Description

Tadano ATF 70G-4 Technical Manual – Load Rating Charts & Outrigger Forces

I’ve been turning wrenches for 28 years, and I’ve seen guys bend a boom because they guessed the load chart. Don’t be that guy. This is a Tadano ATF 70G-4 Technical Manual – 57 pages of nothing but the numbers that keep your crane upright and your crew alive. If you’re running a ATF 70G-4, you need the factory load ratings and outrigger reaction forces, not some third-party reprint that copies the wrong percentages. Tadano FAUN GmbH built this machine; they put the data in this book.

Load Rating Charts: The Bones of the Lift

Flip to page 2 and you’ll see the backbone of this manual: the load rating charts. They list boom lengths from 11.0 meters to 44.0 meters, and the percentage tables for outrigger positions I through IV. The numbers running down the left column – 11,0 m, 14,8 m, 18,7 m – those are your boom lengths. The columns labeled 0%, 46%, 93%, 100% tell you exactly how much capacity you’ve got at each outrigger spread. You don’t guess; you look. Page 2 shows a 30,1 m boom with outriggers at 93% on positions II and III, and 46% on IV – that’s a real-world configuration. No fluff, no interpretation, just the factory table.

Outrigger Reaction Force Charts: Don’t Skip This

Most crane manuals bury the outrigger forces in an appendix. This one puts them right next to the load charts. The Stützkrafttabellen (German for outrigger reaction force tables) are on the same pages. You need these to know if your ground can handle the pad pressure. Set up on soft soil without checking? You’ll be picking concrete out of your teeth. The chart shows pad positions I through IV with distances in meters (0,00 to 9,00) and corresponding percentages. I’ve seen guys skip this step because they “always set up the same way.” That’s how you roll a crane.

Why Factory Documentation Beats Aftermarket

Aftermarket manuals take the original data, retype it, and introduce errors. I’ve caught torque specs off by 30% in reprints. This is the original OEM print from Tadano FAUN GmbH, serial number 2131061 included. The ISO 9001 mark on page 1 means the quality system behind this document is audited. You want a load rating for a 26,3 m boom with 93% outrigger force? The table on page 2 says 46% on II and III, 93% on IV – exactly what the factory publishes. If you’re working on a Tadano GR-1000XL-2 Technical Manual – Factory Specs for 100-Ton Crane”>Tadano GR-1000XL-2 or a Tadano AC40 Technical Manual – Factory Specs & Dimensions”>Tadano AC40, get the same kind of factory book. No compromises.

Capacités de Levage: The French Side of the Data

This manual is trilingual – German, English, French. The Capacités des levages section mirrors the load rating charts in French. If you’re running a bilingual crew in Quebec or Louisiana, that saves translation errors. The Tableaus des forces d’appui covers the outrigger reaction forces in French. Having the same data in three languages means everyone reads the same numbers. I’ve seen miscommunication cause a 70-ton lift to go sideways. This manual eliminates that risk.

Audience Fit: Who Needs This 57-Page Manual

If you own or operate a Tadano ATF 70G-4, you need this. Not the owner’s manual that comes with the cab – the Technical Manual with the load charts. Crane rental yards, heavy-lift contractors, and independent operators who move their own iron. If you’re a home garage enthusiast working on a TADANO TR-600XXL-4 Hydraulic Rough Terrain Crane Manual”>TADANO TR-600XXL-4, same rule applies: get the factory data. You don’t rebuild an engine from a parts-store schematic; you don’t lift a 70-ton load from a reprint. The 57 pages in this manual are dense with tables – no fluff, no stories, just the specs you need to make a safe lift.

FAQ: Common Questions About This Manual

Does this manual include the service procedures for the engine and hydraulics?

No. This is a load rating and outrigger force Technical Manual, not a service/repair manual. It covers Traglasttabellen, Stützkrafttabellen, Load Rating Charts, Outrigger Reaction Force Charts, and their French equivalents. For engine torque specs or hydraulic pump removal, you need a separate service manual. But for safe lifting, this is the only manual you need.

What serial numbers does this cover?

The manual is indexed for serial number 2131061. Tadano ATF 70G-4 units built around that serial range are covered. If your machine’s serial is significantly different, verify with the factory. Never assume one manual fits all years.

Are the charts in metric or imperial?

The manual uses metric – boom lengths in meters, loads in metric tons. If you need imperial conversions, you’ll have to do them yourself. The majority of crane specs outside North America are metric. Deal with it.

Can I use this manual to set up outriggers on uneven ground?

The outrigger reaction force charts give you pad loads at various spreads and percentages. You still have to level the crane and account for actual ground conditions. The manual doesn’t replace a site survey. Use it alongside a ground bearing capacity assessment. Common sense still applies.

Every time I see a crane tipped over on the news, the root cause is usually a load chart that someone didn’t read or didn’t have. This Tadano ATF 70G-4 Technical Manual gives you the factory numbers – the same ones used in the original engineering calculations. If you’ve ever rebuilt a Manual Transmission”>Manual Transmission, you know the difference between using a factory service manual versus a generic guide. The same logic applies to heavy lifting. Don’t guess. Access the Factory Manual now and put it in the cab where your operator can reach it.