How to fix lifting mechanism error

Step-by-Step: How to Fix a Cutting Mechanism Error on Your RoboMate

Quick fix • Tools needed: 2.5mm Allen Key • Est. time: 10–15 mins

From time to time, your RoboMate robotic mower may display an error relating to the cutting/lifting mechanism. The good news? This is almost always caused by grass build-up and can be resolved quickly at home — no technician required.

Why Does This Error Occur?

The cutting mechanism error is typically triggered when grass clippings and debris accumulate beneath the blade discs and cutting guards. Over time, this build-up restricts the lifting mechanism for the blade, causing the mower to throw an error and stop operating.

Removing the blade discs and clearing the cutting guards is usually all it takes to free the mechanism and get your mower running again.

What You'll Need

• 2.5mm Allen Key

Step-by-Step Fix

1. Remove the blade discs
   Using a 2.5mm Allen key, undo the three Allen key screws on each cutting disc. There are two cutting discs in total, so make sure you remove the screws from both sides.
2. Lift off the plastic cutting discs
   Once the screws are out, carefully lift off each plastic cutting disc. With them removed, you should be able to see the three 2.5mm Allen key screw points where the plate attaches to the cutting disc underneath.
3. Remove the cutting guards and clear any debris
   Grass and dirt often pack under the cutting guards. Remove the guards and clear out any build-up you find. This is the most common cause of the mechanism error, and clearing it is usually enough to resolve the issue entirely.
4. Still not resolved? Remove the top cover
   If the error persists after cleaning, you can remove the two screws or rivets that hold the top cover in place and lift it off for a deeper inspection. Note that only the top cover needs to come off — the base section must remain in place, as it forms a watertight seal around the gasket.
5. Reassemble carefully
   Put the 6 screws (3 per side) back in to reassemble. Before tightening, make sure the gasket is clean with no dirt or debris caught in the seam, that everything is properly aligned, and that each screw goes in smoothly without cross-threading.

Important: When reassembling, take extra care with the gasket. Even a small amount of dirt caught in the seal can compromise the watertight integrity of the unit. Inspect the gasket visually, clean it if needed, and ensure a clean, flush fit before tightening the screws.

Preventing the Error in the Future

To reduce how often this error occurs, make it part of your regular mower maintenance routine to check beneath the blade discs and cutting guards — especially during heavy-growth seasons. A quick clear every few weeks can prevent the mechanism from seizing up and keep your mower running without interruption.

Need More Help?

Need Help Setting Up Your Robomate Robot Mower?

Whether you're creating channels, mapping boundaries, or optimising your mowing schedule, Robomate is here to help Kiwi homeowners get the most out of their robotic lawn mower. Visit robomate.co.nz for more guides, tips, and product support.