Thanks very much to Nodge 68 and Arctic 2 for great help - it sounds like these are indeed push-fit and no special tool is required.

Hi all I have a leak due to corrosion from the power steering pipes on a Freelander 2, (not sure which of the three it is as I didn't do the diagnosis) so I have therefore bought the three main parts needed, namely, LR001099, LR029185 and LR026229 from Maltings who tell me they are push-fit...