You may need to join but the manual is available to download free of charge. I took a while to find it as the site is not easy to navigate but it is under 'Files', then 'Moreporks Nest'.
FYI – Oilers, there are three in the saddle of my 280 not 2 as the manual states, the two visible on the right and one rear left which you have to move the cross slide to the front to access.