1. Take the guard rail off one side, then the sides can be taken off horizontally , no flexing required.
2. Remember to re fit the drip tray before attempting to adjust the OPV
3. When re fitting the case, don't drop the back panel screws inside the case. (I know to my cost that this is a bad mistake)
The valve is easy to adjust, however as you turn the nut you are also twisting the pipe.
