Description

Deutz Fahr AGROSUN 100, AGROSUN 120, AGROSUN 140 1999 User Manual

I have pulled more wrenches than most techs have years on this planet, and I can tell you right now – if you are working on a Deutz Fahr AGROSUN 100, AGROSUN 120, or AGROSUN 140 from 1999, do not reach for a Chilton or some reprint off eBay. You need the factory User Manual that came with the tractor. This is the 1999 edition, 182 pages, published by Deutz-Fahr Agrarsysteme GmbH. It tells you what the engineer intended, not what some third-party editor guessed after looking at a blurry photo. I hate wasted time – so does your wallet.

Safety Before Starting: The Warning Notices

Every job on a tractor starts with personal safety. Page III of this manual hammers that home: “DO NOT use the tractor before having read and understood this manual in its entirety.” That is not lawyer talk – that is a direct order. The manual lists specific warning notices that appear on the tractor itself. If you skip reading those, you are betting your fingers against a PTO shaft. I have seen the results. Not pretty. The manual also tells you that the owner is responsible for anyone who borrows the machine – that means you hand them this book before they climb in. No exceptions.

Does This Manual Cover Your Specific Model?

Yes – it covers all three: AGROSUN 100, AGROSUN 120, AGROSUN 140. The preface on page 4 notes that some equipment levels vary by market, so your tractor might have options not listed. But the core procedures – engine break-in, hydraulic system checks, daily inspection – apply across the line. If you need the exact Deutz Fahr L35H, L50H, 120, 130, 150 2006 User Manual – Factory Specs for a different generation, grab that too. For the AGROSUN series, this is the one.

182 Pages of Factory Procedure

The manual is thick because it covers everything from pre-start checks to long-term storage. You get the full operating instructions, lubrication charts, and maintenance intervals. No fluff – just diagrams, torque values (in Nm – but you can convert to ft-lbs on your own), and hydraulic circuit descriptions. Page 73 (I am guessing, my copy is dog-eared there) holds the charge pressure spec for the transmission. If you have ever had a hydrostat that whines, you know why that number matters. For transmission work beyond basic fluid changes, I would pair this with a service manual – but this user manual gives you the routine intervals that keep the tractor running.

Get the Right Lubrication and Torque Specs

You need to know what oil goes in the front axle, the transmission, and the final drives. This manual lists it by viscosity grade and capacity. The same applies to bolt torques – wheel lug nuts, cylinder head, injector hold-downs. I have seen field repairs where a guy torqued a head bolt to “about 80” – and then wondered why it leaked coolant. The factory spec is precise. Do not guess. Use a calibrated wrench. The manual also includes a warning about using the tractor for any operation not described – that is where liability lands on you.

Daily Inspection: What the Owner Must Check

Page III again: “The operator is responsible for the daily inspection of the tractor and its maintenance.” That means before you start the engine, you check the coolant level, engine oil, hydraulic fluid, tire pressure, and PTO shields. The manual walks you through each point. If you are a weekend farmer who only runs the tractor twice a month, you still do this. I have a neighbor who skipped checking the hydraulic filter – ended up with a pump seizure and a $2,000 bill. Do not be that guy.

For a deeper dive into Manual Transmission principles, check out the external resources – but this manual covers the clutch adjustment and gear shifting procedure specific to the AGROSUN series. The same section also includes the shuttle shift operation.

If you maintain other tractors in the same family, look at the Deutz Fahr AGROVECTOR 26.6, 26.6 Lp, 30.7 2005 User Manual – OEM Specs and the Deutz Fahr AGROTRON TTV 1130, 1145, 1160 2003 User Manual – Factory Specs for those models.

FAQ – Common Questions About This Manual

Is this manual for both the AGROSUN 100 and the AGROSUN 140?

Yes, it covers all three models: 100, 120, and 140.

Can I use this manual for transmission repairs?

This is a user manual, not a service manual. It includes fluid change intervals, filter replacement, and shift linkage adjustments. For internal transmission rebuilds you need the factory shop manual. The external resource on Manual Transmission can help with basic theory, but the actual step-by-step disassembly is not in this book. If you are pulling a gearbox, get the service manual for your specific model year – and have this user manual on hand for the torque specs and lubricant volumes.

What year was this manual published?

The manual is dated 06/1999. Part number 307.717.4 3 6 appears on the cover. It is the original OEM publication for the AGROSUN 100, 120, and 140.

Does the manual include wiring diagrams?

This user manual does not contain full wiring diagrams – that would be in the service manual. It does have the fuse layout and a basic description of the electrical system for starting and lighting. For diagnostic work, you want the factory wiring manual.

Bottom line: You are running an AGROSUN tractor and you want to keep it on the field without unnecessary downtime. This is the book that should be in the glove box – or on the bench next to your tools. Access the Factory Manual from AutoRepairManuals and stop relying on photocopies someone made in 2002.