Problem: Your Backsaver is unable to lift your bins. (Before it did..) The Backsaver tries but can’t handle the weight.
The weight of your bin is too big for your Backsaver build, please double-check if the weight of the bin is not more than the maximum allowed weight (as printed on your machine cabinet). (Most of the times with standard machines the maximum weight is 800kgs).
Check if your battery is fully charged and supplies enough power. When operating the machine to go up and it doesn’t lift the bin and the motor drops still (without releasing the button) it is most likely a lack of energy. The problem can be both in the Battery, the charger, the wires between these parts or the plug/socket.
The battery charger should supply around 13.8V.
The filter inside the pump can get very filthy. Therefore the pump is unable to suck the oil through the hydraulics.
Clean the filter in the pump-unit. It’s inside the aluminum oil reservoir which can be reached by removing the reservoir.
The pump can be broken, try to listen to the sound of the pump and be aware of scratching-like or high frequent noise. Replacing only the pump (EAPU001) would fix the issue.
There might be a lack of hydraulic oil. Check the oil level in the reservoir. There needs to be enough oil to pump up the cylinder. (There should still be a level of oil when completely tipped over)
If there is a lack of oil, check the hose and connectors for possible leakage.