How to Replace a Combine Harvester Blade Safely and Efficiently

Proper maintenance of the combine harvester is essential to ensure high performance, precise cutting, and operational safety. One of the most important tasks is blade replacement, an operation that, if performed correctly, reduces wear and machine downtime.

Below is a simple 5-step guide to safely replace the combine harvester blade.

STEP 1 – SAFETY FIRST

Before starting, turn off the combine harvester engine and make sure the machine is completely stopped.
Always wear work gloves and safety goggles to prevent injuries.

STEP 2 – INSERT THE SAFETY BLOCKS

Raise the header and insert the safety blocks to work in a stable and controlled manner.

STEP 3 – LOOSEN THE BOLTS

Loosen the bolts securing the hold-down clips, taking care not to damage surrounding components.

STEP 4 – REPLACE THE BLADE

Remove the worn blade, install the new one, and check the correct positioning of the hold-down clips, which is essential for uniform cutting.

STEP 5 – TIGHTENING AND FINAL TEST

Tighten the bolts again and perform a test run to ensure everything is properly installed.


Regular inspection of the blades helps improve harvest quality, reduce fuel consumption, and extend the machine’s lifespan.