Harvesters“Our Machines Must Work When It Matters”

Combines are crucial to our global food supply and reli­a­bility is non-nego­tiable. But how does John Deere ensure that every machine meets the highest stan­dards? Produc­tion Plan­ning Manager Georg Ramstetter offers a behind-the-scenes look at the company’s Zweibrücken plant.

Mr Ramstetter, you’ve been with John Deere for over twenty years and have worked at the Zweibrücken plant since 2019. Why is quality so crucial in the combine sector?

Because combines are often only in use for 30 days a year – but during that short window, they must perform flaw­lessly. Harvest time often lasts just two or three weeks, when the machines run around the clock. Climate change has narrowed these windows even further as crops ripen faster and farmers cannot afford for the machine to be down for even a single day.

When a combine stands idle, the losses are signif­i­cant. Unlike trac­tors, harvesters are not easily replaced, few farmers own more than one. That’s why we do every­thing possible to prevent a stand­still from occur­ring.

What specific actions do you take in quality assur­ance?

Our work spans key areas – quality plan­ning, process moni­toring, error analysis, and contin­uous improve­ment. We collab­o­rate closely with the design depart­ment and conduct training to proac­tively prevent errors. Regu­larly sessions keep employees in produc­tion and service up to date on new tech­nolo­gies. Customer feed­back is also central to our process. It helps us ensure that our machines exceed expec­ta­tions in quality and perfor­mance.

Produc­tion employees regu­larly attend training courses so that they under­stand inno­va­tions and are up to date with the latest tech­nology.

The JDAAT (John Deere Assembly Assist Tool) soft­ware program is partic­u­larly impor­tant in the everyday work of the assembly workers. It moni­tors torque values and alerts them to any special features of the machine.

Many employees have their own farms at home and know exactly which machine func­tions are partic­u­larly impor­tant.

How do you utilise customer feed­back?

We want to know exactly what matters to our customers. We regu­larly survey them and review warranty feed­back and complaints. Dealers also perform detailed pre-delivery inspec­tions, providing valu­able feed­back before a machine even reaches the field. Our teams monitor this process closely. We collect and analyse all feed­back both posi­tive and nega­tive to iden­tify areas for improve­ment and to eval­uate our machines’ perfor­mance. This also helps us better under­stand our customers’ needs and contin­u­ously refine our prod­ucts.

And then what happens with this feed­back?

Depending on the issue, we consult with the rele­vant depart­ment. For instance, if a discharge pipe does not extend far enough, we discuss the design team to deter­mine the cause; if an engine causes prob­lems we reach out to the supplier. Many of our employees come from farming fami­lies, so they first-hand how the machines are used and what func­tions are partic­u­larly impor­tant. That expe­ri­ence is invalu­able – it connects crafts­man­ship with prac­tical under­standing.

Here, a robot welds the side wall of a combine harvester:

Which stan­dards and tools support you in ensuring quality?

We use a range of advanced tools for assembly, error detec­tion, and docu­men­ta­tion. One of the most impor­tant is JDAAT (John Deere Assembly Assist Tool), soft­ware program which guides oper­a­tors through every step. It moni­tors torque, displays work instruc­tions, high­lights special features of each machine and confirms successful comple­tion with a green signal. Camera systems track each step, ensuring preci­sion.

Various tools support produc­tion staff in assembly, error detec­tion, and docu­men­ta­tion.
The soft­ware program JDAAT docu­ments the entire assembly process, guides step by step through the tasks, and gives a green signal upon successful comple­tion.

Another impor­tant tool is TRIS – the Tracking Real­time Infor­ma­tion System. TRIS docu­ments every produc­tion stage and stores all customer-specific details. This allows us to trace whether any compo­nents have been replaced or if any anom­alies occurred. Even years later, we can retrieve complete produc­tion data making TRIS indis­pens­able for long-term quality assur­ance. In addi­tion, a variety of digital and mechan­ical systems help us assemble weld, and test highly complex machines safely and accu­rately.

Why is your work in quality assur­ance person­ally impor­tant to you?

Ulti­mately, we all want food on our tables. Our green and yellow machines play a crucial role in making this happen by reli­ably supporting farmers during harvest. Knowing that my work contributes to some­thing so essen­tially makes me proud every single day.

Tools that safe­guard quality at the Zweibrücken plant

  • Elec­tronic torque and angle screwing systems
  • Cameras that ensure the correct tool is selected
  • Robotic welding
  • Ultra­sonic weld-seam testing
  • Gas flow moni­toring in robotic systems
  • Smart Test: elec­tronic testing tool for checking soft­ware and elec­tronic compo­nents
  • TRIS system: tracks every order detail; machines are released only when no errors remain, ; partic­u­larly helpful when parts are missing.