Description

Deutz Fahr AGROTRON 108, AGROTRON 118, AGROTRON 128 Workshop Manual

If you’ve ever tried to rebuild a Power Shuttle transmission with a generic aftermarket guide, you already know the pain: missing torque specs, hydraulic schematics that don’t match the actual valve block, and wiring diagrams that lead to dead ends. That stops here. Deutz Fahr AGROTRON 108, AGROTRON 118, AGROTRON 128 Workshop Manual is the exact document that rolls off Deutz Fahr’s own press—not a reprint, not a scan of a copy. 840 pages of factory intelligence, from the first safety note to the last conversion table.

Read the Safety Notes Before You Lift Anything

Page 3 of this manual carries the same safety warnings Deutz Fahr issues to authorized dealers. Lifting instructions, removal precautions, even the warning about clean steps and ice—it’s all in there. You can’t skip the safety section if you value your fingers. The manual spells out exactly what personal protective equipment to use and tells you to never use makeshift tools. That’s not a suggestion; it’s a directive. I’ve seen guys try to lever a gearbox with a crowbar because they didn’t have the right puller. This manual shows the proper tool.

5 Major Systems Covered in Section 10

Section 10 dives into five big areas: Transmission (Power Shuttle version), Braking System, Hydraulic Front Axle Suspension, Front Axle, and Hydraulic System (CC and LS versions). Each sub-section includes a full parts breakdown, hydraulic circuit diagrams, and step-by-step overhaul procedures. For example, the transmission section alone covers main components, the hydraulic gearbox and shuttle distribution valve, and the solenoid valve operation schematic. If your 128 is slipping out of gear, you’ll find the hydraulic test points and pressure specs in that chapter.

Transmission and Power Shuttle: Factory Schematics

The manual provides original schematics for the transmission electronic system and the clutch engagement solenoid valve. You get the exact wire colors, pin assignments, and signal voltages—not a generic drawing redrawn by some third-party artist. Understanding a Manual Transmission is one thing, but the Power Shuttle on these tractors uses a wet clutch pack and a dedicated control unit. The manual tells you the oil flow path and which valves actuate which clutch. If you need a visual backup, check a Manual Transmission overview on YouTube for the basics, but rely on this manual for the specific solenoid resistances and shuttle valve adjustments.

What Diagnostic Tools Are Needed?

Section 20 covers the “All Round Tester” kit, SERDIA 3.5 Level III software, and EDS EST45 software. You don’t have to own the factory hardware to use the manual—the wiring pinouts and component test procedures work with a standard multimeter and pressure gauge. But if you do have the ART, the manual shows how to connect it to the hydraulic lift control unit, the front axle suspension ECU, and the transmission control unit. It also walks you through renewing the engine control unit, including reading and saving data, programming, and calibrating the accelerator pedal and hand throttle.

Deutz Fahr AGROTRON 108, AGROTRON 118, AGROTRON 128 Workshop Manual: Who Needs It

Home garage enthusiasts who change their own hydraulic filters and want to understand the system. Small farm owners who maintain their own fleet. Professional technicians who bill by the hour and can’t afford to chase phantom electrical issues. This manual replaces guesswork with factory data. The “Standard Tightening Torques” section covers nuts and bolts, fittings, plugs, 37° seal fittings, and pipe eye attachments. Every torque is OEM-specified in Nm. The conversion factors table at the start makes it easy to convert to ft-lb if you prefer imperial. And the threadlockers, adhesives, sealants, and lubricants table tells you exactly which compound to use on each joint.

For related models, check out the SAME DEUTZ FAHR 26.6 30.7 Workshop Manual or the Deutz Fahr Agrovector 26.6 30.7 Workshop Manual. If you work on the 5650-5690 series, the Deutz Fahr 5650 5660 5670 5680 5690 Workshop Manual covers those models.

This manual isn’t a general guide—it’s the same document used by official Deutz Fahr service centers. You get the full introduction, safety notes, lifting instructions, and the complete set of standard tightening torques. Access the Factory Manual and start your next repair with the right specs, not a guess.

Does this manual cover the AGROTRON 108, 118, and 128 only?

Yes.

Can I use this manual for the AGROTRON 120?

No. This manual is specific to the 108, 118, and 128 models. Using it for other variants may result in incorrect torque values or wiring errors. Always match the model number.

What is the “All Round Tester” mentioned in the diagnostics section?

The All Round Tester (ART) is a dedicated diagnostic tool described in Section 20. The manual includes connection procedures for the ART to the hydraulic lift and front axle suspension control units. It also covers SERDIA 3.5 Level III software for engine ECU communication and EDS EST45 software for the transmission control unit and Infocenter. If you don’t own these tools, the manual still provides component testing specs and wiring pinouts you can use with a multimeter and pressure gauge. The ART kit itself is a handheld tester with a menu-driven interface; the manual explains how to select the language, set serial ports, and interpret error codes.

Are torque values given in imperial units?

Torques are factory-specified in Nm. The manual includes a conversion factors table. You’ll need to convert to ft-lb yourself, but the table is straightforward and covers all common units.