A spring's whole job is to store energy and give it back — hold something up, pull something back, keep pressure on something else. When it loses tension over time, the mechanism it was designed to run stops working the way it was supposed to. Squeegee lift is soft, doors don't latch, pressure isn't maintained. Small parts, precise consequences.
This is the genuine Nilfisk Advance OEM GAS SPRING ASSY, part number 56410025, brand new in the box. Springs are usually five- and ten-dollar parts that make the machine feel like it did new.
Not sure this is the right spring for your machine? Send us the model and serial and we'll confirm.
