Zoumlion QUY260 2014 Technical Manual – Load Capacity Charts & Specs

If you are running a QUY260 crawler crane and relying on aftermarket load charts or guesses from the last guy who ran it, you are asking for a rollover. I have seen too many shops lose a crane because somebody thought a 573,300 lb lift at a 16 ft radius was close enough. This Zoumlion QUY260 2014 Technical Manual is the factory document that tells you exactly what that machine can handle. Every number on these pages was calculated by Changsha Zoomlion Heavy Industry engineers. Not a third-party reprint. Not a scan of a photocopy. 80 pages of OEM data, printed in 2014, straight from the manufacturer.

The manual covers five main boom configurations: heavy duty boom (S), light duty boom (SL), luffing jib on heavy duty boom (SW), fixed jib on heavy duty boom (SF), and heavy fixed jib on heavy duty boom (SFV). Each section lists lifting capacities in thousands of pounds at specific radii, with grey-shaded cells for strength-limited lifts and white cells for stability-limited lifts. That distinction alone can keep your crane upright. Page 4 shows the first heavy duty boom chart. Do not operate without verifying your configuration against these tables.

Load Capacity Charts: Why Guessing Gets You Killed

Every crane operator I have met has a story about a load that felt wrong. The difference between a safe lift and a tipped machine is often a few hundred pounds at the wrong radius. This manual gives you the exact lifting capacity for each boom length from 65 ft 7 in to 164 ft 0 in, in increments as small as 3 ft 3 in. The data is presented in a grid format: boom length across the top, radius down the side. For example, at a 72 ft 1 in radius with a 104 ft 11 in heavy duty boom, the capacity is 100,500 lb. That number changes when you switch to a light duty boom or add a luffing jib. The manual covers all that. Do not rely on memory. Use the chart.

Heavy Duty Boom (S) – Page 4 Data

The first chapter (page 4) is the heavy duty boom. It is the backbone of the crane’s lifting capability. The table lists capacities from a 65 ft 7 in boom at a 16 ft 4 in radius (573,300 lb) all the way to a 144 ft 3 in boom at a 144 ft 3 in radius (36,800 lb). Every row and column is pre-calculated. You will also see footnotes about the boom frame strength limit versus machine stability. If a cell is grey, the boom structure is the weak point; if white, the stability of the crane governs. That matters when you are working on uneven ground or with a partial counterweight setup. The manual does not assume you know which is which – it tells you.

Light Duty Boom (SL) and Jib Configurations

Light duty boom (SL) is for lighter picks where you need more reach. The manual dedicates a separate chapter to it. Same with the luffing jib on heavy duty boom (SW), fixed jib (SF), and heavy fixed jib (SFV). Each configuration changes the load radius and capacity limits. If you are running a fixed jib, you need the SF chart. If you are running a luffing jib, you need the SW chart. Mixing them up has caused more than one crane to fold. The manual is organized so you can flip to the right section without hunting. Do not print a third-party summary – use the actual factory numbers.

Verifying your setup against the correct chapter takes two minutes. Skipping that step can total a $500,000 machine. For the engine and transmission sections, refer to the ZOUMLION QUY260 Crawler Crane Operating Manual for operational procedures and the ZOUMLION QUY260 Crawler Crane Parts Catalog for part numbers. If you need load chart specs for a different model, check the Zoumlion RT55 2013 Technical Manual – Load Chart & Safety Specs for comparison. And if you are troubleshooting a driveline issue, the Manual Transmission section in the crawler crane service manual will have torque specs – though this technical manual is focused on lifting data, not drivetrain repair. Likewise, the Manual Transmission link leads to general transmission knowledge, but for your QUY260, stick with factory docs.

Source Authenticity: OEM vs. Aftermarket Manuals

I have seen aftermarket manuals that list capacities in metric tons and convert them wrong. I have seen ones that omit the stability/strength shading. This manual is a direct OEM production from Zoomlion (Zo Omlion on the cover). It was printed in 2014 as part of the crane’s required documentation. The cover states, “The operating manual is part of the crane! Always keep on hand!” That is not a suggestion. Do not trust a scanned copy from a forum. The original PDF has been verified against the factory original. Every page number matches the factory ToC. If a torque value or load limit is missing, you know it is because the factory did not include it, not because a reprint house cut corners.

3 Reasons to Choose This Factory Technical Manual

First, the data is complete for all five boom configurations. Second, the load chart cells differentiate between strength-limited and stability-limited capacities – a safety feature aftermarket copies often flatten into one number. Third, the manual is only 80 pages, which means every page is useful. You are not wading through filler. You get the cover, blank page, table of contents, and five technical chapters. That is it. No guesswork.

What is included in the Zoumlion QUY260 2014 Technical Manual?

It contains load capacity charts for heavy duty boom (S), light duty boom (SL), luffing jib (SW), fixed jib (SF), and heavy fixed jib (SFV). 80 pages total. Original factory formatting.

Does this manual cover repair procedures or only load charts?

This is a technical manual focused on load capacities and boom configurations. It does not include engine overhaul steps or wiring diagrams. For repairs, you need the service manual or the ZOUMLION QUY260 Crawler Crane Operating Manual.

Are the load capacities in imperial or metric units?

All capacities are listed in pounds (lb) multiplied by 1000, and radii in feet. The manual was designed for the North American market. No metric conversions needed.

Can I use this manual for a different model crane?

No. This manual is specific to the Zoumlion QUY260. Using it for a QUY200 or RT55 will give you wrong numbers. The Zoumlion RT55 2013 Technical Manual – Load Chart & Safety Specs is available for the RT55.

You are responsible for the lift. The crane does not care if you “thought” it could handle the load. Get the factory numbers, tape them to the windshield, and run the job by the book. Download the Factory Manual and keep it in the cab with the crane.