Recently my Halfords trolley jack has been failing me (wishing I hadn't bought a Halfords one now!!).
It used to take a few pumps before it moved but then worked fine. Now it doesn't work at all. Won't even lift it's own weight. So thought I'd try topping up the hydraulic oil. Even that seems difficult!!
Any thoughts on what position the jack should be in while topping up the oil??? Fully retracted or extended?