration: C13 engine / GAX

952 PDF pagesRequest reference

CAT 349D2 / GAX YJ-CAT-1AC69D1

CAT 349D2 troubleshooting collection

Opening-page configuration: C13 engine / GAX

950 PDF pagesRequest reference

CAT 320D CAT-D-01

Hydraulic system testing and adjustment

Contents sampled; 140 PDF pages

140 PDF pagesRequest reference

CAT 320D CAT-D-02

Electrical system diagram (Chinese edition)

Catalogue metadata; edition to confirm

Catalogue entryRequest reference

CAT 320D CAT-D-03

Boom, stick and bucket circuits

Catalogue metadata; edition to confirm

Catalogue entryRequest reference

CAT 320D CAT-D-04

Swing system operation

Contents sampled; 38 PDF pages

38 PDF pagesRequest reference

CAT 320D CAT-D-05

320D-336D system introduction

Catalogue metadata; edition to confirm

Catalogue entryRequest reference

CAT 320D CAT-D-06

Pilot hydraulic system

Catalogue metadata; edition to confirm

Catalogue entryRequest reference

CAT 320D CAT-D-07

Travel system operation

Contents sampled; 59 PDF pages

59 PDF pagesRequest reference

CAT 320D CAT-D-08

Main control valve and return system

Contents sampled; 29 PDF pages

29 PDF pagesRequest reference

CAT 320D CAT-D-09

Main hydraulic pump and pump control

Contents sampled; 36 PDF pages

36 PDF pagesRequest reference

CAT 320D CAT-D-10

Hydraulic schematic

Catalogue metadata; edition to confirm

Catalogue entryRequest reference

CAT 320D CAT-D-11

Operation and maintenance reference

Catalogue metadata; edition to confirm

Catalogue entryRequest reference

CAT 320D CAT-D-12

Electrical circuit diagram (Chinese)

Catalogue metadata; edition to confirm

Catalogue entryRequest reference

CAT 320D CAT-D-13

Electrical system operation and principles

Catalogue metadata; edition to confirm

Catalogue entryRequest reference

CAT 320D CAT-D-14

Fan clutch reference

Catalogue metadata; edition to confirm

Catalogue entryRequest reference

CAT 320GC / BR4 CAT-GC-BR4

320 GC hydraulic diagram catalogue - BR4

Catalogue metadata; edition to confirm

Catalogue entryRequest reference

CAT 320GC / DKJ CAT-GC-DKJ

320 GC hydraulic diagram catalogue - DKJ

Catalogue metadata; edition to confirm

Catalogue entryRequest reference

CAT 320GC / JGY CAT-GC-JGY

320 GC hydraulic diagram catalogue - JGY

Catalogue metadata; edition to confirm

Catalogue entryRequest reference

CAT 320GC / KTN CAT-GC-KTN

320 GC hydraulic diagram catalogue - KTN

Catalogue metadata; edition to confirm

Catalogue entryRequest reference

CAT 320GC / LKS CAT-GC-LKS

320 GC hydraulic diagram catalogue - LKS

Catalogue metadata; edition to confirm

Catalogue entryRequest reference

CAT 320GC / XBJ CAT-GC-XBJ

320 GC hydraulic diagram catalogue - XBJ

Catalogue metadata; edition to confirm

Catalogue entryRequest reference

CAT 320GC / ZBT CAT-GC-ZBT

320 GC hydraulic diagram catalogue - ZBT

Catalogue metadata; edition to confirm

Catalogue entryRequest reference

CAT 320D / MCH YJ-320D-HYD-OP

320D hydraulic system operation

Selected pages inspected; confirm edition and serial range

258 PDF pagesRequest reference

CAT 320D L YJ-320DL-PARTS

320D L illustrated parts reference

Selected pages inspected; confirm edition and serial range

1023 PDF pagesRequest reference

CAT C6.4 / C4.2 YJ-C64-C42-FAULT

C6.4 / C4.2 engine troubleshooting

Selected pages inspected; confirm edition and serial range

210 PDF pagesRequest reference

CAT C7.1 / GBA YJ-C71-OP

C7.1 engine systems operation

Selected pages inspected; confirm edition and serial range

53 PDF pagesRequest reference

Technical questions and repair guides

What is in the wider collection?

Collection Local PDF files Technical coverage
Systems operation 33 Engine and machine system principles, grouped by model.
Testing & adjustment 34 Measurement methods, test conditions and component checks.
Disassembly & assembly 28 Removal, installation and assembly references; scope varies.
Troubleshooting 31 Symptoms, codes, circuits and diagnostic procedures.
Engine references 56 3064/3066, C4.2, C4.4, C6.4, C7.1, C9, C13 and other engine families.
Older / newer / Chinese diagram folders 52 / 415 / 38 Hydraulic/electrical schematics and different model editions.

Counts come from a local inventory on 10 October 2026. They count files, not unique manuals; duplicates and revisions can exist. We checked the opening pages of 126 files in the four core folders and inspected selected contents in 17 representative files. Files with unresolved identity differences are not presented as confirmed model matches.

YUANJIAN MACHINERY INTERNATIONAL TRADING LIMITED

Technical support beyond the machine sale

A direct used excavator supplier in China with our own refurbishment team, real-machine inspection photos and working videos. Customers who buy a used excavator from YUANJIAN receive available, applicable resources and free machine guidance for 5 years after purchase.

Request resources for my machineContact YUANJIAN
Resource access, safety and service terms

Public pages contain original YUANJIAN explanations and selected catalogue metadata. Complete documents are supplied only where available, applicable and permitted. Manufacturer rights remain with their owners; YUANJIAN is not a Caterpillar-authorized service center. These indexed collections can combine engine and machine chapters, languages and revisions. Confirm the complete machine serial number, engine identity and the current procedure before repair.

Five-year guidance covers operation, maintenance questions and troubleshooting communication. It is not a five-year machine warranty and does not include free parts, consumables, freight, on-site labor or repairs. Qualified technicians must perform pressure tests, adjustments, lifting and disassembly using the serial-specific service instructions.