Description

Zoumlion RT551 2013 Parts Catalog – Factory Documentation for the Rough Terrain Crane

If you have ever tried to order a replacement pulley for an RT551 boom section without the factory part number, you know the exact frustration. You spend an hour flipping through third-party catalogs hoping the picture matches, only to receive a part that doesn’t fit. This Zoumlion RT551 2013 Parts Catalog eliminates that gamble. It is 352 pages of OEM drawings, part numbers, and assembly breakdowns pulled straight from the factory. No aftermarket guesswork. No blurred photocopies. You get the same document the dealer uses to order parts. Period.

Boom System Breakdown: 31 Sub-Assemblies

Chapter 2 covers the boom system in full detail, from the basic boom assembly on page 2-2 to the jib and main boom installation. The catalog lists 31 distinct assemblies within the boom system, each with its own exploded view and parts callout. You will find telescopic sections 1 through 4, rooster sheave assemblies, pulleys, and rope guides. Every part carries a specific Zoumlion part number, like D00755918520000000Y for the basic boom assembly. The drawing shows exactly where each bolt, pin, and wear pad goes.

Parts Catalog vs. Service Manual: Know the Difference

This is a spare parts catalog, not a service manual. It will not tell you torque specs or repair procedures. What it gives you is the exact part number for every component on the RT551 rough terrain crane. If you need service information, get the corresponding service manual. But for ordering parts, this is the final word. Use it alongside ZOUMLION RT55 Rough Terrain Crane Spare Parts Catalog – Section: Chapter 3 to cross-reference chassis components.

What Do the Part Symbols Mean?

The front matter of the catalog contains a symbol table that every mechanic should read before diving into the drawings. Options are marked with ▲ (Optional 1), △ (Optional 2), ▼ (Optional 3), and ▽ (Optional 4). Letters like H and L indicate parts for high- or low-temperature regions. Symbols like A (Exchangeable) and B (Displaceable) tell you whether a part can be swapped or moved. These symbols save you from ordering the wrong variant. Ignore them at your own risk.

352 Pages of Factory Documentation

The catalog covers six major systems: Crane overview, Boom system, Chassis, Electrical system, Hydraulic system, and Swing system. Each chapter mirrors the factory layout. The hydraulic section, for example, includes 26 sub-assemblies from pump groups to control valves. The electrical section covers wiring harness diagrams with connector callouts. At 352 pages, you are getting the complete OEM parts breakdown — not a condensed aftermarket reprint.

Who Needs This Parts Catalog?

If you maintain a fleet of RT551 cranes or own one, this catalog belongs on your workbench. Home garage enthusiasts working on heavy equipment will find the diagrams clear enough to follow. Professional mechanics can hand this to a parts counter and read the part number from the page. Beginners should note: this is not a repair guide. But if you need to identify a hydraulic fitting or a boom pin, this is where you start. For the crawler crane side of things, check ZOUMLION RT35 Rough Terrain Crane Parts Catalog and ZOUMLION QUY260 Crawler Crane Parts Catalog for related models.

Source Validity: OEM Zoumlion Documentation

This catalog comes from the original Zoumlion factory PDF, edition 1, dated December 2013. The pages match the official ZO OMLION branded document exactly. I have seen too many aftermarket parts catalogs that swap part numbers or skip pages. This one is the real deal. For context on why OEM documentation matters in heavy equipment maintenance, read the Automotive Industry Overview on standards. Also refer to Automotive Industry Overview for background on part numbering systems.

Does this catalog list torque specs for assembly?

No. This is a parts catalog, not a service manual. It lists part numbers, not assembly torque values.

How do I identify the correct part number for my RT551?

The catalog is organized by machine system and sub-assembly. Each drawing contains callouts with part numbers. You will need to locate the correct section – for example, the boom system starts on page 2-2. Cross-reference the illustration with your machine’s serial number range. Zoumlion uses a prefix system; part numbers beginning with “D007559” typically indicate the RT551 model. If you are unsure, match the part visually to the diagram and note any optional symbols (▲ or △). Then use the part number to order. For engine-related parts, verify the engine model variant before ordering.

Skip the guesswork. Get the factory document that tells you exactly which part goes where. Access the Factory Manual now.