Depending on the direction of travel, the rear pantograph on my RhB GE 4/4 ii is always raised. However, F7 switches between the rear pantograph up and both pantographs up which it did do initially but no longer appears to do so. Any ideas?
Try F3, then see what happens...
There should be two pantograph 'modes'...
1. the rear pantograph is raised, and goes down, and the other one raises when the direction changes.
2. the F7 key cycles through (from both down): one up, other up, first down, second down.
F3 toggles between these two 'modes' of operation.
Oh, and it is possible to clip the pantographs down, so they do not raise. - Even though the motors will fire.
HTH?
PhilP.